idx int64 | func_before string | Vulnerability Classification string | vul int64 | func_after string | patch string | CWE ID string | lines_before string | lines_after string |
|---|---|---|---|---|---|---|---|---|
22,200 | int rds_ib_send_grab_credits(struct rds_ib_connection *ic,
u32 wanted, u32 *adv_credits, int need_posted, int max_posted)
{
unsigned int avail, posted, got = 0, advertise;
long oldval, newval;
*adv_credits = 0;
if (!ic->i_flowctl)
return wanted;
try_again:
advertise = 0;
oldval = newval = atomic_read(&ic->i_credits);
posted = IB_GET_POST_CREDITS(oldval);
avail = IB_GET_SEND_CREDITS(oldval);
rdsdebug("rds_ib_send_grab_credits(%u): credits=%u posted=%u\n",
wanted, avail, posted);
/* The last credit must be used to send a credit update. */
if (avail && !posted)
avail--;
if (avail < wanted) {
struct rds_connection *conn = ic->i_cm_id->context;
/* Oops, there aren't that many credits left! */
set_bit(RDS_LL_SEND_FULL, &conn->c_flags);
got = avail;
} else {
/* Sometimes you get what you want, lalala. */
got = wanted;
}
newval -= IB_SET_SEND_CREDITS(got);
/*
* If need_posted is non-zero, then the caller wants
* the posted regardless of whether any send credits are
* available.
*/
if (posted && (got || need_posted)) {
advertise = min_t(unsigned int, posted, max_posted);
newval -= IB_SET_POST_CREDITS(advertise);
}
/* Finally bill everything */
if (atomic_cmpxchg(&ic->i_credits, oldval, newval) != oldval)
goto try_again;
*adv_credits = advertise;
return got;
}
| DoS | 0 | int rds_ib_send_grab_credits(struct rds_ib_connection *ic,
u32 wanted, u32 *adv_credits, int need_posted, int max_posted)
{
unsigned int avail, posted, got = 0, advertise;
long oldval, newval;
*adv_credits = 0;
if (!ic->i_flowctl)
return wanted;
try_again:
advertise = 0;
oldval = newval = atomic_read(&ic->i_credits);
posted = IB_GET_POST_CREDITS(oldval);
avail = IB_GET_SEND_CREDITS(oldval);
rdsdebug("rds_ib_send_grab_credits(%u): credits=%u posted=%u\n",
wanted, avail, posted);
/* The last credit must be used to send a credit update. */
if (avail && !posted)
avail--;
if (avail < wanted) {
struct rds_connection *conn = ic->i_cm_id->context;
/* Oops, there aren't that many credits left! */
set_bit(RDS_LL_SEND_FULL, &conn->c_flags);
got = avail;
} else {
/* Sometimes you get what you want, lalala. */
got = wanted;
}
newval -= IB_SET_SEND_CREDITS(got);
/*
* If need_posted is non-zero, then the caller wants
* the posted regardless of whether any send credits are
* available.
*/
if (posted && (got || need_posted)) {
advertise = min_t(unsigned int, posted, max_posted);
newval -= IB_SET_POST_CREDITS(advertise);
}
/* Finally bill everything */
if (atomic_cmpxchg(&ic->i_credits, oldval, newval) != oldval)
goto try_again;
*adv_credits = advertise;
return got;
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,201 | static void rds_ib_send_unmap_atomic(struct rds_ib_connection *ic,
struct rm_atomic_op *op,
int wc_status)
{
/* unmap atomic recvbuf */
if (op->op_mapped) {
ib_dma_unmap_sg(ic->i_cm_id->device, op->op_sg, 1,
DMA_FROM_DEVICE);
op->op_mapped = 0;
}
rds_ib_send_complete(container_of(op, struct rds_message, atomic),
wc_status, rds_atomic_send_complete);
if (op->op_type == RDS_ATOMIC_TYPE_CSWP)
rds_ib_stats_inc(s_ib_atomic_cswp);
else
rds_ib_stats_inc(s_ib_atomic_fadd);
}
| DoS | 0 | static void rds_ib_send_unmap_atomic(struct rds_ib_connection *ic,
struct rm_atomic_op *op,
int wc_status)
{
/* unmap atomic recvbuf */
if (op->op_mapped) {
ib_dma_unmap_sg(ic->i_cm_id->device, op->op_sg, 1,
DMA_FROM_DEVICE);
op->op_mapped = 0;
}
rds_ib_send_complete(container_of(op, struct rds_message, atomic),
wc_status, rds_atomic_send_complete);
if (op->op_type == RDS_ATOMIC_TYPE_CSWP)
rds_ib_stats_inc(s_ib_atomic_cswp);
else
rds_ib_stats_inc(s_ib_atomic_fadd);
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,202 | static struct rds_message *rds_ib_send_unmap_op(struct rds_ib_connection *ic,
struct rds_ib_send_work *send,
int wc_status)
{
struct rds_message *rm = NULL;
/* In the error case, wc.opcode sometimes contains garbage */
switch (send->s_wr.opcode) {
case IB_WR_SEND:
if (send->s_op) {
rm = container_of(send->s_op, struct rds_message, data);
rds_ib_send_unmap_data(ic, send->s_op, wc_status);
}
break;
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_READ:
if (send->s_op) {
rm = container_of(send->s_op, struct rds_message, rdma);
rds_ib_send_unmap_rdma(ic, send->s_op, wc_status);
}
break;
case IB_WR_ATOMIC_FETCH_AND_ADD:
case IB_WR_ATOMIC_CMP_AND_SWP:
if (send->s_op) {
rm = container_of(send->s_op, struct rds_message, atomic);
rds_ib_send_unmap_atomic(ic, send->s_op, wc_status);
}
break;
default:
if (printk_ratelimit())
printk(KERN_NOTICE
"RDS/IB: %s: unexpected opcode 0x%x in WR!\n",
__func__, send->s_wr.opcode);
break;
}
send->s_wr.opcode = 0xdead;
return rm;
}
| DoS | 0 | static struct rds_message *rds_ib_send_unmap_op(struct rds_ib_connection *ic,
struct rds_ib_send_work *send,
int wc_status)
{
struct rds_message *rm = NULL;
/* In the error case, wc.opcode sometimes contains garbage */
switch (send->s_wr.opcode) {
case IB_WR_SEND:
if (send->s_op) {
rm = container_of(send->s_op, struct rds_message, data);
rds_ib_send_unmap_data(ic, send->s_op, wc_status);
}
break;
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_READ:
if (send->s_op) {
rm = container_of(send->s_op, struct rds_message, rdma);
rds_ib_send_unmap_rdma(ic, send->s_op, wc_status);
}
break;
case IB_WR_ATOMIC_FETCH_AND_ADD:
case IB_WR_ATOMIC_CMP_AND_SWP:
if (send->s_op) {
rm = container_of(send->s_op, struct rds_message, atomic);
rds_ib_send_unmap_atomic(ic, send->s_op, wc_status);
}
break;
default:
if (printk_ratelimit())
printk(KERN_NOTICE
"RDS/IB: %s: unexpected opcode 0x%x in WR!\n",
__func__, send->s_wr.opcode);
break;
}
send->s_wr.opcode = 0xdead;
return rm;
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,203 | static void rds_ib_send_unmap_rdma(struct rds_ib_connection *ic,
struct rm_rdma_op *op,
int wc_status)
{
if (op->op_mapped) {
ib_dma_unmap_sg(ic->i_cm_id->device,
op->op_sg, op->op_nents,
op->op_write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
op->op_mapped = 0;
}
/* If the user asked for a completion notification on this
* message, we can implement three different semantics:
* 1. Notify when we received the ACK on the RDS message
* that was queued with the RDMA. This provides reliable
* notification of RDMA status at the expense of a one-way
* packet delay.
* 2. Notify when the IB stack gives us the completion event for
* the RDMA operation.
* 3. Notify when the IB stack gives us the completion event for
* the accompanying RDS messages.
* Here, we implement approach #3. To implement approach #2,
* we would need to take an event for the rdma WR. To implement #1,
* don't call rds_rdma_send_complete at all, and fall back to the notify
* handling in the ACK processing code.
*
* Note: There's no need to explicitly sync any RDMA buffers using
* ib_dma_sync_sg_for_cpu - the completion for the RDMA
* operation itself unmapped the RDMA buffers, which takes care
* of synching.
*/
rds_ib_send_complete(container_of(op, struct rds_message, rdma),
wc_status, rds_rdma_send_complete);
if (op->op_write)
rds_stats_add(s_send_rdma_bytes, op->op_bytes);
else
rds_stats_add(s_recv_rdma_bytes, op->op_bytes);
}
| DoS | 0 | static void rds_ib_send_unmap_rdma(struct rds_ib_connection *ic,
struct rm_rdma_op *op,
int wc_status)
{
if (op->op_mapped) {
ib_dma_unmap_sg(ic->i_cm_id->device,
op->op_sg, op->op_nents,
op->op_write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
op->op_mapped = 0;
}
/* If the user asked for a completion notification on this
* message, we can implement three different semantics:
* 1. Notify when we received the ACK on the RDS message
* that was queued with the RDMA. This provides reliable
* notification of RDMA status at the expense of a one-way
* packet delay.
* 2. Notify when the IB stack gives us the completion event for
* the RDMA operation.
* 3. Notify when the IB stack gives us the completion event for
* the accompanying RDS messages.
* Here, we implement approach #3. To implement approach #2,
* we would need to take an event for the rdma WR. To implement #1,
* don't call rds_rdma_send_complete at all, and fall back to the notify
* handling in the ACK processing code.
*
* Note: There's no need to explicitly sync any RDMA buffers using
* ib_dma_sync_sg_for_cpu - the completion for the RDMA
* operation itself unmapped the RDMA buffers, which takes care
* of synching.
*/
rds_ib_send_complete(container_of(op, struct rds_message, rdma),
wc_status, rds_rdma_send_complete);
if (op->op_write)
rds_stats_add(s_send_rdma_bytes, op->op_bytes);
else
rds_stats_add(s_recv_rdma_bytes, op->op_bytes);
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,204 | static inline int rds_ib_set_wr_signal_state(struct rds_ib_connection *ic,
struct rds_ib_send_work *send,
bool notify)
{
/*
* We want to delay signaling completions just enough to get
* the batching benefits but not so much that we create dead time
* on the wire.
*/
if (ic->i_unsignaled_wrs-- == 0 || notify) {
ic->i_unsignaled_wrs = rds_ib_sysctl_max_unsig_wrs;
send->s_wr.send_flags |= IB_SEND_SIGNALED;
return 1;
}
return 0;
}
| DoS | 0 | static inline int rds_ib_set_wr_signal_state(struct rds_ib_connection *ic,
struct rds_ib_send_work *send,
bool notify)
{
/*
* We want to delay signaling completions just enough to get
* the batching benefits but not so much that we create dead time
* on the wire.
*/
if (ic->i_unsignaled_wrs-- == 0 || notify) {
ic->i_unsignaled_wrs = rds_ib_sysctl_max_unsig_wrs;
send->s_wr.send_flags |= IB_SEND_SIGNALED;
return 1;
}
return 0;
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,205 | static void rds_ib_sub_signaled(struct rds_ib_connection *ic, int nr)
{
if ((atomic_sub_return(nr, &ic->i_signaled_sends) == 0) &&
waitqueue_active(&rds_ib_ring_empty_wait))
wake_up(&rds_ib_ring_empty_wait);
BUG_ON(atomic_read(&ic->i_signaled_sends) < 0);
}
| DoS | 0 | static void rds_ib_sub_signaled(struct rds_ib_connection *ic, int nr)
{
if ((atomic_sub_return(nr, &ic->i_signaled_sends) == 0) &&
waitqueue_active(&rds_ib_ring_empty_wait))
wake_up(&rds_ib_ring_empty_wait);
BUG_ON(atomic_read(&ic->i_signaled_sends) < 0);
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,206 | char *rds_ib_wc_status_str(enum ib_wc_status status)
{
return rds_str_array(rds_ib_wc_status_strings,
ARRAY_SIZE(rds_ib_wc_status_strings), status);
}
| DoS | 0 | char *rds_ib_wc_status_str(enum ib_wc_status status)
{
return rds_str_array(rds_ib_wc_status_strings,
ARRAY_SIZE(rds_ib_wc_status_strings), status);
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,207 | int rds_ib_xmit_atomic(struct rds_connection *conn, struct rm_atomic_op *op)
{
struct rds_ib_connection *ic = conn->c_transport_data;
struct rds_ib_send_work *send = NULL;
struct ib_send_wr *failed_wr;
struct rds_ib_device *rds_ibdev;
u32 pos;
u32 work_alloc;
int ret;
int nr_sig = 0;
rds_ibdev = ib_get_client_data(ic->i_cm_id->device, &rds_ib_client);
work_alloc = rds_ib_ring_alloc(&ic->i_send_ring, 1, &pos);
if (work_alloc != 1) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_stats_inc(s_ib_tx_ring_full);
ret = -ENOMEM;
goto out;
}
/* address of send request in ring */
send = &ic->i_sends[pos];
send->s_queued = jiffies;
if (op->op_type == RDS_ATOMIC_TYPE_CSWP) {
send->s_wr.opcode = IB_WR_MASKED_ATOMIC_CMP_AND_SWP;
send->s_wr.wr.atomic.compare_add = op->op_m_cswp.compare;
send->s_wr.wr.atomic.swap = op->op_m_cswp.swap;
send->s_wr.wr.atomic.compare_add_mask = op->op_m_cswp.compare_mask;
send->s_wr.wr.atomic.swap_mask = op->op_m_cswp.swap_mask;
} else { /* FADD */
send->s_wr.opcode = IB_WR_MASKED_ATOMIC_FETCH_AND_ADD;
send->s_wr.wr.atomic.compare_add = op->op_m_fadd.add;
send->s_wr.wr.atomic.swap = 0;
send->s_wr.wr.atomic.compare_add_mask = op->op_m_fadd.nocarry_mask;
send->s_wr.wr.atomic.swap_mask = 0;
}
nr_sig = rds_ib_set_wr_signal_state(ic, send, op->op_notify);
send->s_wr.num_sge = 1;
send->s_wr.next = NULL;
send->s_wr.wr.atomic.remote_addr = op->op_remote_addr;
send->s_wr.wr.atomic.rkey = op->op_rkey;
send->s_op = op;
rds_message_addref(container_of(send->s_op, struct rds_message, atomic));
/* map 8 byte retval buffer to the device */
ret = ib_dma_map_sg(ic->i_cm_id->device, op->op_sg, 1, DMA_FROM_DEVICE);
rdsdebug("ic %p mapping atomic op %p. mapped %d pg\n", ic, op, ret);
if (ret != 1) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_stats_inc(s_ib_tx_sg_mapping_failure);
ret = -ENOMEM; /* XXX ? */
goto out;
}
/* Convert our struct scatterlist to struct ib_sge */
send->s_sge[0].addr = ib_sg_dma_address(ic->i_cm_id->device, op->op_sg);
send->s_sge[0].length = ib_sg_dma_len(ic->i_cm_id->device, op->op_sg);
send->s_sge[0].lkey = ic->i_mr->lkey;
rdsdebug("rva %Lx rpa %Lx len %u\n", op->op_remote_addr,
send->s_sge[0].addr, send->s_sge[0].length);
if (nr_sig)
atomic_add(nr_sig, &ic->i_signaled_sends);
failed_wr = &send->s_wr;
ret = ib_post_send(ic->i_cm_id->qp, &send->s_wr, &failed_wr);
rdsdebug("ic %p send %p (wr %p) ret %d wr %p\n", ic,
send, &send->s_wr, ret, failed_wr);
BUG_ON(failed_wr != &send->s_wr);
if (ret) {
printk(KERN_WARNING "RDS/IB: atomic ib_post_send to %pI4 "
"returned %d\n", &conn->c_faddr, ret);
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_sub_signaled(ic, nr_sig);
goto out;
}
if (unlikely(failed_wr != &send->s_wr)) {
printk(KERN_WARNING "RDS/IB: atomic ib_post_send() rc=%d, but failed_wqe updated!\n", ret);
BUG_ON(failed_wr != &send->s_wr);
}
out:
return ret;
}
| DoS | 0 | int rds_ib_xmit_atomic(struct rds_connection *conn, struct rm_atomic_op *op)
{
struct rds_ib_connection *ic = conn->c_transport_data;
struct rds_ib_send_work *send = NULL;
struct ib_send_wr *failed_wr;
struct rds_ib_device *rds_ibdev;
u32 pos;
u32 work_alloc;
int ret;
int nr_sig = 0;
rds_ibdev = ib_get_client_data(ic->i_cm_id->device, &rds_ib_client);
work_alloc = rds_ib_ring_alloc(&ic->i_send_ring, 1, &pos);
if (work_alloc != 1) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_stats_inc(s_ib_tx_ring_full);
ret = -ENOMEM;
goto out;
}
/* address of send request in ring */
send = &ic->i_sends[pos];
send->s_queued = jiffies;
if (op->op_type == RDS_ATOMIC_TYPE_CSWP) {
send->s_wr.opcode = IB_WR_MASKED_ATOMIC_CMP_AND_SWP;
send->s_wr.wr.atomic.compare_add = op->op_m_cswp.compare;
send->s_wr.wr.atomic.swap = op->op_m_cswp.swap;
send->s_wr.wr.atomic.compare_add_mask = op->op_m_cswp.compare_mask;
send->s_wr.wr.atomic.swap_mask = op->op_m_cswp.swap_mask;
} else { /* FADD */
send->s_wr.opcode = IB_WR_MASKED_ATOMIC_FETCH_AND_ADD;
send->s_wr.wr.atomic.compare_add = op->op_m_fadd.add;
send->s_wr.wr.atomic.swap = 0;
send->s_wr.wr.atomic.compare_add_mask = op->op_m_fadd.nocarry_mask;
send->s_wr.wr.atomic.swap_mask = 0;
}
nr_sig = rds_ib_set_wr_signal_state(ic, send, op->op_notify);
send->s_wr.num_sge = 1;
send->s_wr.next = NULL;
send->s_wr.wr.atomic.remote_addr = op->op_remote_addr;
send->s_wr.wr.atomic.rkey = op->op_rkey;
send->s_op = op;
rds_message_addref(container_of(send->s_op, struct rds_message, atomic));
/* map 8 byte retval buffer to the device */
ret = ib_dma_map_sg(ic->i_cm_id->device, op->op_sg, 1, DMA_FROM_DEVICE);
rdsdebug("ic %p mapping atomic op %p. mapped %d pg\n", ic, op, ret);
if (ret != 1) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_stats_inc(s_ib_tx_sg_mapping_failure);
ret = -ENOMEM; /* XXX ? */
goto out;
}
/* Convert our struct scatterlist to struct ib_sge */
send->s_sge[0].addr = ib_sg_dma_address(ic->i_cm_id->device, op->op_sg);
send->s_sge[0].length = ib_sg_dma_len(ic->i_cm_id->device, op->op_sg);
send->s_sge[0].lkey = ic->i_mr->lkey;
rdsdebug("rva %Lx rpa %Lx len %u\n", op->op_remote_addr,
send->s_sge[0].addr, send->s_sge[0].length);
if (nr_sig)
atomic_add(nr_sig, &ic->i_signaled_sends);
failed_wr = &send->s_wr;
ret = ib_post_send(ic->i_cm_id->qp, &send->s_wr, &failed_wr);
rdsdebug("ic %p send %p (wr %p) ret %d wr %p\n", ic,
send, &send->s_wr, ret, failed_wr);
BUG_ON(failed_wr != &send->s_wr);
if (ret) {
printk(KERN_WARNING "RDS/IB: atomic ib_post_send to %pI4 "
"returned %d\n", &conn->c_faddr, ret);
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_sub_signaled(ic, nr_sig);
goto out;
}
if (unlikely(failed_wr != &send->s_wr)) {
printk(KERN_WARNING "RDS/IB: atomic ib_post_send() rc=%d, but failed_wqe updated!\n", ret);
BUG_ON(failed_wr != &send->s_wr);
}
out:
return ret;
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,208 | void rds_ib_xmit_complete(struct rds_connection *conn)
{
struct rds_ib_connection *ic = conn->c_transport_data;
/* We may have a pending ACK or window update we were unable
* to send previously (due to flow control). Try again. */
rds_ib_attempt_ack(ic);
}
| DoS | 0 | void rds_ib_xmit_complete(struct rds_connection *conn)
{
struct rds_ib_connection *ic = conn->c_transport_data;
/* We may have a pending ACK or window update we were unable
* to send previously (due to flow control). Try again. */
rds_ib_attempt_ack(ic);
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,209 | int rds_ib_xmit_rdma(struct rds_connection *conn, struct rm_rdma_op *op)
{
struct rds_ib_connection *ic = conn->c_transport_data;
struct rds_ib_send_work *send = NULL;
struct rds_ib_send_work *first;
struct rds_ib_send_work *prev;
struct ib_send_wr *failed_wr;
struct scatterlist *scat;
unsigned long len;
u64 remote_addr = op->op_remote_addr;
u32 max_sge = ic->rds_ibdev->max_sge;
u32 pos;
u32 work_alloc;
u32 i;
u32 j;
int sent;
int ret;
int num_sge;
int nr_sig = 0;
/* map the op the first time we see it */
if (!op->op_mapped) {
op->op_count = ib_dma_map_sg(ic->i_cm_id->device,
op->op_sg, op->op_nents, (op->op_write) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
rdsdebug("ic %p mapping op %p: %d\n", ic, op, op->op_count);
if (op->op_count == 0) {
rds_ib_stats_inc(s_ib_tx_sg_mapping_failure);
ret = -ENOMEM; /* XXX ? */
goto out;
}
op->op_mapped = 1;
}
/*
* Instead of knowing how to return a partial rdma read/write we insist that there
* be enough work requests to send the entire message.
