idx int64 | func_before string | Vulnerability Classification string | vul int64 | func_after string | patch string | CWE ID string | lines_before string | lines_after string |
|---|---|---|---|---|---|---|---|---|
15,400 | static int netlink_getname(struct socket *sock, struct sockaddr *addr,
int *addr_len, int peer)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_nl *, nladdr, addr);
nladdr->nl_family = AF_NETLINK;
nladdr->nl_pad = 0;
*addr_len = sizeof(*nladdr);
if (peer) {
nladdr->nl_pid = nlk->dst_pid;
nladdr->nl_groups = netlink_group_mask(nlk->dst_group);
} else {
nladdr->nl_pid = nlk->pid;
nladdr->nl_groups = nlk->groups ? nlk->groups[0] : 0;
}
return 0;
}
| null | 0 | static int netlink_getname(struct socket *sock, struct sockaddr *addr,
int *addr_len, int peer)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_nl *, nladdr, addr);
nladdr->nl_family = AF_NETLINK;
nladdr->nl_pad = 0;
*addr_len = sizeof(*nladdr);
if (peer) {
nladdr->nl_pid = nlk->dst_pid;
nladdr->nl_groups = netlink_group_mask(nlk->dst_group);
} else {
nladdr->nl_pid = nlk->pid;
nladdr->nl_groups = nlk->groups ? nlk->groups[0] : 0;
}
return 0;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,401 | static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid)
{
struct sock *sock;
struct netlink_sock *nlk;
sock = netlink_lookup(sock_net(ssk), ssk->sk_protocol, pid);
if (!sock)
return ERR_PTR(-ECONNREFUSED);
/* Don't bother queuing skb if kernel socket has no input function */
nlk = nlk_sk(sock);
if (sock->sk_state == NETLINK_CONNECTED &&
nlk->dst_pid != nlk_sk(ssk)->pid) {
sock_put(sock);
return ERR_PTR(-ECONNREFUSED);
}
return sock;
}
| null | 0 | static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid)
{
struct sock *sock;
struct netlink_sock *nlk;
sock = netlink_lookup(sock_net(ssk), ssk->sk_protocol, pid);
if (!sock)
return ERR_PTR(-ECONNREFUSED);
/* Don't bother queuing skb if kernel socket has no input function */
nlk = nlk_sk(sock);
if (sock->sk_state == NETLINK_CONNECTED &&
nlk->dst_pid != nlk_sk(ssk)->pid) {
sock_put(sock);
return ERR_PTR(-ECONNREFUSED);
}
return sock;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,402 | static int netlink_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
int len, val, err;
if (level != SOL_NETLINK)
return -ENOPROTOOPT;
if (get_user(len, optlen))
return -EFAULT;
if (len < 0)
return -EINVAL;
switch (optname) {
case NETLINK_PKTINFO:
if (len < sizeof(int))
return -EINVAL;
len = sizeof(int);
val = nlk->flags & NETLINK_RECV_PKTINFO ? 1 : 0;
if (put_user(len, optlen) ||
put_user(val, optval))
return -EFAULT;
err = 0;
break;
case NETLINK_BROADCAST_ERROR:
if (len < sizeof(int))
return -EINVAL;
len = sizeof(int);
val = nlk->flags & NETLINK_BROADCAST_SEND_ERROR ? 1 : 0;
if (put_user(len, optlen) ||
put_user(val, optval))
return -EFAULT;
err = 0;
break;
case NETLINK_NO_ENOBUFS:
if (len < sizeof(int))
return -EINVAL;
len = sizeof(int);
val = nlk->flags & NETLINK_RECV_NO_ENOBUFS ? 1 : 0;
if (put_user(len, optlen) ||
put_user(val, optval))
return -EFAULT;
err = 0;
break;
default:
err = -ENOPROTOOPT;
}
return err;
}
| null | 0 | static int netlink_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
int len, val, err;
if (level != SOL_NETLINK)
return -ENOPROTOOPT;
if (get_user(len, optlen))
return -EFAULT;
if (len < 0)
return -EINVAL;
switch (optname) {
case NETLINK_PKTINFO:
if (len < sizeof(int))
return -EINVAL;
len = sizeof(int);
val = nlk->flags & NETLINK_RECV_PKTINFO ? 1 : 0;
if (put_user(len, optlen) ||
put_user(val, optval))
return -EFAULT;
err = 0;
break;
