idx int64 | func_before string | Vulnerability Classification string | vul int64 | func_after string | patch string | CWE ID string | lines_before string | lines_after string |
|---|---|---|---|---|---|---|---|---|
23,300 | static int nfs41_free_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs4_free_stateid(server, stateid);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
return err;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs41_free_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs4_free_stateid(server, stateid);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,301 | static int nfs41_lock_expired(struct nfs4_state *state, struct file_lock *request)
{
int status = NFS_OK;
if (test_bit(LK_STATE_IN_USE, &state->flags))
status = nfs41_check_expired_locks(state);
if (status != NFS_OK)
status = nfs4_lock_expired(state, request);
return status;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs41_lock_expired(struct nfs4_state *state, struct file_lock *request)
{
int status = NFS_OK;
if (test_bit(LK_STATE_IN_USE, &state->flags))
status = nfs41_check_expired_locks(state);
if (status != NFS_OK)
status = nfs4_lock_expired(state, request);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,302 | static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state)
{
int status;
nfs41_clear_delegation_stateid(state);
status = nfs41_check_open_stateid(state);
if (status != NFS_OK)
status = nfs4_open_expired(sp, state);
return status;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state)
{
int status;
nfs41_clear_delegation_stateid(state);
status = nfs41_check_open_stateid(state);
if (status != NFS_OK)
status = nfs4_open_expired(sp, state);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,303 | nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info, struct nfs4_secinfo_flavors *flavors)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs41_proc_secinfo_no_name(server, fhandle, info, flavors);
switch (err) {
case 0:
case -NFS4ERR_WRONGSEC:
case -NFS4ERR_NOTSUPP:
goto out;
default:
err = nfs4_handle_exception(server, err, &exception);
}
} while (exception.retry);
out:
return err;
}
| DoS Overflow Mem. Corr. | 0 | nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info, struct nfs4_secinfo_flavors *flavors)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs41_proc_secinfo_no_name(server, fhandle, info, flavors);
switch (err) {
case 0:
case -NFS4ERR_WRONGSEC:
case -NFS4ERR_NOTSUPP:
goto out;
default:
err = nfs4_handle_exception(server, err, &exception);
}
} while (exception.retry);
out:
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,304 | nfs41_same_server_scope(struct nfs41_server_scope *a,
struct nfs41_server_scope *b)
{
if (a->server_scope_sz == b->server_scope_sz &&
memcmp(a->server_scope, b->server_scope, a->server_scope_sz) == 0)
return true;
return false;
}
| DoS Overflow Mem. Corr. | 0 | nfs41_same_server_scope(struct nfs41_server_scope *a,
struct nfs41_server_scope *b)
{
if (a->server_scope_sz == b->server_scope_sz &&
memcmp(a->server_scope, b->server_scope, a->server_scope_sz) == 0)
return true;
return false;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,305 | static int nfs41_test_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs41_test_stateid(server, stateid);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
return err;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs41_test_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs41_test_stateid(server, stateid);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,306 | static void nfs4_add_and_init_slots(struct nfs4_slot_table *tbl,
struct nfs4_slot *new,
u32 max_slots,
u32 ivalue)
{
struct nfs4_slot *old = NULL;
u32 i;
spin_lock(&tbl->slot_tbl_lock);
if (new) {
old = tbl->slots;
tbl->slots = new;
tbl->max_slots = max_slots;
}
tbl->highest_used_slotid = NFS4_NO_SLOT;
for (i = 0; i < tbl->max_slots; i++)
tbl->slots[i].seq_nr = ivalue;
spin_unlock(&tbl->slot_tbl_lock);
kfree(old);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_add_and_init_slots(struct nfs4_slot_table *tbl,
struct nfs4_slot *new,
u32 max_slots,
u32 ivalue)
{
struct nfs4_slot *old = NULL;
u32 i;
spin_lock(&tbl->slot_tbl_lock);
if (new) {
old = tbl->slots;
tbl->slots = new;
tbl->max_slots = max_slots;
}
tbl->highest_used_slotid = NFS4_NO_SLOT;
for (i = 0; i < tbl->max_slots; i++)
tbl->slots[i].seq_nr = ivalue;
spin_unlock(&tbl->slot_tbl_lock);
kfree(old);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,307 | static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
struct qstr *name, struct iattr *sattr, u32 ftype)
{
struct nfs4_createdata *data;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data != NULL) {
struct nfs_server *server = NFS_SERVER(dir);
data->msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE];
data->msg.rpc_argp = &data->arg;
data->msg.rpc_resp = &data->res;
data->arg.dir_fh = NFS_FH(dir);
data->arg.server = server;
data->arg.name = name;
data->arg.attrs = sattr;
data->arg.ftype = ftype;
data->arg.bitmask = server->attr_bitmask;
data->res.server = server;
data->res.fh = &data->fh;
data->res.fattr = &data->fattr;
nfs_fattr_init(data->res.fattr);
}
return data;
}
| DoS Overflow Mem. Corr. | 0 | static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
struct qstr *name, struct iattr *sattr, u32 ftype)
{
struct nfs4_createdata *data;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data != NULL) {
struct nfs_server *server = NFS_SERVER(dir);
data->msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE];
data->msg.rpc_argp = &data->arg;
data->msg.rpc_resp = &data->res;
data->arg.dir_fh = NFS_FH(dir);
data->arg.server = server;
data->arg.name = name;
data->arg.attrs = sattr;
data->arg.ftype = ftype;
data->arg.bitmask = server->attr_bitmask;
data->res.server = server;
data->res.fh = &data->fh;
data->res.fattr = &data->fattr;
nfs_fattr_init(data->res.fattr);
}
return data;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,308 | static struct page **nfs4_alloc_pages(size_t size, gfp_t gfp_flags)
{
struct page **pages;
int i;
pages = kcalloc(size, sizeof(struct page *), gfp_flags);
if (!pages) {
dprintk("%s: can't alloc array of %zu pages\n", __func__, size);
return NULL;
}
for (i = 0; i < size; i++) {
pages[i] = alloc_page(gfp_flags);
if (!pages[i]) {
dprintk("%s: failed to allocate page\n", __func__);
nfs4_free_pages(pages, size);
return NULL;
}
}
return pages;
}
| DoS Overflow Mem. Corr. | 0 | static struct page **nfs4_alloc_pages(size_t size, gfp_t gfp_flags)
{
struct page **pages;
int i;
pages = kcalloc(size, sizeof(struct page *), gfp_flags);
if (!pages) {
dprintk("%s: can't alloc array of %zu pages\n", __func__, size);
return NULL;
}
for (i = 0; i < size; i++) {
pages[i] = alloc_page(gfp_flags);
if (!pages[i]) {
dprintk("%s: failed to allocate page\n", __func__);
nfs4_free_pages(pages, size);
return NULL;
}
}
return pages;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,309 | nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
struct nfs_client *clp = server->nfs_client;
if (task->tk_status >= 0)
return 0;
switch(task->tk_status) {
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
if (state == NULL)
break;
nfs_remove_bad_delegation(state->inode);
case -NFS4ERR_OPENMODE:
if (state == NULL)
break;
nfs4_schedule_stateid_recovery(server, state);
goto wait_on_recovery;
case -NFS4ERR_EXPIRED:
if (state != NULL)
nfs4_schedule_stateid_recovery(server, state);
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_STALE_CLIENTID:
nfs4_schedule_lease_recovery(clp);
goto wait_on_recovery;
#if defined(CONFIG_NFS_V4_1)
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_DEADSESSION:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_SEQ_FALSE_RETRY:
case -NFS4ERR_SEQ_MISORDERED:
dprintk("%s ERROR %d, Reset session\n", __func__,
task->tk_status);
nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
task->tk_status = 0;
return -EAGAIN;
#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
nfs_inc_server_stats(server, NFSIOS_DELAY);
case -NFS4ERR_GRACE:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
task->tk_status = 0;
return -EAGAIN;
case -NFS4ERR_RETRY_UNCACHED_REP:
case -NFS4ERR_OLD_STATEID:
task->tk_status = 0;
return -EAGAIN;
}
task->tk_status = nfs4_map_errors(task->tk_status);
return 0;
wait_on_recovery:
rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
task->tk_status = 0;
return -EAGAIN;
}
| DoS Overflow Mem. Corr. | 0 | nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
struct nfs_client *clp = server->nfs_client;
if (task->tk_status >= 0)
return 0;
switch(task->tk_status) {
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
if (state == NULL)
break;
nfs_remove_bad_delegation(state->inode);
case -NFS4ERR_OPENMODE:
if (state == NULL)
break;
nfs4_schedule_stateid_recovery(server, state);
goto wait_on_recovery;
case -NFS4ERR_EXPIRED:
if (state != NULL)
nfs4_schedule_stateid_recovery(server, state);
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_STALE_CLIENTID:
nfs4_schedule_lease_recovery(clp);
goto wait_on_recovery;
#if defined(CONFIG_NFS_V4_1)
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_DEADSESSION:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_SEQ_FALSE_RETRY:
case -NFS4ERR_SEQ_MISORDERED:
dprintk("%s ERROR %d, Reset session\n", __func__,
task->tk_status);
nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
task->tk_status = 0;
return -EAGAIN;
#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
nfs_inc_server_stats(server, NFSIOS_DELAY);
case -NFS4ERR_GRACE:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
task->tk_status = 0;
return -EAGAIN;
case -NFS4ERR_RETRY_UNCACHED_REP:
case -NFS4ERR_OLD_STATEID:
task->tk_status = 0;
return -EAGAIN;
}
task->tk_status = nfs4_map_errors(task->tk_status);
return 0;
wait_on_recovery:
rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
task->tk_status = 0;
return -EAGAIN;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,310 | nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags, struct iattr *attr)
{
struct nfs4_state *state;
/* Protect against concurrent sillydeletes */
state = nfs4_do_open(dir, ctx->dentry, ctx->mode, open_flags, attr,
ctx->cred, &ctx->mdsthreshold);
if (IS_ERR(state))
return ERR_CAST(state);
ctx->state = state;
return igrab(state->inode);
}
| DoS Overflow Mem. Corr. | 0 | nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags, struct iattr *attr)
{
struct nfs4_state *state;
/* Protect against concurrent sillydeletes */
state = nfs4_do_open(dir, ctx->dentry, ctx->mode, open_flags, attr,
ctx->cred, &ctx->mdsthreshold);
if (IS_ERR(state))
return ERR_CAST(state);
ctx->state = state;
return igrab(state->inode);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,311 | static void nfs4_close_prepare(struct rpc_task *task, void *data)
{
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
struct inode *inode = calldata->inode;
int call_close = 0;
dprintk("%s: begin!\n", __func__);
if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
return;
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
calldata->arg.fmode = FMODE_READ|FMODE_WRITE;
spin_lock(&state->owner->so_lock);
/* Calculate the change in open mode */
if (state->n_rdwr == 0) {
if (state->n_rdonly == 0) {
call_close |= test_bit(NFS_O_RDONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
calldata->arg.fmode &= ~FMODE_READ;
}
if (state->n_wronly == 0) {
call_close |= test_bit(NFS_O_WRONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
calldata->arg.fmode &= ~FMODE_WRITE;
}
}
spin_unlock(&state->owner->so_lock);
if (!call_close) {
/* Note: exit _without_ calling nfs4_close_done */
task->tk_action = NULL;
goto out;
}
if (calldata->arg.fmode == 0) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE];
if (calldata->roc &&
pnfs_roc_drain(inode, &calldata->roc_barrier, task))
goto out;
}
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
if (nfs4_setup_sequence(NFS_SERVER(inode),
&calldata->arg.seq_args,
&calldata->res.seq_res,
task) != 0)
nfs_release_seqid(calldata->arg.seqid);
else
rpc_call_start(task);
out:
dprintk("%s: done!\n", __func__);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_close_prepare(struct rpc_task *task, void *data)
{
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
struct inode *inode = calldata->inode;
int call_close = 0;
dprintk("%s: begin!\n", __func__);
if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
return;
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
calldata->arg.fmode = FMODE_READ|FMODE_WRITE;
spin_lock(&state->owner->so_lock);
/* Calculate the change in open mode */
if (state->n_rdwr == 0) {
if (state->n_rdonly == 0) {
call_close |= test_bit(NFS_O_RDONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
calldata->arg.fmode &= ~FMODE_READ;
}
if (state->n_wronly == 0) {
call_close |= test_bit(NFS_O_WRONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
calldata->arg.fmode &= ~FMODE_WRITE;
}
}
spin_unlock(&state->owner->so_lock);
if (!call_close) {
/* Note: exit _without_ calling nfs4_close_done */
task->tk_action = NULL;
goto out;
}
if (calldata->arg.fmode == 0) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE];
if (calldata->roc &&
pnfs_roc_drain(inode, &calldata->roc_barrier, task))
goto out;
}
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
if (nfs4_setup_sequence(NFS_SERVER(inode),
&calldata->arg.seq_args,
&calldata->res.seq_res,
task) != 0)
nfs_release_seqid(calldata->arg.seqid);
else
rpc_call_start(task);
out:
dprintk("%s: done!\n", __func__);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,312 | static int nfs4_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
{
if (!nfs4_sequence_done(task, &data->res.seq_res))
return -EAGAIN;
return data->commit_done_cb(task, data);
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
{
if (!nfs4_sequence_done(task, &data->res.seq_res))
return -EAGAIN;
return data->commit_done_cb(task, data);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,313 | static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_commit_data *data)
{
struct inode *inode = data->inode;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return -EAGAIN;
}
return 0;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_commit_data *data)
{
struct inode *inode = data->inode;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return -EAGAIN;
}
return 0;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,314 | int nfs4_destroy_clientid(struct nfs_client *clp)
{
struct rpc_cred *cred;
int ret = 0;
if (clp->cl_mvops->minor_version < 1)
goto out;
if (clp->cl_exchange_flags == 0)
goto out;
if (clp->cl_preserve_clid)
goto out;
cred = nfs4_get_exchange_id_cred(clp);
ret = nfs4_proc_destroy_clientid(clp, cred);
if (cred)
put_rpccred(cred);
switch (ret) {
case 0:
case -NFS4ERR_STALE_CLIENTID:
clp->cl_exchange_flags = 0;
}
out:
return ret;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_destroy_clientid(struct nfs_client *clp)
{
struct rpc_cred *cred;
int ret = 0;
if (clp->cl_mvops->minor_version < 1)
goto out;
if (clp->cl_exchange_flags == 0)
goto out;
if (clp->cl_preserve_clid)
goto out;
cred = nfs4_get_exchange_id_cred(clp);
ret = nfs4_proc_destroy_clientid(clp, cred);
if (cred)
put_rpccred(cred);
switch (ret) {
case 0:
case -NFS4ERR_STALE_CLIENTID:
clp->cl_exchange_flags = 0;
}
out:
return ret;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,315 | void nfs4_destroy_session(struct nfs4_session *session)
{
struct rpc_xprt *xprt;
struct rpc_cred *cred;
cred = nfs4_get_exchange_id_cred(session->clp);
nfs4_proc_destroy_session(session, cred);
if (cred)
put_rpccred(cred);
rcu_read_lock();
xprt = rcu_dereference(session->clp->cl_rpcclient->cl_xprt);
rcu_read_unlock();
dprintk("%s Destroy backchannel for xprt %p\n",
__func__, xprt);
xprt_destroy_backchannel(xprt, NFS41_BC_MIN_CALLBACKS);
nfs4_destroy_slot_tables(session);
kfree(session);
}
| DoS Overflow Mem. Corr. | 0 | void nfs4_destroy_session(struct nfs4_session *session)
{
struct rpc_xprt *xprt;
struct rpc_cred *cred;
cred = nfs4_get_exchange_id_cred(session->clp);
nfs4_proc_destroy_session(session, cred);
if (cred)
put_rpccred(cred);
rcu_read_lock();
xprt = rcu_dereference(session->clp->cl_rpcclient->cl_xprt);
rcu_read_unlock();
dprintk("%s Destroy backchannel for xprt %p\n",
__func__, xprt);
xprt_destroy_backchannel(xprt, NFS41_BC_MIN_CALLBACKS);
nfs4_destroy_slot_tables(session);
kfree(session);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,316 | int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_closedata *calldata;
struct nfs4_state_owner *sp = state->owner;
struct rpc_task *task;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE],
.rpc_cred = state->owner->so_cred,
};
struct rpc_task_setup task_setup_data = {
.rpc_client = server->client,
.rpc_message = &msg,
.callback_ops = &nfs4_close_ops,
.workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
int status = -ENOMEM;
calldata = kzalloc(sizeof(*calldata), gfp_mask);
if (calldata == NULL)
goto out;
nfs41_init_sequence(&calldata->arg.seq_args, &calldata->res.seq_res, 1);
calldata->inode = state->inode;
calldata->state = state;
calldata->arg.fh = NFS_FH(state->inode);
calldata->arg.stateid = &state->open_stateid;
/* Serialization for the sequence id */
calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid, gfp_mask);
if (calldata->arg.seqid == NULL)
goto out_free_calldata;
calldata->arg.fmode = 0;
calldata->arg.bitmask = server->cache_consistency_bitmask;
calldata->res.fattr = &calldata->fattr;
calldata->res.seqid = calldata->arg.seqid;
calldata->res.server = server;
calldata->roc = pnfs_roc(state->inode);
nfs_sb_active(calldata->inode->i_sb);
msg.rpc_argp = &calldata->arg;
msg.rpc_resp = &calldata->res;
task_setup_data.callback_data = calldata;
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
status = 0;
if (wait)
status = rpc_wait_for_completion_task(task);
rpc_put_task(task);
return status;
out_free_calldata:
kfree(calldata);
out:
nfs4_put_open_state(state);
nfs4_put_state_owner(sp);
return status;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_closedata *calldata;
struct nfs4_state_owner *sp = state->owner;
struct rpc_task *task;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE],
.rpc_cred = state->owner->so_cred,
};
struct rpc_task_setup task_setup_data = {
.rpc_client = server->client,
.rpc_message = &msg,
.callback_ops = &nfs4_close_ops,
.workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
int status = -ENOMEM;
calldata = kzalloc(sizeof(*calldata), gfp_mask);
if (calldata == NULL)
goto out;
nfs41_init_sequence(&calldata->arg.seq_args, &calldata->res.seq_res, 1);
calldata->inode = state->inode;
calldata->state = state;
calldata->arg.fh = NFS_FH(state->inode);
calldata->arg.stateid = &state->open_stateid;
/* Serialization for the sequence id */
calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid, gfp_mask);
if (calldata->arg.seqid == NULL)
goto out_free_calldata;
calldata->arg.fmode = 0;
calldata->arg.bitmask = server->cache_consistency_bitmask;
calldata->res.fattr = &calldata->fattr;
calldata->res.seqid = calldata->arg.seqid;
calldata->res.server = server;
calldata->roc = pnfs_roc(state->inode);
nfs_sb_active(calldata->inode->i_sb);
msg.rpc_argp = &calldata->arg;
msg.rpc_resp = &calldata->res;
task_setup_data.callback_data = calldata;
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
status = 0;
if (wait)
status = rpc_wait_for_completion_task(task);
rpc_put_task(task);
return status;
out_free_calldata:
kfree(calldata);
out:
nfs4_put_open_state(state);
nfs4_put_state_owner(sp);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,317 | static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_createdata *data)
{
int status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &data->msg,
&data->arg.seq_args, &data->res.seq_res, 1);
if (status == 0) {
update_changeattr(dir, &data->res.dir_cinfo);
status = nfs_instantiate(dentry, data->res.fh, data->res.fattr);
}
return status;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_createdata *data)
{
int status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &data->msg,
&data->arg.seq_args, &data->res.seq_res, 1);
if (status == 0) {
update_changeattr(dir, &data->res.dir_cinfo);
status = nfs_instantiate(dentry, data->res.fh, data->res.fattr);
}
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,318 | static struct nfs4_state *nfs4_do_open(struct inode *dir,
struct dentry *dentry,
fmode_t fmode,
int flags,
struct iattr *sattr,
struct rpc_cred *cred,
struct nfs4_threshold **ctx_th)
{
struct nfs4_exception exception = { };
struct nfs4_state *res;
int status;
fmode &= FMODE_READ|FMODE_WRITE|FMODE_EXEC;
do {
status = _nfs4_do_open(dir, dentry, fmode, flags, sattr, cred,
&res, ctx_th);
if (status == 0)
break;
/* NOTE: BAD_SEQID means the server and client disagree about the
* book-keeping w.r.t. state-changing operations
* (OPEN/CLOSE/LOCK/LOCKU...)