*/
i = ceil(op->op_count, max_sge);
work_alloc = rds_ib_ring_alloc(&ic->i_send_ring, i, &pos);
if (work_alloc != i) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_stats_inc(s_ib_tx_ring_full);
ret = -ENOMEM;
goto out;
}
send = &ic->i_sends[pos];
first = send;
prev = NULL;
scat = &op->op_sg[0];
sent = 0;
num_sge = op->op_count;
for (i = 0; i < work_alloc && scat != &op->op_sg[op->op_count]; i++) {
send->s_wr.send_flags = 0;
send->s_queued = jiffies;
send->s_op = NULL;
nr_sig += rds_ib_set_wr_signal_state(ic, send, op->op_notify);
send->s_wr.opcode = op->op_write ? IB_WR_RDMA_WRITE : IB_WR_RDMA_READ;
send->s_wr.wr.rdma.remote_addr = remote_addr;
send->s_wr.wr.rdma.rkey = op->op_rkey;
if (num_sge > max_sge) {
send->s_wr.num_sge = max_sge;
num_sge -= max_sge;
} else {
send->s_wr.num_sge = num_sge;
}
send->s_wr.next = NULL;
if (prev)
prev->s_wr.next = &send->s_wr;
for (j = 0; j < send->s_wr.num_sge && scat != &op->op_sg[op->op_count]; j++) {
len = ib_sg_dma_len(ic->i_cm_id->device, scat);
send->s_sge[j].addr =
ib_sg_dma_address(ic->i_cm_id->device, scat);
send->s_sge[j].length = len;
send->s_sge[j].lkey = ic->i_mr->lkey;
sent += len;
rdsdebug("ic %p sent %d remote_addr %llu\n", ic, sent, remote_addr);
remote_addr += len;
scat++;
}
rdsdebug("send %p wr %p num_sge %u next %p\n", send,
&send->s_wr, send->s_wr.num_sge, send->s_wr.next);
prev = send;
if (++send == &ic->i_sends[ic->i_send_ring.w_nr])
send = ic->i_sends;
}
/* give a reference to the last op */
if (scat == &op->op_sg[op->op_count]) {
prev->s_op = op;
rds_message_addref(container_of(op, struct rds_message, rdma));
}
if (i < work_alloc) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc - i);
work_alloc = i;
}
if (nr_sig)
atomic_add(nr_sig, &ic->i_signaled_sends);
failed_wr = &first->s_wr;
ret = ib_post_send(ic->i_cm_id->qp, &first->s_wr, &failed_wr);
rdsdebug("ic %p first %p (wr %p) ret %d wr %p\n", ic,
first, &first->s_wr, ret, failed_wr);
BUG_ON(failed_wr != &first->s_wr);
if (ret) {
printk(KERN_WARNING "RDS/IB: rdma ib_post_send to %pI4 "
"returned %d\n", &conn->c_faddr, ret);
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_sub_signaled(ic, nr_sig);
goto out;
}
if (unlikely(failed_wr != &first->s_wr)) {
printk(KERN_WARNING "RDS/IB: ib_post_send() rc=%d, but failed_wqe updated!\n", ret);
BUG_ON(failed_wr != &first->s_wr);
}
out:
return ret;
}
| DoS | 0 | int rds_ib_xmit_rdma(struct rds_connection *conn, struct rm_rdma_op *op)
{
struct rds_ib_connection *ic = conn->c_transport_data;
struct rds_ib_send_work *send = NULL;
struct rds_ib_send_work *first;
struct rds_ib_send_work *prev;
struct ib_send_wr *failed_wr;
struct scatterlist *scat;
unsigned long len;
u64 remote_addr = op->op_remote_addr;
u32 max_sge = ic->rds_ibdev->max_sge;
u32 pos;
u32 work_alloc;
u32 i;
u32 j;
int sent;
int ret;
int num_sge;
int nr_sig = 0;
/* map the op the first time we see it */
if (!op->op_mapped) {
op->op_count = ib_dma_map_sg(ic->i_cm_id->device,
op->op_sg, op->op_nents, (op->op_write) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
rdsdebug("ic %p mapping op %p: %d\n", ic, op, op->op_count);
if (op->op_count == 0) {
rds_ib_stats_inc(s_ib_tx_sg_mapping_failure);
ret = -ENOMEM; /* XXX ? */
goto out;
}
op->op_mapped = 1;
}
/*
* Instead of knowing how to return a partial rdma read/write we insist that there
* be enough work requests to send the entire message.
*/
i = ceil(op->op_count, max_sge);
work_alloc = rds_ib_ring_alloc(&ic->i_send_ring, i, &pos);
if (work_alloc != i) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_stats_inc(s_ib_tx_ring_full);
ret = -ENOMEM;
goto out;
}
send = &ic->i_sends[pos];
first = send;
prev = NULL;
scat = &op->op_sg[0];
sent = 0;
num_sge = op->op_count;
for (i = 0; i < work_alloc && scat != &op->op_sg[op->op_count]; i++) {
send->s_wr.send_flags = 0;
send->s_queued = jiffies;
send->s_op = NULL;
nr_sig += rds_ib_set_wr_signal_state(ic, send, op->op_notify);
send->s_wr.opcode = op->op_write ? IB_WR_RDMA_WRITE : IB_WR_RDMA_READ;
send->s_wr.wr.rdma.remote_addr = remote_addr;
send->s_wr.wr.rdma.rkey = op->op_rkey;
if (num_sge > max_sge) {
send->s_wr.num_sge = max_sge;
num_sge -= max_sge;
} else {
send->s_wr.num_sge = num_sge;
}
send->s_wr.next = NULL;
if (prev)
prev->s_wr.next = &send->s_wr;
for (j = 0; j < send->s_wr.num_sge && scat != &op->op_sg[op->op_count]; j++) {
len = ib_sg_dma_len(ic->i_cm_id->device, scat);
send->s_sge[j].addr =
ib_sg_dma_address(ic->i_cm_id->device, scat);
send->s_sge[j].length = len;
send->s_sge[j].lkey = ic->i_mr->lkey;
sent += len;
rdsdebug("ic %p sent %d remote_addr %llu\n", ic, sent, remote_addr);
remote_addr += len;
scat++;
}
rdsdebug("send %p wr %p num_sge %u next %p\n", send,
&send->s_wr, send->s_wr.num_sge, send->s_wr.next);
prev = send;
if (++send == &ic->i_sends[ic->i_send_ring.w_nr])
send = ic->i_sends;
}
/* give a reference to the last op */
if (scat == &op->op_sg[op->op_count]) {
prev->s_op = op;
rds_message_addref(container_of(op, struct rds_message, rdma));
}
if (i < work_alloc) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc - i);
work_alloc = i;
}
if (nr_sig)
atomic_add(nr_sig, &ic->i_signaled_sends);
failed_wr = &first->s_wr;
ret = ib_post_send(ic->i_cm_id->qp, &first->s_wr, &failed_wr);
rdsdebug("ic %p first %p (wr %p) ret %d wr %p\n", ic,
first, &first->s_wr, ret, failed_wr);
BUG_ON(failed_wr != &first->s_wr);
if (ret) {
printk(KERN_WARNING "RDS/IB: rdma ib_post_send to %pI4 "
"returned %d\n", &conn->c_faddr, ret);
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
rds_ib_sub_signaled(ic, nr_sig);
goto out;
}
if (unlikely(failed_wr != &first->s_wr)) {
printk(KERN_WARNING "RDS/IB: ib_post_send() rc=%d, but failed_wqe updated!\n", ret);
BUG_ON(failed_wr != &first->s_wr);
}
out:
return ret;
}
| @@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */ | null | null | null |
22,210 | static int rds_loop_conn_alloc(struct rds_connection *conn, gfp_t gfp)
{
struct rds_loop_connection *lc;
unsigned long flags;
lc = kzalloc(sizeof(struct rds_loop_connection), GFP_KERNEL);
if (!lc)
return -ENOMEM;
INIT_LIST_HEAD(&lc->loop_node);
lc->conn = conn;
conn->c_transport_data = lc;
spin_lock_irqsave(&loop_conns_lock, flags);
list_add_tail(&lc->loop_node, &loop_conns);
spin_unlock_irqrestore(&loop_conns_lock, flags);
return 0;
}
| DoS | 0 | static int rds_loop_conn_alloc(struct rds_connection *conn, gfp_t gfp)
{
struct rds_loop_connection *lc;
unsigned long flags;
lc = kzalloc(sizeof(struct rds_loop_connection), GFP_KERNEL);
if (!lc)
return -ENOMEM;
INIT_LIST_HEAD(&lc->loop_node);
lc->conn = conn;
conn->c_transport_data = lc;
spin_lock_irqsave(&loop_conns_lock, flags);
list_add_tail(&lc->loop_node, &loop_conns);
spin_unlock_irqrestore(&loop_conns_lock, flags);
return 0;
}
| @@ -61,10 +61,15 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
unsigned int hdr_off, unsigned int sg,
unsigned int off)
{
+ struct scatterlist *sgp = &rm->data.op_sg[sg];
+ int ret = sizeof(struct rds_header) +
+ be32_to_cpu(rm->m_inc.i_hdr.h_len);
+
/* Do not send cong updates to loopback */
if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, sgp->length - conn->c_xmit_data_off);
+ goto out;
}
BUG_ON(hdr_off || sg || off);
@@ -80,8 +85,8 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
NULL);
rds_inc_put(&rm->m_inc);
-
- return sizeof(struct rds_header) + be32_to_cpu(rm->m_inc.i_hdr.h_len);
+out:
+ return ret;
}
/* | null | null | null |
22,211 | static void rds_loop_conn_free(void *arg)
{
struct rds_loop_connection *lc = arg;
unsigned long flags;
rdsdebug("lc %p\n", lc);
spin_lock_irqsave(&loop_conns_lock, flags);
list_del(&lc->loop_node);
spin_unlock_irqrestore(&loop_conns_lock, flags);
kfree(lc);
}
| DoS | 0 | static void rds_loop_conn_free(void *arg)
{
struct rds_loop_connection *lc = arg;
unsigned long flags;
rdsdebug("lc %p\n", lc);
spin_lock_irqsave(&loop_conns_lock, flags);
list_del(&lc->loop_node);
spin_unlock_irqrestore(&loop_conns_lock, flags);
kfree(lc);
}
| @@ -61,10 +61,15 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
unsigned int hdr_off, unsigned int sg,
unsigned int off)
{
+ struct scatterlist *sgp = &rm->data.op_sg[sg];
+ int ret = sizeof(struct rds_header) +
+ be32_to_cpu(rm->m_inc.i_hdr.h_len);
+
/* Do not send cong updates to loopback */
if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, sgp->length - conn->c_xmit_data_off);
+ goto out;
}
BUG_ON(hdr_off || sg || off);
@@ -80,8 +85,8 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
NULL);
rds_inc_put(&rm->m_inc);
-
- return sizeof(struct rds_header) + be32_to_cpu(rm->m_inc.i_hdr.h_len);
+out:
+ return ret;
}
/* | null | null | null |
22,212 | static void rds_loop_conn_shutdown(struct rds_connection *conn)
{
}
| DoS | 0 | static void rds_loop_conn_shutdown(struct rds_connection *conn)
{
}
| @@ -61,10 +61,15 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
unsigned int hdr_off, unsigned int sg,
unsigned int off)
{
+ struct scatterlist *sgp = &rm->data.op_sg[sg];
+ int ret = sizeof(struct rds_header) +
+ be32_to_cpu(rm->m_inc.i_hdr.h_len);
+
/* Do not send cong updates to loopback */
if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, sgp->length - conn->c_xmit_data_off);
+ goto out;
}
BUG_ON(hdr_off || sg || off);
@@ -80,8 +85,8 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
NULL);
rds_inc_put(&rm->m_inc);
-
- return sizeof(struct rds_header) + be32_to_cpu(rm->m_inc.i_hdr.h_len);
+out:
+ return ret;
}
/* | null | null | null |
22,213 | void rds_loop_exit(void)
{
struct rds_loop_connection *lc, *_lc;
LIST_HEAD(tmp_list);
/* avoid calling conn_destroy with irqs off */
spin_lock_irq(&loop_conns_lock);
list_splice(&loop_conns, &tmp_list);
INIT_LIST_HEAD(&loop_conns);
spin_unlock_irq(&loop_conns_lock);
list_for_each_entry_safe(lc, _lc, &tmp_list, loop_node) {
WARN_ON(lc->conn->c_passive);
rds_conn_destroy(lc->conn);
}
}
| DoS | 0 | void rds_loop_exit(void)
{
struct rds_loop_connection *lc, *_lc;
LIST_HEAD(tmp_list);
/* avoid calling conn_destroy with irqs off */
spin_lock_irq(&loop_conns_lock);
list_splice(&loop_conns, &tmp_list);
INIT_LIST_HEAD(&loop_conns);
spin_unlock_irq(&loop_conns_lock);
list_for_each_entry_safe(lc, _lc, &tmp_list, loop_node) {
WARN_ON(lc->conn->c_passive);
rds_conn_destroy(lc->conn);
}
}
| @@ -61,10 +61,15 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
unsigned int hdr_off, unsigned int sg,
unsigned int off)
{
+ struct scatterlist *sgp = &rm->data.op_sg[sg];
+ int ret = sizeof(struct rds_header) +
+ be32_to_cpu(rm->m_inc.i_hdr.h_len);
+
/* Do not send cong updates to loopback */
if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, sgp->length - conn->c_xmit_data_off);
+ goto out;
}
BUG_ON(hdr_off || sg || off);
@@ -80,8 +85,8 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
NULL);
rds_inc_put(&rm->m_inc);
-
- return sizeof(struct rds_header) + be32_to_cpu(rm->m_inc.i_hdr.h_len);
+out:
+ return ret;
}
/* | null | null | null |
22,214 | static void rds_loop_inc_free(struct rds_incoming *inc)
{
struct rds_message *rm = container_of(inc, struct rds_message, m_inc);
rds_message_put(rm);
}
| DoS | 0 | static void rds_loop_inc_free(struct rds_incoming *inc)
{
struct rds_message *rm = container_of(inc, struct rds_message, m_inc);
rds_message_put(rm);
}
| @@ -61,10 +61,15 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
unsigned int hdr_off, unsigned int sg,
unsigned int off)
{
+ struct scatterlist *sgp = &rm->data.op_sg[sg];
+ int ret = sizeof(struct rds_header) +
+ be32_to_cpu(rm->m_inc.i_hdr.h_len);
+
/* Do not send cong updates to loopback */
if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, sgp->length - conn->c_xmit_data_off);
+ goto out;
}
BUG_ON(hdr_off || sg || off);
@@ -80,8 +85,8 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
NULL);
rds_inc_put(&rm->m_inc);
-
- return sizeof(struct rds_header) + be32_to_cpu(rm->m_inc.i_hdr.h_len);
+out:
+ return ret;
}
/* | null | null | null |
22,215 | static int rds_loop_recv(struct rds_connection *conn)
{
return 0;
}
| DoS | 0 | static int rds_loop_recv(struct rds_connection *conn)
{
return 0;
}
| @@ -61,10 +61,15 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
unsigned int hdr_off, unsigned int sg,
unsigned int off)
{
+ struct scatterlist *sgp = &rm->data.op_sg[sg];
+ int ret = sizeof(struct rds_header) +
+ be32_to_cpu(rm->m_inc.i_hdr.h_len);
+
/* Do not send cong updates to loopback */
if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, sgp->length - conn->c_xmit_data_off);
+ goto out;
}
BUG_ON(hdr_off || sg || off);
@@ -80,8 +85,8 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
NULL);
rds_inc_put(&rm->m_inc);
-
- return sizeof(struct rds_header) + be32_to_cpu(rm->m_inc.i_hdr.h_len);
+out:
+ return ret;
}
/* | null | null | null |
22,216 | static inline int __br_ip4_hash(struct net_bridge_mdb_htable *mdb, __be32 ip)
{
return jhash_1word(mdb->secret, (__force u32)ip) & (mdb->max - 1);
}
| DoS Mem. Corr. | 0 | static inline int __br_ip4_hash(struct net_bridge_mdb_htable *mdb, __be32 ip)
{
return jhash_1word(mdb->secret, (__force u32)ip) & (mdb->max - 1);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,217 | static inline int __br_ip6_hash(struct net_bridge_mdb_htable *mdb,
const struct in6_addr *ip)
{
return jhash2((__force u32 *)ip->s6_addr32, 4, mdb->secret) & (mdb->max - 1);
}
| DoS Mem. Corr. | 0 | static inline int __br_ip6_hash(struct net_bridge_mdb_htable *mdb,
const struct in6_addr *ip)
{
return jhash2((__force u32 *)ip->s6_addr32, 4, mdb->secret) & (mdb->max - 1);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,218 | static void __br_multicast_enable_port(struct net_bridge_port *port)
{
port->multicast_startup_queries_sent = 0;
if (try_to_del_timer_sync(&port->multicast_query_timer) >= 0 ||
del_timer(&port->multicast_query_timer))
mod_timer(&port->multicast_query_timer, jiffies);
}
| DoS Mem. Corr. | 0 | static void __br_multicast_enable_port(struct net_bridge_port *port)
{
port->multicast_startup_queries_sent = 0;
if (try_to_del_timer_sync(&port->multicast_query_timer) >= 0 ||
del_timer(&port->multicast_query_timer))
mod_timer(&port->multicast_query_timer, jiffies);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,219 | static void __br_multicast_send_query(struct net_bridge *br,
struct net_bridge_port *port,
struct br_ip *ip)
{
struct sk_buff *skb;
skb = br_multicast_alloc_query(br, ip);
if (!skb)
return;
if (port) {
__skb_push(skb, sizeof(struct ethhdr));
skb->dev = port->dev;
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
dev_queue_xmit);
} else
netif_rx(skb);
}
| DoS Mem. Corr. | 0 | static void __br_multicast_send_query(struct net_bridge *br,
struct net_bridge_port *port,
struct br_ip *ip)
{
struct sk_buff *skb;
skb = br_multicast_alloc_query(br, ip);
if (!skb)
return;
if (port) {
__skb_push(skb, sizeof(struct ethhdr));
skb->dev = port->dev;
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
dev_queue_xmit);
} else
netif_rx(skb);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,220 | static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br,
__be32 group)
{
struct sk_buff *skb;
struct igmphdr *ih;
struct ethhdr *eth;
struct iphdr *iph;
skb = netdev_alloc_skb_ip_align(br->dev, sizeof(*eth) + sizeof(*iph) +