case NETLINK_BROADCAST_ERROR:
if (len < sizeof(int))
return -EINVAL;
len = sizeof(int);
val = nlk->flags & NETLINK_BROADCAST_SEND_ERROR ? 1 : 0;
if (put_user(len, optlen) ||
put_user(val, optval))
return -EFAULT;
err = 0;
break;
case NETLINK_NO_ENOBUFS:
if (len < sizeof(int))
return -EINVAL;
len = sizeof(int);
val = nlk->flags & NETLINK_RECV_NO_ENOBUFS ? 1 : 0;
if (put_user(len, optlen) ||
put_user(val, optval))
return -EFAULT;
err = 0;
break;
default:
err = -ENOPROTOOPT;
}
return err;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,403 | static inline u32 netlink_group_mask(u32 group)
{
return group ? 1 << (group - 1) : 0;
}
| null | 0 | static inline u32 netlink_group_mask(u32 group)
{
return group ? 1 << (group - 1) : 0;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,404 | int netlink_has_listeners(struct sock *sk, unsigned int group)
{
int res = 0;
struct listeners *listeners;
BUG_ON(!netlink_is_kernel(sk));
rcu_read_lock();
listeners = rcu_dereference(nl_table[sk->sk_protocol].listeners);
if (group - 1 < nl_table[sk->sk_protocol].groups)
res = test_bit(group - 1, listeners->masks);
rcu_read_unlock();
return res;
}
| null | 0 | int netlink_has_listeners(struct sock *sk, unsigned int group)
{
int res = 0;
struct listeners *listeners;
BUG_ON(!netlink_is_kernel(sk));
rcu_read_lock();
listeners = rcu_dereference(nl_table[sk->sk_protocol].listeners);
if (group - 1 < nl_table[sk->sk_protocol].groups)
res = test_bit(group - 1, listeners->masks);
rcu_read_unlock();
return res;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,405 | static int netlink_insert(struct sock *sk, struct net *net, u32 pid)
{
struct nl_pid_hash *hash = &nl_table[sk->sk_protocol].hash;
struct hlist_head *head;
int err = -EADDRINUSE;
struct sock *osk;
struct hlist_node *node;
int len;
netlink_table_grab();
head = nl_pid_hashfn(hash, pid);
len = 0;
sk_for_each(osk, node, head) {
if (net_eq(sock_net(osk), net) && (nlk_sk(osk)->pid == pid))
break;
len++;
}
if (node)
goto err;
err = -EBUSY;
if (nlk_sk(sk)->pid)
goto err;
err = -ENOMEM;
if (BITS_PER_LONG > 32 && unlikely(hash->entries >= UINT_MAX))
goto err;
if (len && nl_pid_hash_dilute(hash, len))
head = nl_pid_hashfn(hash, pid);
hash->entries++;
nlk_sk(sk)->pid = pid;
sk_add_node(sk, head);
err = 0;
err:
netlink_table_ungrab();
return err;
}
| null | 0 | static int netlink_insert(struct sock *sk, struct net *net, u32 pid)
{
struct nl_pid_hash *hash = &nl_table[sk->sk_protocol].hash;
struct hlist_head *head;
int err = -EADDRINUSE;
struct sock *osk;
struct hlist_node *node;
int len;
netlink_table_grab();
head = nl_pid_hashfn(hash, pid);
len = 0;
sk_for_each(osk, node, head) {
if (net_eq(sock_net(osk), net) && (nlk_sk(osk)->pid == pid))
break;
len++;
}
if (node)
goto err;
err = -EBUSY;
if (nlk_sk(sk)->pid)
goto err;
err = -ENOMEM;
if (BITS_PER_LONG > 32 && unlikely(hash->entries >= UINT_MAX))
goto err;
if (len && nl_pid_hash_dilute(hash, len))
head = nl_pid_hashfn(hash, pid);
hash->entries++;
nlk_sk(sk)->pid = pid;
sk_add_node(sk, head);
err = 0;
err:
netlink_table_ungrab();
return err;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,406 | netlink_kernel_release(struct sock *sk)
{
sk_release_kernel(sk);
}
| null | 0 | netlink_kernel_release(struct sock *sk)
{
sk_release_kernel(sk);
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,407 | netlink_lock_table(void)
{
/* read_lock() synchronizes us to netlink_table_grab */
read_lock(&nl_table_lock);
atomic_inc(&nl_table_users);
read_unlock(&nl_table_lock);
}
| null | 0 | netlink_lock_table(void)
{