* It is actually a sign of a bug on the client or on the server.
*
* If we receive a BAD_SEQID error in the particular case of
* doing an OPEN, we assume that nfs_increment_open_seqid() will
* have unhashed the old state_owner for us, and that we can
* therefore safely retry using a new one. We should still warn
* the user though...
*/
if (status == -NFS4ERR_BAD_SEQID) {
pr_warn_ratelimited("NFS: v4 server %s "
" returned a bad sequence-id error!\n",
NFS_SERVER(dir)->nfs_client->cl_hostname);
exception.retry = 1;
continue;
}
/*
* BAD_STATEID on OPEN means that the server cancelled our
* state before it received the OPEN_CONFIRM.
* Recover by retrying the request as per the discussion
* on Page 181 of RFC3530.
*/
if (status == -NFS4ERR_BAD_STATEID) {
exception.retry = 1;
continue;
}
if (status == -EAGAIN) {
/* We must have found a delegation */
exception.retry = 1;
continue;
}
res = ERR_PTR(nfs4_handle_exception(NFS_SERVER(dir),
status, &exception));
} while (exception.retry);
return res;
}
| DoS Overflow Mem. Corr. | 0 | static struct nfs4_state *nfs4_do_open(struct inode *dir,
struct dentry *dentry,
fmode_t fmode,
int flags,
struct iattr *sattr,
struct rpc_cred *cred,
struct nfs4_threshold **ctx_th)
{
struct nfs4_exception exception = { };
struct nfs4_state *res;
int status;
fmode &= FMODE_READ|FMODE_WRITE|FMODE_EXEC;
do {
status = _nfs4_do_open(dir, dentry, fmode, flags, sattr, cred,
&res, ctx_th);
if (status == 0)
break;
/* NOTE: BAD_SEQID means the server and client disagree about the
* book-keeping w.r.t. state-changing operations
* (OPEN/CLOSE/LOCK/LOCKU...)
* It is actually a sign of a bug on the client or on the server.
*
* If we receive a BAD_SEQID error in the particular case of
* doing an OPEN, we assume that nfs_increment_open_seqid() will
* have unhashed the old state_owner for us, and that we can
* therefore safely retry using a new one. We should still warn
* the user though...
*/
if (status == -NFS4ERR_BAD_SEQID) {
pr_warn_ratelimited("NFS: v4 server %s "
" returned a bad sequence-id error!\n",
NFS_SERVER(dir)->nfs_client->cl_hostname);
exception.retry = 1;
continue;
}
/*
* BAD_STATEID on OPEN means that the server cancelled our
* state before it received the OPEN_CONFIRM.
* Recover by retrying the request as per the discussion
* on Page 181 of RFC3530.
*/
if (status == -NFS4ERR_BAD_STATEID) {
exception.retry = 1;
continue;
}
if (status == -EAGAIN) {
/* We must have found a delegation */
exception.retry = 1;
continue;
}
res = ERR_PTR(nfs4_handle_exception(NFS_SERVER(dir),
status, &exception));
} while (exception.retry);
return res;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,319 | static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
struct nfs_fattr *fattr, struct iattr *sattr,
struct nfs4_state *state)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_exception exception = {
.state = state,
.inode = inode,
};
int err;
do {
err = _nfs4_do_setattr(inode, cred, fattr, sattr, state);
switch (err) {
case -NFS4ERR_OPENMODE:
if (state && !(state->state & FMODE_WRITE)) {
err = -EBADF;
if (sattr->ia_valid & ATTR_OPEN)
err = -EACCES;
goto out;
}
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out:
return err;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
struct nfs_fattr *fattr, struct iattr *sattr,
struct nfs4_state *state)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_exception exception = {
.state = state,
.inode = inode,
};
int err;
do {
err = _nfs4_do_setattr(inode, cred, fattr, sattr, state);
switch (err) {
case -NFS4ERR_OPENMODE:
if (state && !(state->state & FMODE_WRITE)) {
err = -EBADF;
if (sattr->ia_valid & ATTR_OPEN)
err = -EACCES;
goto out;
}
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out:
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,320 | static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
int i, len, status = 0;
rpc_authflavor_t flav_array[NFS_MAX_SECFLAVORS];
len = rpcauth_list_flavors(flav_array, ARRAY_SIZE(flav_array));
BUG_ON(len < 0);
for (i = 0; i < len; i++) {
/* AUTH_UNIX is the default flavor if none was specified,
* thus has already been tried. */
if (flav_array[i] == RPC_AUTH_UNIX)
continue;
status = nfs4_lookup_root_sec(server, fhandle, info, flav_array[i]);
if (status == -NFS4ERR_WRONGSEC || status == -EACCES)
continue;
break;
}
/*
* -EACCESS could mean that the user doesn't have correct permissions
* to access the mount. It could also mean that we tried to mount
* with a gss auth flavor, but rpc.gssd isn't running. Either way,
* existing mount programs don't handle -EACCES very well so it should
* be mapped to -EPERM instead.
*/
if (status == -EACCES)
status = -EPERM;
return status;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
int i, len, status = 0;
rpc_authflavor_t flav_array[NFS_MAX_SECFLAVORS];
len = rpcauth_list_flavors(flav_array, ARRAY_SIZE(flav_array));
BUG_ON(len < 0);
for (i = 0; i < len; i++) {
/* AUTH_UNIX is the default flavor if none was specified,
* thus has already been tried. */
if (flav_array[i] == RPC_AUTH_UNIX)
continue;
status = nfs4_lookup_root_sec(server, fhandle, info, flav_array[i]);
if (status == -NFS4ERR_WRONGSEC || status == -EACCES)
continue;
break;
}
/*
* -EACCESS could mean that the user doesn't have correct permissions
* to access the mount. It could also mean that we tried to mount
* with a gss auth flavor, but rpc.gssd isn't running. Either way,
* existing mount programs don't handle -EACCES very well so it should
* be mapped to -EPERM instead.
*/
if (status == -EACCES)
status = -EPERM;
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,321 | static void nfs4_free_closedata(void *data)
{
struct nfs4_closedata *calldata = data;
struct nfs4_state_owner *sp = calldata->state->owner;
struct super_block *sb = calldata->state->inode->i_sb;
if (calldata->roc)
pnfs_roc_release(calldata->state->inode);
nfs4_put_open_state(calldata->state);
nfs_free_seqid(calldata->arg.seqid);
nfs4_put_state_owner(sp);
nfs_sb_deactive_async(sb);
kfree(calldata);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_free_closedata(void *data)
{
struct nfs4_closedata *calldata = data;
struct nfs4_state_owner *sp = calldata->state->owner;
struct super_block *sb = calldata->state->inode->i_sb;
if (calldata->roc)
pnfs_roc_release(calldata->state->inode);
nfs4_put_open_state(calldata->state);
nfs_free_seqid(calldata->arg.seqid);
nfs4_put_state_owner(sp);
nfs_sb_deactive_async(sb);
kfree(calldata);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,322 | static void nfs4_free_pages(struct page **pages, size_t size)
{
int i;
if (!pages)
return;
for (i = 0; i < size; i++) {
if (!pages[i])
break;
__free_page(pages[i]);
}
kfree(pages);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_free_pages(struct page **pages, size_t size)
{
int i;
if (!pages)
return;
for (i = 0; i < size; i++) {
if (!pages[i])
break;
__free_page(pages[i]);
}
kfree(pages);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,323 | static int nfs4_get_referral(struct rpc_clnt *client, struct inode *dir,
const struct qstr *name, struct nfs_fattr *fattr,
struct nfs_fh *fhandle)
{
int status = -ENOMEM;
struct page *page = NULL;
struct nfs4_fs_locations *locations = NULL;
page = alloc_page(GFP_KERNEL);
if (page == NULL)
goto out;
locations = kmalloc(sizeof(struct nfs4_fs_locations), GFP_KERNEL);
if (locations == NULL)
goto out;
status = nfs4_proc_fs_locations(client, dir, name, locations, page);
if (status != 0)
goto out;
/* Make sure server returned a different fsid for the referral */
if (nfs_fsid_equal(&NFS_SERVER(dir)->fsid, &locations->fattr.fsid)) {
dprintk("%s: server did not return a different fsid for"
" a referral at %s\n", __func__, name->name);
status = -EIO;
goto out;
}
/* Fixup attributes for the nfs_lookup() call to nfs_fhget() */
nfs_fixup_referral_attributes(&locations->fattr);
/* replace the lookup nfs_fattr with the locations nfs_fattr */
memcpy(fattr, &locations->fattr, sizeof(struct nfs_fattr));
memset(fhandle, 0, sizeof(struct nfs_fh));
out:
if (page)
__free_page(page);
kfree(locations);
return status;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_get_referral(struct rpc_clnt *client, struct inode *dir,
const struct qstr *name, struct nfs_fattr *fattr,
struct nfs_fh *fhandle)
{
int status = -ENOMEM;
struct page *page = NULL;
struct nfs4_fs_locations *locations = NULL;
page = alloc_page(GFP_KERNEL);
if (page == NULL)
goto out;
locations = kmalloc(sizeof(struct nfs4_fs_locations), GFP_KERNEL);
if (locations == NULL)
goto out;
status = nfs4_proc_fs_locations(client, dir, name, locations, page);
if (status != 0)
goto out;
/* Make sure server returned a different fsid for the referral */
if (nfs_fsid_equal(&NFS_SERVER(dir)->fsid, &locations->fattr.fsid)) {
dprintk("%s: server did not return a different fsid for"
" a referral at %s\n", __func__, name->name);
status = -EIO;
goto out;
}
/* Fixup attributes for the nfs_lookup() call to nfs_fhget() */
nfs_fixup_referral_attributes(&locations->fattr);
/* replace the lookup nfs_fattr with the locations nfs_fattr */
memcpy(fattr, &locations->fattr, sizeof(struct nfs_fattr));
memset(fhandle, 0, sizeof(struct nfs_fh));
out:
if (page)
__free_page(page);
kfree(locations);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,324 | static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_state *state = exception->state;
struct inode *inode = exception->inode;
int ret = errorcode;
exception->retry = 0;
switch(errorcode) {
case 0:
return 0;
case -NFS4ERR_OPENMODE:
if (inode && nfs4_have_delegation(inode, FMODE_READ)) {
nfs4_inode_return_delegation(inode);
exception->retry = 1;
return 0;
}
if (state == NULL)
break;
nfs4_schedule_stateid_recovery(server, state);
goto wait_on_recovery;
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
if (state == NULL)
break;
nfs_remove_bad_delegation(state->inode);
nfs4_schedule_stateid_recovery(server, state);
goto wait_on_recovery;
case -NFS4ERR_EXPIRED:
if (state != NULL)
nfs4_schedule_stateid_recovery(server, state);
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_STALE_CLIENTID:
nfs4_schedule_lease_recovery(clp);
goto wait_on_recovery;
#if defined(CONFIG_NFS_V4_1)
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
case -NFS4ERR_SEQ_FALSE_RETRY:
case -NFS4ERR_SEQ_MISORDERED:
dprintk("%s ERROR: %d Reset session\n", __func__,
errorcode);
nfs4_schedule_session_recovery(clp->cl_session, errorcode);
goto wait_on_recovery;
#endif /* defined(CONFIG_NFS_V4_1) */
case -NFS4ERR_FILE_OPEN:
if (exception->timeout > HZ) {
/* We have retried a decent amount, time to
* fail
*/
ret = -EBUSY;
break;
}
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
case -EKEYEXPIRED:
ret = nfs4_delay(server->client, &exception->timeout);
if (ret != 0)
break;
case -NFS4ERR_RETRY_UNCACHED_REP:
case -NFS4ERR_OLD_STATEID:
exception->retry = 1;
break;
case -NFS4ERR_BADOWNER:
/* The following works around a Linux server bug! */
case -NFS4ERR_BADNAME:
if (server->caps & NFS_CAP_UIDGID_NOMAP) {
server->caps &= ~NFS_CAP_UIDGID_NOMAP;
exception->retry = 1;
printk(KERN_WARNING "NFS: v4 server %s "
"does not accept raw "
"uid/gids. "
"Reenabling the idmapper.\n",
server->nfs_client->cl_hostname);
}
}
/* We failed to handle the error */
return nfs4_map_errors(ret);
wait_on_recovery:
ret = nfs4_wait_clnt_recover(clp);
if (ret == 0)
exception->retry = 1;
return ret;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_state *state = exception->state;
struct inode *inode = exception->inode;
int ret = errorcode;
exception->retry = 0;
switch(errorcode) {
case 0:
return 0;
case -NFS4ERR_OPENMODE:
if (inode && nfs4_have_delegation(inode, FMODE_READ)) {
nfs4_inode_return_delegation(inode);
exception->retry = 1;
return 0;
}
if (state == NULL)
break;
nfs4_schedule_stateid_recovery(server, state);
goto wait_on_recovery;
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
if (state == NULL)
break;
nfs_remove_bad_delegation(state->inode);
nfs4_schedule_stateid_recovery(server, state);
goto wait_on_recovery;
case -NFS4ERR_EXPIRED:
if (state != NULL)
nfs4_schedule_stateid_recovery(server, state);
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_STALE_CLIENTID:
nfs4_schedule_lease_recovery(clp);
goto wait_on_recovery;
#if defined(CONFIG_NFS_V4_1)
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
case -NFS4ERR_SEQ_FALSE_RETRY:
case -NFS4ERR_SEQ_MISORDERED:
dprintk("%s ERROR: %d Reset session\n", __func__,
errorcode);
nfs4_schedule_session_recovery(clp->cl_session, errorcode);
goto wait_on_recovery;
#endif /* defined(CONFIG_NFS_V4_1) */
case -NFS4ERR_FILE_OPEN:
if (exception->timeout > HZ) {
/* We have retried a decent amount, time to
* fail
*/
ret = -EBUSY;
break;
}
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
case -EKEYEXPIRED:
ret = nfs4_delay(server->client, &exception->timeout);
if (ret != 0)
break;
case -NFS4ERR_RETRY_UNCACHED_REP:
case -NFS4ERR_OLD_STATEID:
exception->retry = 1;
break;
case -NFS4ERR_BADOWNER:
/* The following works around a Linux server bug! */
case -NFS4ERR_BADNAME:
if (server->caps & NFS_CAP_UIDGID_NOMAP) {
server->caps &= ~NFS_CAP_UIDGID_NOMAP;
exception->retry = 1;
printk(KERN_WARNING "NFS: v4 server %s "
"does not accept raw "
"uid/gids. "
"Reenabling the idmapper.\n",
server->nfs_client->cl_hostname);
}
}
/* We failed to handle the error */
return nfs4_map_errors(ret);
wait_on_recovery:
ret = nfs4_wait_clnt_recover(clp);
if (ret == 0)
exception->retry = 1;
return ret;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,325 | static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_state *lsp, int new_lock_owner, int error)
{
switch (error) {
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
if (new_lock_owner != 0 ||
test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags) != 0)
nfs4_schedule_stateid_recovery(server, lsp->ls_state);
break;
case -NFS4ERR_STALE_STATEID:
lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
case -NFS4ERR_EXPIRED:
nfs4_schedule_lease_recovery(server->nfs_client);
};
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_state *lsp, int new_lock_owner, int error)
{
switch (error) {
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
if (new_lock_owner != 0 ||
test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags) != 0)
nfs4_schedule_stateid_recovery(server, lsp->ls_state);
break;
case -NFS4ERR_STALE_STATEID:
lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
case -NFS4ERR_EXPIRED:
nfs4_schedule_lease_recovery(server->nfs_client);
};
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,326 | static void nfs4_init_boot_verifier(const struct nfs_client *clp,
nfs4_verifier *bootverf)
{
__be32 verf[2];
if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) {
/* An impossible timestamp guarantees this value
* will never match a generated boot time. */
verf[0] = 0;
verf[1] = (__be32)(NSEC_PER_SEC + 1);
} else {
struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
verf[0] = (__be32)nn->boot_time.tv_sec;
verf[1] = (__be32)nn->boot_time.tv_nsec;
}
memcpy(bootverf->data, verf, sizeof(bootverf->data));
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_init_boot_verifier(const struct nfs_client *clp,
nfs4_verifier *bootverf)
{
__be32 verf[2];
if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) {
/* An impossible timestamp guarantees this value
* will never match a generated boot time. */
verf[0] = 0;
verf[1] = (__be32)(NSEC_PER_SEC + 1);
} else {
struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
verf[0] = (__be32)nn->boot_time.tv_sec;
verf[1] = (__be32)nn->boot_time.tv_nsec;
}
memcpy(bootverf->data, verf, sizeof(bootverf->data));
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,327 | int nfs4_init_ds_session(struct nfs_client *clp, unsigned long lease_time)
{
struct nfs4_session *session = clp->cl_session;
int ret;
spin_lock(&clp->cl_lock);
if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
/*
* Do not set NFS_CS_CHECK_LEASE_TIME instead set the
* DS lease to be equal to the MDS lease.