sizeof(*ih) + 4);
if (!skb)
goto out;
skb->protocol = htons(ETH_P_IP);
skb_reset_mac_header(skb);
eth = eth_hdr(skb);
memcpy(eth->h_source, br->dev->dev_addr, 6);
eth->h_dest[0] = 1;
eth->h_dest[1] = 0;
eth->h_dest[2] = 0x5e;
eth->h_dest[3] = 0;
eth->h_dest[4] = 0;
eth->h_dest[5] = 1;
eth->h_proto = htons(ETH_P_IP);
skb_put(skb, sizeof(*eth));
skb_set_network_header(skb, skb->len);
iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = 6;
iph->tos = 0xc0;
iph->tot_len = htons(sizeof(*iph) + sizeof(*ih) + 4);
iph->id = 0;
iph->frag_off = htons(IP_DF);
iph->ttl = 1;
iph->protocol = IPPROTO_IGMP;
iph->saddr = 0;
iph->daddr = htonl(INADDR_ALLHOSTS_GROUP);
((u8 *)&iph[1])[0] = IPOPT_RA;
((u8 *)&iph[1])[1] = 4;
((u8 *)&iph[1])[2] = 0;
((u8 *)&iph[1])[3] = 0;
ip_send_check(iph);
skb_put(skb, 24);
skb_set_transport_header(skb, skb->len);
ih = igmp_hdr(skb);
ih->type = IGMP_HOST_MEMBERSHIP_QUERY;
ih->code = (group ? br->multicast_last_member_interval :
br->multicast_query_response_interval) /
(HZ / IGMP_TIMER_SCALE);
ih->group = group;
ih->csum = 0;
ih->csum = ip_compute_csum((void *)ih, sizeof(struct igmphdr));
skb_put(skb, sizeof(*ih));
__skb_pull(skb, sizeof(*eth));
out:
return skb;
}
| DoS Mem. Corr. | 0 | static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br,
__be32 group)
{
struct sk_buff *skb;
struct igmphdr *ih;
struct ethhdr *eth;
struct iphdr *iph;
skb = netdev_alloc_skb_ip_align(br->dev, sizeof(*eth) + sizeof(*iph) +
sizeof(*ih) + 4);
if (!skb)
goto out;
skb->protocol = htons(ETH_P_IP);
skb_reset_mac_header(skb);
eth = eth_hdr(skb);
memcpy(eth->h_source, br->dev->dev_addr, 6);
eth->h_dest[0] = 1;
eth->h_dest[1] = 0;
eth->h_dest[2] = 0x5e;
eth->h_dest[3] = 0;
eth->h_dest[4] = 0;
eth->h_dest[5] = 1;
eth->h_proto = htons(ETH_P_IP);
skb_put(skb, sizeof(*eth));
skb_set_network_header(skb, skb->len);
iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = 6;
iph->tos = 0xc0;
iph->tot_len = htons(sizeof(*iph) + sizeof(*ih) + 4);
iph->id = 0;
iph->frag_off = htons(IP_DF);
iph->ttl = 1;
iph->protocol = IPPROTO_IGMP;
iph->saddr = 0;
iph->daddr = htonl(INADDR_ALLHOSTS_GROUP);
((u8 *)&iph[1])[0] = IPOPT_RA;
((u8 *)&iph[1])[1] = 4;
((u8 *)&iph[1])[2] = 0;
((u8 *)&iph[1])[3] = 0;
ip_send_check(iph);
skb_put(skb, 24);
skb_set_transport_header(skb, skb->len);
ih = igmp_hdr(skb);
ih->type = IGMP_HOST_MEMBERSHIP_QUERY;
ih->code = (group ? br->multicast_last_member_interval :
br->multicast_query_response_interval) /
(HZ / IGMP_TIMER_SCALE);
ih->group = group;
ih->csum = 0;
ih->csum = ip_compute_csum((void *)ih, sizeof(struct igmphdr));
skb_put(skb, sizeof(*ih));
__skb_pull(skb, sizeof(*eth));
out:
return skb;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,221 | static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct igmpv3_report *ih;
struct igmpv3_grec *grec;
int i;
int len;
int num;
int type;
int err = 0;
__be32 group;
if (!pskb_may_pull(skb, sizeof(*ih)))
return -EINVAL;
ih = igmpv3_report_hdr(skb);
num = ntohs(ih->ngrec);
len = sizeof(*ih);
for (i = 0; i < num; i++) {
len += sizeof(*grec);
if (!pskb_may_pull(skb, len))
return -EINVAL;
grec = (void *)(skb->data + len - sizeof(*grec));
group = grec->grec_mca;
type = grec->grec_type;
len += ntohs(grec->grec_nsrcs) * 4;
if (!pskb_may_pull(skb, len))
return -EINVAL;
/* We treat this as an IGMPv2 report for now. */
switch (type) {
case IGMPV3_MODE_IS_INCLUDE:
case IGMPV3_MODE_IS_EXCLUDE:
case IGMPV3_CHANGE_TO_INCLUDE:
case IGMPV3_CHANGE_TO_EXCLUDE:
case IGMPV3_ALLOW_NEW_SOURCES:
case IGMPV3_BLOCK_OLD_SOURCES:
break;
default:
continue;
}
err = br_ip4_multicast_add_group(br, port, group);
if (err)
break;
}
return err;
}
| DoS Mem. Corr. | 0 | static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct igmpv3_report *ih;
struct igmpv3_grec *grec;
int i;
int len;
int num;
int type;
int err = 0;
__be32 group;
if (!pskb_may_pull(skb, sizeof(*ih)))
return -EINVAL;
ih = igmpv3_report_hdr(skb);
num = ntohs(ih->ngrec);
len = sizeof(*ih);
for (i = 0; i < num; i++) {
len += sizeof(*grec);
if (!pskb_may_pull(skb, len))
return -EINVAL;
grec = (void *)(skb->data + len - sizeof(*grec));
group = grec->grec_mca;
type = grec->grec_type;
len += ntohs(grec->grec_nsrcs) * 4;
if (!pskb_may_pull(skb, len))
return -EINVAL;
/* We treat this as an IGMPv2 report for now. */
switch (type) {
case IGMPV3_MODE_IS_INCLUDE:
case IGMPV3_MODE_IS_EXCLUDE:
case IGMPV3_CHANGE_TO_INCLUDE:
case IGMPV3_CHANGE_TO_EXCLUDE:
case IGMPV3_ALLOW_NEW_SOURCES:
case IGMPV3_BLOCK_OLD_SOURCES:
break;
default:
continue;
}
err = br_ip4_multicast_add_group(br, port, group);
if (err)
break;
}
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,222 | static void br_ip4_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
__be32 group)
{
struct br_ip br_group;
if (ipv4_is_local_multicast(group))
return;
br_group.u.ip4 = group;
br_group.proto = htons(ETH_P_IP);
br_multicast_leave_group(br, port, &br_group);
}
| DoS Mem. Corr. | 0 | static void br_ip4_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
__be32 group)
{
struct br_ip br_group;
if (ipv4_is_local_multicast(group))
return;
br_group.u.ip4 = group;
br_group.proto = htons(ETH_P_IP);
br_multicast_leave_group(br, port, &br_group);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,223 | static int br_ip4_multicast_query(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct iphdr *iph = ip_hdr(skb);
struct igmphdr *ih = igmp_hdr(skb);
struct net_bridge_mdb_entry *mp;
struct igmpv3_query *ih3;
struct net_bridge_port_group *p;
struct net_bridge_port_group __rcu **pp;
unsigned long max_delay;
unsigned long now = jiffies;
__be32 group;
int err = 0;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
(port && port->state == BR_STATE_DISABLED))
goto out;
br_multicast_query_received(br, port, !!iph->saddr);
group = ih->group;
if (skb->len == sizeof(*ih)) {
max_delay = ih->code * (HZ / IGMP_TIMER_SCALE);
if (!max_delay) {
max_delay = 10 * HZ;
group = 0;
}
} else {
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query))) {
err = -EINVAL;
goto out;
}
ih3 = igmpv3_query_hdr(skb);
if (ih3->nsrcs)
goto out;
max_delay = ih3->code ?
IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE) : 1;
}
if (!group)
goto out;
mp = br_mdb_ip4_get(mlock_dereference(br->mdb, br), group);
if (!mp)
goto out;
max_delay *= br->multicast_last_member_count;
if (!hlist_unhashed(&mp->mglist) &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, now + max_delay) :
try_to_del_timer_sync(&mp->timer) >= 0))
mod_timer(&mp->timer, now + max_delay);
for (pp = &mp->ports;
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
try_to_del_timer_sync(&p->timer) >= 0)
mod_timer(&mp->timer, now + max_delay);
}
out:
spin_unlock(&br->multicast_lock);
return err;
}
| DoS Mem. Corr. | 0 | static int br_ip4_multicast_query(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct iphdr *iph = ip_hdr(skb);
struct igmphdr *ih = igmp_hdr(skb);
struct net_bridge_mdb_entry *mp;
struct igmpv3_query *ih3;
struct net_bridge_port_group *p;
struct net_bridge_port_group __rcu **pp;
unsigned long max_delay;
unsigned long now = jiffies;
__be32 group;
int err = 0;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
(port && port->state == BR_STATE_DISABLED))
goto out;
br_multicast_query_received(br, port, !!iph->saddr);
group = ih->group;
if (skb->len == sizeof(*ih)) {
max_delay = ih->code * (HZ / IGMP_TIMER_SCALE);
if (!max_delay) {
max_delay = 10 * HZ;
group = 0;
}
} else {
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query))) {
err = -EINVAL;
goto out;
}
ih3 = igmpv3_query_hdr(skb);
if (ih3->nsrcs)
goto out;
max_delay = ih3->code ?
IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE) : 1;
}
if (!group)
goto out;
mp = br_mdb_ip4_get(mlock_dereference(br->mdb, br), group);
if (!mp)
goto out;
max_delay *= br->multicast_last_member_count;
if (!hlist_unhashed(&mp->mglist) &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, now + max_delay) :
try_to_del_timer_sync(&mp->timer) >= 0))
mod_timer(&mp->timer, now + max_delay);
for (pp = &mp->ports;
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
try_to_del_timer_sync(&p->timer) >= 0)
mod_timer(&mp->timer, now + max_delay);
}
out:
spin_unlock(&br->multicast_lock);
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,224 | static int br_ip6_multicast_add_group(struct net_bridge *br,
struct net_bridge_port *port,
const struct in6_addr *group)
{
struct br_ip br_group;
if (ipv6_is_local_multicast(group))
return 0;
ipv6_addr_copy(&br_group.u.ip6, group);
br_group.proto = htons(ETH_P_IP);
return br_multicast_add_group(br, port, &br_group);
}
| DoS Mem. Corr. | 0 | static int br_ip6_multicast_add_group(struct net_bridge *br,
struct net_bridge_port *port,
const struct in6_addr *group)
{
struct br_ip br_group;
if (ipv6_is_local_multicast(group))
return 0;
ipv6_addr_copy(&br_group.u.ip6, group);
br_group.proto = htons(ETH_P_IP);
return br_multicast_add_group(br, port, &br_group);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,225 | static void br_ip6_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
const struct in6_addr *group)
{
struct br_ip br_group;
if (ipv6_is_local_multicast(group))
return;
ipv6_addr_copy(&br_group.u.ip6, group);
br_group.proto = htons(ETH_P_IPV6);
br_multicast_leave_group(br, port, &br_group);
}
| DoS Mem. Corr. | 0 | static void br_ip6_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
const struct in6_addr *group)
{
struct br_ip br_group;
if (ipv6_is_local_multicast(group))
return;
ipv6_addr_copy(&br_group.u.ip6, group);
br_group.proto = htons(ETH_P_IPV6);
br_multicast_leave_group(br, port, &br_group);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,226 | static int br_ip6_multicast_mld2_report(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct icmp6hdr *icmp6h;
struct mld2_grec *grec;
int i;
int len;
int num;
int err = 0;
if (!pskb_may_pull(skb, sizeof(*icmp6h)))
return -EINVAL;
icmp6h = icmp6_hdr(skb);
num = ntohs(icmp6h->icmp6_dataun.un_data16[1]);
len = sizeof(*icmp6h);
for (i = 0; i < num; i++) {
__be16 *nsrcs, _nsrcs;
nsrcs = skb_header_pointer(skb,
len + offsetof(struct mld2_grec,
grec_mca),
sizeof(_nsrcs), &_nsrcs);
if (!nsrcs)
return -EINVAL;
if (!pskb_may_pull(skb,
len + sizeof(*grec) +
sizeof(struct in6_addr) * (*nsrcs)))
return -EINVAL;
grec = (struct mld2_grec *)(skb->data + len);
len += sizeof(*grec) + sizeof(struct in6_addr) * (*nsrcs);
/* We treat these as MLDv1 reports for now. */
switch (grec->grec_type) {
case MLD2_MODE_IS_INCLUDE:
case MLD2_MODE_IS_EXCLUDE:
case MLD2_CHANGE_TO_INCLUDE:
case MLD2_CHANGE_TO_EXCLUDE:
case MLD2_ALLOW_NEW_SOURCES:
case MLD2_BLOCK_OLD_SOURCES:
break;
default:
continue;
}
err = br_ip6_multicast_add_group(br, port, &grec->grec_mca);
if (!err)
break;
}
return err;
}
| DoS Mem. Corr. | 0 | static int br_ip6_multicast_mld2_report(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct icmp6hdr *icmp6h;
struct mld2_grec *grec;
int i;
int len;
int num;
int err = 0;
if (!pskb_may_pull(skb, sizeof(*icmp6h)))
return -EINVAL;
icmp6h = icmp6_hdr(skb);
num = ntohs(icmp6h->icmp6_dataun.un_data16[1]);
len = sizeof(*icmp6h);
for (i = 0; i < num; i++) {
__be16 *nsrcs, _nsrcs;
nsrcs = skb_header_pointer(skb,
len + offsetof(struct mld2_grec,
grec_mca),
sizeof(_nsrcs), &_nsrcs);
if (!nsrcs)
return -EINVAL;
if (!pskb_may_pull(skb,
len + sizeof(*grec) +
sizeof(struct in6_addr) * (*nsrcs)))
return -EINVAL;
grec = (struct mld2_grec *)(skb->data + len);
len += sizeof(*grec) + sizeof(struct in6_addr) * (*nsrcs);
/* We treat these as MLDv1 reports for now. */
switch (grec->grec_type) {
case MLD2_MODE_IS_INCLUDE:
case MLD2_MODE_IS_EXCLUDE:
case MLD2_CHANGE_TO_INCLUDE:
case MLD2_CHANGE_TO_EXCLUDE:
case MLD2_ALLOW_NEW_SOURCES:
case MLD2_BLOCK_OLD_SOURCES:
break;
default:
continue;
}
err = br_ip6_multicast_add_group(br, port, &grec->grec_mca);
if (!err)
break;
}
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,227 | static int br_ip6_multicast_query(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct ipv6hdr *ip6h = ipv6_hdr(skb);
struct mld_msg *mld = (struct mld_msg *) icmp6_hdr(skb);
struct net_bridge_mdb_entry *mp;
struct mld2_query *mld2q;
struct net_bridge_port_group *p;
struct net_bridge_port_group __rcu **pp;
unsigned long max_delay;
unsigned long now = jiffies;
struct in6_addr *group = NULL;
int err = 0;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
(port && port->state == BR_STATE_DISABLED))
goto out;
br_multicast_query_received(br, port, !ipv6_addr_any(&ip6h->saddr));
if (skb->len == sizeof(*mld)) {
if (!pskb_may_pull(skb, sizeof(*mld))) {
err = -EINVAL;
goto out;
}
mld = (struct mld_msg *) icmp6_hdr(skb);
max_delay = msecs_to_jiffies(htons(mld->mld_maxdelay));
if (max_delay)
group = &mld->mld_mca;
} else if (skb->len >= sizeof(*mld2q)) {
if (!pskb_may_pull(skb, sizeof(*mld2q))) {
err = -EINVAL;
goto out;
}
mld2q = (struct mld2_query *)icmp6_hdr(skb);
if (!mld2q->mld2q_nsrcs)
group = &mld2q->mld2q_mca;
max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(mld2q->mld2q_mrc) : 1;
}
if (!group)
goto out;
mp = br_mdb_ip6_get(mlock_dereference(br->mdb, br), group);
if (!mp)
goto out;
max_delay *= br->multicast_last_member_count;
if (!hlist_unhashed(&mp->mglist) &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, now + max_delay) :
try_to_del_timer_sync(&mp->timer) >= 0))
mod_timer(&mp->timer, now + max_delay);
for (pp = &mp->ports;
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
try_to_del_timer_sync(&p->timer) >= 0)
mod_timer(&mp->timer, now + max_delay);
}
out:
spin_unlock(&br->multicast_lock);
return err;
}
| DoS Mem. Corr. | 0 | static int br_ip6_multicast_query(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct ipv6hdr *ip6h = ipv6_hdr(skb);
struct mld_msg *mld = (struct mld_msg *) icmp6_hdr(skb);
struct net_bridge_mdb_entry *mp;
struct mld2_query *mld2q;
struct net_bridge_port_group *p;
struct net_bridge_port_group __rcu **pp;
unsigned long max_delay;
unsigned long now = jiffies;
struct in6_addr *group = NULL;
int err = 0;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
(port && port->state == BR_STATE_DISABLED))
goto out;
br_multicast_query_received(br, port, !ipv6_addr_any(&ip6h->saddr));
if (skb->len == sizeof(*mld)) {
if (!pskb_may_pull(skb, sizeof(*mld))) {
err = -EINVAL;
goto out;
}
mld = (struct mld_msg *) icmp6_hdr(skb);
max_delay = msecs_to_jiffies(htons(mld->mld_maxdelay));
if (max_delay)
group = &mld->mld_mca;
} else if (skb->len >= sizeof(*mld2q)) {
if (!pskb_may_pull(skb, sizeof(*mld2q))) {
err = -EINVAL;
goto out;
}
mld2q = (struct mld2_query *)icmp6_hdr(skb);
if (!mld2q->mld2q_nsrcs)
group = &mld2q->mld2q_mca;
max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(mld2q->mld2q_mrc) : 1;
}
if (!group)
goto out;
mp = br_mdb_ip6_get(mlock_dereference(br->mdb, br), group);
if (!mp)
goto out;
max_delay *= br->multicast_last_member_count;
if (!hlist_unhashed(&mp->mglist) &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, now + max_delay) :
try_to_del_timer_sync(&mp->timer) >= 0))
mod_timer(&mp->timer, now + max_delay);
for (pp = &mp->ports;
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
if (timer_pending(&p->timer) ?