/* read_lock() synchronizes us to netlink_table_grab */
read_lock(&nl_table_lock);
atomic_inc(&nl_table_users);
read_unlock(&nl_table_lock);
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,408 | static struct sock *netlink_lookup(struct net *net, int protocol, u32 pid)
{
struct nl_pid_hash *hash = &nl_table[protocol].hash;
struct hlist_head *head;
struct sock *sk;
struct hlist_node *node;
read_lock(&nl_table_lock);
head = nl_pid_hashfn(hash, pid);
sk_for_each(sk, node, head) {
if (net_eq(sock_net(sk), net) && (nlk_sk(sk)->pid == pid)) {
sock_hold(sk);
goto found;
}
}
sk = NULL;
found:
read_unlock(&nl_table_lock);
return sk;
}
| null | 0 | static struct sock *netlink_lookup(struct net *net, int protocol, u32 pid)
{
struct nl_pid_hash *hash = &nl_table[protocol].hash;
struct hlist_head *head;
struct sock *sk;
struct hlist_node *node;
read_lock(&nl_table_lock);
head = nl_pid_hashfn(hash, pid);
sk_for_each(sk, node, head) {
if (net_eq(sock_net(sk), net) && (nlk_sk(sk)->pid == pid)) {
sock_hold(sk);
goto found;
}
}
sk = NULL;
found:
read_unlock(&nl_table_lock);
return sk;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,409 | static void __net_exit netlink_net_exit(struct net *net)
{
#ifdef CONFIG_PROC_FS
proc_net_remove(net, "netlink");
#endif
}
| null | 0 | static void __net_exit netlink_net_exit(struct net *net)
{
#ifdef CONFIG_PROC_FS
proc_net_remove(net, "netlink");
#endif
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,410 | static int __net_init netlink_net_init(struct net *net)
{
#ifdef CONFIG_PROC_FS
if (!proc_net_fops_create(net, "netlink", 0, &netlink_seq_fops))
return -ENOMEM;
#endif
return 0;
}
| null | 0 | static int __net_init netlink_net_init(struct net *net)
{
#ifdef CONFIG_PROC_FS
if (!proc_net_fops_create(net, "netlink", 0, &netlink_seq_fops))
return -ENOMEM;
#endif
return 0;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,411 | static int __init netlink_proto_init(void)
{
struct sk_buff *dummy_skb;
int i;
unsigned long limit;
unsigned int order;
int err = proto_register(&netlink_proto, 0);
if (err != 0)
goto out;
BUILD_BUG_ON(sizeof(struct netlink_skb_parms) > sizeof(dummy_skb->cb));
nl_table = kcalloc(MAX_LINKS, sizeof(*nl_table), GFP_KERNEL);
if (!nl_table)
goto panic;
if (totalram_pages >= (128 * 1024))
limit = totalram_pages >> (21 - PAGE_SHIFT);
else
limit = totalram_pages >> (23 - PAGE_SHIFT);
order = get_bitmask_order(limit) - 1 + PAGE_SHIFT;
limit = (1UL << order) / sizeof(struct hlist_head);
order = get_bitmask_order(min(limit, (unsigned long)UINT_MAX)) - 1;
for (i = 0; i < MAX_LINKS; i++) {
struct nl_pid_hash *hash = &nl_table[i].hash;
hash->table = nl_pid_hash_zalloc(1 * sizeof(*hash->table));
if (!hash->table) {
while (i-- > 0)
nl_pid_hash_free(nl_table[i].hash.table,
1 * sizeof(*hash->table));
kfree(nl_table);
goto panic;
}
hash->max_shift = order;
hash->shift = 0;
hash->mask = 0;
hash->rehash_time = jiffies;
}
netlink_add_usersock_entry();
sock_register(&netlink_family_ops);
register_pernet_subsys(&netlink_net_ops);
/* The netlink device handler may be needed early. */
rtnetlink_init();
out:
return err;
panic:
panic("netlink_init: Cannot allocate nl_table\n");
}
| null | 0 | static int __init netlink_proto_init(void)
{
struct sk_buff *dummy_skb;
int i;
unsigned long limit;
unsigned int order;
int err = proto_register(&netlink_proto, 0);
if (err != 0)
goto out;
BUILD_BUG_ON(sizeof(struct netlink_skb_parms) > sizeof(dummy_skb->cb));
nl_table = kcalloc(MAX_LINKS, sizeof(*nl_table), GFP_KERNEL);
if (!nl_table)
goto panic;
if (totalram_pages >= (128 * 1024))