*/
clp->cl_lease_time = lease_time;
clp->cl_last_renewal = jiffies;
}
spin_unlock(&clp->cl_lock);
ret = nfs41_check_session_ready(clp);
if (ret)
return ret;
/* Test for the DS role */
if (!is_ds_client(clp))
return -ENODEV;
return 0;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_init_ds_session(struct nfs_client *clp, unsigned long lease_time)
{
struct nfs4_session *session = clp->cl_session;
int ret;
spin_lock(&clp->cl_lock);
if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
/*
* Do not set NFS_CS_CHECK_LEASE_TIME instead set the
* DS lease to be equal to the MDS lease.
*/
clp->cl_lease_time = lease_time;
clp->cl_last_renewal = jiffies;
}
spin_unlock(&clp->cl_lock);
ret = nfs41_check_session_ready(clp);
if (ret)
return ret;
/* Test for the DS role */
if (!is_ds_client(clp))
return -ENODEV;
return 0;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,328 | nfs4_init_nonuniform_client_string(const struct nfs_client *clp,
char *buf, size_t len)
{
unsigned int result;
rcu_read_lock();
result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s",
clp->cl_ipaddr,
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_ADDR),
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_PROTO));
rcu_read_unlock();
return result;
}
| DoS Overflow Mem. Corr. | 0 | nfs4_init_nonuniform_client_string(const struct nfs_client *clp,
char *buf, size_t len)
{
unsigned int result;
rcu_read_lock();
result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s",
clp->cl_ipaddr,
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_ADDR),
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_PROTO));
rcu_read_unlock();
return result;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,329 | static void nfs4_init_opendata_res(struct nfs4_opendata *p)
{
p->o_res.f_attr = &p->f_attr;
p->o_res.seqid = p->o_arg.seqid;
p->c_res.seqid = p->c_arg.seqid;
p->o_res.server = p->o_arg.server;
p->o_res.access_request = p->o_arg.access;
nfs_fattr_init(&p->f_attr);
nfs_fattr_init_names(&p->f_attr, &p->owner_name, &p->group_name);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_init_opendata_res(struct nfs4_opendata *p)
{
p->o_res.f_attr = &p->f_attr;
p->o_res.seqid = p->o_arg.seqid;
p->c_res.seqid = p->c_arg.seqid;
p->o_res.server = p->o_arg.server;
p->o_res.access_request = p->o_arg.access;
nfs_fattr_init(&p->f_attr);
nfs_fattr_init_names(&p->f_attr, &p->owner_name, &p->group_name);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,330 | int nfs4_init_session(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_session *session;
unsigned int rsize, wsize;
if (!nfs4_has_session(clp))
return 0;
session = clp->cl_session;
spin_lock(&clp->cl_lock);
if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
rsize = server->rsize;
if (rsize == 0)
rsize = NFS_MAX_FILE_IO_SIZE;
wsize = server->wsize;
if (wsize == 0)
wsize = NFS_MAX_FILE_IO_SIZE;
session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
}
spin_unlock(&clp->cl_lock);
return nfs41_check_session_ready(clp);
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_init_session(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_session *session;
unsigned int rsize, wsize;
if (!nfs4_has_session(clp))
return 0;
session = clp->cl_session;
spin_lock(&clp->cl_lock);
if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
rsize = server->rsize;
if (rsize == 0)
rsize = NFS_MAX_FILE_IO_SIZE;
wsize = server->wsize;
if (wsize == 0)
wsize = NFS_MAX_FILE_IO_SIZE;
session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
}
spin_unlock(&clp->cl_lock);
return nfs41_check_session_ready(clp);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,331 | nfs4_init_uniform_client_string(const struct nfs_client *clp,
char *buf, size_t len)
{
char *nodename = clp->cl_rpcclient->cl_nodename;
if (nfs4_client_id_uniquifier[0] != '\0')
nodename = nfs4_client_id_uniquifier;
return scnprintf(buf, len, "Linux NFSv%u.%u %s",
clp->rpc_ops->version, clp->cl_minorversion,
nodename);
}
| DoS Overflow Mem. Corr. | 0 | nfs4_init_uniform_client_string(const struct nfs_client *clp,
char *buf, size_t len)
{
char *nodename = clp->cl_rpcclient->cl_nodename;
if (nfs4_client_id_uniquifier[0] != '\0')
nodename = nfs4_client_id_uniquifier;
return scnprintf(buf, len, "Linux NFSv%u.%u %s",
clp->rpc_ops->version, clp->cl_minorversion,
nodename);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,332 | static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
struct inode *inode = lgp->args.inode;
struct nfs_server *server = NFS_SERVER(inode);
struct pnfs_layout_hdr *lo;
struct nfs4_state *state = NULL;
dprintk("--> %s\n", __func__);
if (!nfs4_sequence_done(task, &lgp->res.seq_res))
goto out;
switch (task->tk_status) {
case 0:
goto out;
case -NFS4ERR_LAYOUTTRYLATER:
case -NFS4ERR_RECALLCONFLICT:
task->tk_status = -NFS4ERR_DELAY;
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_BAD_STATEID:
spin_lock(&inode->i_lock);
lo = NFS_I(inode)->layout;
if (!lo || list_empty(&lo->plh_segs)) {
spin_unlock(&inode->i_lock);
/* If the open stateid was bad, then recover it. */
state = lgp->args.ctx->state;
} else {
LIST_HEAD(head);
pnfs_mark_matching_lsegs_invalid(lo, &head, NULL);
spin_unlock(&inode->i_lock);
/* Mark the bad layout state as invalid, then
* retry using the open stateid. */
pnfs_free_lseg_list(&head);
}
}
if (nfs4_async_handle_error(task, server, state) == -EAGAIN)
rpc_restart_call_prepare(task);
out:
dprintk("<-- %s\n", __func__);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
struct inode *inode = lgp->args.inode;
struct nfs_server *server = NFS_SERVER(inode);
struct pnfs_layout_hdr *lo;
struct nfs4_state *state = NULL;
dprintk("--> %s\n", __func__);
if (!nfs4_sequence_done(task, &lgp->res.seq_res))
goto out;
switch (task->tk_status) {
case 0:
goto out;
case -NFS4ERR_LAYOUTTRYLATER:
case -NFS4ERR_RECALLCONFLICT:
task->tk_status = -NFS4ERR_DELAY;
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_BAD_STATEID:
spin_lock(&inode->i_lock);
lo = NFS_I(inode)->layout;
if (!lo || list_empty(&lo->plh_segs)) {
spin_unlock(&inode->i_lock);
/* If the open stateid was bad, then recover it. */
state = lgp->args.ctx->state;
} else {
LIST_HEAD(head);
pnfs_mark_matching_lsegs_invalid(lo, &head, NULL);
spin_unlock(&inode->i_lock);
/* Mark the bad layout state as invalid, then
* retry using the open stateid. */
pnfs_free_lseg_list(&head);
}
}
if (nfs4_async_handle_error(task, server, state) == -EAGAIN)
rpc_restart_call_prepare(task);
out:
dprintk("<-- %s\n", __func__);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,333 | static void nfs4_layoutget_release(void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
struct nfs_server *server = NFS_SERVER(lgp->args.inode);
size_t max_pages = max_response_pages(server);
dprintk("--> %s\n", __func__);
nfs4_free_pages(lgp->args.layout.pages, max_pages);
put_nfs_open_context(lgp->args.ctx);
kfree(calldata);
dprintk("<-- %s\n", __func__);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_layoutget_release(void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
struct nfs_server *server = NFS_SERVER(lgp->args.inode);
size_t max_pages = max_response_pages(server);
dprintk("--> %s\n", __func__);
nfs4_free_pages(lgp->args.layout.pages, max_pages);
put_nfs_open_context(lgp->args.ctx);
kfree(calldata);
dprintk("<-- %s\n", __func__);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,334 | static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutreturn *lrp = calldata;
struct nfs_server *server;
dprintk("--> %s\n", __func__);
if (!nfs4_sequence_done(task, &lrp->res.seq_res))
return;
server = NFS_SERVER(lrp->args.inode);
if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return;
}
dprintk("<-- %s\n", __func__);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutreturn *lrp = calldata;
struct nfs_server *server;
dprintk("--> %s\n", __func__);
if (!nfs4_sequence_done(task, &lrp->res.seq_res))
return;
server = NFS_SERVER(lrp->args.inode);
if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return;
}
dprintk("<-- %s\n", __func__);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,335 | static void nfs4_layoutreturn_release(void *calldata)
{
struct nfs4_layoutreturn *lrp = calldata;
struct pnfs_layout_hdr *lo = lrp->args.layout;
dprintk("--> %s\n", __func__);
spin_lock(&lo->plh_inode->i_lock);
if (lrp->res.lrs_present)
pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
lo->plh_block_lgets--;
spin_unlock(&lo->plh_inode->i_lock);
pnfs_put_layout_hdr(lrp->args.layout);
kfree(calldata);
dprintk("<-- %s\n", __func__);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_layoutreturn_release(void *calldata)
{
struct nfs4_layoutreturn *lrp = calldata;
struct pnfs_layout_hdr *lo = lrp->args.layout;
dprintk("--> %s\n", __func__);
spin_lock(&lo->plh_inode->i_lock);
if (lrp->res.lrs_present)
pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
lo->plh_block_lgets--;
spin_unlock(&lo->plh_inode->i_lock);
pnfs_put_layout_hdr(lrp->args.layout);
kfree(calldata);
dprintk("<-- %s\n", __func__);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,336 | int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = { };
int err;
err = nfs4_set_lock_state(state, fl);
if (err != 0)
goto out;
do {
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
switch (err) {
default:
printk(KERN_ERR "NFS: %s: unhandled error "
"%d.\n", __func__, err);
case 0:
case -ESTALE:
goto out;
case -NFS4ERR_EXPIRED:
nfs4_schedule_stateid_recovery(server, state);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
nfs4_schedule_lease_recovery(server->nfs_client);
goto out;
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
goto out;
case -ERESTARTSYS:
/*
* The show must go on: exit, but mark the
* stateid as needing recovery.
*/
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_OPENMODE:
nfs4_schedule_stateid_recovery(server, state);
err = 0;
goto out;
case -EKEYEXPIRED:
/*
* User RPCSEC_GSS context has expired.
* We cannot recover this stateid now, so
* skip it and allow recovery thread to
* proceed.
*/
err = 0;
goto out;
case -ENOMEM:
case -NFS4ERR_DENIED:
/* kill_proc(fl->fl_pid, SIGLOST, 1); */
err = 0;
goto out;
case -NFS4ERR_DELAY:
break;
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out:
return err;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = { };
int err;
err = nfs4_set_lock_state(state, fl);
if (err != 0)
goto out;
do {
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
switch (err) {
default:
printk(KERN_ERR "NFS: %s: unhandled error "
"%d.\n", __func__, err);
case 0:
case -ESTALE:
goto out;
case -NFS4ERR_EXPIRED:
nfs4_schedule_stateid_recovery(server, state);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
nfs4_schedule_lease_recovery(server->nfs_client);
goto out;
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
goto out;
case -ERESTARTSYS:
/*
* The show must go on: exit, but mark the
* stateid as needing recovery.
*/
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_OPENMODE:
nfs4_schedule_stateid_recovery(server, state);
err = 0;
goto out;
case -EKEYEXPIRED:
/*
* User RPCSEC_GSS context has expired.
* We cannot recover this stateid now, so
* skip it and allow recovery thread to
* proceed.