time_after(p->timer.expires, now + max_delay) :
try_to_del_timer_sync(&p->timer) >= 0)
mod_timer(&mp->timer, now + max_delay);
}
out:
spin_unlock(&br->multicast_lock);
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,228 | static int br_mdb_copy(struct net_bridge_mdb_htable *new,
struct net_bridge_mdb_htable *old,
int elasticity)
{
struct net_bridge_mdb_entry *mp;
struct hlist_node *p;
int maxlen;
int len;
int i;
for (i = 0; i < old->max; i++)
hlist_for_each_entry(mp, p, &old->mhash[i], hlist[old->ver])
hlist_add_head(&mp->hlist[new->ver],
&new->mhash[br_ip_hash(new, &mp->addr)]);
if (!elasticity)
return 0;
maxlen = 0;
for (i = 0; i < new->max; i++) {
len = 0;
hlist_for_each_entry(mp, p, &new->mhash[i], hlist[new->ver])
len++;
if (len > maxlen)
maxlen = len;
}
return maxlen > elasticity ? -EINVAL : 0;
}
| DoS Mem. Corr. | 0 | static int br_mdb_copy(struct net_bridge_mdb_htable *new,
struct net_bridge_mdb_htable *old,
int elasticity)
{
struct net_bridge_mdb_entry *mp;
struct hlist_node *p;
int maxlen;
int len;
int i;
for (i = 0; i < old->max; i++)
hlist_for_each_entry(mp, p, &old->mhash[i], hlist[old->ver])
hlist_add_head(&mp->hlist[new->ver],
&new->mhash[br_ip_hash(new, &mp->addr)]);
if (!elasticity)
return 0;
maxlen = 0;
for (i = 0; i < new->max; i++) {
len = 0;
hlist_for_each_entry(mp, p, &new->mhash[i], hlist[new->ver])
len++;
if (len > maxlen)
maxlen = len;
}
return maxlen > elasticity ? -EINVAL : 0;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,229 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
struct sk_buff *skb)
{
struct net_bridge_mdb_htable *mdb = rcu_dereference(br->mdb);
struct br_ip ip;
if (br->multicast_disabled)
return NULL;
if (BR_INPUT_SKB_CB(skb)->igmp)
return NULL;
ip.proto = skb->protocol;
switch (skb->protocol) {
case htons(ETH_P_IP):
ip.u.ip4 = ip_hdr(skb)->daddr;
break;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case htons(ETH_P_IPV6):
ipv6_addr_copy(&ip.u.ip6, &ipv6_hdr(skb)->daddr);
break;
#endif
default:
return NULL;
}
return br_mdb_ip_get(mdb, &ip);
}
| DoS Mem. Corr. | 0 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
struct sk_buff *skb)
{
struct net_bridge_mdb_htable *mdb = rcu_dereference(br->mdb);
struct br_ip ip;
if (br->multicast_disabled)
return NULL;
if (BR_INPUT_SKB_CB(skb)->igmp)
return NULL;
ip.proto = skb->protocol;
switch (skb->protocol) {
case htons(ETH_P_IP):
ip.u.ip4 = ip_hdr(skb)->daddr;
break;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case htons(ETH_P_IPV6):
ipv6_addr_copy(&ip.u.ip6, &ipv6_hdr(skb)->daddr);
break;
#endif
default:
return NULL;
}
return br_mdb_ip_get(mdb, &ip);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,230 | static struct net_bridge_mdb_entry *br_mdb_ip4_get(
struct net_bridge_mdb_htable *mdb, __be32 dst)
{
struct br_ip br_dst;
br_dst.u.ip4 = dst;
br_dst.proto = htons(ETH_P_IP);
return br_mdb_ip_get(mdb, &br_dst);
}
| DoS Mem. Corr. | 0 | static struct net_bridge_mdb_entry *br_mdb_ip4_get(
struct net_bridge_mdb_htable *mdb, __be32 dst)
{
struct br_ip br_dst;
br_dst.u.ip4 = dst;
br_dst.proto = htons(ETH_P_IP);
return br_mdb_ip_get(mdb, &br_dst);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,231 | static struct net_bridge_mdb_entry *br_mdb_ip6_get(
struct net_bridge_mdb_htable *mdb, const struct in6_addr *dst)
{
struct br_ip br_dst;
ipv6_addr_copy(&br_dst.u.ip6, dst);
br_dst.proto = htons(ETH_P_IPV6);
return br_mdb_ip_get(mdb, &br_dst);
}
| DoS Mem. Corr. | 0 | static struct net_bridge_mdb_entry *br_mdb_ip6_get(
struct net_bridge_mdb_htable *mdb, const struct in6_addr *dst)
{
struct br_ip br_dst;
ipv6_addr_copy(&br_dst.u.ip6, dst);
br_dst.proto = htons(ETH_P_IPV6);
return br_mdb_ip_get(mdb, &br_dst);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,232 | static struct net_bridge_mdb_entry *br_mdb_ip_get(
struct net_bridge_mdb_htable *mdb, struct br_ip *dst)
{
if (!mdb)
return NULL;
return __br_mdb_ip_get(mdb, dst, br_ip_hash(mdb, dst));
}
| DoS Mem. Corr. | 0 | static struct net_bridge_mdb_entry *br_mdb_ip_get(
struct net_bridge_mdb_htable *mdb, struct br_ip *dst)
{
if (!mdb)
return NULL;
return __br_mdb_ip_get(mdb, dst, br_ip_hash(mdb, dst));
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,233 | static int br_mdb_rehash(struct net_bridge_mdb_htable __rcu **mdbp, int max,
int elasticity)
{
struct net_bridge_mdb_htable *old = rcu_dereference_protected(*mdbp, 1);
struct net_bridge_mdb_htable *mdb;
int err;
mdb = kmalloc(sizeof(*mdb), GFP_ATOMIC);
if (!mdb)
return -ENOMEM;
mdb->max = max;
mdb->old = old;
mdb->mhash = kzalloc(max * sizeof(*mdb->mhash), GFP_ATOMIC);
if (!mdb->mhash) {
kfree(mdb);
return -ENOMEM;
}
mdb->size = old ? old->size : 0;
mdb->ver = old ? old->ver ^ 1 : 0;
if (!old || elasticity)
get_random_bytes(&mdb->secret, sizeof(mdb->secret));
else
mdb->secret = old->secret;
if (!old)
goto out;
err = br_mdb_copy(mdb, old, elasticity);
if (err) {
kfree(mdb->mhash);
kfree(mdb);
return err;
}
call_rcu_bh(&mdb->rcu, br_mdb_free);
out:
rcu_assign_pointer(*mdbp, mdb);
return 0;
}
| DoS Mem. Corr. | 0 | static int br_mdb_rehash(struct net_bridge_mdb_htable __rcu **mdbp, int max,
int elasticity)
{
struct net_bridge_mdb_htable *old = rcu_dereference_protected(*mdbp, 1);
struct net_bridge_mdb_htable *mdb;
int err;
mdb = kmalloc(sizeof(*mdb), GFP_ATOMIC);
if (!mdb)
return -ENOMEM;
mdb->max = max;
mdb->old = old;
mdb->mhash = kzalloc(max * sizeof(*mdb->mhash), GFP_ATOMIC);
if (!mdb->mhash) {
kfree(mdb);
return -ENOMEM;
}
mdb->size = old ? old->size : 0;
mdb->ver = old ? old->ver ^ 1 : 0;
if (!old || elasticity)
get_random_bytes(&mdb->secret, sizeof(mdb->secret));
else
mdb->secret = old->secret;
if (!old)
goto out;
err = br_mdb_copy(mdb, old, elasticity);
if (err) {
kfree(mdb->mhash);
kfree(mdb);
return err;
}
call_rcu_bh(&mdb->rcu, br_mdb_free);
out:
rcu_assign_pointer(*mdbp, mdb);
return 0;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,234 | void br_multicast_add_port(struct net_bridge_port *port)
{
port->multicast_router = 1;
setup_timer(&port->multicast_router_timer, br_multicast_router_expired,
(unsigned long)port);
setup_timer(&port->multicast_query_timer,
br_multicast_port_query_expired, (unsigned long)port);
}
| DoS Mem. Corr. | 0 | void br_multicast_add_port(struct net_bridge_port *port)
{
port->multicast_router = 1;
setup_timer(&port->multicast_router_timer, br_multicast_router_expired,
(unsigned long)port);
setup_timer(&port->multicast_query_timer,
br_multicast_port_query_expired, (unsigned long)port);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,235 | static void br_multicast_add_router(struct net_bridge *br,
struct net_bridge_port *port)
{
struct net_bridge_port *p;
struct hlist_node *n, *slot = NULL;
hlist_for_each_entry(p, n, &br->router_list, rlist) {
if ((unsigned long) port >= (unsigned long) p)
break;
slot = n;
}
if (slot)
hlist_add_after_rcu(slot, &port->rlist);
else
hlist_add_head_rcu(&port->rlist, &br->router_list);
}
| DoS Mem. Corr. | 0 | static void br_multicast_add_router(struct net_bridge *br,
struct net_bridge_port *port)
{
struct net_bridge_port *p;
struct hlist_node *n, *slot = NULL;
hlist_for_each_entry(p, n, &br->router_list, rlist) {
if ((unsigned long) port >= (unsigned long) p)
break;
slot = n;
}
if (slot)
hlist_add_after_rcu(slot, &port->rlist);
else
hlist_add_head_rcu(&port->rlist, &br->router_list);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,236 | static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br,
struct br_ip *addr)
{
switch (addr->proto) {
case htons(ETH_P_IP):
return br_ip4_multicast_alloc_query(br, addr->u.ip4);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case htons(ETH_P_IPV6):
return br_ip6_multicast_alloc_query(br, &addr->u.ip6);
#endif
}
return NULL;
}
| DoS Mem. Corr. | 0 | static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br,
struct br_ip *addr)
{
switch (addr->proto) {
case htons(ETH_P_IP):
return br_ip4_multicast_alloc_query(br, addr->u.ip4);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case htons(ETH_P_IPV6):
return br_ip6_multicast_alloc_query(br, &addr->u.ip6);
#endif
}
return NULL;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,237 | void br_multicast_del_port(struct net_bridge_port *port)
{
del_timer_sync(&port->multicast_router_timer);
}
| DoS Mem. Corr. | 0 | void br_multicast_del_port(struct net_bridge_port *port)
{
del_timer_sync(&port->multicast_router_timer);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,238 | void br_multicast_disable_port(struct net_bridge_port *port)
{
struct net_bridge *br = port->br;
struct net_bridge_port_group *pg;
struct hlist_node *p, *n;
spin_lock(&br->multicast_lock);
hlist_for_each_entry_safe(pg, p, n, &port->mglist, mglist)
br_multicast_del_pg(br, pg);
if (!hlist_unhashed(&port->rlist))
hlist_del_init_rcu(&port->rlist);
del_timer(&port->multicast_router_timer);
del_timer(&port->multicast_query_timer);
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | void br_multicast_disable_port(struct net_bridge_port *port)
{
struct net_bridge *br = port->br;
struct net_bridge_port_group *pg;
struct hlist_node *p, *n;
spin_lock(&br->multicast_lock);
hlist_for_each_entry_safe(pg, p, n, &port->mglist, mglist)
br_multicast_del_pg(br, pg);
if (!hlist_unhashed(&port->rlist))
hlist_del_init_rcu(&port->rlist);
del_timer(&port->multicast_router_timer);
del_timer(&port->multicast_query_timer);
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,239 | void br_multicast_enable_port(struct net_bridge_port *port)
{
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (br->multicast_disabled || !netif_running(br->dev))
goto out;
__br_multicast_enable_port(port);
out:
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | void br_multicast_enable_port(struct net_bridge_port *port)
{
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (br->multicast_disabled || !netif_running(br->dev))
goto out;
__br_multicast_enable_port(port);
out:
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,240 | static void br_multicast_free_group(struct rcu_head *head)
{
struct net_bridge_mdb_entry *mp =
container_of(head, struct net_bridge_mdb_entry, rcu);
kfree(mp);
}
| DoS Mem. Corr. | 0 | static void br_multicast_free_group(struct rcu_head *head)
{
struct net_bridge_mdb_entry *mp =
container_of(head, struct net_bridge_mdb_entry, rcu);
kfree(mp);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,241 | static void br_multicast_free_pg(struct rcu_head *head)
{
struct net_bridge_port_group *p =
container_of(head, struct net_bridge_port_group, rcu);
kfree(p);
}
| DoS Mem. Corr. | 0 | static void br_multicast_free_pg(struct rcu_head *head)
{
struct net_bridge_port_group *p =
container_of(head, struct net_bridge_port_group, rcu);
kfree(p);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,242 | static struct net_bridge_mdb_entry *br_multicast_get_group(
struct net_bridge *br, struct net_bridge_port *port,
struct br_ip *group, int hash)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *p;
unsigned count = 0;
unsigned max;
int elasticity;
int err;
mdb = rcu_dereference_protected(br->mdb, 1);
hlist_for_each_entry(mp, p, &mdb->mhash[hash], hlist[mdb->ver]) {
count++;
if (unlikely(br_ip_equal(group, &mp->addr)))
return mp;
}
elasticity = 0;
max = mdb->max;
if (unlikely(count > br->hash_elasticity && count)) {
if (net_ratelimit())
br_info(br, "Multicast hash table "
"chain limit reached: %s\n",
port ? port->dev->name : br->dev->name);
elasticity = br->hash_elasticity;
}
if (mdb->size >= max) {
max *= 2;
if (unlikely(max >= br->hash_max)) {
br_warn(br, "Multicast hash table maximum "
"reached, disabling snooping: %s, %d\n",
port ? port->dev->name : br->dev->name, max);
err = -E2BIG;
disable:
br->multicast_disabled = 1;
goto err;
}
}
if (max > mdb->max || elasticity) {
if (mdb->old) {
if (net_ratelimit())
br_info(br, "Multicast hash table "
"on fire: %s\n",
port ? port->dev->name : br->dev->name);
err = -EEXIST;
goto err;
}
err = br_mdb_rehash(&br->mdb, max, elasticity);
if (err) {
br_warn(br, "Cannot rehash multicast "
"hash table, disabling snooping: %s, %d, %d\n",
port ? port->dev->name : br->dev->name,
mdb->size, err);
goto disable;
}
err = -EAGAIN;
goto err;
}
return NULL;
err:
mp = ERR_PTR(err);
return mp;
}
| DoS Mem. Corr. | 0 | static struct net_bridge_mdb_entry *br_multicast_get_group(
struct net_bridge *br, struct net_bridge_port *port,
struct br_ip *group, int hash)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *p;
unsigned count = 0;
unsigned max;
int elasticity;
int err;
mdb = rcu_dereference_protected(br->mdb, 1);
hlist_for_each_entry(mp, p, &mdb->mhash[hash], hlist[mdb->ver]) {
count++;
if (unlikely(br_ip_equal(group, &mp->addr)))
return mp;
}
elasticity = 0;
max = mdb->max;
if (unlikely(count > br->hash_elasticity && count)) {
if (net_ratelimit())
br_info(br, "Multicast hash table "
"chain limit reached: %s\n",
port ? port->dev->name : br->dev->name);
elasticity = br->hash_elasticity;
}
if (mdb->size >= max) {
max *= 2;
if (unlikely(max >= br->hash_max)) {
br_warn(br, "Multicast hash table maximum "
"reached, disabling snooping: %s, %d\n",
port ? port->dev->name : br->dev->name, max);
err = -E2BIG;
disable:
br->multicast_disabled = 1;
goto err;
}
}
if (max > mdb->max || elasticity) {
if (mdb->old) {
if (net_ratelimit())
br_info(br, "Multicast hash table "
"on fire: %s\n",
port ? port->dev->name : br->dev->name);
err = -EEXIST;
goto err;
}
err = br_mdb_rehash(&br->mdb, max, elasticity);
if (err) {
br_warn(br, "Cannot rehash multicast "
"hash table, disabling snooping: %s, %d, %d\n",
port ? port->dev->name : br->dev->name,
mdb->size, err);
goto disable;
}
err = -EAGAIN;
goto err;
}
return NULL;
err:
mp = ERR_PTR(err);
return mp;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,243 | static void br_multicast_group_expired(unsigned long data)
{
struct net_bridge_mdb_entry *mp = (void *)data;
struct net_bridge *br = mp->br;
struct net_bridge_mdb_htable *mdb;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || timer_pending(&mp->timer))
goto out;
if (!hlist_unhashed(&mp->mglist))
hlist_del_init(&mp->mglist);
if (mp->ports)
goto out;
mdb = mlock_dereference(br->mdb, br);
hlist_del_rcu(&mp->hlist[mdb->ver]);
mdb->size--;
del_timer(&mp->query_timer);
call_rcu_bh(&mp->rcu, br_multicast_free_group);
out:
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | static void br_multicast_group_expired(unsigned long data)
{
struct net_bridge_mdb_entry *mp = (void *)data;
struct net_bridge *br = mp->br;
struct net_bridge_mdb_htable *mdb;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || timer_pending(&mp->timer))
goto out;
if (!hlist_unhashed(&mp->mglist))
hlist_del_init(&mp->mglist);
if (mp->ports)
goto out;
mdb = mlock_dereference(br->mdb, br);
hlist_del_rcu(&mp->hlist[mdb->ver]);
mdb->size--;
del_timer(&mp->query_timer);
call_rcu_bh(&mp->rcu, br_multicast_free_group);
out:
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,244 | void br_multicast_init(struct net_bridge *br)
{
br->hash_elasticity = 4;
br->hash_max = 512;
br->multicast_router = 1;
br->multicast_last_member_count = 2;
br->multicast_startup_query_count = 2;
br->multicast_last_member_interval = HZ;
br->multicast_query_response_interval = 10 * HZ;
br->multicast_startup_query_interval = 125 * HZ / 4;
br->multicast_query_interval = 125 * HZ;
br->multicast_querier_interval = 255 * HZ;
br->multicast_membership_interval = 260 * HZ;
spin_lock_init(&br->multicast_lock);
setup_timer(&br->multicast_router_timer,
br_multicast_local_router_expired, 0);
setup_timer(&br->multicast_querier_timer,
br_multicast_local_router_expired, 0);
setup_timer(&br->multicast_query_timer, br_multicast_query_expired,
(unsigned long)br);
}
| DoS Mem. Corr. | 0 | void br_multicast_init(struct net_bridge *br)
{
br->hash_elasticity = 4;
br->hash_max = 512;
br->multicast_router = 1;
br->multicast_last_member_count = 2;
br->multicast_startup_query_count = 2;
br->multicast_last_member_interval = HZ;
br->multicast_query_response_interval = 10 * HZ;
br->multicast_startup_query_interval = 125 * HZ / 4;
br->multicast_query_interval = 125 * HZ;
br->multicast_querier_interval = 255 * HZ;
br->multicast_membership_interval = 260 * HZ;
spin_lock_init(&br->multicast_lock);
setup_timer(&br->multicast_router_timer,
br_multicast_local_router_expired, 0);
setup_timer(&br->multicast_querier_timer,
br_multicast_local_router_expired, 0);
setup_timer(&br->multicast_query_timer, br_multicast_query_expired,
(unsigned long)br);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,245 | static int br_multicast_ipv4_rcv(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct sk_buff *skb2 = skb;
struct iphdr *iph;
struct igmphdr *ih;
unsigned len;
unsigned offset;
int err;
/* We treat OOM as packet loss for now. */
if (!pskb_may_pull(skb, sizeof(*iph)))
return -EINVAL;
iph = ip_hdr(skb);
if (iph->ihl < 5 || iph->version != 4)
return -EINVAL;
if (!pskb_may_pull(skb, ip_hdrlen(skb)))
return -EINVAL;
iph = ip_hdr(skb);
if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
return -EINVAL;
if (iph->protocol != IPPROTO_IGMP)
return 0;
len = ntohs(iph->tot_len);
if (skb->len < len || len < ip_hdrlen(skb))
return -EINVAL;
if (skb->len > len) {
skb2 = skb_clone(skb, GFP_ATOMIC);
if (!skb2)
return -ENOMEM;
err = pskb_trim_rcsum(skb2, len);
if (err)
goto err_out;
}
len -= ip_hdrlen(skb2);
offset = skb_network_offset(skb2) + ip_hdrlen(skb2);
__skb_pull(skb2, offset);
skb_reset_transport_header(skb2);
err = -EINVAL;
if (!pskb_may_pull(skb2, sizeof(*ih)))
goto out;
switch (skb2->ip_summed) {
case CHECKSUM_COMPLETE:
if (!csum_fold(skb2->csum))
break;
/* fall through */
case CHECKSUM_NONE:
skb2->csum = 0;
if (skb_checksum_complete(skb2))
goto out;
}
err = 0;
BR_INPUT_SKB_CB(skb)->igmp = 1;
ih = igmp_hdr(skb2);
switch (ih->type) {
case IGMP_HOST_MEMBERSHIP_REPORT:
case IGMPV2_HOST_MEMBERSHIP_REPORT:
BR_INPUT_SKB_CB(skb2)->mrouters_only = 1;
err = br_ip4_multicast_add_group(br, port, ih->group);
break;
case IGMPV3_HOST_MEMBERSHIP_REPORT:
err = br_ip4_multicast_igmp3_report(br, port, skb2);
break;
case IGMP_HOST_MEMBERSHIP_QUERY:
err = br_ip4_multicast_query(br, port, skb2);
break;
case IGMP_HOST_LEAVE_MESSAGE:
br_ip4_multicast_leave_group(br, port, ih->group);
break;
}
out:
__skb_push(skb2, offset);
err_out:
if (skb2 != skb)
kfree_skb(skb2);
return err;
}
| DoS Mem. Corr. | 0 | static int br_multicast_ipv4_rcv(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb)
{
struct sk_buff *skb2 = skb;
struct iphdr *iph;
struct igmphdr *ih;
unsigned len;
unsigned offset;
int err;
/* We treat OOM as packet loss for now. */
if (!pskb_may_pull(skb, sizeof(*iph)))
return -EINVAL;
iph = ip_hdr(skb);
if (iph->ihl < 5 || iph->version != 4)
return -EINVAL;
if (!pskb_may_pull(skb, ip_hdrlen(skb)))
return -EINVAL;
iph = ip_hdr(skb);
if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
return -EINVAL;
if (iph->protocol != IPPROTO_IGMP)
return 0;
len = ntohs(iph->tot_len);
if (skb->len < len || len < ip_hdrlen(skb))
return -EINVAL;
if (skb->len > len) {
skb2 = skb_clone(skb, GFP_ATOMIC);
if (!skb2)
return -ENOMEM;
err = pskb_trim_rcsum(skb2, len);
if (err)
goto err_out;
}
len -= ip_hdrlen(skb2);
offset = skb_network_offset(skb2) + ip_hdrlen(skb2);
__skb_pull(skb2, offset);
skb_reset_transport_header(skb2);
err = -EINVAL;
if (!pskb_may_pull(skb2, sizeof(*ih)))
goto out;
switch (skb2->ip_summed) {
case CHECKSUM_COMPLETE:
if (!csum_fold(skb2->csum))
break;
/* fall through */
case CHECKSUM_NONE:
skb2->csum = 0;
if (skb_checksum_complete(skb2))
goto out;
}
err = 0;
BR_INPUT_SKB_CB(skb)->igmp = 1;
ih = igmp_hdr(skb2);
switch (ih->type) {
case IGMP_HOST_MEMBERSHIP_REPORT:
case IGMPV2_HOST_MEMBERSHIP_REPORT:
BR_INPUT_SKB_CB(skb2)->mrouters_only = 1;
err = br_ip4_multicast_add_group(br, port, ih->group);
break;
case IGMPV3_HOST_MEMBERSHIP_REPORT:
err = br_ip4_multicast_igmp3_report(br, port, skb2);
break;
case IGMP_HOST_MEMBERSHIP_QUERY:
err = br_ip4_multicast_query(br, port, skb2);
break;
case IGMP_HOST_LEAVE_MESSAGE:
br_ip4_multicast_leave_group(br, port, ih->group);
break;
}
out:
__skb_push(skb2, offset);
err_out:
if (skb2 != skb)
kfree_skb(skb2);
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,246 | static void br_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
struct br_ip *group)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct net_bridge_port_group *p;
unsigned long now;
unsigned long time;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
(port && port->state == BR_STATE_DISABLED) ||
timer_pending(&br->multicast_querier_timer))
goto out;
mdb = mlock_dereference(br->mdb, br);
mp = br_mdb_ip_get(mdb, group);
if (!mp)
goto out;
now = jiffies;
time = now + br->multicast_last_member_count *
br->multicast_last_member_interval;
if (!port) {
if (!hlist_unhashed(&mp->mglist) &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, time) :
try_to_del_timer_sync(&mp->timer) >= 0)) {
mod_timer(&mp->timer, time);
mp->queries_sent = 0;
mod_timer(&mp->query_timer, now);
}
goto out;
}
for (p = mlock_dereference(mp->ports, br);
p != NULL;
p = mlock_dereference(p->next, br)) {
if (p->port != port)
continue;
if (!hlist_unhashed(&p->mglist) &&
(timer_pending(&p->timer) ?
time_after(p->timer.expires, time) :
try_to_del_timer_sync(&p->timer) >= 0)) {
mod_timer(&p->timer, time);
p->queries_sent = 0;
mod_timer(&p->query_timer, now);
}
break;
}
out:
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | static void br_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
struct br_ip *group)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct net_bridge_port_group *p;
unsigned long now;
unsigned long time;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
(port && port->state == BR_STATE_DISABLED) ||
timer_pending(&br->multicast_querier_timer))
goto out;
mdb = mlock_dereference(br->mdb, br);
mp = br_mdb_ip_get(mdb, group);
if (!mp)
goto out;
now = jiffies;
time = now + br->multicast_last_member_count *
br->multicast_last_member_interval;
if (!port) {
if (!hlist_unhashed(&mp->mglist) &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, time) :
try_to_del_timer_sync(&mp->timer) >= 0)) {
mod_timer(&mp->timer, time);
mp->queries_sent = 0;
mod_timer(&mp->query_timer, now);
}
goto out;
}
for (p = mlock_dereference(mp->ports, br);
p != NULL;
p = mlock_dereference(p->next, br)) {
if (p->port != port)
continue;
if (!hlist_unhashed(&p->mglist) &&
(timer_pending(&p->timer) ?
time_after(p->timer.expires, time) :
try_to_del_timer_sync(&p->timer) >= 0)) {
mod_timer(&p->timer, time);
p->queries_sent = 0;
mod_timer(&p->query_timer, now);
}
break;
}
out:
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,247 | static void br_multicast_local_router_expired(unsigned long data)
{
}
| DoS Mem. Corr. | 0 | static void br_multicast_local_router_expired(unsigned long data)
{
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,248 | static void br_multicast_mark_router(struct net_bridge *br,
struct net_bridge_port *port)
{
unsigned long now = jiffies;
if (!port) {
if (br->multicast_router == 1)
mod_timer(&br->multicast_router_timer,
now + br->multicast_querier_interval);
return;
}
if (port->multicast_router != 1)
return;
if (!hlist_unhashed(&port->rlist))
goto timer;
br_multicast_add_router(br, port);
timer:
mod_timer(&port->multicast_router_timer,
now + br->multicast_querier_interval);
}
| DoS Mem. Corr. | 0 | static void br_multicast_mark_router(struct net_bridge *br,
struct net_bridge_port *port)
{
unsigned long now = jiffies;
if (!port) {
if (br->multicast_router == 1)
mod_timer(&br->multicast_router_timer,
now + br->multicast_querier_interval);
return;
}
if (port->multicast_router != 1)
return;
if (!hlist_unhashed(&port->rlist))
goto timer;
br_multicast_add_router(br, port);
timer:
mod_timer(&port->multicast_router_timer,
now + br->multicast_querier_interval);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,249 | static struct net_bridge_mdb_entry *br_multicast_new_group(
struct net_bridge *br, struct net_bridge_port *port,
struct br_ip *group)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
int hash;
int err;
mdb = rcu_dereference_protected(br->mdb, 1);
if (!mdb) {
err = br_mdb_rehash(&br->mdb, BR_HASH_SIZE, 0);
if (err)
return ERR_PTR(err);
goto rehash;
}
hash = br_ip_hash(mdb, group);
mp = br_multicast_get_group(br, port, group, hash);
switch (PTR_ERR(mp)) {
case 0:
break;
case -EAGAIN:
rehash:
mdb = rcu_dereference_protected(br->mdb, 1);
hash = br_ip_hash(mdb, group);
break;
default:
goto out;
}
mp = kzalloc(sizeof(*mp), GFP_ATOMIC);
if (unlikely(!mp))
return ERR_PTR(-ENOMEM);
mp->br = br;
mp->addr = *group;
setup_timer(&mp->timer, br_multicast_group_expired,
(unsigned long)mp);
setup_timer(&mp->query_timer, br_multicast_group_query_expired,
(unsigned long)mp);
hlist_add_head_rcu(&mp->hlist[mdb->ver], &mdb->mhash[hash]);
mdb->size++;
out:
return mp;
}
| DoS Mem. Corr. | 0 | static struct net_bridge_mdb_entry *br_multicast_new_group(
struct net_bridge *br, struct net_bridge_port *port,
struct br_ip *group)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
int hash;
int err;
mdb = rcu_dereference_protected(br->mdb, 1);
if (!mdb) {
err = br_mdb_rehash(&br->mdb, BR_HASH_SIZE, 0);
if (err)
return ERR_PTR(err);
goto rehash;
}
hash = br_ip_hash(mdb, group);
mp = br_multicast_get_group(br, port, group, hash);
switch (PTR_ERR(mp)) {
case 0:
break;
case -EAGAIN:
rehash:
mdb = rcu_dereference_protected(br->mdb, 1);
hash = br_ip_hash(mdb, group);
break;
default:
goto out;
}
mp = kzalloc(sizeof(*mp), GFP_ATOMIC);
if (unlikely(!mp))
return ERR_PTR(-ENOMEM);
mp->br = br;
mp->addr = *group;
setup_timer(&mp->timer, br_multicast_group_expired,
(unsigned long)mp);
setup_timer(&mp->query_timer, br_multicast_group_query_expired,
(unsigned long)mp);
hlist_add_head_rcu(&mp->hlist[mdb->ver], &mdb->mhash[hash]);
mdb->size++;
out:
return mp;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,250 | static void br_multicast_port_group_query_expired(unsigned long data)
{
struct net_bridge_port_group *pg = (void *)data;
struct net_bridge_port *port = pg->port;
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || hlist_unhashed(&pg->mglist) ||
pg->queries_sent >= br->multicast_last_member_count)
goto out;
br_multicast_send_port_group_query(pg);
out:
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | static void br_multicast_port_group_query_expired(unsigned long data)
{
struct net_bridge_port_group *pg = (void *)data;
struct net_bridge_port *port = pg->port;
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || hlist_unhashed(&pg->mglist) ||
pg->queries_sent >= br->multicast_last_member_count)
goto out;
br_multicast_send_port_group_query(pg);
out:
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,251 | static void br_multicast_port_query_expired(unsigned long data)
{
struct net_bridge_port *port = (void *)data;
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
goto out;
if (port->multicast_startup_queries_sent <
br->multicast_startup_query_count)
port->multicast_startup_queries_sent++;
br_multicast_send_query(port->br, port,
port->multicast_startup_queries_sent);
out:
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | static void br_multicast_port_query_expired(unsigned long data)
{
struct net_bridge_port *port = (void *)data;
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
goto out;
if (port->multicast_startup_queries_sent <
br->multicast_startup_query_count)
port->multicast_startup_queries_sent++;
br_multicast_send_query(port->br, port,
port->multicast_startup_queries_sent);
out:
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,252 | static void br_multicast_query_expired(unsigned long data)
{
struct net_bridge *br = (void *)data;
spin_lock(&br->multicast_lock);
if (br->multicast_startup_queries_sent <
br->multicast_startup_query_count)
br->multicast_startup_queries_sent++;
br_multicast_send_query(br, NULL, br->multicast_startup_queries_sent);
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | static void br_multicast_query_expired(unsigned long data)
{
struct net_bridge *br = (void *)data;
spin_lock(&br->multicast_lock);
if (br->multicast_startup_queries_sent <
br->multicast_startup_query_count)
br->multicast_startup_queries_sent++;
br_multicast_send_query(br, NULL, br->multicast_startup_queries_sent);
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,253 | static void br_multicast_query_received(struct net_bridge *br,
struct net_bridge_port *port,
int saddr)
{
if (saddr)
mod_timer(&br->multicast_querier_timer,
jiffies + br->multicast_querier_interval);
else if (timer_pending(&br->multicast_querier_timer))
return;
br_multicast_mark_router(br, port);
}
| DoS Mem. Corr. | 0 | static void br_multicast_query_received(struct net_bridge *br,
struct net_bridge_port *port,
int saddr)
{
if (saddr)
mod_timer(&br->multicast_querier_timer,
jiffies + br->multicast_querier_interval);
else if (timer_pending(&br->multicast_querier_timer))
return;
br_multicast_mark_router(br, port);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,254 | static void br_multicast_router_expired(unsigned long data)
{
struct net_bridge_port *port = (void *)data;
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (port->multicast_router != 1 ||
timer_pending(&port->multicast_router_timer) ||
hlist_unhashed(&port->rlist))
goto out;
hlist_del_init_rcu(&port->rlist);
out:
spin_unlock(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | static void br_multicast_router_expired(unsigned long data)
{
struct net_bridge_port *port = (void *)data;
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
if (port->multicast_router != 1 ||
timer_pending(&port->multicast_router_timer) ||
hlist_unhashed(&port->rlist))
goto out;
hlist_del_init_rcu(&port->rlist);
out:
spin_unlock(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,255 | static void br_multicast_send_group_query(struct net_bridge_mdb_entry *mp)
{
struct net_bridge *br = mp->br;
struct sk_buff *skb;
skb = br_multicast_alloc_query(br, &mp->addr);
if (!skb)
goto timer;
netif_rx(skb);
timer:
if (++mp->queries_sent < br->multicast_last_member_count)
mod_timer(&mp->query_timer,
jiffies + br->multicast_last_member_interval);
}
| DoS Mem. Corr. | 0 | static void br_multicast_send_group_query(struct net_bridge_mdb_entry *mp)
{
struct net_bridge *br = mp->br;
struct sk_buff *skb;
skb = br_multicast_alloc_query(br, &mp->addr);
if (!skb)
goto timer;
netif_rx(skb);
timer:
if (++mp->queries_sent < br->multicast_last_member_count)
mod_timer(&mp->query_timer,
jiffies + br->multicast_last_member_interval);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,256 | static void br_multicast_send_port_group_query(struct net_bridge_port_group *pg)
{
struct net_bridge_port *port = pg->port;
struct net_bridge *br = port->br;
struct sk_buff *skb;
skb = br_multicast_alloc_query(br, &pg->addr);
if (!skb)
goto timer;
br_deliver(port, skb);
timer:
if (++pg->queries_sent < br->multicast_last_member_count)
mod_timer(&pg->query_timer,
jiffies + br->multicast_last_member_interval);
}
| DoS Mem. Corr. | 0 | static void br_multicast_send_port_group_query(struct net_bridge_port_group *pg)
{
struct net_bridge_port *port = pg->port;
struct net_bridge *br = port->br;
struct sk_buff *skb;
skb = br_multicast_alloc_query(br, &pg->addr);
if (!skb)
goto timer;
br_deliver(port, skb);
timer:
if (++pg->queries_sent < br->multicast_last_member_count)
mod_timer(&pg->query_timer,
jiffies + br->multicast_last_member_interval);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,257 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val)
{
int err = -ENOENT;
u32 old;
struct net_bridge_mdb_htable *mdb;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev))
goto unlock;
err = -EINVAL;
if (!is_power_of_2(val))
goto unlock;
mdb = mlock_dereference(br->mdb, br);
if (mdb && val < mdb->size)
goto unlock;
err = 0;
old = br->hash_max;
br->hash_max = val;
if (mdb) {
if (mdb->old) {
err = -EEXIST;
rollback:
br->hash_max = old;
goto unlock;
}
err = br_mdb_rehash(&br->mdb, br->hash_max,
br->hash_elasticity);
if (err)
goto rollback;
}
unlock:
spin_unlock(&br->multicast_lock);
return err;
}
| DoS Mem. Corr. | 0 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val)
{
int err = -ENOENT;
u32 old;
struct net_bridge_mdb_htable *mdb;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev))
goto unlock;
err = -EINVAL;
if (!is_power_of_2(val))
goto unlock;
mdb = mlock_dereference(br->mdb, br);
if (mdb && val < mdb->size)
goto unlock;
err = 0;
old = br->hash_max;
br->hash_max = val;
if (mdb) {
if (mdb->old) {
err = -EEXIST;
rollback:
br->hash_max = old;
goto unlock;
}
err = br_mdb_rehash(&br->mdb, br->hash_max,
br->hash_elasticity);
if (err)
goto rollback;
}
unlock:
spin_unlock(&br->multicast_lock);
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,258 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
{
struct net_bridge *br = p->br;
int err = -ENOENT;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || p->state == BR_STATE_DISABLED)
goto unlock;
switch (val) {
case 0:
case 1:
case 2:
p->multicast_router = val;
err = 0;
if (val < 2 && !hlist_unhashed(&p->rlist))
hlist_del_init_rcu(&p->rlist);
if (val == 1)
break;
del_timer(&p->multicast_router_timer);
if (val == 0)
break;
br_multicast_add_router(br, p);
break;
default:
err = -EINVAL;
break;
}
unlock:
spin_unlock(&br->multicast_lock);
return err;
}
| DoS Mem. Corr. | 0 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
{
struct net_bridge *br = p->br;
int err = -ENOENT;
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || p->state == BR_STATE_DISABLED)
goto unlock;
switch (val) {
case 0:
case 1:
case 2:
p->multicast_router = val;
err = 0;
if (val < 2 && !hlist_unhashed(&p->rlist))
hlist_del_init_rcu(&p->rlist);
if (val == 1)
break;
del_timer(&p->multicast_router_timer);
if (val == 0)
break;
br_multicast_add_router(br, p);
break;
default:
err = -EINVAL;
break;
}
unlock:
spin_unlock(&br->multicast_lock);
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,259 | void br_multicast_stop(struct net_bridge *br)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *p, *n;
u32 ver;
int i;
del_timer_sync(&br->multicast_router_timer);
del_timer_sync(&br->multicast_querier_timer);
del_timer_sync(&br->multicast_query_timer);
spin_lock_bh(&br->multicast_lock);
mdb = mlock_dereference(br->mdb, br);
if (!mdb)
goto out;
br->mdb = NULL;
ver = mdb->ver;
for (i = 0; i < mdb->max; i++) {
hlist_for_each_entry_safe(mp, p, n, &mdb->mhash[i],
hlist[ver]) {
del_timer(&mp->timer);
del_timer(&mp->query_timer);
call_rcu_bh(&mp->rcu, br_multicast_free_group);
}
}
if (mdb->old) {
spin_unlock_bh(&br->multicast_lock);
rcu_barrier_bh();
spin_lock_bh(&br->multicast_lock);
WARN_ON(mdb->old);
}
mdb->old = mdb;
call_rcu_bh(&mdb->rcu, br_mdb_free);
out:
spin_unlock_bh(&br->multicast_lock);
}
| DoS Mem. Corr. | 0 | void br_multicast_stop(struct net_bridge *br)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *p, *n;
u32 ver;
int i;
del_timer_sync(&br->multicast_router_timer);
del_timer_sync(&br->multicast_querier_timer);
del_timer_sync(&br->multicast_query_timer);
spin_lock_bh(&br->multicast_lock);
mdb = mlock_dereference(br->mdb, br);
if (!mdb)
goto out;
br->mdb = NULL;
ver = mdb->ver;
for (i = 0; i < mdb->max; i++) {
hlist_for_each_entry_safe(mp, p, n, &mdb->mhash[i],
hlist[ver]) {
del_timer(&mp->timer);
del_timer(&mp->query_timer);
call_rcu_bh(&mp->rcu, br_multicast_free_group);
}
}
if (mdb->old) {
spin_unlock_bh(&br->multicast_lock);
rcu_barrier_bh();
spin_lock_bh(&br->multicast_lock);
WARN_ON(mdb->old);
}
mdb->old = mdb;
call_rcu_bh(&mdb->rcu, br_mdb_free);
out:
spin_unlock_bh(&br->multicast_lock);
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,260 | int br_multicast_toggle(struct net_bridge *br, unsigned long val)