*/
err = 0;
goto out;
case -ENOMEM:
case -NFS4ERR_DENIED:
/* kill_proc(fl->fl_pid, SIGLOST, 1); */
err = 0;
goto out;
case -NFS4ERR_DELAY:
break;
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out:
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,337 | static void nfs4_lock_done(struct rpc_task *task, void *calldata)
{
struct nfs4_lockdata *data = calldata;
dprintk("%s: begin!\n", __func__);
if (!nfs4_sequence_done(task, &data->res.seq_res))
return;
data->rpc_status = task->tk_status;
if (data->arg.new_lock_owner != 0) {
if (data->rpc_status == 0)
nfs_confirm_seqid(&data->lsp->ls_seqid, 0);
else
goto out;
}
if (data->rpc_status == 0) {
nfs4_stateid_copy(&data->lsp->ls_stateid, &data->res.stateid);
set_bit(NFS_LOCK_INITIALIZED, &data->lsp->ls_flags);
renew_lease(NFS_SERVER(data->ctx->dentry->d_inode), data->timestamp);
}
out:
dprintk("%s: done, ret = %d!\n", __func__, data->rpc_status);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_lock_done(struct rpc_task *task, void *calldata)
{
struct nfs4_lockdata *data = calldata;
dprintk("%s: begin!\n", __func__);
if (!nfs4_sequence_done(task, &data->res.seq_res))
return;
data->rpc_status = task->tk_status;
if (data->arg.new_lock_owner != 0) {
if (data->rpc_status == 0)
nfs_confirm_seqid(&data->lsp->ls_seqid, 0);
else
goto out;
}
if (data->rpc_status == 0) {
nfs4_stateid_copy(&data->lsp->ls_stateid, &data->res.stateid);
set_bit(NFS_LOCK_INITIALIZED, &data->lsp->ls_flags);
renew_lease(NFS_SERVER(data->ctx->dentry->d_inode), data->timestamp);
}
out:
dprintk("%s: done, ret = %d!\n", __func__, data->rpc_status);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,338 | static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = {
.inode = state->inode,
};
int err;
err = nfs4_set_lock_state(state, request);
if (err != 0)
return err;
do {
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, NFS_LOCK_EXPIRED);
switch (err) {
default:
goto out;
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
nfs4_handle_exception(server, err, &exception);
err = 0;
}
} while (exception.retry);
out:
return err;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = {
.inode = state->inode,
};
int err;
err = nfs4_set_lock_state(state, request);
if (err != 0)
return err;
do {
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, NFS_LOCK_EXPIRED);
switch (err) {
default:
goto out;
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
nfs4_handle_exception(server, err, &exception);
err = 0;
}
} while (exception.retry);
out:
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,339 | static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_lockdata *data = calldata;
struct nfs4_state *state = data->lsp->ls_state;
dprintk("%s: begin!\n", __func__);
if (nfs_wait_on_sequence(data->arg.lock_seqid, task) != 0)
return;
/* Do we need to do an open_to_lock_owner? */
if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)) {
if (nfs_wait_on_sequence(data->arg.open_seqid, task) != 0)
goto out_release_lock_seqid;
data->arg.open_stateid = &state->stateid;
data->arg.new_lock_owner = 1;
data->res.open_seqid = data->arg.open_seqid;
} else
data->arg.new_lock_owner = 0;
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->server,
&data->arg.seq_args,
&data->res.seq_res,
task) == 0) {
rpc_call_start(task);
return;
}
nfs_release_seqid(data->arg.open_seqid);
out_release_lock_seqid:
nfs_release_seqid(data->arg.lock_seqid);
dprintk("%s: done!, ret = %d\n", __func__, task->tk_status);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_lockdata *data = calldata;
struct nfs4_state *state = data->lsp->ls_state;
dprintk("%s: begin!\n", __func__);
if (nfs_wait_on_sequence(data->arg.lock_seqid, task) != 0)
return;
/* Do we need to do an open_to_lock_owner? */
if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)) {
if (nfs_wait_on_sequence(data->arg.open_seqid, task) != 0)
goto out_release_lock_seqid;
data->arg.open_stateid = &state->stateid;
data->arg.new_lock_owner = 1;
data->res.open_seqid = data->arg.open_seqid;
} else
data->arg.new_lock_owner = 0;
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->server,
&data->arg.seq_args,
&data->res.seq_res,
task) == 0) {
rpc_call_start(task);
return;
}
nfs_release_seqid(data->arg.open_seqid);
out_release_lock_seqid:
nfs_release_seqid(data->arg.lock_seqid);
dprintk("%s: done!, ret = %d\n", __func__, task->tk_status);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,340 | static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = {
.inode = state->inode,
};
int err;
do {
/* Cache the lock if possible... */
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, NFS_LOCK_RECLAIM);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
return err;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = {
.inode = state->inode,
};
int err;
do {
/* Cache the lock if possible... */
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, NFS_LOCK_RECLAIM);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,341 | static void nfs4_locku_done(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
switch (task->tk_status) {
case 0:
nfs4_stateid_copy(&calldata->lsp->ls_stateid,
&calldata->res.stateid);
renew_lease(calldata->server, calldata->timestamp);
break;
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_OLD_STATEID:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
break;
default:
if (nfs4_async_handle_error(task, calldata->server, NULL) == -EAGAIN)
rpc_restart_call_prepare(task);
}
nfs_release_seqid(calldata->arg.seqid);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_locku_done(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
switch (task->tk_status) {
case 0:
nfs4_stateid_copy(&calldata->lsp->ls_stateid,
&calldata->res.stateid);
renew_lease(calldata->server, calldata->timestamp);
break;
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_OLD_STATEID:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
break;
default:
if (nfs4_async_handle_error(task, calldata->server, NULL) == -EAGAIN)
rpc_restart_call_prepare(task);
}
nfs_release_seqid(calldata->arg.seqid);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,342 | static void nfs4_locku_prepare(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
return;
if (test_bit(NFS_LOCK_INITIALIZED, &calldata->lsp->ls_flags) == 0) {
/* Note: exit _without_ running nfs4_locku_done */
task->tk_action = NULL;
return;
}
calldata->timestamp = jiffies;
if (nfs4_setup_sequence(calldata->server,
&calldata->arg.seq_args,
&calldata->res.seq_res,
task) != 0)
nfs_release_seqid(calldata->arg.seqid);
else
rpc_call_start(task);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_locku_prepare(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
return;
if (test_bit(NFS_LOCK_INITIALIZED, &calldata->lsp->ls_flags) == 0) {
/* Note: exit _without_ running nfs4_locku_done */
task->tk_action = NULL;
return;
}
calldata->timestamp = jiffies;
if (nfs4_setup_sequence(calldata->server,
&calldata->arg.seq_args,
&calldata->res.seq_res,
task) != 0)
nfs_release_seqid(calldata->arg.seqid);
else
rpc_call_start(task);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,343 | static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs4_lookup_root(server, fhandle, info);
switch (err) {
case 0:
case -NFS4ERR_WRONGSEC:
goto out;
default:
err = nfs4_handle_exception(server, err, &exception);
}
} while (exception.retry);
out:
return err;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
struct nfs4_exception exception = { };
int err;
do {
err = _nfs4_lookup_root(server, fhandle, info);
switch (err) {
case 0:
case -NFS4ERR_WRONGSEC:
goto out;
default:
err = nfs4_handle_exception(server, err, &exception);
}
} while (exception.retry);
out:
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,344 | static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info, rpc_authflavor_t flavor)
{
struct rpc_auth *auth;
int ret;
auth = rpcauth_create(flavor, server->client);
if (IS_ERR(auth)) {
ret = -EIO;
goto out;
}
ret = nfs4_lookup_root(server, fhandle, info);
out:
return ret;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info, rpc_authflavor_t flavor)
{
struct rpc_auth *auth;
int ret;
auth = rpcauth_create(flavor, server->client);
if (IS_ERR(auth)) {
ret = -EIO;
goto out;
}
ret = nfs4_lookup_root(server, fhandle, info);
out:
return ret;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,345 | static int nfs4_map_errors(int err)
{
if (err >= -1000)
return err;
switch (err) {
case -NFS4ERR_RESOURCE:
return -EREMOTEIO;
case -NFS4ERR_WRONGSEC:
return -EPERM;
case -NFS4ERR_BADOWNER:
case -NFS4ERR_BADNAME:
return -EINVAL;
case -NFS4ERR_SHARE_DENIED:
return -EACCES;
case -NFS4ERR_MINOR_VERS_MISMATCH:
return -EPROTONOSUPPORT;
case -NFS4ERR_ACCESS:
return -EACCES;
default:
dprintk("%s could not handle NFSv4 error %d\n",
__func__, -err);
break;
}
return -EIO;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_map_errors(int err)
{
if (err >= -1000)
return err;
switch (err) {
case -NFS4ERR_RESOURCE:
return -EREMOTEIO;
case -NFS4ERR_WRONGSEC:
return -EPERM;
case -NFS4ERR_BADOWNER:
case -NFS4ERR_BADNAME:
return -EINVAL;
case -NFS4ERR_SHARE_DENIED:
return -EACCES;
case -NFS4ERR_MINOR_VERS_MISMATCH:
return -EPROTONOSUPPORT;
case -NFS4ERR_ACCESS:
return -EACCES;
default:
dprintk("%s could not handle NFSv4 error %d\n",
__func__, -err);
break;
}
return -EIO;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,346 | int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
struct nfs_server *server = NFS_SERVER(state->inode);
int err;
do {
err = _nfs4_open_delegation_recall(ctx, state, stateid);
switch (err) {
case 0:
case -ENOENT:
case -ESTALE:
goto out;
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
goto out;
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
/* Don't recall a delegation if it was lost */
nfs4_schedule_lease_recovery(server->nfs_client);
goto out;
case -ERESTARTSYS:
/*
* The show must go on: exit, but mark the
* stateid as needing recovery.
*/
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
nfs_inode_find_state_and_recover(state->inode,
stateid);
nfs4_schedule_stateid_recovery(server, state);
case -EKEYEXPIRED:
/*
* User RPCSEC_GSS context has expired.
* We cannot recover this stateid now, so
* skip it and allow recovery thread to
* proceed.
*/
case -ENOMEM:
err = 0;
goto out;
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out:
return err;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
struct nfs_server *server = NFS_SERVER(state->inode);
int err;
do {
err = _nfs4_open_delegation_recall(ctx, state, stateid);
switch (err) {
case 0:
case -ENOENT:
case -ESTALE:
goto out;
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
goto out;
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
/* Don't recall a delegation if it was lost */
nfs4_schedule_lease_recovery(server->nfs_client);
goto out;
case -ERESTARTSYS:
/*
* The show must go on: exit, but mark the
* stateid as needing recovery.
*/
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
nfs_inode_find_state_and_recover(state->inode,
stateid);
nfs4_schedule_stateid_recovery(server, state);
case -EKEYEXPIRED:
/*
* User RPCSEC_GSS context has expired.
* We cannot recover this stateid now, so
* skip it and allow recovery thread to
* proceed.
*/
case -ENOMEM:
err = 0;
goto out;
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out:
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,347 | static void nfs4_open_done(struct rpc_task *task, void *calldata)
{
struct nfs4_opendata *data = calldata;
data->rpc_status = task->tk_status;
if (!nfs4_sequence_done(task, &data->o_res.seq_res))
return;
if (task->tk_status == 0) {
if (data->o_res.f_attr->valid & NFS_ATTR_FATTR_TYPE) {
switch (data->o_res.f_attr->mode & S_IFMT) {
case S_IFREG:
break;
case S_IFLNK:
data->rpc_status = -ELOOP;
break;
case S_IFDIR:
data->rpc_status = -EISDIR;
break;
default:
data->rpc_status = -ENOTDIR;
}
}
renew_lease(data->o_res.server, data->timestamp);
if (!(data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM))
nfs_confirm_seqid(&data->owner->so_seqid, 0);
}
data->rpc_done = 1;
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_open_done(struct rpc_task *task, void *calldata)
{
struct nfs4_opendata *data = calldata;
data->rpc_status = task->tk_status;
if (!nfs4_sequence_done(task, &data->o_res.seq_res))
return;
if (task->tk_status == 0) {
if (data->o_res.f_attr->valid & NFS_ATTR_FATTR_TYPE) {
switch (data->o_res.f_attr->mode & S_IFMT) {
case S_IFREG:
break;
case S_IFLNK:
data->rpc_status = -ELOOP;
break;
case S_IFDIR:
data->rpc_status = -EISDIR;
break;
default:
data->rpc_status = -ENOTDIR;
}
}
renew_lease(data->o_res.server, data->timestamp);
if (!(data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM))
nfs_confirm_seqid(&data->owner->so_seqid, 0);
}
data->rpc_done = 1;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,348 | static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_opendata *data = calldata;
struct nfs4_state_owner *sp = data->owner;
if (nfs_wait_on_sequence(data->o_arg.seqid, task) != 0)
return;
/*
* Check if we still need to send an OPEN call, or if we can use
* a delegation instead.
*/
if (data->state != NULL) {
struct nfs_delegation *delegation;
if (can_open_cached(data->state, data->o_arg.fmode, data->o_arg.open_flags))
goto out_no_action;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(data->state->inode)->delegation);
if (data->o_arg.claim != NFS4_OPEN_CLAIM_DELEGATE_CUR &&
can_open_delegated(delegation, data->o_arg.fmode))
goto unlock_no_action;
rcu_read_unlock();
}
/* Update client id. */
data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
data->o_arg.open_bitmap = &nfs4_open_noattr_bitmap[0];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->o_arg.server,
&data->o_arg.seq_args,
&data->o_res.seq_res,
task) != 0)
nfs_release_seqid(data->o_arg.seqid);
else
rpc_call_start(task);
return;
unlock_no_action:
rcu_read_unlock();
out_no_action:
task->tk_action = NULL;
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_opendata *data = calldata;
struct nfs4_state_owner *sp = data->owner;
if (nfs_wait_on_sequence(data->o_arg.seqid, task) != 0)
return;
/*
* Check if we still need to send an OPEN call, or if we can use
* a delegation instead.
*/
if (data->state != NULL) {
struct nfs_delegation *delegation;
if (can_open_cached(data->state, data->o_arg.fmode, data->o_arg.open_flags))
goto out_no_action;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(data->state->inode)->delegation);
if (data->o_arg.claim != NFS4_OPEN_CLAIM_DELEGATE_CUR &&
can_open_delegated(delegation, data->o_arg.fmode))
goto unlock_no_action;
rcu_read_unlock();
}
/* Update client id. */
data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
data->o_arg.open_bitmap = &nfs4_open_noattr_bitmap[0];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->o_arg.server,
&data->o_arg.seq_args,
&data->o_res.seq_res,
task) != 0)
nfs_release_seqid(data->o_arg.seqid);
else
rpc_call_start(task);
return;
unlock_no_action:
rcu_read_unlock();
out_no_action:
task->tk_action = NULL;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,349 | static int nfs4_opendata_access(struct rpc_cred *cred,
struct nfs4_opendata *opendata,
struct nfs4_state *state, fmode_t fmode)
{
struct nfs_access_entry cache;
u32 mask;
/* access call failed or for some reason the server doesn't
* support any access modes -- defer access call until later */
if (opendata->o_res.access_supported == 0)
return 0;
mask = 0;
/* don't check MAY_WRITE - a newly created file may not have
* write mode bits, but POSIX allows the creating process to write */
if (fmode & FMODE_READ)
mask |= MAY_READ;
if (fmode & FMODE_EXEC)
mask |= MAY_EXEC;
cache.cred = cred;
cache.jiffies = jiffies;
nfs_access_set_mask(&cache, opendata->o_res.access_result);
nfs_access_add_cache(state->inode, &cache);
if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
return 0;
/* even though OPEN succeeded, access is denied. Close the file */
nfs4_close_state(state, fmode);
return -EACCES;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_opendata_access(struct rpc_cred *cred,
struct nfs4_opendata *opendata,
struct nfs4_state *state, fmode_t fmode)
{
struct nfs_access_entry cache;
u32 mask;
/* access call failed or for some reason the server doesn't
* support any access modes -- defer access call until later */
if (opendata->o_res.access_supported == 0)
return 0;
mask = 0;
/* don't check MAY_WRITE - a newly created file may not have
* write mode bits, but POSIX allows the creating process to write */
if (fmode & FMODE_READ)
mask |= MAY_READ;
if (fmode & FMODE_EXEC)
mask |= MAY_EXEC;
cache.cred = cred;
cache.jiffies = jiffies;
nfs_access_set_mask(&cache, opendata->o_res.access_result);
nfs_access_add_cache(state->inode, &cache);
if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
return 0;
/* even though OPEN succeeded, access is denied. Close the file */
nfs4_close_state(state, fmode);
return -EACCES;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,350 | static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
struct nfs4_state_owner *sp, fmode_t fmode, int flags,
const struct iattr *attrs,
gfp_t gfp_mask)
{
struct dentry *parent = dget_parent(dentry);
struct inode *dir = parent->d_inode;
struct nfs_server *server = NFS_SERVER(dir);
struct nfs4_opendata *p;
p = kzalloc(sizeof(*p), gfp_mask);
if (p == NULL)
goto err;
p->o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid, gfp_mask);
if (p->o_arg.seqid == NULL)
goto err_free;
nfs_sb_active(dentry->d_sb);
p->dentry = dget(dentry);
p->dir = parent;
p->owner = sp;
atomic_inc(&sp->so_count);
p->o_arg.fh = NFS_FH(dir);
p->o_arg.open_flags = flags;
p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
/* don't put an ACCESS op in OPEN compound if O_EXCL, because ACCESS
* will return permission denied for all bits until close */
if (!(flags & O_EXCL)) {
/* ask server to check for all possible rights as results
* are cached */
p->o_arg.access = NFS4_ACCESS_READ | NFS4_ACCESS_MODIFY |
NFS4_ACCESS_EXTEND | NFS4_ACCESS_EXECUTE;
}
p->o_arg.clientid = server->nfs_client->cl_clientid;
p->o_arg.id.create_time = ktime_to_ns(sp->so_seqid.create_time);
p->o_arg.id.uniquifier = sp->so_seqid.owner_id;
p->o_arg.name = &dentry->d_name;
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.open_bitmap = &nfs4_fattr_bitmap[0];
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
if (attrs != NULL && attrs->ia_valid != 0) {
__be32 verf[2];
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
verf[0] = jiffies;
verf[1] = current->pid;
memcpy(p->o_arg.u.verifier.data, verf,
sizeof(p->o_arg.u.verifier.data));
}
p->c_arg.fh = &p->o_res.fh;
p->c_arg.stateid = &p->o_res.stateid;
p->c_arg.seqid = p->o_arg.seqid;
nfs4_init_opendata_res(p);
kref_init(&p->kref);
return p;
err_free:
kfree(p);
err:
dput(parent);
return NULL;
}
| DoS Overflow Mem. Corr. | 0 | static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
struct nfs4_state_owner *sp, fmode_t fmode, int flags,
const struct iattr *attrs,
gfp_t gfp_mask)
{
struct dentry *parent = dget_parent(dentry);
struct inode *dir = parent->d_inode;
struct nfs_server *server = NFS_SERVER(dir);
struct nfs4_opendata *p;
p = kzalloc(sizeof(*p), gfp_mask);
if (p == NULL)
goto err;
p->o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid, gfp_mask);
if (p->o_arg.seqid == NULL)
goto err_free;
nfs_sb_active(dentry->d_sb);
p->dentry = dget(dentry);
p->dir = parent;
p->owner = sp;
atomic_inc(&sp->so_count);
p->o_arg.fh = NFS_FH(dir);
p->o_arg.open_flags = flags;
p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
/* don't put an ACCESS op in OPEN compound if O_EXCL, because ACCESS
* will return permission denied for all bits until close */
if (!(flags & O_EXCL)) {
/* ask server to check for all possible rights as results
* are cached */
p->o_arg.access = NFS4_ACCESS_READ | NFS4_ACCESS_MODIFY |
NFS4_ACCESS_EXTEND | NFS4_ACCESS_EXECUTE;
}
p->o_arg.clientid = server->nfs_client->cl_clientid;
p->o_arg.id.create_time = ktime_to_ns(sp->so_seqid.create_time);
p->o_arg.id.uniquifier = sp->so_seqid.owner_id;
p->o_arg.name = &dentry->d_name;
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.open_bitmap = &nfs4_fattr_bitmap[0];
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
if (attrs != NULL && attrs->ia_valid != 0) {
__be32 verf[2];
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
verf[0] = jiffies;
verf[1] = current->pid;
memcpy(p->o_arg.u.verifier.data, verf,
sizeof(p->o_arg.u.verifier.data));
}
p->c_arg.fh = &p->o_res.fh;
p->c_arg.stateid = &p->o_res.stateid;
p->c_arg.seqid = p->o_arg.seqid;
nfs4_init_opendata_res(p);
kref_init(&p->kref);
return p;
err_free:
kfree(p);
err:
dput(parent);
return NULL;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,351 | nfs4_opendata_check_deleg(struct nfs4_opendata *data, struct nfs4_state *state)
{
struct nfs_client *clp = NFS_SERVER(state->inode)->nfs_client;
struct nfs_delegation *delegation;
int delegation_flags = 0;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(state->inode)->delegation);
if (delegation)
delegation_flags = delegation->flags;
rcu_read_unlock();
if (data->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) {
pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
"returning a delegation for "
"OPEN(CLAIM_DELEGATE_CUR)\n",
clp->cl_hostname);
} else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
nfs_inode_set_delegation(state->inode,
data->owner->so_cred,
&data->o_res);
else
nfs_inode_reclaim_delegation(state->inode,
data->owner->so_cred,
&data->o_res);
}
| DoS Overflow Mem. Corr. | 0 | nfs4_opendata_check_deleg(struct nfs4_opendata *data, struct nfs4_state *state)
{
struct nfs_client *clp = NFS_SERVER(state->inode)->nfs_client;
struct nfs_delegation *delegation;
int delegation_flags = 0;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(state->inode)->delegation);
if (delegation)
delegation_flags = delegation->flags;
rcu_read_unlock();
if (data->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) {
pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
"returning a delegation for "
"OPEN(CLAIM_DELEGATE_CUR)\n",
clp->cl_hostname);
} else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
nfs_inode_set_delegation(state->inode,
data->owner->so_cred,
&data->o_res);
else
nfs_inode_reclaim_delegation(state->inode,
data->owner->so_cred,
&data->o_res);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,352 | nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data)
{
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS)
return _nfs4_opendata_reclaim_to_nfs4_state(data);
return _nfs4_opendata_to_nfs4_state(data);
}
| DoS Overflow Mem. Corr. | 0 | nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data)
{
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS)
return _nfs4_opendata_reclaim_to_nfs4_state(data);
return _nfs4_opendata_to_nfs4_state(data);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,353 | int nfs4_proc_bind_conn_to_session(struct nfs_client *clp, struct rpc_cred *cred)
{
int status;
struct nfs41_bind_conn_to_session_res res;
struct rpc_message msg = {
.rpc_proc =
&nfs4_procedures[NFSPROC4_CLNT_BIND_CONN_TO_SESSION],
.rpc_argp = clp,
.rpc_resp = &res,
.rpc_cred = cred,
};
dprintk("--> %s\n", __func__);
BUG_ON(clp == NULL);
res.session = kzalloc(sizeof(struct nfs4_session), GFP_NOFS);
if (unlikely(res.session == NULL)) {
status = -ENOMEM;
goto out;
}
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status == 0) {
if (memcmp(res.session->sess_id.data,
clp->cl_session->sess_id.data, NFS4_MAX_SESSIONID_LEN)) {
dprintk("NFS: %s: Session ID mismatch\n", __func__);
status = -EIO;
goto out_session;
}
if (res.dir != NFS4_CDFS4_BOTH) {
dprintk("NFS: %s: Unexpected direction from server\n",
__func__);
status = -EIO;
goto out_session;
}
if (res.use_conn_in_rdma_mode) {
dprintk("NFS: %s: Server returned RDMA mode = true\n",
__func__);
status = -EIO;
goto out_session;
}
}
out_session:
kfree(res.session);
out:
dprintk("<-- %s status= %d\n", __func__, status);
return status;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_bind_conn_to_session(struct nfs_client *clp, struct rpc_cred *cred)
{
int status;
struct nfs41_bind_conn_to_session_res res;
struct rpc_message msg = {
.rpc_proc =
&nfs4_procedures[NFSPROC4_CLNT_BIND_CONN_TO_SESSION],
.rpc_argp = clp,
.rpc_resp = &res,
.rpc_cred = cred,
};
dprintk("--> %s\n", __func__);
BUG_ON(clp == NULL);
res.session = kzalloc(sizeof(struct nfs4_session), GFP_NOFS);
if (unlikely(res.session == NULL)) {
status = -ENOMEM;
goto out;
}
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status == 0) {
if (memcmp(res.session->sess_id.data,
clp->cl_session->sess_id.data, NFS4_MAX_SESSIONID_LEN)) {
dprintk("NFS: %s: Session ID mismatch\n", __func__);
status = -EIO;
goto out_session;
}
if (res.dir != NFS4_CDFS4_BOTH) {
dprintk("NFS: %s: Unexpected direction from server\n",
__func__);
status = -EIO;
goto out_session;
}
if (res.use_conn_in_rdma_mode) {
dprintk("NFS: %s: Server returned RDMA mode = true\n",
__func__);
status = -EIO;
goto out_session;
}
}
out_session:
kfree(res.session);
out:
dprintk("<-- %s status= %d\n", __func__, status);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,354 | static void nfs4_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
{
struct nfs_server *server = NFS_SERVER(data->inode);
if (data->commit_done_cb == NULL)
data->commit_done_cb = nfs4_commit_done_cb;
data->res.server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COMMIT];
nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
{
struct nfs_server *server = NFS_SERVER(data->inode);
if (data->commit_done_cb == NULL)
data->commit_done_cb = nfs4_commit_done_cb;
data->res.server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COMMIT];
nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,355 | nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
int flags)
{
struct nfs_open_context *ctx;
struct nfs4_state *state;
int status = 0;
ctx = alloc_nfs_open_context(dentry, FMODE_READ);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
sattr->ia_mode &= ~current_umask();
state = nfs4_do_open(dir, dentry, ctx->mode,
flags, sattr, ctx->cred,
&ctx->mdsthreshold);
d_drop(dentry);
if (IS_ERR(state)) {
status = PTR_ERR(state);
goto out;
}
d_add(dentry, igrab(state->inode));
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
ctx->state = state;
out:
put_nfs_open_context(ctx);
return status;
}
| DoS Overflow Mem. Corr. | 0 | nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
int flags)
{
struct nfs_open_context *ctx;
struct nfs4_state *state;
int status = 0;
ctx = alloc_nfs_open_context(dentry, FMODE_READ);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
sattr->ia_mode &= ~current_umask();
state = nfs4_do_open(dir, dentry, ctx->mode,
flags, sattr, ctx->cred,
&ctx->mdsthreshold);
d_drop(dentry);
if (IS_ERR(state)) {
status = PTR_ERR(state);
goto out;
}
d_add(dentry, igrab(state->inode));
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
ctx->state = state;
out:
put_nfs_open_context(ctx);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,356 | int nfs4_proc_create_session(struct nfs_client *clp, struct rpc_cred *cred)
{
int status;
unsigned *ptr;
struct nfs4_session *session = clp->cl_session;
dprintk("--> %s clp=%p session=%p\n", __func__, clp, session);
status = _nfs4_proc_create_session(clp, cred);
if (status)
goto out;
/* Init or reset the session slot tables */
status = nfs4_setup_session_slot_tables(session);
dprintk("slot table setup returned %d\n", status);
if (status)
goto out;
ptr = (unsigned *)&session->sess_id.data[0];
dprintk("%s client>seqid %d sessionid %u:%u:%u:%u\n", __func__,
clp->cl_seqid, ptr[0], ptr[1], ptr[2], ptr[3]);
out:
dprintk("<-- %s\n", __func__);
return status;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_create_session(struct nfs_client *clp, struct rpc_cred *cred)
{
int status;
unsigned *ptr;
struct nfs4_session *session = clp->cl_session;
dprintk("--> %s clp=%p session=%p\n", __func__, clp, session);
status = _nfs4_proc_create_session(clp, cred);
if (status)
goto out;
/* Init or reset the session slot tables */
status = nfs4_setup_session_slot_tables(session);
dprintk("slot table setup returned %d\n", status);
if (status)
goto out;
ptr = (unsigned *)&session->sess_id.data[0];
dprintk("%s client>seqid %d sessionid %u:%u:%u:%u\n", __func__,
clp->cl_seqid, ptr[0], ptr[1], ptr[2], ptr[3]);
out:
dprintk("<-- %s\n", __func__);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,357 | int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
{
nfs4_verifier verifier;
struct nfs41_exchange_id_args args = {
.verifier = &verifier,
.client = clp,
.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER,
};
struct nfs41_exchange_id_res res = {
0
};
int status;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_EXCHANGE_ID],
.rpc_argp = &args,
.rpc_resp = &res,
.rpc_cred = cred,
};
nfs4_init_boot_verifier(clp, &verifier);
args.id_len = nfs4_init_uniform_client_string(clp, args.id,
sizeof(args.id));
dprintk("NFS call exchange_id auth=%s, '%.*s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
args.id_len, args.id);
res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),
GFP_NOFS);
if (unlikely(res.server_owner == NULL)) {
status = -ENOMEM;
goto out;
}
res.server_scope = kzalloc(sizeof(struct nfs41_server_scope),
GFP_NOFS);
if (unlikely(res.server_scope == NULL)) {
status = -ENOMEM;
goto out_server_owner;
}
res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS);
if (unlikely(res.impl_id == NULL)) {
status = -ENOMEM;
goto out_server_scope;
}
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status == 0)
status = nfs4_check_cl_exchange_flags(res.flags);
if (status == 0) {
clp->cl_clientid = res.clientid;
clp->cl_exchange_flags = (res.flags & ~EXCHGID4_FLAG_CONFIRMED_R);
if (!(res.flags & EXCHGID4_FLAG_CONFIRMED_R))
clp->cl_seqid = res.seqid;
kfree(clp->cl_serverowner);
clp->cl_serverowner = res.server_owner;
res.server_owner = NULL;
/* use the most recent implementation id */
kfree(clp->cl_implid);
clp->cl_implid = res.impl_id;
if (clp->cl_serverscope != NULL &&
!nfs41_same_server_scope(clp->cl_serverscope,
res.server_scope)) {
dprintk("%s: server_scope mismatch detected\n",
__func__);
set_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state);
kfree(clp->cl_serverscope);
clp->cl_serverscope = NULL;
}
if (clp->cl_serverscope == NULL) {
clp->cl_serverscope = res.server_scope;
goto out;
}
} else
kfree(res.impl_id);
out_server_owner:
kfree(res.server_owner);
out_server_scope:
kfree(res.server_scope);
out:
if (clp->cl_implid != NULL)
dprintk("NFS reply exchange_id: Server Implementation ID: "
"domain: %s, name: %s, date: %llu,%u\n",
clp->cl_implid->domain, clp->cl_implid->name,
clp->cl_implid->date.seconds,
clp->cl_implid->date.nseconds);
dprintk("NFS reply exchange_id: %d\n", status);
return status;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
{
nfs4_verifier verifier;
struct nfs41_exchange_id_args args = {
.verifier = &verifier,
.client = clp,
.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER,
};
struct nfs41_exchange_id_res res = {
0
};
int status;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_EXCHANGE_ID],
.rpc_argp = &args,
.rpc_resp = &res,
.rpc_cred = cred,
};
nfs4_init_boot_verifier(clp, &verifier);
args.id_len = nfs4_init_uniform_client_string(clp, args.id,
sizeof(args.id));
dprintk("NFS call exchange_id auth=%s, '%.*s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
args.id_len, args.id);
res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),
GFP_NOFS);
if (unlikely(res.server_owner == NULL)) {
status = -ENOMEM;
goto out;
}
res.server_scope = kzalloc(sizeof(struct nfs41_server_scope),
GFP_NOFS);
if (unlikely(res.server_scope == NULL)) {
status = -ENOMEM;
goto out_server_owner;
}
res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS);
if (unlikely(res.impl_id == NULL)) {
status = -ENOMEM;
goto out_server_scope;
}
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status == 0)
status = nfs4_check_cl_exchange_flags(res.flags);
if (status == 0) {
clp->cl_clientid = res.clientid;
clp->cl_exchange_flags = (res.flags & ~EXCHGID4_FLAG_CONFIRMED_R);
if (!(res.flags & EXCHGID4_FLAG_CONFIRMED_R))
clp->cl_seqid = res.seqid;
kfree(clp->cl_serverowner);
clp->cl_serverowner = res.server_owner;
res.server_owner = NULL;
/* use the most recent implementation id */
kfree(clp->cl_implid);
clp->cl_implid = res.impl_id;
if (clp->cl_serverscope != NULL &&
!nfs41_same_server_scope(clp->cl_serverscope,
res.server_scope)) {
dprintk("%s: server_scope mismatch detected\n",
__func__);
set_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state);
kfree(clp->cl_serverscope);
clp->cl_serverscope = NULL;
}
if (clp->cl_serverscope == NULL) {
clp->cl_serverscope = res.server_scope;
goto out;
}
} else
kfree(res.impl_id);
out_server_owner:
kfree(res.server_owner);
out_server_scope:
kfree(res.server_scope);
out:
if (clp->cl_implid != NULL)
dprintk("NFS reply exchange_id: Server Implementation ID: "
"domain: %s, name: %s, date: %llu,%u\n",
clp->cl_implid->domain, clp->cl_implid->name,
clp->cl_implid->date.seconds,
clp->cl_implid->date.nseconds);
dprintk("NFS reply exchange_id: %d\n", status);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,358 | int nfs4_proc_fs_locations(struct rpc_clnt *client, struct inode *dir,
const struct qstr *name,
struct nfs4_fs_locations *fs_locations,
struct page *page)
{
struct nfs4_exception exception = { };
int err;
do {
err = nfs4_handle_exception(NFS_SERVER(dir),
_nfs4_proc_fs_locations(client, dir, name, fs_locations, page),
&exception);
} while (exception.retry);
return err;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_fs_locations(struct rpc_clnt *client, struct inode *dir,
const struct qstr *name,
struct nfs4_fs_locations *fs_locations,
struct page *page)
{
struct nfs4_exception exception = { };
int err;
do {
err = nfs4_handle_exception(NFS_SERVER(dir),
_nfs4_proc_fs_locations(client, dir, name, fs_locations, page),
&exception);
} while (exception.retry);
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,359 | static int nfs4_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
{
int error;
nfs_fattr_init(fsinfo->fattr);
error = nfs4_do_fsinfo(server, fhandle, fsinfo);
if (error == 0) {
/* block layout checks this! */
server->pnfs_blksize = fsinfo->blksize;
set_pnfs_layoutdriver(server, fhandle, fsinfo->layouttype);
}
return error;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
{
int error;
nfs_fattr_init(fsinfo->fattr);
error = nfs4_do_fsinfo(server, fhandle, fsinfo);
if (error == 0) {
/* block layout checks this! */
server->pnfs_blksize = fsinfo->blksize;
set_pnfs_layoutdriver(server, fhandle, fsinfo->layouttype);
}
return error;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,360 | static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *mntfh,
struct nfs_fsinfo *info)
{
int error;
struct nfs_fattr *fattr = info->fattr;
error = nfs4_server_capabilities(server, mntfh);
if (error < 0) {
dprintk("nfs4_get_root: getcaps error = %d\n", -error);
return error;
}
error = nfs4_proc_getattr(server, mntfh, fattr);
if (error < 0) {
dprintk("nfs4_get_root: getattr error = %d\n", -error);
return error;
}
if (fattr->valid & NFS_ATTR_FATTR_FSID &&
!nfs_fsid_equal(&server->fsid, &fattr->fsid))
memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));
return error;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *mntfh,
struct nfs_fsinfo *info)
{
int error;
struct nfs_fattr *fattr = info->fattr;
error = nfs4_server_capabilities(server, mntfh);
if (error < 0) {
dprintk("nfs4_get_root: getcaps error = %d\n", -error);
return error;
}
error = nfs4_proc_getattr(server, mntfh, fattr);
if (error < 0) {
dprintk("nfs4_get_root: getattr error = %d\n", -error);
return error;
}
if (fattr->valid & NFS_ATTR_FATTR_FSID &&
!nfs_fsid_equal(&server->fsid, &fattr->fsid))
memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));
return error;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,361 | int nfs4_proc_get_rootfh(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
int minor_version = server->nfs_client->cl_minorversion;
int status = nfs4_lookup_root(server, fhandle, info);
if ((status == -NFS4ERR_WRONGSEC) && !(server->flags & NFS_MOUNT_SECFLAVOUR))
/*
* A status of -NFS4ERR_WRONGSEC will be mapped to -EPERM
* by nfs4_map_errors() as this function exits.
*/
status = nfs_v4_minor_ops[minor_version]->find_root_sec(server, fhandle, info);
if (status == 0)
status = nfs4_server_capabilities(server, fhandle);
if (status == 0)
status = nfs4_do_fsinfo(server, fhandle, info);
return nfs4_map_errors(status);
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_get_rootfh(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
int minor_version = server->nfs_client->cl_minorversion;
int status = nfs4_lookup_root(server, fhandle, info);
if ((status == -NFS4ERR_WRONGSEC) && !(server->flags & NFS_MOUNT_SECFLAVOUR))
/*
* A status of -NFS4ERR_WRONGSEC will be mapped to -EPERM
* by nfs4_map_errors() as this function exits.
*/
status = nfs_v4_minor_ops[minor_version]->find_root_sec(server, fhandle, info);
if (status == 0)
status = nfs4_server_capabilities(server, fhandle);
if (status == 0)
status = nfs4_do_fsinfo(server, fhandle, info);
return nfs4_map_errors(status);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,362 | nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
{
struct nfs_server *server = NFS_SERVER(lgp->args.inode);
size_t max_pages = max_response_pages(server);
struct rpc_task *task;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTGET],
.rpc_argp = &lgp->args,
.rpc_resp = &lgp->res,
};
struct rpc_task_setup task_setup_data = {
.rpc_client = server->client,
.rpc_message = &msg,
.callback_ops = &nfs4_layoutget_call_ops,
.callback_data = lgp,
.flags = RPC_TASK_ASYNC,
};
struct pnfs_layout_segment *lseg = NULL;
int status = 0;
dprintk("--> %s\n", __func__);
lgp->args.layout.pages = nfs4_alloc_pages(max_pages, gfp_flags);
if (!lgp->args.layout.pages) {
nfs4_layoutget_release(lgp);
return ERR_PTR(-ENOMEM);
}
lgp->args.layout.pglen = max_pages * PAGE_SIZE;
lgp->res.layoutp = &lgp->args.layout;
lgp->res.seq_res.sr_slot = NULL;
nfs41_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return ERR_CAST(task);
status = nfs4_wait_for_completion_rpc_task(task);
if (status == 0)
status = task->tk_status;
if (status == 0)
lseg = pnfs_layout_process(lgp);
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, status);
if (status)
return ERR_PTR(status);
return lseg;
}
| DoS Overflow Mem. Corr. | 0 | nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
{
struct nfs_server *server = NFS_SERVER(lgp->args.inode);
size_t max_pages = max_response_pages(server);
struct rpc_task *task;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTGET],
.rpc_argp = &lgp->args,
.rpc_resp = &lgp->res,
};
struct rpc_task_setup task_setup_data = {
.rpc_client = server->client,
.rpc_message = &msg,
.callback_ops = &nfs4_layoutget_call_ops,
.callback_data = lgp,
.flags = RPC_TASK_ASYNC,
};
struct pnfs_layout_segment *lseg = NULL;
int status = 0;
dprintk("--> %s\n", __func__);
lgp->args.layout.pages = nfs4_alloc_pages(max_pages, gfp_flags);
if (!lgp->args.layout.pages) {
nfs4_layoutget_release(lgp);
return ERR_PTR(-ENOMEM);
}
lgp->args.layout.pglen = max_pages * PAGE_SIZE;
lgp->res.layoutp = &lgp->args.layout;
lgp->res.seq_res.sr_slot = NULL;
nfs41_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return ERR_CAST(task);
status = nfs4_wait_for_completion_rpc_task(task);
if (status == 0)
status = task->tk_status;
if (status == 0)
lseg = pnfs_layout_process(lgp);
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, status);
if (status)
return ERR_PTR(status);
return lseg;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,363 | nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
{
struct nfs_open_context *ctx;
struct nfs4_state *state;
unsigned long timeout = NFS4_LOCK_MINTIMEOUT;
int status;
/* verify open state */
ctx = nfs_file_open_context(filp);
state = ctx->state;
if (request->fl_start < 0 || request->fl_end < 0)
return -EINVAL;
if (IS_GETLK(cmd)) {
if (state != NULL)
return nfs4_proc_getlk(state, F_GETLK, request);
return 0;
}
if (!(IS_SETLK(cmd) || IS_SETLKW(cmd)))
return -EINVAL;
if (request->fl_type == F_UNLCK) {
if (state != NULL)
return nfs4_proc_unlck(state, cmd, request);
return 0;
}
if (state == NULL)
return -ENOLCK;
/*
* Don't rely on the VFS having checked the file open mode,
* since it won't do this for flock() locks.