{
struct net_bridge_port *port;
int err = 0;
struct net_bridge_mdb_htable *mdb;
spin_lock(&br->multicast_lock);
if (br->multicast_disabled == !val)
goto unlock;
br->multicast_disabled = !val;
if (br->multicast_disabled)
goto unlock;
if (!netif_running(br->dev))
goto unlock;
mdb = mlock_dereference(br->mdb, br);
if (mdb) {
if (mdb->old) {
err = -EEXIST;
rollback:
br->multicast_disabled = !!val;
goto unlock;
}
err = br_mdb_rehash(&br->mdb, mdb->max,
br->hash_elasticity);
if (err)
goto rollback;
}
br_multicast_open(br);
list_for_each_entry(port, &br->port_list, list) {
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
continue;
__br_multicast_enable_port(port);
}
unlock:
spin_unlock(&br->multicast_lock);
return err;
}
| DoS Mem. Corr. | 0 | int br_multicast_toggle(struct net_bridge *br, unsigned long val)
{
struct net_bridge_port *port;
int err = 0;
struct net_bridge_mdb_htable *mdb;
spin_lock(&br->multicast_lock);
if (br->multicast_disabled == !val)
goto unlock;
br->multicast_disabled = !val;
if (br->multicast_disabled)
goto unlock;
if (!netif_running(br->dev))
goto unlock;
mdb = mlock_dereference(br->mdb, br);
if (mdb) {
if (mdb->old) {
err = -EEXIST;
rollback:
br->multicast_disabled = !!val;
goto unlock;
}
err = br_mdb_rehash(&br->mdb, mdb->max,
br->hash_elasticity);
if (err)
goto rollback;
}
br_multicast_open(br);
list_for_each_entry(port, &br->port_list, list) {
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
continue;
__br_multicast_enable_port(port);
}
unlock:
spin_unlock(&br->multicast_lock);
return err;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,261 | static inline int ipv6_is_local_multicast(const struct in6_addr *addr)
{
if (ipv6_addr_is_multicast(addr) &&
IPV6_ADDR_MC_SCOPE(addr) <= IPV6_ADDR_SCOPE_LINKLOCAL)
return 1;
return 0;
}
| DoS Mem. Corr. | 0 | static inline int ipv6_is_local_multicast(const struct in6_addr *addr)
{
if (ipv6_addr_is_multicast(addr) &&
IPV6_ADDR_MC_SCOPE(addr) <= IPV6_ADDR_SCOPE_LINKLOCAL)
return 1;
return 0;
}
| @@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- hlist_add_head(&mp->mglist, &br->mglist);
+ if (hlist_unhashed(&mp->mglist))
+ hlist_add_head(&mp->mglist, &br->mglist);
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
} | CWE-399 | null | null |
22,262 | static int __init default_policy_setup(char *str)
{
ima_use_tcb = 1;
return 1;
}
| Bypass | 0 | static int __init default_policy_setup(char *str)
{
ima_use_tcb = 1;
return 1;
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,263 | void ima_delete_rules(void)
{
struct ima_measure_rule_entry *entry, *tmp;
mutex_lock(&ima_measure_mutex);
list_for_each_entry_safe(entry, tmp, &measure_policy_rules, list) {
list_del(&entry->list);
kfree(entry);
}
mutex_unlock(&ima_measure_mutex);
}
| Bypass | 0 | void ima_delete_rules(void)
{
struct ima_measure_rule_entry *entry, *tmp;
mutex_lock(&ima_measure_mutex);
list_for_each_entry_safe(entry, tmp, &measure_policy_rules, list) {
list_del(&entry->list);
kfree(entry);
}
mutex_unlock(&ima_measure_mutex);
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,264 | void __init ima_init_policy(void)
{
int i, entries;
/* if !ima_use_tcb set entries = 0 so we load NO default rules */
if (ima_use_tcb)
entries = ARRAY_SIZE(default_rules);
else
entries = 0;
for (i = 0; i < entries; i++)
list_add_tail(&default_rules[i].list, &measure_default_rules);
ima_measure = &measure_default_rules;
}
| Bypass | 0 | void __init ima_init_policy(void)
{
int i, entries;
/* if !ima_use_tcb set entries = 0 so we load NO default rules */
if (ima_use_tcb)
entries = ARRAY_SIZE(default_rules);
else
entries = 0;
for (i = 0; i < entries; i++)
list_add_tail(&default_rules[i].list, &measure_default_rules);
ima_measure = &measure_default_rules;
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,265 | int ima_match_policy(struct inode *inode, enum ima_hooks func, int mask)
{
struct ima_measure_rule_entry *entry;
list_for_each_entry(entry, ima_measure, list) {
bool rc;
rc = ima_match_rules(entry, inode, func, mask);
if (rc)
return entry->action;
}
return 0;
}
| Bypass | 0 | int ima_match_policy(struct inode *inode, enum ima_hooks func, int mask)
{
struct ima_measure_rule_entry *entry;
list_for_each_entry(entry, ima_measure, list) {
bool rc;
rc = ima_match_rules(entry, inode, func, mask);
if (rc)
return entry->action;
}
return 0;
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,266 | static bool ima_match_rules(struct ima_measure_rule_entry *rule,
struct inode *inode, enum ima_hooks func, int mask)
{
struct task_struct *tsk = current;
int i;
if ((rule->flags & IMA_FUNC) && rule->func != func)
return false;
if ((rule->flags & IMA_MASK) && rule->mask != mask)
return false;
if ((rule->flags & IMA_FSMAGIC)
&& rule->fsmagic != inode->i_sb->s_magic)
return false;
if ((rule->flags & IMA_UID) && rule->uid != tsk->cred->uid)
return false;
for (i = 0; i < MAX_LSM_RULES; i++) {
int rc = 0;
u32 osid, sid;
if (!rule->lsm[i].rule)
continue;
switch (i) {
case LSM_OBJ_USER:
case LSM_OBJ_ROLE:
case LSM_OBJ_TYPE:
security_inode_getsecid(inode, &osid);
rc = security_filter_rule_match(osid,
rule->lsm[i].type,
Audit_equal,
rule->lsm[i].rule,
NULL);
break;
case LSM_SUBJ_USER:
case LSM_SUBJ_ROLE:
case LSM_SUBJ_TYPE:
security_task_getsecid(tsk, &sid);
rc = security_filter_rule_match(sid,
rule->lsm[i].type,
Audit_equal,
rule->lsm[i].rule,
NULL);
default:
break;
}
if (!rc)
return false;
}
return true;
}
| Bypass | 0 | static bool ima_match_rules(struct ima_measure_rule_entry *rule,
struct inode *inode, enum ima_hooks func, int mask)
{
struct task_struct *tsk = current;
int i;
if ((rule->flags & IMA_FUNC) && rule->func != func)
return false;
if ((rule->flags & IMA_MASK) && rule->mask != mask)
return false;
if ((rule->flags & IMA_FSMAGIC)
&& rule->fsmagic != inode->i_sb->s_magic)
return false;
if ((rule->flags & IMA_UID) && rule->uid != tsk->cred->uid)
return false;
for (i = 0; i < MAX_LSM_RULES; i++) {
int rc = 0;
u32 osid, sid;
if (!rule->lsm[i].rule)
continue;
switch (i) {
case LSM_OBJ_USER:
case LSM_OBJ_ROLE:
case LSM_OBJ_TYPE:
security_inode_getsecid(inode, &osid);
rc = security_filter_rule_match(osid,
rule->lsm[i].type,
Audit_equal,
rule->lsm[i].rule,
NULL);
break;
case LSM_SUBJ_USER:
case LSM_SUBJ_ROLE:
case LSM_SUBJ_TYPE:
security_task_getsecid(tsk, &sid);
rc = security_filter_rule_match(sid,
rule->lsm[i].type,
Audit_equal,
rule->lsm[i].rule,
NULL);
default:
break;
}
if (!rc)
return false;
}
return true;
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,267 | ssize_t ima_parse_add_rule(char *rule)
{
const char *op = "update_policy";
char *p;
struct ima_measure_rule_entry *entry;
ssize_t result, len;
int audit_info = 0;
/* Prevent installed policy from changing */
if (ima_measure != &measure_default_rules) {
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, "already exists",
-EACCES, audit_info);
return -EACCES;
}
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, "-ENOMEM", -ENOMEM, audit_info);
return -ENOMEM;
}
INIT_LIST_HEAD(&entry->list);
p = strsep(&rule, "\n");
len = strlen(p) + 1;
if (*p == '#') {
kfree(entry);
return len;
}
result = ima_parse_rule(p, entry);
if (result) {
kfree(entry);
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, "invalid policy", result,
audit_info);
return result;
}
mutex_lock(&ima_measure_mutex);
list_add_tail(&entry->list, &measure_policy_rules);
mutex_unlock(&ima_measure_mutex);
return len;
}
| Bypass | 0 | ssize_t ima_parse_add_rule(char *rule)
{
const char *op = "update_policy";
char *p;
struct ima_measure_rule_entry *entry;
ssize_t result, len;
int audit_info = 0;
/* Prevent installed policy from changing */
if (ima_measure != &measure_default_rules) {
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, "already exists",
-EACCES, audit_info);
return -EACCES;
}
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, "-ENOMEM", -ENOMEM, audit_info);
return -ENOMEM;
}
INIT_LIST_HEAD(&entry->list);
p = strsep(&rule, "\n");
len = strlen(p) + 1;
if (*p == '#') {
kfree(entry);
return len;
}
result = ima_parse_rule(p, entry);
if (result) {
kfree(entry);
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, "invalid policy", result,
audit_info);
return result;
}
mutex_lock(&ima_measure_mutex);
list_add_tail(&entry->list, &measure_policy_rules);
mutex_unlock(&ima_measure_mutex);
return len;
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,268 | static int ima_parse_rule(char *rule, struct ima_measure_rule_entry *entry)
{
struct audit_buffer *ab;
char *p;
int result = 0;
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_INTEGRITY_RULE);
entry->uid = -1;
entry->action = UNKNOWN;
while ((p = strsep(&rule, " \t")) != NULL) {
substring_t args[MAX_OPT_ARGS];
int token;
unsigned long lnum;
if (result < 0)
break;
if ((*p == '\0') || (*p == ' ') || (*p == '\t'))
continue;
token = match_token(p, policy_tokens, args);
switch (token) {
case Opt_measure:
ima_log_string(ab, "action", "measure");
if (entry->action != UNKNOWN)
result = -EINVAL;
entry->action = MEASURE;
break;
case Opt_dont_measure:
ima_log_string(ab, "action", "dont_measure");
if (entry->action != UNKNOWN)
result = -EINVAL;
entry->action = DONT_MEASURE;
break;
case Opt_func:
ima_log_string(ab, "func", args[0].from);
if (entry->func)
result = -EINVAL;
if (strcmp(args[0].from, "FILE_CHECK") == 0)
entry->func = FILE_CHECK;
/* PATH_CHECK is for backwards compat */
else if (strcmp(args[0].from, "PATH_CHECK") == 0)
entry->func = FILE_CHECK;
else if (strcmp(args[0].from, "FILE_MMAP") == 0)
entry->func = FILE_MMAP;
else if (strcmp(args[0].from, "BPRM_CHECK") == 0)
entry->func = BPRM_CHECK;
else
result = -EINVAL;
if (!result)
entry->flags |= IMA_FUNC;
break;
case Opt_mask:
ima_log_string(ab, "mask", args[0].from);
if (entry->mask)
result = -EINVAL;
if ((strcmp(args[0].from, "MAY_EXEC")) == 0)
entry->mask = MAY_EXEC;
else if (strcmp(args[0].from, "MAY_WRITE") == 0)
entry->mask = MAY_WRITE;
else if (strcmp(args[0].from, "MAY_READ") == 0)
entry->mask = MAY_READ;
else if (strcmp(args[0].from, "MAY_APPEND") == 0)
entry->mask = MAY_APPEND;
else
result = -EINVAL;
if (!result)
entry->flags |= IMA_MASK;
break;
case Opt_fsmagic:
ima_log_string(ab, "fsmagic", args[0].from);
if (entry->fsmagic) {
result = -EINVAL;
break;
}
result = strict_strtoul(args[0].from, 16,
&entry->fsmagic);
if (!result)
entry->flags |= IMA_FSMAGIC;
break;
case Opt_uid:
ima_log_string(ab, "uid", args[0].from);
if (entry->uid != -1) {
result = -EINVAL;
break;
}
result = strict_strtoul(args[0].from, 10, &lnum);
if (!result) {
entry->uid = (uid_t) lnum;
if (entry->uid != lnum)
result = -EINVAL;
else
entry->flags |= IMA_UID;
}
break;
case Opt_obj_user:
ima_log_string(ab, "obj_user", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_OBJ_USER,
AUDIT_OBJ_USER);
break;
case Opt_obj_role:
ima_log_string(ab, "obj_role", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_OBJ_ROLE,
AUDIT_OBJ_ROLE);
break;
case Opt_obj_type:
ima_log_string(ab, "obj_type", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_OBJ_TYPE,
AUDIT_OBJ_TYPE);
break;
case Opt_subj_user:
ima_log_string(ab, "subj_user", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_SUBJ_USER,
AUDIT_SUBJ_USER);
break;
case Opt_subj_role:
ima_log_string(ab, "subj_role", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_SUBJ_ROLE,
AUDIT_SUBJ_ROLE);
break;
case Opt_subj_type:
ima_log_string(ab, "subj_type", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_SUBJ_TYPE,
AUDIT_SUBJ_TYPE);
break;
case Opt_err:
ima_log_string(ab, "UNKNOWN", p);
result = -EINVAL;
break;
}
}
if (!result && (entry->action == UNKNOWN))
result = -EINVAL;
audit_log_format(ab, "res=%d", !!result);
audit_log_end(ab);
return result;
}
| Bypass | 0 | static int ima_parse_rule(char *rule, struct ima_measure_rule_entry *entry)
{
struct audit_buffer *ab;
char *p;
int result = 0;
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_INTEGRITY_RULE);
entry->uid = -1;
entry->action = UNKNOWN;
while ((p = strsep(&rule, " \t")) != NULL) {
substring_t args[MAX_OPT_ARGS];
int token;
unsigned long lnum;
if (result < 0)
break;
if ((*p == '\0') || (*p == ' ') || (*p == '\t'))
continue;
token = match_token(p, policy_tokens, args);
switch (token) {
case Opt_measure:
ima_log_string(ab, "action", "measure");
if (entry->action != UNKNOWN)
result = -EINVAL;
entry->action = MEASURE;
break;
case Opt_dont_measure:
ima_log_string(ab, "action", "dont_measure");
if (entry->action != UNKNOWN)
result = -EINVAL;
entry->action = DONT_MEASURE;
break;
case Opt_func:
ima_log_string(ab, "func", args[0].from);
if (entry->func)
result = -EINVAL;
if (strcmp(args[0].from, "FILE_CHECK") == 0)
entry->func = FILE_CHECK;
/* PATH_CHECK is for backwards compat */
else if (strcmp(args[0].from, "PATH_CHECK") == 0)
entry->func = FILE_CHECK;
else if (strcmp(args[0].from, "FILE_MMAP") == 0)
entry->func = FILE_MMAP;
else if (strcmp(args[0].from, "BPRM_CHECK") == 0)
entry->func = BPRM_CHECK;
else
result = -EINVAL;
if (!result)
entry->flags |= IMA_FUNC;
break;
case Opt_mask:
ima_log_string(ab, "mask", args[0].from);
if (entry->mask)
result = -EINVAL;
if ((strcmp(args[0].from, "MAY_EXEC")) == 0)
entry->mask = MAY_EXEC;
else if (strcmp(args[0].from, "MAY_WRITE") == 0)
entry->mask = MAY_WRITE;
else if (strcmp(args[0].from, "MAY_READ") == 0)
entry->mask = MAY_READ;
else if (strcmp(args[0].from, "MAY_APPEND") == 0)
entry->mask = MAY_APPEND;
else
result = -EINVAL;
if (!result)
entry->flags |= IMA_MASK;
break;
case Opt_fsmagic:
ima_log_string(ab, "fsmagic", args[0].from);
if (entry->fsmagic) {
result = -EINVAL;
break;
}
result = strict_strtoul(args[0].from, 16,
&entry->fsmagic);
if (!result)
entry->flags |= IMA_FSMAGIC;
break;
case Opt_uid:
ima_log_string(ab, "uid", args[0].from);
if (entry->uid != -1) {
result = -EINVAL;
break;
}
result = strict_strtoul(args[0].from, 10, &lnum);
if (!result) {
entry->uid = (uid_t) lnum;
if (entry->uid != lnum)
result = -EINVAL;
else
entry->flags |= IMA_UID;
}
break;
case Opt_obj_user:
ima_log_string(ab, "obj_user", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_OBJ_USER,
AUDIT_OBJ_USER);
break;
case Opt_obj_role:
ima_log_string(ab, "obj_role", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_OBJ_ROLE,
AUDIT_OBJ_ROLE);
break;
case Opt_obj_type:
ima_log_string(ab, "obj_type", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_OBJ_TYPE,
AUDIT_OBJ_TYPE);
break;
case Opt_subj_user:
ima_log_string(ab, "subj_user", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_SUBJ_USER,
AUDIT_SUBJ_USER);
break;
case Opt_subj_role:
ima_log_string(ab, "subj_role", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_SUBJ_ROLE,
AUDIT_SUBJ_ROLE);
break;
case Opt_subj_type:
ima_log_string(ab, "subj_type", args[0].from);
result = ima_lsm_rule_init(entry, args[0].from,
LSM_SUBJ_TYPE,
AUDIT_SUBJ_TYPE);
break;
case Opt_err:
ima_log_string(ab, "UNKNOWN", p);
result = -EINVAL;
break;
}
}
if (!result && (entry->action == UNKNOWN))
result = -EINVAL;
audit_log_format(ab, "res=%d", !!result);
audit_log_end(ab);
return result;
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,269 | void ima_update_policy(void)
{
const char *op = "policy_update";
const char *cause = "already exists";
int result = 1;
int audit_info = 0;
if (ima_measure == &measure_default_rules) {
ima_measure = &measure_policy_rules;
cause = "complete";
result = 0;
}
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, cause, result, audit_info);
}
| Bypass | 0 | void ima_update_policy(void)
{
const char *op = "policy_update";
const char *cause = "already exists";
int result = 1;
int audit_info = 0;
if (ima_measure == &measure_default_rules) {
ima_measure = &measure_policy_rules;
cause = "complete";
result = 0;
}
integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
NULL, op, cause, result, audit_info);
}
| @@ -253,6 +253,8 @@ static int ima_lsm_rule_init(struct ima_measure_rule_entry *entry,
result = security_filter_rule_init(entry->lsm[lsm_rule].type,
Audit_equal, args,
&entry->lsm[lsm_rule].rule);
+ if (!entry->lsm[lsm_rule].rule)
+ return -EINVAL;
return result;
}
| CWE-264 | null | null |
22,270 | static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
{
struct inode *inode = mapping->host;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
struct fuse_bmap_in inarg;
struct fuse_bmap_out outarg;
int err;
if (!inode->i_sb->s_bdev || fc->no_bmap)
return 0;
req = fuse_get_req(fc);
if (IS_ERR(req))
return 0;
memset(&inarg, 0, sizeof(inarg));
inarg.block = block;
inarg.blocksize = inode->i_sb->s_blocksize;
req->in.h.opcode = FUSE_BMAP;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
req->out.numargs = 1;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS)
fc->no_bmap = 1;
return err ? 0 : outarg.block;
}
| DoS Overflow | 0 | static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
{
struct inode *inode = mapping->host;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
struct fuse_bmap_in inarg;
struct fuse_bmap_out outarg;
int err;
if (!inode->i_sb->s_bdev || fc->no_bmap)
return 0;
req = fuse_get_req(fc);
if (IS_ERR(req))
return 0;
memset(&inarg, 0, sizeof(inarg));
inarg.block = block;
inarg.blocksize = inode->i_sb->s_blocksize;
req->in.h.opcode = FUSE_BMAP;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
req->out.numargs = 1;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS)
fc->no_bmap = 1;
return err ? 0 : outarg.block;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,271 | static int fuse_buffered_write(struct file *file, struct inode *inode,
loff_t pos, unsigned count, struct page *page)
{
int err;
size_t nres;
struct fuse_conn *fc = get_fuse_conn(inode);
unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
struct fuse_req *req;
if (is_bad_inode(inode))
return -EIO;
/*
* Make sure writepages on the same page are not mixed up with
* plain writes.