*/
switch (request->fl_type) {
case F_RDLCK:
if (!(filp->f_mode & FMODE_READ))
return -EBADF;
break;
case F_WRLCK:
if (!(filp->f_mode & FMODE_WRITE))
return -EBADF;
}
do {
status = nfs4_proc_setlk(state, cmd, request);
if ((status != -EAGAIN) || IS_SETLK(cmd))
break;
timeout = nfs4_set_lock_task_retry(timeout);
status = -ERESTARTSYS;
if (signalled())
break;
} while(status < 0);
return status;
}
| DoS Overflow Mem. Corr. | 0 | nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
{
struct nfs_open_context *ctx;
struct nfs4_state *state;
unsigned long timeout = NFS4_LOCK_MINTIMEOUT;
int status;
/* verify open state */
ctx = nfs_file_open_context(filp);
state = ctx->state;
if (request->fl_start < 0 || request->fl_end < 0)
return -EINVAL;
if (IS_GETLK(cmd)) {
if (state != NULL)
return nfs4_proc_getlk(state, F_GETLK, request);
return 0;
}
if (!(IS_SETLK(cmd) || IS_SETLKW(cmd)))
return -EINVAL;
if (request->fl_type == F_UNLCK) {
if (state != NULL)
return nfs4_proc_unlck(state, cmd, request);
return 0;
}
if (state == NULL)
return -ENOLCK;
/*
* Don't rely on the VFS having checked the file open mode,
* since it won't do this for flock() locks.
*/
switch (request->fl_type) {
case F_RDLCK:
if (!(filp->f_mode & FMODE_READ))
return -EBADF;
break;
case F_WRLCK:
if (!(filp->f_mode & FMODE_WRITE))
return -EBADF;
}
do {
status = nfs4_proc_setlk(state, cmd, request);
if ((status != -EAGAIN) || IS_SETLK(cmd))
break;
timeout = nfs4_set_lock_task_retry(timeout);
status = -ERESTARTSYS;
if (signalled())
break;
} while(status < 0);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,364 | static int nfs4_proc_lookup(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
int status;
struct rpc_clnt *client = NFS_CLIENT(dir);
status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr);
if (client != NFS_CLIENT(dir)) {
rpc_shutdown_client(client);
nfs_fixup_secinfo_attributes(fattr);
}
return status;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_proc_lookup(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
int status;
struct rpc_clnt *client = NFS_CLIENT(dir);
status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr);
if (client != NFS_CLIENT(dir)) {
rpc_shutdown_client(client);
nfs_fixup_secinfo_attributes(fattr);
}
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,365 | static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir,
struct qstr *name, struct nfs_fh *fhandle,
struct nfs_fattr *fattr)
{
struct nfs4_exception exception = { };
struct rpc_clnt *client = *clnt;
int err;
do {
err = _nfs4_proc_lookup(client, dir, name, fhandle, fattr);
switch (err) {
case -NFS4ERR_BADNAME:
err = -ENOENT;
goto out;
case -NFS4ERR_MOVED:
err = nfs4_get_referral(client, dir, name, fattr, fhandle);
goto out;
case -NFS4ERR_WRONGSEC:
err = -EPERM;
if (client != *clnt)
goto out;
client = nfs4_create_sec_client(client, dir, name);
if (IS_ERR(client))
return PTR_ERR(client);
exception.retry = 1;
break;
default:
err = nfs4_handle_exception(NFS_SERVER(dir), err, &exception);
}
} while (exception.retry);
out:
if (err == 0)
*clnt = client;
else if (client != *clnt)
rpc_shutdown_client(client);
return err;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir,
struct qstr *name, struct nfs_fh *fhandle,
struct nfs_fattr *fattr)
{
struct nfs4_exception exception = { };
struct rpc_clnt *client = *clnt;
int err;
do {
err = _nfs4_proc_lookup(client, dir, name, fhandle, fattr);
switch (err) {
case -NFS4ERR_BADNAME:
err = -ENOENT;
goto out;
case -NFS4ERR_MOVED:
err = nfs4_get_referral(client, dir, name, fattr, fhandle);
goto out;
case -NFS4ERR_WRONGSEC:
err = -EPERM;
if (client != *clnt)
goto out;
client = nfs4_create_sec_client(client, dir, name);
if (IS_ERR(client))
return PTR_ERR(client);
exception.retry = 1;
break;
default:
err = nfs4_handle_exception(NFS_SERVER(dir), err, &exception);
}
} while (exception.retry);
out:
if (err == 0)
*clnt = client;
else if (client != *clnt)
rpc_shutdown_client(client);
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,366 | nfs4_proc_lookup_mountpoint(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
int status;
struct rpc_clnt *client = rpc_clone_client(NFS_CLIENT(dir));
status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr);
if (status < 0) {
rpc_shutdown_client(client);
return ERR_PTR(status);
}
return client;
}
| DoS Overflow Mem. Corr. | 0 | nfs4_proc_lookup_mountpoint(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
int status;
struct rpc_clnt *client = rpc_clone_client(NFS_CLIENT(dir));
status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr);
if (status < 0) {
rpc_shutdown_client(client);
return ERR_PTR(status);
}
return client;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,367 | static void nfs4_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
{
if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
&data->args.seq_args,
&data->res.seq_res,
task))
return;
rpc_call_start(task);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
{
if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
&data->args.seq_args,
&data->res.seq_res,
task))
return;
rpc_call_start(task);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,368 | static void nfs4_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_renameargs *arg = msg->rpc_argp;
struct nfs_renameres *res = msg->rpc_resp;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENAME];
res->server = server;
nfs41_init_sequence(&arg->seq_args, &res->seq_res, 1);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_renameargs *arg = msg->rpc_argp;
struct nfs_renameres *res = msg->rpc_resp;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENAME];
res->server = server;
nfs41_init_sequence(&arg->seq_args, &res->seq_res, 1);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,369 | int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name,
struct nfs4_secinfo_flavors *flavors)
{
struct nfs4_exception exception = { };
int err;
do {
err = nfs4_handle_exception(NFS_SERVER(dir),
_nfs4_proc_secinfo(dir, name, flavors),
&exception);
} while (exception.retry);
return err;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name,
struct nfs4_secinfo_flavors *flavors)
{
struct nfs4_exception exception = { };
int err;
do {
err = nfs4_handle_exception(NFS_SERVER(dir),
_nfs4_proc_secinfo(dir, name, flavors),
&exception);
} while (exception.retry);
return err;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,370 | nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
struct iattr *sattr)
{
struct inode *inode = dentry->d_inode;
struct rpc_cred *cred = NULL;
struct nfs4_state *state = NULL;
int status;
if (pnfs_ld_layoutret_on_setattr(inode))
pnfs_return_layout(inode);
nfs_fattr_init(fattr);
/* Deal with open(O_TRUNC) */
if (sattr->ia_valid & ATTR_OPEN)
sattr->ia_valid &= ~(ATTR_MTIME|ATTR_CTIME|ATTR_OPEN);
/* Optimization: if the end result is no change, don't RPC */
if ((sattr->ia_valid & ~(ATTR_FILE)) == 0)
return 0;
/* Search for an existing open(O_WRITE) file */
if (sattr->ia_valid & ATTR_FILE) {
struct nfs_open_context *ctx;
ctx = nfs_file_open_context(sattr->ia_file);
if (ctx) {
cred = ctx->cred;
state = ctx->state;
}
}
status = nfs4_do_setattr(inode, cred, fattr, sattr, state);
if (status == 0)
nfs_setattr_update_inode(inode, sattr);
return status;
}
| DoS Overflow Mem. Corr. | 0 | nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
struct iattr *sattr)
{
struct inode *inode = dentry->d_inode;
struct rpc_cred *cred = NULL;
struct nfs4_state *state = NULL;
int status;
if (pnfs_ld_layoutret_on_setattr(inode))
pnfs_return_layout(inode);
nfs_fattr_init(fattr);
/* Deal with open(O_TRUNC) */
if (sattr->ia_valid & ATTR_OPEN)
sattr->ia_valid &= ~(ATTR_MTIME|ATTR_CTIME|ATTR_OPEN);
/* Optimization: if the end result is no change, don't RPC */
if ((sattr->ia_valid & ~(ATTR_FILE)) == 0)
return 0;
/* Search for an existing open(O_WRITE) file */
if (sattr->ia_valid & ATTR_FILE) {
struct nfs_open_context *ctx;
ctx = nfs_file_open_context(sattr->ia_file);
if (ctx) {
cred = ctx->cred;
state = ctx->state;
}
}
status = nfs4_do_setattr(inode, cred, fattr, sattr, state);
if (status == 0)
nfs_setattr_update_inode(inode, sattr);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,371 | int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
struct nfs4_setclientid_res *res)
{
nfs4_verifier sc_verifier;
struct nfs4_setclientid setclientid = {
.sc_verifier = &sc_verifier,
.sc_prog = program,
.sc_cb_ident = clp->cl_cb_ident,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID],
.rpc_argp = &setclientid,
.rpc_resp = res,
.rpc_cred = cred,
};
int status;
/* nfs_client_id4 */
nfs4_init_boot_verifier(clp, &sc_verifier);
if (test_bit(NFS_CS_MIGRATION, &clp->cl_flags))
setclientid.sc_name_len =
nfs4_init_uniform_client_string(clp,
setclientid.sc_name,
sizeof(setclientid.sc_name));
else
setclientid.sc_name_len =
nfs4_init_nonuniform_client_string(clp,
setclientid.sc_name,
sizeof(setclientid.sc_name));
/* cb_client4 */
rcu_read_lock();
setclientid.sc_netid_len = scnprintf(setclientid.sc_netid,
sizeof(setclientid.sc_netid),
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_NETID));
rcu_read_unlock();
setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr,
sizeof(setclientid.sc_uaddr), "%s.%u.%u",
clp->cl_ipaddr, port >> 8, port & 255);
dprintk("NFS call setclientid auth=%s, '%.*s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
setclientid.sc_name_len, setclientid.sc_name);
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
dprintk("NFS reply setclientid: %d\n", status);
return status;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
struct nfs4_setclientid_res *res)
{
nfs4_verifier sc_verifier;
struct nfs4_setclientid setclientid = {
.sc_verifier = &sc_verifier,
.sc_prog = program,
.sc_cb_ident = clp->cl_cb_ident,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID],
.rpc_argp = &setclientid,
.rpc_resp = res,
.rpc_cred = cred,
};
int status;
/* nfs_client_id4 */
nfs4_init_boot_verifier(clp, &sc_verifier);
if (test_bit(NFS_CS_MIGRATION, &clp->cl_flags))
setclientid.sc_name_len =
nfs4_init_uniform_client_string(clp,
setclientid.sc_name,
sizeof(setclientid.sc_name));
else
setclientid.sc_name_len =
nfs4_init_nonuniform_client_string(clp,
setclientid.sc_name,
sizeof(setclientid.sc_name));
/* cb_client4 */
rcu_read_lock();
setclientid.sc_netid_len = scnprintf(setclientid.sc_netid,
sizeof(setclientid.sc_netid),
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_NETID));
rcu_read_unlock();
setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr,
sizeof(setclientid.sc_uaddr), "%s.%u.%u",
clp->cl_ipaddr, port >> 8, port & 255);
dprintk("NFS call setclientid auth=%s, '%.*s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
setclientid.sc_name_len, setclientid.sc_name);
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
dprintk("NFS reply setclientid: %d\n", status);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,372 | int nfs4_proc_setclientid_confirm(struct nfs_client *clp,
struct nfs4_setclientid_res *arg,
struct rpc_cred *cred)
{
struct nfs_fsinfo fsinfo;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID_CONFIRM],
.rpc_argp = arg,
.rpc_resp = &fsinfo,
.rpc_cred = cred,
};
unsigned long now;
int status;
dprintk("NFS call setclientid_confirm auth=%s, (client ID %llx)\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
clp->cl_clientid);
now = jiffies;
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status == 0) {
spin_lock(&clp->cl_lock);
clp->cl_lease_time = fsinfo.lease_time * HZ;
clp->cl_last_renewal = now;
spin_unlock(&clp->cl_lock);
}
dprintk("NFS reply setclientid_confirm: %d\n", status);
return status;
}
| DoS Overflow Mem. Corr. | 0 | int nfs4_proc_setclientid_confirm(struct nfs_client *clp,
struct nfs4_setclientid_res *arg,
struct rpc_cred *cred)
{
struct nfs_fsinfo fsinfo;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID_CONFIRM],
.rpc_argp = arg,
.rpc_resp = &fsinfo,
.rpc_cred = cred,
};
unsigned long now;
int status;
dprintk("NFS call setclientid_confirm auth=%s, (client ID %llx)\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
clp->cl_clientid);
now = jiffies;
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status == 0) {
spin_lock(&clp->cl_lock);
clp->cl_lease_time = fsinfo.lease_time * HZ;
clp->cl_last_renewal = now;
spin_unlock(&clp->cl_lock);
}
dprintk("NFS reply setclientid_confirm: %d\n", status);
return status;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,373 | static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
if (!nfs4_sequence_done(task, &res->seq_res))
return 0;
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
return 1;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
if (!nfs4_sequence_done(task, &res->seq_res))
return 0;
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
return 1;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,374 | static void nfs4_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_removeargs *args = msg->rpc_argp;
struct nfs_removeres *res = msg->rpc_resp;
res->server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
nfs41_init_sequence(&args->seq_args, &res->seq_res, 1);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_removeargs *args = msg->rpc_argp;
struct nfs_removeres *res = msg->rpc_resp;
res->server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
nfs41_init_sequence(&args->seq_args, &res->seq_res, 1);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,375 | static void nfs4_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
{
if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
&data->args.seq_args,
&data->res.seq_res,
task))
return;
rpc_call_start(task);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
{
if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
&data->args.seq_args,
&data->res.seq_res,
task))
return;
rpc_call_start(task);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,376 | static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
{
struct nfs_server *server = NFS_SERVER(data->header->inode);
if (!nfs4_write_need_cache_consistency_data(data)) {
data->args.bitmask = NULL;
data->res.fattr = NULL;
} else
data->args.bitmask = server->cache_consistency_bitmask;
if (!data->write_done_cb)
data->write_done_cb = nfs4_write_done_cb;
data->res.server = server;
data->timestamp = jiffies;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE];
nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
{
struct nfs_server *server = NFS_SERVER(data->header->inode);
if (!nfs4_write_need_cache_consistency_data(data)) {
data->args.bitmask = NULL;
data->res.fattr = NULL;
} else
data->args.bitmask = server->cache_consistency_bitmask;
if (!data->write_done_cb)
data->write_done_cb = nfs4_write_done_cb;
data->res.server = server;
data->timestamp = jiffies;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE];
nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,377 | static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_read_data *data)
{
struct nfs_server *server = NFS_SERVER(data->header->inode);
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
rpc_restart_call_prepare(task);
return -EAGAIN;
}
__nfs4_read_done_cb(data);
if (task->tk_status > 0)
renew_lease(server, data->timestamp);
return 0;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_read_data *data)
{
struct nfs_server *server = NFS_SERVER(data->header->inode);
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
rpc_restart_call_prepare(task);
return -EAGAIN;
}
__nfs4_read_done_cb(data);
if (task->tk_status > 0)
renew_lease(server, data->timestamp);
return 0;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,378 | static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmode)
{
struct nfs_delegation *delegation;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
if (delegation == NULL || (delegation->type & fmode) == fmode) {
rcu_read_unlock();
return;
}
rcu_read_unlock();
nfs4_inode_return_delegation(inode);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmode)
{
struct nfs_delegation *delegation;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
if (delegation == NULL || (delegation->type & fmode) == fmode) {
rcu_read_unlock();
return;
}
rcu_read_unlock();
nfs4_inode_return_delegation(inode);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,379 | static int nfs4_wait_clnt_recover(struct nfs_client *clp)
{
int res;
might_sleep();
res = wait_on_bit(&clp->cl_state, NFS4CLNT_MANAGER_RUNNING,
nfs_wait_bit_killable, TASK_KILLABLE);
if (res)
return res;
if (clp->cl_cons_state < 0)
return clp->cl_cons_state;
return 0;
}
| DoS Overflow Mem. Corr. | 0 | static int nfs4_wait_clnt_recover(struct nfs_client *clp)
{
int res;
might_sleep();
res = wait_on_bit(&clp->cl_state, NFS4CLNT_MANAGER_RUNNING,
nfs_wait_bit_killable, TASK_KILLABLE);
if (res)
return res;
if (clp->cl_cons_state < 0)
return clp->cl_cons_state;
return 0;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,380 | static void nfs4_write_cached_acl(struct inode *inode, struct page **pages, size_t pgbase, size_t acl_len)
{
struct nfs4_cached_acl *acl;
size_t buflen = sizeof(*acl) + acl_len;
if (buflen <= PAGE_SIZE) {
acl = kmalloc(buflen, GFP_KERNEL);
if (acl == NULL)
goto out;
acl->cached = 1;
_copy_from_pages(acl->data, pages, pgbase, acl_len);
} else {
acl = kmalloc(sizeof(*acl), GFP_KERNEL);
if (acl == NULL)
goto out;
acl->cached = 0;
}
acl->len = acl_len;
out:
nfs4_set_cached_acl(inode, acl);
}
| DoS Overflow Mem. Corr. | 0 | static void nfs4_write_cached_acl(struct inode *inode, struct page **pages, size_t pgbase, size_t acl_len)
{
struct nfs4_cached_acl *acl;
size_t buflen = sizeof(*acl) + acl_len;
if (buflen <= PAGE_SIZE) {
acl = kmalloc(buflen, GFP_KERNEL);
if (acl == NULL)
goto out;
acl->cached = 1;
_copy_from_pages(acl->data, pages, pgbase, acl_len);
} else {
acl = kmalloc(sizeof(*acl), GFP_KERNEL);
if (acl == NULL)
goto out;
acl->cached = 0;
}
acl->len = acl_len;
out:
nfs4_set_cached_acl(inode, acl);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,381 | bool nfs4_write_need_cache_consistency_data(const struct nfs_write_data *data)
{
const struct nfs_pgio_header *hdr = data->header;
/* Don't request attributes for pNFS or O_DIRECT writes */
if (data->ds_clp != NULL || hdr->dreq != NULL)
return false;
/* Otherwise, request attributes if and only if we don't hold
* a delegation
*/
return nfs4_have_delegation(hdr->inode, FMODE_READ) == 0;
}
| DoS Overflow Mem. Corr. | 0 | bool nfs4_write_need_cache_consistency_data(const struct nfs_write_data *data)
{
const struct nfs_pgio_header *hdr = data->header;
/* Don't request attributes for pNFS or O_DIRECT writes */
if (data->ds_clp != NULL || hdr->dreq != NULL)
return false;
/* Otherwise, request attributes if and only if we don't hold
* a delegation
*/
return nfs4_have_delegation(hdr->inode, FMODE_READ) == 0;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,382 | static void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr)
{
fattr->valid |= NFS_ATTR_FATTR_TYPE | NFS_ATTR_FATTR_MODE |
NFS_ATTR_FATTR_NLINK | NFS_ATTR_FATTR_MOUNTPOINT;
fattr->mode = S_IFDIR | S_IRUGO | S_IXUGO;
fattr->nlink = 2;
}
| DoS Overflow Mem. Corr. | 0 | static void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr)
{
fattr->valid |= NFS_ATTR_FATTR_TYPE | NFS_ATTR_FATTR_MODE |
NFS_ATTR_FATTR_NLINK | NFS_ATTR_FATTR_MOUNTPOINT;
fattr->mode = S_IFDIR | S_IRUGO | S_IXUGO;
fattr->nlink = 2;
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,383 | static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
{
struct nfs_inode *nfsi = NFS_I(dir);
spin_lock(&dir->i_lock);
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
if (!cinfo->atomic || cinfo->before != dir->i_version)
nfs_force_lookup_revalidate(dir);
dir->i_version = cinfo->after;
spin_unlock(&dir->i_lock);
}
| DoS Overflow Mem. Corr. | 0 | static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
{
struct nfs_inode *nfsi = NFS_I(dir);
spin_lock(&dir->i_lock);
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
if (!cinfo->atomic || cinfo->before != dir->i_version)
nfs_force_lookup_revalidate(dir);
dir->i_version = cinfo->after;
spin_unlock(&dir->i_lock);
}
| @@ -3937,8 +3937,13 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
goto out_free;
}
nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
- if (buf)
+ if (buf) {
+ if (res.acl_len > buflen) {
+ ret = -ERANGE;
+ goto out_free;
+ }
_copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+ }
out_ok:
ret = res.acl_len;
out_free: | CWE-119 | null | null |
23,384 | __acquires(__ip_vs_svc_lock)
{
read_lock_bh(&__ip_vs_svc_lock);
return *pos ? ip_vs_info_array(seq, *pos - 1) : SEQ_START_TOKEN;
}
| Overflow +Priv | 0 | __acquires(__ip_vs_svc_lock)
{
read_lock_bh(&__ip_vs_svc_lock);
return *pos ? ip_vs_info_array(seq, *pos - 1) : SEQ_START_TOKEN;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,385 | static int __ip_vs_addr_is_local_v6(const struct in6_addr *addr)
{
struct rt6_info *rt;
struct flowi fl = {
.oif = 0,
.nl_u = {
.ip6_u = {
.daddr = *addr,
.saddr = { .s6_addr32 = {0, 0, 0, 0} }, } },
};
rt = (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl);
if (rt && rt->rt6i_dev && (rt->rt6i_dev->flags & IFF_LOOPBACK))
return 1;
return 0;
}
| Overflow +Priv | 0 | static int __ip_vs_addr_is_local_v6(const struct in6_addr *addr)
{
struct rt6_info *rt;
struct flowi fl = {
.oif = 0,
.nl_u = {
.ip6_u = {
.daddr = *addr,
.saddr = { .s6_addr32 = {0, 0, 0, 0} }, } },
};
rt = (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl);
if (rt && rt->rt6i_dev && (rt->rt6i_dev->flags & IFF_LOOPBACK))
return 1;
return 0;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,386 | static void __ip_vs_del_dest(struct ip_vs_dest *dest)
{
ip_vs_kill_estimator(&dest->stats);
/*
* Remove it from the d-linked list with the real services.
*/
write_lock_bh(&__ip_vs_rs_lock);
ip_vs_rs_unhash(dest);
write_unlock_bh(&__ip_vs_rs_lock);
/*
* Decrease the refcnt of the dest, and free the dest
* if nobody refers to it (refcnt=0). Otherwise, throw
* the destination into the trash.
*/
if (atomic_dec_and_test(&dest->refcnt)) {
ip_vs_dst_reset(dest);
/* simply decrease svc->refcnt here, let the caller check
and release the service if nobody refers to it.
Only user context can release destination and service,
and only one user context can update virtual service at a
time, so the operation here is OK */
atomic_dec(&dest->svc->refcnt);
kfree(dest);
} else {
IP_VS_DBG_BUF(3, "Moving dest %s:%u into trash, "
"dest->refcnt=%d\n",
IP_VS_DBG_ADDR(dest->af, &dest->addr),
ntohs(dest->port),
atomic_read(&dest->refcnt));
list_add(&dest->n_list, &ip_vs_dest_trash);
atomic_inc(&dest->refcnt);
}
}
| Overflow +Priv | 0 | static void __ip_vs_del_dest(struct ip_vs_dest *dest)
{
ip_vs_kill_estimator(&dest->stats);
/*
* Remove it from the d-linked list with the real services.
*/
write_lock_bh(&__ip_vs_rs_lock);
ip_vs_rs_unhash(dest);
write_unlock_bh(&__ip_vs_rs_lock);
/*
* Decrease the refcnt of the dest, and free the dest
* if nobody refers to it (refcnt=0). Otherwise, throw
* the destination into the trash.
*/
if (atomic_dec_and_test(&dest->refcnt)) {
ip_vs_dst_reset(dest);
/* simply decrease svc->refcnt here, let the caller check
and release the service if nobody refers to it.
Only user context can release destination and service,
and only one user context can update virtual service at a
time, so the operation here is OK */
atomic_dec(&dest->svc->refcnt);
kfree(dest);
} else {
IP_VS_DBG_BUF(3, "Moving dest %s:%u into trash, "
"dest->refcnt=%d\n",
IP_VS_DBG_ADDR(dest->af, &dest->addr),
ntohs(dest->port),
atomic_read(&dest->refcnt));
list_add(&dest->n_list, &ip_vs_dest_trash);
atomic_inc(&dest->refcnt);
}
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,387 | static void __ip_vs_del_service(struct ip_vs_service *svc)
{
struct ip_vs_dest *dest, *nxt;
struct ip_vs_scheduler *old_sched;
/* Count only IPv4 services for old get/setsockopt interface */
if (svc->af == AF_INET)
ip_vs_num_services--;
ip_vs_kill_estimator(&svc->stats);
/* Unbind scheduler */
old_sched = svc->scheduler;
ip_vs_unbind_scheduler(svc);
if (old_sched)
ip_vs_scheduler_put(old_sched);
/* Unbind app inc */
if (svc->inc) {
ip_vs_app_inc_put(svc->inc);
svc->inc = NULL;
}
/*
* Unlink the whole destination list
*/
list_for_each_entry_safe(dest, nxt, &svc->destinations, n_list) {
__ip_vs_unlink_dest(svc, dest, 0);
__ip_vs_del_dest(dest);
}
/*
* Update the virtual service counters
*/
if (svc->port == FTPPORT)
atomic_dec(&ip_vs_ftpsvc_counter);
else if (svc->port == 0)
atomic_dec(&ip_vs_nullsvc_counter);
/*
* Free the service if nobody refers to it
*/
if (atomic_read(&svc->refcnt) == 0)
kfree(svc);
/* decrease the module use count */
ip_vs_use_count_dec();
}
| Overflow +Priv | 0 | static void __ip_vs_del_service(struct ip_vs_service *svc)
{
struct ip_vs_dest *dest, *nxt;
struct ip_vs_scheduler *old_sched;
/* Count only IPv4 services for old get/setsockopt interface */
if (svc->af == AF_INET)
ip_vs_num_services--;
ip_vs_kill_estimator(&svc->stats);
/* Unbind scheduler */
old_sched = svc->scheduler;
ip_vs_unbind_scheduler(svc);
if (old_sched)
ip_vs_scheduler_put(old_sched);
/* Unbind app inc */
if (svc->inc) {
ip_vs_app_inc_put(svc->inc);
svc->inc = NULL;
}
/*
* Unlink the whole destination list
*/
list_for_each_entry_safe(dest, nxt, &svc->destinations, n_list) {
__ip_vs_unlink_dest(svc, dest, 0);
__ip_vs_del_dest(dest);
}
/*
* Update the virtual service counters
*/
if (svc->port == FTPPORT)
atomic_dec(&ip_vs_ftpsvc_counter);
else if (svc->port == 0)
atomic_dec(&ip_vs_nullsvc_counter);
/*
* Free the service if nobody refers to it
*/
if (atomic_read(&svc->refcnt) == 0)
kfree(svc);
/* decrease the module use count */
ip_vs_use_count_dec();
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,388 | __ip_vs_get_service_entries(const struct ip_vs_get_services *get,
struct ip_vs_get_services __user *uptr)
{
int idx, count=0;
struct ip_vs_service *svc;
struct ip_vs_service_entry entry;
int ret = 0;
for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
list_for_each_entry(svc, &ip_vs_svc_table[idx], s_list) {
/* Only expose IPv4 entries to old interface */
if (svc->af != AF_INET)
continue;
if (count >= get->num_services)
goto out;
memset(&entry, 0, sizeof(entry));
ip_vs_copy_service(&entry, svc);
if (copy_to_user(&uptr->entrytable[count],
&entry, sizeof(entry))) {
ret = -EFAULT;
goto out;
}
count++;
}
}
for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
list_for_each_entry(svc, &ip_vs_svc_fwm_table[idx], f_list) {
/* Only expose IPv4 entries to old interface */
if (svc->af != AF_INET)
continue;
if (count >= get->num_services)
goto out;
memset(&entry, 0, sizeof(entry));
ip_vs_copy_service(&entry, svc);
if (copy_to_user(&uptr->entrytable[count],
&entry, sizeof(entry))) {
ret = -EFAULT;
goto out;
}
count++;
}
}
out:
return ret;
}
| Overflow +Priv | 0 | __ip_vs_get_service_entries(const struct ip_vs_get_services *get,
struct ip_vs_get_services __user *uptr)
{
int idx, count=0;
struct ip_vs_service *svc;
struct ip_vs_service_entry entry;
int ret = 0;
for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
list_for_each_entry(svc, &ip_vs_svc_table[idx], s_list) {
/* Only expose IPv4 entries to old interface */
if (svc->af != AF_INET)
continue;
if (count >= get->num_services)
goto out;
memset(&entry, 0, sizeof(entry));
ip_vs_copy_service(&entry, svc);
if (copy_to_user(&uptr->entrytable[count],
&entry, sizeof(entry))) {
ret = -EFAULT;
goto out;
}
count++;
}
}
for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
list_for_each_entry(svc, &ip_vs_svc_fwm_table[idx], f_list) {
/* Only expose IPv4 entries to old interface */
if (svc->af != AF_INET)
continue;
if (count >= get->num_services)
goto out;
memset(&entry, 0, sizeof(entry));
ip_vs_copy_service(&entry, svc);
if (copy_to_user(&uptr->entrytable[count],
&entry, sizeof(entry))) {
ret = -EFAULT;
goto out;
}
count++;
}
}
out:
return ret;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,389 | __ip_vs_get_timeouts(struct ip_vs_timeout_user *u)
{
#ifdef CONFIG_IP_VS_PROTO_TCP
u->tcp_timeout =
ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_ESTABLISHED] / HZ;
u->tcp_fin_timeout =
ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_FIN_WAIT] / HZ;
#endif
#ifdef CONFIG_IP_VS_PROTO_UDP
u->udp_timeout =
ip_vs_protocol_udp.timeout_table[IP_VS_UDP_S_NORMAL] / HZ;
#endif
}
| Overflow +Priv | 0 | __ip_vs_get_timeouts(struct ip_vs_timeout_user *u)
{
#ifdef CONFIG_IP_VS_PROTO_TCP
u->tcp_timeout =
ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_ESTABLISHED] / HZ;
u->tcp_fin_timeout =
ip_vs_protocol_tcp.timeout_table[IP_VS_TCP_S_FIN_WAIT] / HZ;
#endif
#ifdef CONFIG_IP_VS_PROTO_UDP
u->udp_timeout =
ip_vs_protocol_udp.timeout_table[IP_VS_UDP_S_NORMAL] / HZ;
#endif
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,390 | __ip_vs_service_get(int af, __u16 protocol, const union nf_inet_addr *vaddr,
__be16 vport)
{
unsigned hash;
struct ip_vs_service *svc;
/* Check for "full" addressed entries */
hash = ip_vs_svc_hashkey(af, protocol, vaddr, vport);
list_for_each_entry(svc, &ip_vs_svc_table[hash], s_list){
if ((svc->af == af)
&& ip_vs_addr_equal(af, &svc->addr, vaddr)
&& (svc->port == vport)
&& (svc->protocol == protocol)) {
/* HIT */
atomic_inc(&svc->usecnt);
return svc;
}
}
return NULL;
}
| Overflow +Priv | 0 | __ip_vs_service_get(int af, __u16 protocol, const union nf_inet_addr *vaddr,
__be16 vport)
{
unsigned hash;
struct ip_vs_service *svc;
/* Check for "full" addressed entries */
hash = ip_vs_svc_hashkey(af, protocol, vaddr, vport);
list_for_each_entry(svc, &ip_vs_svc_table[hash], s_list){
if ((svc->af == af)
&& ip_vs_addr_equal(af, &svc->addr, vaddr)
&& (svc->port == vport)
&& (svc->protocol == protocol)) {
/* HIT */
atomic_inc(&svc->usecnt);
return svc;
}
}
return NULL;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,391 | __ip_vs_svc_fwm_get(int af, __u32 fwmark)
{
unsigned hash;
struct ip_vs_service *svc;
/* Check for fwmark addressed entries */
hash = ip_vs_svc_fwm_hashkey(fwmark);
list_for_each_entry(svc, &ip_vs_svc_fwm_table[hash], f_list) {
if (svc->fwmark == fwmark && svc->af == af) {
/* HIT */
atomic_inc(&svc->usecnt);
return svc;
}
}
return NULL;
}
| Overflow +Priv | 0 | __ip_vs_svc_fwm_get(int af, __u32 fwmark)
{
unsigned hash;
struct ip_vs_service *svc;
/* Check for fwmark addressed entries */
hash = ip_vs_svc_fwm_hashkey(fwmark);
list_for_each_entry(svc, &ip_vs_svc_fwm_table[hash], f_list) {
if (svc->fwmark == fwmark && svc->af == af) {
/* HIT */
atomic_inc(&svc->usecnt);
return svc;
}
}
return NULL;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,392 | __ip_vs_unbind_svc(struct ip_vs_dest *dest)
{
struct ip_vs_service *svc = dest->svc;
dest->svc = NULL;
if (atomic_dec_and_test(&svc->refcnt))
kfree(svc);
}
| Overflow +Priv | 0 | __ip_vs_unbind_svc(struct ip_vs_dest *dest)
{
struct ip_vs_service *svc = dest->svc;
dest->svc = NULL;
if (atomic_dec_and_test(&svc->refcnt))
kfree(svc);
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,393 | static void __ip_vs_unlink_dest(struct ip_vs_service *svc,
struct ip_vs_dest *dest,
int svcupd)
{
dest->flags &= ~IP_VS_DEST_F_AVAILABLE;
/*
* Remove it from the d-linked destination list.
*/
list_del(&dest->n_list);
svc->num_dests--;
/*
* Call the update_service function of its scheduler
*/
if (svcupd && svc->scheduler->update_service)
svc->scheduler->update_service(svc);
}
| Overflow +Priv | 0 | static void __ip_vs_unlink_dest(struct ip_vs_service *svc,
struct ip_vs_dest *dest,
int svcupd)
{
dest->flags &= ~IP_VS_DEST_F_AVAILABLE;
/*
* Remove it from the d-linked destination list.