*/
fuse_wait_on_page_writeback(inode, page->index);
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
req->in.argpages = 1;
req->num_pages = 1;
req->pages[0] = page;
req->page_offset = offset;
nres = fuse_send_write(req, file, pos, count, NULL);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err && !nres)
err = -EIO;
if (!err) {
pos += nres;
fuse_write_update_size(inode, pos);
if (count == PAGE_CACHE_SIZE)
SetPageUptodate(page);
}
fuse_invalidate_attr(inode);
return err ? err : nres;
}
| DoS Overflow | 0 | static int fuse_buffered_write(struct file *file, struct inode *inode,
loff_t pos, unsigned count, struct page *page)
{
int err;
size_t nres;
struct fuse_conn *fc = get_fuse_conn(inode);
unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
struct fuse_req *req;
if (is_bad_inode(inode))
return -EIO;
/*
* Make sure writepages on the same page are not mixed up with
* plain writes.
*/
fuse_wait_on_page_writeback(inode, page->index);
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
req->in.argpages = 1;
req->num_pages = 1;
req->pages[0] = page;
req->page_offset = offset;
nres = fuse_send_write(req, file, pos, count, NULL);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err && !nres)
err = -EIO;
if (!err) {
pos += nres;
fuse_write_update_size(inode, pos);
if (count == PAGE_CACHE_SIZE)
SetPageUptodate(page);
}
fuse_invalidate_attr(inode);
return err ? err : nres;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,272 | static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
size_t transferred, unsigned count,
bool is_compat)
{
#ifdef CONFIG_COMPAT
if (count * sizeof(struct compat_iovec) == transferred) {
struct compat_iovec *ciov = src;
unsigned i;
/*
* With this interface a 32bit server cannot support
* non-compat (i.e. ones coming from 64bit apps) ioctl
* requests
*/
if (!is_compat)
return -EINVAL;
for (i = 0; i < count; i++) {
dst[i].iov_base = compat_ptr(ciov[i].iov_base);
dst[i].iov_len = ciov[i].iov_len;
}
return 0;
}
#endif
if (count * sizeof(struct iovec) != transferred)
return -EIO;
memcpy(dst, src, transferred);
return 0;
}
| DoS Overflow | 0 | static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
size_t transferred, unsigned count,
bool is_compat)
{
#ifdef CONFIG_COMPAT
if (count * sizeof(struct compat_iovec) == transferred) {
struct compat_iovec *ciov = src;
unsigned i;
/*
* With this interface a 32bit server cannot support
* non-compat (i.e. ones coming from 64bit apps) ioctl
* requests
*/
if (!is_compat)
return -EINVAL;
for (i = 0; i < count; i++) {
dst[i].iov_base = compat_ptr(ciov[i].iov_base);
dst[i].iov_len = ciov[i].iov_len;
}
return 0;
}
#endif
if (count * sizeof(struct iovec) != transferred)
return -EIO;
memcpy(dst, src, transferred);
return 0;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,273 | ssize_t fuse_direct_io(struct file *file, const char __user *buf,
size_t count, loff_t *ppos, int write)
{
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = ff->fc;
size_t nmax = write ? fc->max_write : fc->max_read;
loff_t pos = *ppos;
ssize_t res = 0;
struct fuse_req *req;
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
while (count) {
size_t nres;
fl_owner_t owner = current->files;
size_t nbytes = min(count, nmax);
int err = fuse_get_user_pages(req, buf, &nbytes, write);
if (err) {
res = err;
break;
}
if (write)
nres = fuse_send_write(req, file, pos, nbytes, owner);
else
nres = fuse_send_read(req, file, pos, nbytes, owner);
fuse_release_user_pages(req, !write);
if (req->out.h.error) {
if (!res)
res = req->out.h.error;
break;
} else if (nres > nbytes) {
res = -EIO;
break;
}
count -= nres;
res += nres;
pos += nres;
buf += nres;
if (nres != nbytes)
break;
if (count) {
fuse_put_request(fc, req);
req = fuse_get_req(fc);
if (IS_ERR(req))
break;
}
}
if (!IS_ERR(req))
fuse_put_request(fc, req);
if (res > 0)
*ppos = pos;
return res;
}
| DoS Overflow | 0 | ssize_t fuse_direct_io(struct file *file, const char __user *buf,
size_t count, loff_t *ppos, int write)
{
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = ff->fc;
size_t nmax = write ? fc->max_write : fc->max_read;
loff_t pos = *ppos;
ssize_t res = 0;
struct fuse_req *req;
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
while (count) {
size_t nres;
fl_owner_t owner = current->files;
size_t nbytes = min(count, nmax);
int err = fuse_get_user_pages(req, buf, &nbytes, write);
if (err) {
res = err;
break;
}
if (write)
nres = fuse_send_write(req, file, pos, nbytes, owner);
else
nres = fuse_send_read(req, file, pos, nbytes, owner);
fuse_release_user_pages(req, !write);
if (req->out.h.error) {
if (!res)
res = req->out.h.error;
break;
} else if (nres > nbytes) {
res = -EIO;
break;
}
count -= nres;
res += nres;
pos += nres;
buf += nres;
if (nres != nbytes)
break;
if (count) {
fuse_put_request(fc, req);
req = fuse_get_req(fc);
if (IS_ERR(req))
break;
}
}
if (!IS_ERR(req))
fuse_put_request(fc, req);
if (res > 0)
*ppos = pos;
return res;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,274 | static int fuse_direct_mmap(struct file *file, struct vm_area_struct *vma)
{
/* Can't provide the coherency needed for MAP_SHARED */
if (vma->vm_flags & VM_MAYSHARE)
return -ENODEV;
invalidate_inode_pages2(file->f_mapping);
return generic_file_mmap(file, vma);
}
| DoS Overflow | 0 | static int fuse_direct_mmap(struct file *file, struct vm_area_struct *vma)
{
/* Can't provide the coherency needed for MAP_SHARED */
if (vma->vm_flags & VM_MAYSHARE)
return -ENODEV;
invalidate_inode_pages2(file->f_mapping);
return generic_file_mmap(file, vma);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,275 | static ssize_t fuse_direct_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
ssize_t res;
struct inode *inode = file->f_path.dentry->d_inode;
if (is_bad_inode(inode))
return -EIO;
res = fuse_direct_io(file, buf, count, ppos, 0);
fuse_invalidate_attr(inode);
return res;
}
| DoS Overflow | 0 | static ssize_t fuse_direct_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
ssize_t res;
struct inode *inode = file->f_path.dentry->d_inode;
if (is_bad_inode(inode))
return -EIO;
res = fuse_direct_io(file, buf, count, ppos, 0);
fuse_invalidate_attr(inode);
return res;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,276 | static ssize_t fuse_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct inode *inode = iocb->ki_filp->f_mapping->host;
if (pos + iov_length(iov, nr_segs) > i_size_read(inode)) {
int err;
/*
* If trying to read past EOF, make sure the i_size
* attribute is up-to-date.
*/
err = fuse_update_attributes(inode, NULL, iocb->ki_filp, NULL);
if (err)
return err;
}
return generic_file_aio_read(iocb, iov, nr_segs, pos);
}
| DoS Overflow | 0 | static ssize_t fuse_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct inode *inode = iocb->ki_filp->f_mapping->host;
if (pos + iov_length(iov, nr_segs) > i_size_read(inode)) {
int err;
/*
* If trying to read past EOF, make sure the i_size
* attribute is up-to-date.
*/
err = fuse_update_attributes(inode, NULL, iocb->ki_filp, NULL);
if (err)
return err;
}
return generic_file_aio_read(iocb, iov, nr_segs, pos);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,277 | static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
size_t count = 0;
ssize_t written = 0;
struct inode *inode = mapping->host;
ssize_t err;
struct iov_iter i;
WARN_ON(iocb->ki_pos != pos);
err = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ);
if (err)
return err;
mutex_lock(&inode->i_mutex);
vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
/* We can write back this queue in page reclaim */
current->backing_dev_info = mapping->backing_dev_info;
err = generic_write_checks(file, &pos, &count, S_ISBLK(inode->i_mode));
if (err)
goto out;
if (count == 0)
goto out;
err = file_remove_suid(file);
if (err)
goto out;
file_update_time(file);
iov_iter_init(&i, iov, nr_segs, count, 0);
written = fuse_perform_write(file, mapping, &i, pos);
if (written >= 0)
iocb->ki_pos = pos + written;
out:
current->backing_dev_info = NULL;
mutex_unlock(&inode->i_mutex);
return written ? written : err;
}
| DoS Overflow | 0 | static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
size_t count = 0;
ssize_t written = 0;
struct inode *inode = mapping->host;
ssize_t err;
struct iov_iter i;
WARN_ON(iocb->ki_pos != pos);
err = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ);
if (err)
return err;
mutex_lock(&inode->i_mutex);
vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
/* We can write back this queue in page reclaim */
current->backing_dev_info = mapping->backing_dev_info;
err = generic_write_checks(file, &pos, &count, S_ISBLK(inode->i_mode));
if (err)
goto out;
if (count == 0)
goto out;
err = file_remove_suid(file);
if (err)
goto out;
file_update_time(file);
iov_iter_init(&i, iov, nr_segs, count, 0);
written = fuse_perform_write(file, mapping, &i, pos);
if (written >= 0)
iocb->ki_pos = pos + written;
out:
current->backing_dev_info = NULL;
mutex_unlock(&inode->i_mutex);
return written ? written : err;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,278 | struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
{
struct fuse_file *ff;
ff = kmalloc(sizeof(struct fuse_file), GFP_KERNEL);
if (unlikely(!ff))
return NULL;
ff->fc = fc;
ff->reserved_req = fuse_request_alloc();
if (unlikely(!ff->reserved_req)) {
kfree(ff);
return NULL;
}
INIT_LIST_HEAD(&ff->write_entry);
atomic_set(&ff->count, 0);
RB_CLEAR_NODE(&ff->polled_node);
init_waitqueue_head(&ff->poll_wait);
spin_lock(&fc->lock);
ff->kh = ++fc->khctr;
spin_unlock(&fc->lock);
return ff;
}
| DoS Overflow | 0 | struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
{
struct fuse_file *ff;
ff = kmalloc(sizeof(struct fuse_file), GFP_KERNEL);
if (unlikely(!ff))
return NULL;
ff->fc = fc;
ff->reserved_req = fuse_request_alloc();
if (unlikely(!ff->reserved_req)) {
kfree(ff);
return NULL;
}
INIT_LIST_HEAD(&ff->write_entry);
atomic_set(&ff->count, 0);
RB_CLEAR_NODE(&ff->polled_node);
init_waitqueue_head(&ff->poll_wait);
spin_lock(&fc->lock);
ff->kh = ++fc->khctr;
spin_unlock(&fc->lock);
return ff;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,279 | static long fuse_file_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
return fuse_file_ioctl_common(file, cmd, arg, FUSE_IOCTL_COMPAT);
}
| DoS Overflow | 0 | static long fuse_file_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
return fuse_file_ioctl_common(file, cmd, arg, FUSE_IOCTL_COMPAT);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,280 | void fuse_file_free(struct fuse_file *ff)
{
fuse_request_free(ff->reserved_req);
kfree(ff);
}
| DoS Overflow | 0 | void fuse_file_free(struct fuse_file *ff)
{
fuse_request_free(ff->reserved_req);
kfree(ff);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,281 | struct fuse_file *fuse_file_get(struct fuse_file *ff)
{
atomic_inc(&ff->count);
return ff;
}
| DoS Overflow | 0 | struct fuse_file *fuse_file_get(struct fuse_file *ff)
{
atomic_inc(&ff->count);
return ff;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,282 | static long fuse_file_ioctl_common(struct file *file, unsigned int cmd,
unsigned long arg, unsigned int flags)
{
struct inode *inode = file->f_dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
if (!fuse_allow_task(fc, current))
return -EACCES;
if (is_bad_inode(inode))
return -EIO;
return fuse_do_ioctl(file, cmd, arg, flags);
}
| DoS Overflow | 0 | static long fuse_file_ioctl_common(struct file *file, unsigned int cmd,
unsigned long arg, unsigned int flags)
{
struct inode *inode = file->f_dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
if (!fuse_allow_task(fc, current))
return -EACCES;
if (is_bad_inode(inode))
return -EIO;
return fuse_do_ioctl(file, cmd, arg, flags);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,283 | static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
{
loff_t retval;
struct inode *inode = file->f_path.dentry->d_inode;
mutex_lock(&inode->i_mutex);
switch (origin) {
case SEEK_END:
retval = fuse_update_attributes(inode, NULL, file, NULL);
if (retval)
goto exit;
offset += i_size_read(inode);
break;
case SEEK_CUR:
offset += file->f_pos;
}
retval = -EINVAL;
if (offset >= 0 && offset <= inode->i_sb->s_maxbytes) {
if (offset != file->f_pos) {
file->f_pos = offset;
file->f_version = 0;
}
retval = offset;
}
exit:
mutex_unlock(&inode->i_mutex);
return retval;
}
| DoS Overflow | 0 | static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
{
loff_t retval;
struct inode *inode = file->f_path.dentry->d_inode;
mutex_lock(&inode->i_mutex);
switch (origin) {
case SEEK_END:
retval = fuse_update_attributes(inode, NULL, file, NULL);
if (retval)
goto exit;
offset += i_size_read(inode);
break;
case SEEK_CUR:
offset += file->f_pos;
}
retval = -EINVAL;
if (offset >= 0 && offset <= inode->i_sb->s_maxbytes) {
if (offset != file->f_pos) {
file->f_pos = offset;
file->f_version = 0;
}
retval = offset;
}
exit:
mutex_unlock(&inode->i_mutex);
return retval;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,284 | static int fuse_file_mmap(struct file *file, struct vm_area_struct *vma)
{
if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE)) {
struct inode *inode = file->f_dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_file *ff = file->private_data;
/*
* file may be written through mmap, so chain it onto the
* inodes's write_file list
*/
spin_lock(&fc->lock);
if (list_empty(&ff->write_entry))
list_add(&ff->write_entry, &fi->write_files);
spin_unlock(&fc->lock);
}
file_accessed(file);
vma->vm_ops = &fuse_file_vm_ops;
return 0;
}
| DoS Overflow | 0 | static int fuse_file_mmap(struct file *file, struct vm_area_struct *vma)
{
if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE)) {
struct inode *inode = file->f_dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_file *ff = file->private_data;
/*
* file may be written through mmap, so chain it onto the
* inodes's write_file list
*/
spin_lock(&fc->lock);
if (list_empty(&ff->write_entry))
list_add(&ff->write_entry, &fi->write_files);
spin_unlock(&fc->lock);
}
file_accessed(file);
vma->vm_ops = &fuse_file_vm_ops;
return 0;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,285 | unsigned fuse_file_poll(struct file *file, poll_table *wait)
{
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = ff->fc;
struct fuse_poll_in inarg = { .fh = ff->fh, .kh = ff->kh };
struct fuse_poll_out outarg;
struct fuse_req *req;
int err;
if (fc->no_poll)
return DEFAULT_POLLMASK;
poll_wait(file, &ff->poll_wait, wait);
/*
* Ask for notification iff there's someone waiting for it.
* The client may ignore the flag and always notify.
*/
if (waitqueue_active(&ff->poll_wait)) {
inarg.flags |= FUSE_POLL_SCHEDULE_NOTIFY;
fuse_register_polled_file(fc, ff);
}
req = fuse_get_req(fc);
if (IS_ERR(req))
return POLLERR;
req->in.h.opcode = FUSE_POLL;
req->in.h.nodeid = ff->nodeid;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
req->out.numargs = 1;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err)
return outarg.revents;
if (err == -ENOSYS) {
fc->no_poll = 1;
return DEFAULT_POLLMASK;
}
return POLLERR;
}
| DoS Overflow | 0 | unsigned fuse_file_poll(struct file *file, poll_table *wait)
{
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = ff->fc;
struct fuse_poll_in inarg = { .fh = ff->fh, .kh = ff->kh };
struct fuse_poll_out outarg;
struct fuse_req *req;
int err;
if (fc->no_poll)
return DEFAULT_POLLMASK;
poll_wait(file, &ff->poll_wait, wait);
/*
* Ask for notification iff there's someone waiting for it.
* The client may ignore the flag and always notify.
*/
if (waitqueue_active(&ff->poll_wait)) {
inarg.flags |= FUSE_POLL_SCHEDULE_NOTIFY;
fuse_register_polled_file(fc, ff);
}
req = fuse_get_req(fc);
if (IS_ERR(req))
return POLLERR;
req->in.h.opcode = FUSE_POLL;
req->in.h.nodeid = ff->nodeid;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
req->out.numargs = 1;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err)
return outarg.revents;
if (err == -ENOSYS) {
fc->no_poll = 1;
return DEFAULT_POLLMASK;
}
return POLLERR;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,286 | static void fuse_file_put(struct fuse_file *ff)
{
if (atomic_dec_and_test(&ff->count)) {
struct fuse_req *req = ff->reserved_req;
req->end = fuse_release_end;
fuse_request_send_background(ff->fc, req);
kfree(ff);
}
}
| DoS Overflow | 0 | static void fuse_file_put(struct fuse_file *ff)
{
if (atomic_dec_and_test(&ff->count)) {
struct fuse_req *req = ff->reserved_req;
req->end = fuse_release_end;
fuse_request_send_background(ff->fc, req);
kfree(ff);
}
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,287 | static ssize_t fuse_fill_write_pages(struct fuse_req *req,
struct address_space *mapping,
struct iov_iter *ii, loff_t pos)
{
struct fuse_conn *fc = get_fuse_conn(mapping->host);
unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
size_t count = 0;
int err;
req->in.argpages = 1;
req->page_offset = offset;
do {
size_t tmp;
struct page *page;
pgoff_t index = pos >> PAGE_CACHE_SHIFT;
size_t bytes = min_t(size_t, PAGE_CACHE_SIZE - offset,
iov_iter_count(ii));
bytes = min_t(size_t, bytes, fc->max_write - count);
again:
err = -EFAULT;
if (iov_iter_fault_in_readable(ii, bytes))
break;
err = -ENOMEM;
page = grab_cache_page_write_begin(mapping, index, 0);
if (!page)
break;
if (mapping_writably_mapped(mapping))
flush_dcache_page(page);
pagefault_disable();
tmp = iov_iter_copy_from_user_atomic(page, ii, offset, bytes);
pagefault_enable();
flush_dcache_page(page);
if (!tmp) {
unlock_page(page);
page_cache_release(page);
bytes = min(bytes, iov_iter_single_seg_count(ii));
goto again;
}
err = 0;
req->pages[req->num_pages] = page;
req->num_pages++;
iov_iter_advance(ii, tmp);
count += tmp;
pos += tmp;
offset += tmp;
if (offset == PAGE_CACHE_SIZE)
offset = 0;
if (!fc->big_writes)
break;
} while (iov_iter_count(ii) && count < fc->max_write &&
req->num_pages < FUSE_MAX_PAGES_PER_REQ && offset == 0);
return count > 0 ? count : err;
}
| DoS Overflow | 0 | static ssize_t fuse_fill_write_pages(struct fuse_req *req,
struct address_space *mapping,
struct iov_iter *ii, loff_t pos)
{
struct fuse_conn *fc = get_fuse_conn(mapping->host);
unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
size_t count = 0;
int err;
req->in.argpages = 1;
req->page_offset = offset;
do {
size_t tmp;
struct page *page;
pgoff_t index = pos >> PAGE_CACHE_SHIFT;
size_t bytes = min_t(size_t, PAGE_CACHE_SIZE - offset,
iov_iter_count(ii));
bytes = min_t(size_t, bytes, fc->max_write - count);
again:
err = -EFAULT;
if (iov_iter_fault_in_readable(ii, bytes))
break;
err = -ENOMEM;
page = grab_cache_page_write_begin(mapping, index, 0);
if (!page)
break;
if (mapping_writably_mapped(mapping))
flush_dcache_page(page);
pagefault_disable();
tmp = iov_iter_copy_from_user_atomic(page, ii, offset, bytes);
pagefault_enable();
flush_dcache_page(page);
if (!tmp) {
unlock_page(page);
page_cache_release(page);
bytes = min(bytes, iov_iter_single_seg_count(ii));
goto again;
}
err = 0;
req->pages[req->num_pages] = page;
req->num_pages++;
iov_iter_advance(ii, tmp);
count += tmp;
pos += tmp;
offset += tmp;
if (offset == PAGE_CACHE_SIZE)
offset = 0;
if (!fc->big_writes)
break;
} while (iov_iter_count(ii) && count < fc->max_write &&
req->num_pages < FUSE_MAX_PAGES_PER_REQ && offset == 0);
return count > 0 ? count : err;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,288 | static struct rb_node **fuse_find_polled_node(struct fuse_conn *fc, u64 kh,
struct rb_node **parent_out)
{
struct rb_node **link = &fc->polled_files.rb_node;
struct rb_node *last = NULL;
while (*link) {
struct fuse_file *ff;
last = *link;
ff = rb_entry(last, struct fuse_file, polled_node);
if (kh < ff->kh)
link = &last->rb_left;
else if (kh > ff->kh)
link = &last->rb_right;
else
return link;
}
if (parent_out)
*parent_out = last;
return link;
}
| DoS Overflow | 0 | static struct rb_node **fuse_find_polled_node(struct fuse_conn *fc, u64 kh,
struct rb_node **parent_out)
{
struct rb_node **link = &fc->polled_files.rb_node;
struct rb_node *last = NULL;
while (*link) {
struct fuse_file *ff;
last = *link;
ff = rb_entry(last, struct fuse_file, polled_node);
if (kh < ff->kh)
link = &last->rb_left;
else if (kh > ff->kh)
link = &last->rb_right;
else
return link;
}
if (parent_out)
*parent_out = last;
return link;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,289 | void fuse_finish_open(struct inode *inode, struct file *file)
{
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = get_fuse_conn(inode);
if (ff->open_flags & FOPEN_DIRECT_IO)
file->f_op = &fuse_direct_io_file_operations;
if (!(ff->open_flags & FOPEN_KEEP_CACHE))
invalidate_inode_pages2(inode->i_mapping);
if (ff->open_flags & FOPEN_NONSEEKABLE)
nonseekable_open(inode, file);
if (fc->atomic_o_trunc && (file->f_flags & O_TRUNC)) {
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
i_size_write(inode, 0);
spin_unlock(&fc->lock);
fuse_invalidate_attr(inode);
}
}
| DoS Overflow | 0 | void fuse_finish_open(struct inode *inode, struct file *file)
{
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = get_fuse_conn(inode);
if (ff->open_flags & FOPEN_DIRECT_IO)
file->f_op = &fuse_direct_io_file_operations;
if (!(ff->open_flags & FOPEN_KEEP_CACHE))
invalidate_inode_pages2(inode->i_mapping);
if (ff->open_flags & FOPEN_NONSEEKABLE)
nonseekable_open(inode, file);
if (fc->atomic_o_trunc && (file->f_flags & O_TRUNC)) {
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
i_size_write(inode, 0);
spin_unlock(&fc->lock);
fuse_invalidate_attr(inode);
}
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,290 | static int fuse_flush(struct file *file, fl_owner_t id)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_req *req;
struct fuse_flush_in inarg;
int err;
if (is_bad_inode(inode))
return -EIO;
if (fc->no_flush)
return 0;
req = fuse_get_req_nofail(fc, file);
memset(&inarg, 0, sizeof(inarg));
inarg.fh = ff->fh;
inarg.lock_owner = fuse_lock_owner_id(fc, id);
req->in.h.opcode = FUSE_FLUSH;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
req->force = 1;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
fc->no_flush = 1;
err = 0;
}
return err;
}
| DoS Overflow | 0 | static int fuse_flush(struct file *file, fl_owner_t id)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_req *req;
struct fuse_flush_in inarg;
int err;
if (is_bad_inode(inode))
return -EIO;
if (fc->no_flush)
return 0;
req = fuse_get_req_nofail(fc, file);
memset(&inarg, 0, sizeof(inarg));
inarg.fh = ff->fh;
inarg.lock_owner = fuse_lock_owner_id(fc, id);
req->in.h.opcode = FUSE_FLUSH;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
req->force = 1;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
fc->no_flush = 1;
err = 0;
}
return err;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,291 | static int fuse_fsync(struct file *file, int datasync)
{
return fuse_fsync_common(file, datasync, 0);
}
| DoS Overflow | 0 | static int fuse_fsync(struct file *file, int datasync)
{
return fuse_fsync_common(file, datasync, 0);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,292 | int fuse_fsync_common(struct file *file, int datasync, int isdir)
{
struct inode *inode = file->f_mapping->host;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_req *req;
struct fuse_fsync_in inarg;
int err;
if (is_bad_inode(inode))
return -EIO;
if ((!isdir && fc->no_fsync) || (isdir && fc->no_fsyncdir))
return 0;
/*
* Start writeback against all dirty pages of the inode, then
* wait for all outstanding writes, before sending the FSYNC
* request.
*/
err = write_inode_now(inode, 0);
if (err)
return err;
fuse_sync_writes(inode);
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
memset(&inarg, 0, sizeof(inarg));
inarg.fh = ff->fh;
inarg.fsync_flags = datasync ? 1 : 0;
req->in.h.opcode = isdir ? FUSE_FSYNCDIR : FUSE_FSYNC;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
if (isdir)
fc->no_fsyncdir = 1;
else
fc->no_fsync = 1;
err = 0;
}
return err;
}
| DoS Overflow | 0 | int fuse_fsync_common(struct file *file, int datasync, int isdir)
{
struct inode *inode = file->f_mapping->host;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_req *req;
struct fuse_fsync_in inarg;
int err;
if (is_bad_inode(inode))
return -EIO;
if ((!isdir && fc->no_fsync) || (isdir && fc->no_fsyncdir))
return 0;
/*
* Start writeback against all dirty pages of the inode, then
* wait for all outstanding writes, before sending the FSYNC
* request.
*/
err = write_inode_now(inode, 0);
if (err)
return err;
fuse_sync_writes(inode);
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
memset(&inarg, 0, sizeof(inarg));
inarg.fh = ff->fh;
inarg.fsync_flags = datasync ? 1 : 0;
req->in.h.opcode = isdir ? FUSE_FSYNCDIR : FUSE_FSYNC;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
if (isdir)
fc->no_fsyncdir = 1;
else
fc->no_fsync = 1;
err = 0;
}
return err;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,293 | static int fuse_getlk(struct file *file, struct file_lock *fl)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
struct fuse_lk_out outarg;
int err;
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
fuse_lk_fill(req, file, fl, FUSE_GETLK, 0, 0);
req->out.numargs = 1;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err)
err = convert_fuse_file_lock(&outarg.lk, fl);
return err;
}
| DoS Overflow | 0 | static int fuse_getlk(struct file *file, struct file_lock *fl)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
struct fuse_lk_out outarg;
int err;
req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);
fuse_lk_fill(req, file, fl, FUSE_GETLK, 0, 0);
req->out.numargs = 1;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err)
err = convert_fuse_file_lock(&outarg.lk, fl);
return err;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,294 | void fuse_init_file_inode(struct inode *inode)
{
inode->i_fop = &fuse_file_operations;
inode->i_data.a_ops = &fuse_file_aops;
}
| DoS Overflow | 0 | void fuse_init_file_inode(struct inode *inode)
{
inode->i_fop = &fuse_file_operations;
inode->i_data.a_ops = &fuse_file_aops;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,295 | static int fuse_ioctl_copy_user(struct page **pages, struct iovec *iov,
unsigned int nr_segs, size_t bytes, bool to_user)
{
struct iov_iter ii;
int page_idx = 0;
if (!bytes)
return 0;
iov_iter_init(&ii, iov, nr_segs, bytes, 0);
while (iov_iter_count(&ii)) {
struct page *page = pages[page_idx++];
size_t todo = min_t(size_t, PAGE_SIZE, iov_iter_count(&ii));
void *kaddr;
kaddr = kmap(page);
while (todo) {
char __user *uaddr = ii.iov->iov_base + ii.iov_offset;
size_t iov_len = ii.iov->iov_len - ii.iov_offset;
size_t copy = min(todo, iov_len);
size_t left;
if (!to_user)
left = copy_from_user(kaddr, uaddr, copy);
else
left = copy_to_user(uaddr, kaddr, copy);
if (unlikely(left))
return -EFAULT;
iov_iter_advance(&ii, copy);
todo -= copy;
kaddr += copy;
}
kunmap(page);
}
return 0;
}
| DoS Overflow | 0 | static int fuse_ioctl_copy_user(struct page **pages, struct iovec *iov,
unsigned int nr_segs, size_t bytes, bool to_user)
{
struct iov_iter ii;
int page_idx = 0;
if (!bytes)
return 0;
iov_iter_init(&ii, iov, nr_segs, bytes, 0);
while (iov_iter_count(&ii)) {
struct page *page = pages[page_idx++];
size_t todo = min_t(size_t, PAGE_SIZE, iov_iter_count(&ii));
void *kaddr;
kaddr = kmap(page);
while (todo) {
char __user *uaddr = ii.iov->iov_base + ii.iov_offset;
size_t iov_len = ii.iov->iov_len - ii.iov_offset;
size_t copy = min(todo, iov_len);
size_t left;
if (!to_user)
left = copy_from_user(kaddr, uaddr, copy);
else
left = copy_to_user(uaddr, kaddr, copy);
if (unlikely(left))
return -EFAULT;
iov_iter_advance(&ii, copy);
todo -= copy;
kaddr += copy;
}
kunmap(page);
}
return 0;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,296 | static void fuse_lk_fill(struct fuse_req *req, struct file *file,
const struct file_lock *fl, int opcode, pid_t pid,
int flock)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_lk_in *arg = &req->misc.lk_in;
arg->fh = ff->fh;
arg->owner = fuse_lock_owner_id(fc, fl->fl_owner);
arg->lk.start = fl->fl_start;
arg->lk.end = fl->fl_end;
arg->lk.type = fl->fl_type;
arg->lk.pid = pid;
if (flock)
arg->lk_flags |= FUSE_LK_FLOCK;
req->in.h.opcode = opcode;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(*arg);
req->in.args[0].value = arg;
}
| DoS Overflow | 0 | static void fuse_lk_fill(struct fuse_req *req, struct file *file,
const struct file_lock *fl, int opcode, pid_t pid,
int flock)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_lk_in *arg = &req->misc.lk_in;
arg->fh = ff->fh;
arg->owner = fuse_lock_owner_id(fc, fl->fl_owner);
arg->lk.start = fl->fl_start;
arg->lk.end = fl->fl_end;
arg->lk.type = fl->fl_type;
arg->lk.pid = pid;
if (flock)
arg->lk_flags |= FUSE_LK_FLOCK;
req->in.h.opcode = opcode;
req->in.h.nodeid = get_node_id(inode);
req->in.numargs = 1;
req->in.args[0].size = sizeof(*arg);
req->in.args[0].value = arg;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,297 | u64 fuse_lock_owner_id(struct fuse_conn *fc, fl_owner_t id)
{
u32 *k = fc->scramble_key;
u64 v = (unsigned long) id;
u32 v0 = v;
u32 v1 = v >> 32;
u32 sum = 0;
int i;
for (i = 0; i < 32; i++) {
v0 += ((v1 << 4 ^ v1 >> 5) + v1) ^ (sum + k[sum & 3]);
sum += 0x9E3779B9;
v1 += ((v0 << 4 ^ v0 >> 5) + v0) ^ (sum + k[sum>>11 & 3]);
}
return (u64) v0 + ((u64) v1 << 32);
}
| DoS Overflow | 0 | u64 fuse_lock_owner_id(struct fuse_conn *fc, fl_owner_t id)
{
u32 *k = fc->scramble_key;
u64 v = (unsigned long) id;
u32 v0 = v;
u32 v1 = v >> 32;
u32 sum = 0;
int i;
for (i = 0; i < 32; i++) {
v0 += ((v1 << 4 ^ v1 >> 5) + v1) ^ (sum + k[sum & 3]);
sum += 0x9E3779B9;
v1 += ((v0 << 4 ^ v0 >> 5) + v0) ^ (sum + k[sum>>11 & 3]);
}
return (u64) v0 + ((u64) v1 << 32);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,298 | int fuse_notify_poll_wakeup(struct fuse_conn *fc,
struct fuse_notify_poll_wakeup_out *outarg)
{
u64 kh = outarg->kh;
struct rb_node **link;
spin_lock(&fc->lock);
link = fuse_find_polled_node(fc, kh, NULL);
if (*link) {
struct fuse_file *ff;
ff = rb_entry(*link, struct fuse_file, polled_node);
wake_up_interruptible_sync(&ff->poll_wait);
}
spin_unlock(&fc->lock);
return 0;
}
| DoS Overflow | 0 | int fuse_notify_poll_wakeup(struct fuse_conn *fc,
struct fuse_notify_poll_wakeup_out *outarg)
{
u64 kh = outarg->kh;
struct rb_node **link;
spin_lock(&fc->lock);
link = fuse_find_polled_node(fc, kh, NULL);
if (*link) {
struct fuse_file *ff;
ff = rb_entry(*link, struct fuse_file, polled_node);
wake_up_interruptible_sync(&ff->poll_wait);
}
spin_unlock(&fc->lock);
return 0;
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
22,299 | static int fuse_open(struct inode *inode, struct file *file)
{
return fuse_open_common(inode, file, false);
}
| DoS Overflow | 0 | static int fuse_open(struct inode *inode, struct file *file)
{
return fuse_open_common(inode, file, false);
}
| @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src,
return 0;
}
+/* Make sure iov_length() won't overflow */
+static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count)
+{
+ size_t n;
+ u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT;
+
+ for (n = 0; n < count; n++) {
+ if (iov->iov_len > (size_t) max)
+ return -ENOMEM;
+ max -= iov->iov_len;
+ }
+ return 0;
+}
+
/*
* For ioctls, there is no generic way to determine how much memory
* needs to be read and/or written. Furthermore, ioctls are allowed
@@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
+ err = fuse_verify_ioctl_iov(in_iov, in_iovs);
+ if (err)
+ goto out;
+
+ err = fuse_verify_ioctl_iov(out_iov, out_iovs);
+ if (err)
+ goto out;
+
goto retry;
}
| CWE-119 | null | null |
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