*/
list_del(&dest->n_list);
svc->num_dests--;
/*
* Call the update_service function of its scheduler
*/
if (svcupd && svc->scheduler->update_service)
svc->scheduler->update_service(svc);
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,394 | __ip_vs_update_dest(struct ip_vs_service *svc,
struct ip_vs_dest *dest, struct ip_vs_dest_user_kern *udest)
{
int conn_flags;
/* set the weight and the flags */
atomic_set(&dest->weight, udest->weight);
conn_flags = udest->conn_flags | IP_VS_CONN_F_INACTIVE;
/* check if local node and update the flags */
#ifdef CONFIG_IP_VS_IPV6
if (svc->af == AF_INET6) {
if (__ip_vs_addr_is_local_v6(&udest->addr.in6)) {
conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
| IP_VS_CONN_F_LOCALNODE;
}
} else
#endif
if (inet_addr_type(&init_net, udest->addr.ip) == RTN_LOCAL) {
conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
| IP_VS_CONN_F_LOCALNODE;
}
/* set the IP_VS_CONN_F_NOOUTPUT flag if not masquerading/NAT */
if ((conn_flags & IP_VS_CONN_F_FWD_MASK) != 0) {
conn_flags |= IP_VS_CONN_F_NOOUTPUT;
} else {
/*
* Put the real service in ip_vs_rtable if not present.
* For now only for NAT!
*/
write_lock_bh(&__ip_vs_rs_lock);
ip_vs_rs_hash(dest);
write_unlock_bh(&__ip_vs_rs_lock);
}
atomic_set(&dest->conn_flags, conn_flags);
/* bind the service */
if (!dest->svc) {
__ip_vs_bind_svc(dest, svc);
} else {
if (dest->svc != svc) {
__ip_vs_unbind_svc(dest);
ip_vs_zero_stats(&dest->stats);
__ip_vs_bind_svc(dest, svc);
}
}
/* set the dest status flags */
dest->flags |= IP_VS_DEST_F_AVAILABLE;
if (udest->u_threshold == 0 || udest->u_threshold > dest->u_threshold)
dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
dest->u_threshold = udest->u_threshold;
dest->l_threshold = udest->l_threshold;
}
| Overflow +Priv | 0 | __ip_vs_update_dest(struct ip_vs_service *svc,
struct ip_vs_dest *dest, struct ip_vs_dest_user_kern *udest)
{
int conn_flags;
/* set the weight and the flags */
atomic_set(&dest->weight, udest->weight);
conn_flags = udest->conn_flags | IP_VS_CONN_F_INACTIVE;
/* check if local node and update the flags */
#ifdef CONFIG_IP_VS_IPV6
if (svc->af == AF_INET6) {
if (__ip_vs_addr_is_local_v6(&udest->addr.in6)) {
conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
| IP_VS_CONN_F_LOCALNODE;
}
} else
#endif
if (inet_addr_type(&init_net, udest->addr.ip) == RTN_LOCAL) {
conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
| IP_VS_CONN_F_LOCALNODE;
}
/* set the IP_VS_CONN_F_NOOUTPUT flag if not masquerading/NAT */
if ((conn_flags & IP_VS_CONN_F_FWD_MASK) != 0) {
conn_flags |= IP_VS_CONN_F_NOOUTPUT;
} else {
/*
* Put the real service in ip_vs_rtable if not present.
* For now only for NAT!
*/
write_lock_bh(&__ip_vs_rs_lock);
ip_vs_rs_hash(dest);
write_unlock_bh(&__ip_vs_rs_lock);
}
atomic_set(&dest->conn_flags, conn_flags);
/* bind the service */
if (!dest->svc) {
__ip_vs_bind_svc(dest, svc);
} else {
if (dest->svc != svc) {
__ip_vs_unbind_svc(dest);
ip_vs_zero_stats(&dest->stats);
__ip_vs_bind_svc(dest, svc);
}
}
/* set the dest status flags */
dest->flags |= IP_VS_DEST_F_AVAILABLE;
if (udest->u_threshold == 0 || udest->u_threshold > dest->u_threshold)
dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
dest->u_threshold = udest->u_threshold;
dest->l_threshold = udest->l_threshold;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,395 | __releases(__ip_vs_svc_lock)
{
read_unlock_bh(&__ip_vs_svc_lock);
}
| Overflow +Priv | 0 | __releases(__ip_vs_svc_lock)
{
read_unlock_bh(&__ip_vs_svc_lock);
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,396 | static void defense_work_handler(struct work_struct *work)
{
update_defense_level();
if (atomic_read(&ip_vs_dropentry))
ip_vs_random_dropentry();
schedule_delayed_work(&defense_work, DEFENSE_TIMER_PERIOD);
}
| Overflow +Priv | 0 | static void defense_work_handler(struct work_struct *work)
{
update_defense_level();
if (atomic_read(&ip_vs_dropentry))
ip_vs_random_dropentry();
schedule_delayed_work(&defense_work, DEFENSE_TIMER_PERIOD);
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,397 | ip_vs_add_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
{
struct ip_vs_dest *dest;
union nf_inet_addr daddr;
__be16 dport = udest->port;
int ret;
EnterFunction(2);
if (udest->weight < 0) {
pr_err("%s(): server weight less than zero\n", __func__);
return -ERANGE;
}
if (udest->l_threshold > udest->u_threshold) {
pr_err("%s(): lower threshold is higher than upper threshold\n",
__func__);
return -ERANGE;
}
ip_vs_addr_copy(svc->af, &daddr, &udest->addr);
/*
* Check if the dest already exists in the list
*/
dest = ip_vs_lookup_dest(svc, &daddr, dport);
if (dest != NULL) {
IP_VS_DBG(1, "%s(): dest already exists\n", __func__);
return -EEXIST;
}
/*
* Check if the dest already exists in the trash and
* is from the same service
*/
dest = ip_vs_trash_get_dest(svc, &daddr, dport);
if (dest != NULL) {
IP_VS_DBG_BUF(3, "Get destination %s:%u from trash, "
"dest->refcnt=%d, service %u/%s:%u\n",
IP_VS_DBG_ADDR(svc->af, &daddr), ntohs(dport),
atomic_read(&dest->refcnt),
dest->vfwmark,
IP_VS_DBG_ADDR(svc->af, &dest->vaddr),
ntohs(dest->vport));
__ip_vs_update_dest(svc, dest, udest);
/*
* Get the destination from the trash
*/
list_del(&dest->n_list);
ip_vs_new_estimator(&dest->stats);
write_lock_bh(&__ip_vs_svc_lock);
/*
* Wait until all other svc users go away.
*/
IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
list_add(&dest->n_list, &svc->destinations);
svc->num_dests++;
/* call the update_service function of its scheduler */
if (svc->scheduler->update_service)
svc->scheduler->update_service(svc);
write_unlock_bh(&__ip_vs_svc_lock);
return 0;
}
/*
* Allocate and initialize the dest structure
*/
ret = ip_vs_new_dest(svc, udest, &dest);
if (ret) {
return ret;
}
/*
* Add the dest entry into the list
*/
atomic_inc(&dest->refcnt);
write_lock_bh(&__ip_vs_svc_lock);
/*
* Wait until all other svc users go away.
*/
IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
list_add(&dest->n_list, &svc->destinations);
svc->num_dests++;
/* call the update_service function of its scheduler */
if (svc->scheduler->update_service)
svc->scheduler->update_service(svc);
write_unlock_bh(&__ip_vs_svc_lock);
LeaveFunction(2);
return 0;
}
| Overflow +Priv | 0 | ip_vs_add_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
{
struct ip_vs_dest *dest;
union nf_inet_addr daddr;
__be16 dport = udest->port;
int ret;
EnterFunction(2);
if (udest->weight < 0) {
pr_err("%s(): server weight less than zero\n", __func__);
return -ERANGE;
}
if (udest->l_threshold > udest->u_threshold) {
pr_err("%s(): lower threshold is higher than upper threshold\n",
__func__);
return -ERANGE;
}
ip_vs_addr_copy(svc->af, &daddr, &udest->addr);
/*
* Check if the dest already exists in the list
*/
dest = ip_vs_lookup_dest(svc, &daddr, dport);
if (dest != NULL) {
IP_VS_DBG(1, "%s(): dest already exists\n", __func__);
return -EEXIST;
}
/*
* Check if the dest already exists in the trash and
* is from the same service
*/
dest = ip_vs_trash_get_dest(svc, &daddr, dport);
if (dest != NULL) {
IP_VS_DBG_BUF(3, "Get destination %s:%u from trash, "
"dest->refcnt=%d, service %u/%s:%u\n",
IP_VS_DBG_ADDR(svc->af, &daddr), ntohs(dport),
atomic_read(&dest->refcnt),
dest->vfwmark,
IP_VS_DBG_ADDR(svc->af, &dest->vaddr),
ntohs(dest->vport));
__ip_vs_update_dest(svc, dest, udest);
/*
* Get the destination from the trash
*/
list_del(&dest->n_list);
ip_vs_new_estimator(&dest->stats);
write_lock_bh(&__ip_vs_svc_lock);
/*
* Wait until all other svc users go away.
*/
IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
list_add(&dest->n_list, &svc->destinations);
svc->num_dests++;
/* call the update_service function of its scheduler */
if (svc->scheduler->update_service)
svc->scheduler->update_service(svc);
write_unlock_bh(&__ip_vs_svc_lock);
return 0;
}
/*
* Allocate and initialize the dest structure
*/
ret = ip_vs_new_dest(svc, udest, &dest);
if (ret) {
return ret;
}
/*
* Add the dest entry into the list
*/
atomic_inc(&dest->refcnt);
write_lock_bh(&__ip_vs_svc_lock);
/*
* Wait until all other svc users go away.
*/
IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
list_add(&dest->n_list, &svc->destinations);
svc->num_dests++;
/* call the update_service function of its scheduler */
if (svc->scheduler->update_service)
svc->scheduler->update_service(svc);
write_unlock_bh(&__ip_vs_svc_lock);
LeaveFunction(2);
return 0;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,398 | ip_vs_add_service(struct ip_vs_service_user_kern *u,
struct ip_vs_service **svc_p)
{
int ret = 0;
struct ip_vs_scheduler *sched = NULL;
struct ip_vs_service *svc = NULL;
/* increase the module use count */
ip_vs_use_count_inc();
/* Lookup the scheduler by 'u->sched_name' */
sched = ip_vs_scheduler_get(u->sched_name);
if (sched == NULL) {
pr_info("Scheduler module ip_vs_%s not found\n", u->sched_name);
ret = -ENOENT;
goto out_mod_dec;
}
#ifdef CONFIG_IP_VS_IPV6
if (u->af == AF_INET6 && (u->netmask < 1 || u->netmask > 128)) {
ret = -EINVAL;
goto out_err;
}
#endif
svc = kzalloc(sizeof(struct ip_vs_service), GFP_ATOMIC);
if (svc == NULL) {
IP_VS_DBG(1, "%s(): no memory\n", __func__);
ret = -ENOMEM;
goto out_err;
}
/* I'm the first user of the service */
atomic_set(&svc->usecnt, 1);
atomic_set(&svc->refcnt, 0);
svc->af = u->af;
svc->protocol = u->protocol;
ip_vs_addr_copy(svc->af, &svc->addr, &u->addr);
svc->port = u->port;
svc->fwmark = u->fwmark;
svc->flags = u->flags;
svc->timeout = u->timeout * HZ;
svc->netmask = u->netmask;
INIT_LIST_HEAD(&svc->destinations);
rwlock_init(&svc->sched_lock);
spin_lock_init(&svc->stats.lock);
/* Bind the scheduler */
ret = ip_vs_bind_scheduler(svc, sched);
if (ret)
goto out_err;
sched = NULL;
/* Update the virtual service counters */
if (svc->port == FTPPORT)
atomic_inc(&ip_vs_ftpsvc_counter);
else if (svc->port == 0)
atomic_inc(&ip_vs_nullsvc_counter);
ip_vs_new_estimator(&svc->stats);
/* Count only IPv4 services for old get/setsockopt interface */
if (svc->af == AF_INET)
ip_vs_num_services++;
/* Hash the service into the service table */
write_lock_bh(&__ip_vs_svc_lock);
ip_vs_svc_hash(svc);
write_unlock_bh(&__ip_vs_svc_lock);
*svc_p = svc;
return 0;
out_err:
if (svc != NULL) {
if (svc->scheduler)
ip_vs_unbind_scheduler(svc);
if (svc->inc) {
local_bh_disable();
ip_vs_app_inc_put(svc->inc);
local_bh_enable();
}
kfree(svc);
}
ip_vs_scheduler_put(sched);
out_mod_dec:
/* decrease the module use count */
ip_vs_use_count_dec();
return ret;
}
| Overflow +Priv | 0 | ip_vs_add_service(struct ip_vs_service_user_kern *u,
struct ip_vs_service **svc_p)
{
int ret = 0;
struct ip_vs_scheduler *sched = NULL;
struct ip_vs_service *svc = NULL;
/* increase the module use count */
ip_vs_use_count_inc();
/* Lookup the scheduler by 'u->sched_name' */
sched = ip_vs_scheduler_get(u->sched_name);
if (sched == NULL) {
pr_info("Scheduler module ip_vs_%s not found\n", u->sched_name);
ret = -ENOENT;
goto out_mod_dec;
}
#ifdef CONFIG_IP_VS_IPV6
if (u->af == AF_INET6 && (u->netmask < 1 || u->netmask > 128)) {
ret = -EINVAL;
goto out_err;
}
#endif
svc = kzalloc(sizeof(struct ip_vs_service), GFP_ATOMIC);
if (svc == NULL) {
IP_VS_DBG(1, "%s(): no memory\n", __func__);
ret = -ENOMEM;
goto out_err;
}
/* I'm the first user of the service */
atomic_set(&svc->usecnt, 1);
atomic_set(&svc->refcnt, 0);
svc->af = u->af;
svc->protocol = u->protocol;
ip_vs_addr_copy(svc->af, &svc->addr, &u->addr);
svc->port = u->port;
svc->fwmark = u->fwmark;
svc->flags = u->flags;
svc->timeout = u->timeout * HZ;
svc->netmask = u->netmask;
INIT_LIST_HEAD(&svc->destinations);
rwlock_init(&svc->sched_lock);
spin_lock_init(&svc->stats.lock);
/* Bind the scheduler */
ret = ip_vs_bind_scheduler(svc, sched);
if (ret)
goto out_err;
sched = NULL;
/* Update the virtual service counters */
if (svc->port == FTPPORT)
atomic_inc(&ip_vs_ftpsvc_counter);
else if (svc->port == 0)
atomic_inc(&ip_vs_nullsvc_counter);
ip_vs_new_estimator(&svc->stats);
/* Count only IPv4 services for old get/setsockopt interface */
if (svc->af == AF_INET)
ip_vs_num_services++;
/* Hash the service into the service table */
write_lock_bh(&__ip_vs_svc_lock);
ip_vs_svc_hash(svc);
write_unlock_bh(&__ip_vs_svc_lock);
*svc_p = svc;
return 0;
out_err:
if (svc != NULL) {
if (svc->scheduler)
ip_vs_unbind_scheduler(svc);
if (svc->inc) {
local_bh_disable();
ip_vs_app_inc_put(svc->inc);
local_bh_enable();
}
kfree(svc);
}
ip_vs_scheduler_put(sched);
out_mod_dec:
/* decrease the module use count */
ip_vs_use_count_dec();
return ret;
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
23,399 | void ip_vs_control_cleanup(void)
{
EnterFunction(2);
ip_vs_trash_cleanup();
cancel_rearming_delayed_work(&defense_work);
cancel_work_sync(&defense_work.work);
ip_vs_kill_estimator(&ip_vs_stats);
unregister_sysctl_table(sysctl_header);
proc_net_remove(&init_net, "ip_vs_stats");
proc_net_remove(&init_net, "ip_vs");
ip_vs_genl_unregister();
nf_unregister_sockopt(&ip_vs_sockopts);
LeaveFunction(2);
}
| Overflow +Priv | 0 | void ip_vs_control_cleanup(void)
{
EnterFunction(2);
ip_vs_trash_cleanup();
cancel_rearming_delayed_work(&defense_work);
cancel_work_sync(&defense_work.work);
ip_vs_kill_estimator(&ip_vs_stats);
unregister_sysctl_table(sysctl_header);
proc_net_remove(&init_net, "ip_vs_stats");
proc_net_remove(&init_net, "ip_vs");
ip_vs_genl_unregister();
nf_unregister_sockopt(&ip_vs_sockopts);
LeaveFunction(2);
}
| @@ -2077,6 +2077,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
+ return -EINVAL;
+ if (len < 0 || len > MAX_ARG_LEN)
+ return -EINVAL;
if (len != set_arglen[SET_CMDID(cmd)]) {
pr_err("set_ctl: len %u != %u\n",
len, set_arglen[SET_CMDID(cmd)]);
@@ -2352,17 +2356,25 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
unsigned char arg[128];
int ret = 0;
+ unsigned int copylen;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
+ if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
+ return -EINVAL;
+
if (*len < get_arglen[GET_CMDID(cmd)]) {
pr_err("get_ctl: len %u < %u\n",
*len, get_arglen[GET_CMDID(cmd)]);
return -EINVAL;
}
- if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
+ copylen = get_arglen[GET_CMDID(cmd)];
+ if (copylen > 128)
+ return -EINVAL;
+
+ if (copy_from_user(arg, user, copylen) != 0)
return -EFAULT;
if (mutex_lock_interruptible(&__ip_vs_mutex)) | CWE-119 | null | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.