limit = totalram_pages >> (21 - PAGE_SHIFT);
else
limit = totalram_pages >> (23 - PAGE_SHIFT);
order = get_bitmask_order(limit) - 1 + PAGE_SHIFT;
limit = (1UL << order) / sizeof(struct hlist_head);
order = get_bitmask_order(min(limit, (unsigned long)UINT_MAX)) - 1;
for (i = 0; i < MAX_LINKS; i++) {
struct nl_pid_hash *hash = &nl_table[i].hash;
hash->table = nl_pid_hash_zalloc(1 * sizeof(*hash->table));
if (!hash->table) {
while (i-- > 0)
nl_pid_hash_free(nl_table[i].hash.table,
1 * sizeof(*hash->table));
kfree(nl_table);
goto panic;
}
hash->max_shift = order;
hash->shift = 0;
hash->mask = 0;
hash->rehash_time = jiffies;
}
netlink_add_usersock_entry();
sock_register(&netlink_family_ops);
register_pernet_subsys(&netlink_net_ops);
/* The netlink device handler may be needed early. */
rtnetlink_init();
out:
return err;
panic:
panic("netlink_init: Cannot allocate nl_table\n");
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,412 | static void netlink_rcv_wake(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
if (skb_queue_empty(&sk->sk_receive_queue))
clear_bit(0, &nlk->state);
if (!test_bit(0, &nlk->state))
wake_up_interruptible(&nlk->wait);
}
| null | 0 | static void netlink_rcv_wake(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
if (skb_queue_empty(&sk->sk_receive_queue))
clear_bit(0, &nlk->state);
if (!test_bit(0, &nlk->state))
wake_up_interruptible(&nlk->wait);
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,413 | static int netlink_realloc_groups(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
unsigned int groups;
unsigned long *new_groups;
int err = 0;
netlink_table_grab();
groups = nl_table[sk->sk_protocol].groups;
if (!nl_table[sk->sk_protocol].registered) {
err = -ENOENT;
goto out_unlock;
}
if (nlk->ngroups >= groups)
goto out_unlock;
new_groups = krealloc(nlk->groups, NLGRPSZ(groups), GFP_ATOMIC);
if (new_groups == NULL) {
err = -ENOMEM;
goto out_unlock;
}
memset((char *)new_groups + NLGRPSZ(nlk->ngroups), 0,
NLGRPSZ(groups) - NLGRPSZ(nlk->ngroups));
nlk->groups = new_groups;
nlk->ngroups = groups;
out_unlock:
netlink_table_ungrab();
return err;
}
| null | 0 | static int netlink_realloc_groups(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
unsigned int groups;
unsigned long *new_groups;
int err = 0;
netlink_table_grab();
groups = nl_table[sk->sk_protocol].groups;
if (!nl_table[sk->sk_protocol].registered) {
err = -ENOENT;
goto out_unlock;
}
if (nlk->ngroups >= groups)
goto out_unlock;
new_groups = krealloc(nlk->groups, NLGRPSZ(groups), GFP_ATOMIC);
if (new_groups == NULL) {
err = -ENOMEM;
goto out_unlock;
}
memset((char *)new_groups + NLGRPSZ(nlk->ngroups), 0,
NLGRPSZ(groups) - NLGRPSZ(nlk->ngroups));
nlk->groups = new_groups;
nlk->ngroups = groups;
out_unlock:
netlink_table_ungrab();
return err;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,414 | static int netlink_recvmsg(struct kiocb *kiocb, struct socket *sock,
struct msghdr *msg, size_t len,
int flags)
{
struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct scm_cookie scm;
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
int noblock = flags&MSG_DONTWAIT;
size_t copied;
struct sk_buff *skb, *data_skb;
int err, ret;
if (flags&MSG_OOB)
return -EOPNOTSUPP;
copied = 0;
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (skb == NULL)
goto out;
data_skb = skb;
#ifdef CONFIG_COMPAT_NETLINK_MESSAGES
if (unlikely(skb_shinfo(skb)->frag_list)) {
/*
* If this skb has a frag_list, then here that means that we
* will have to use the frag_list skb's data for compat tasks
* and the regular skb's data for normal (non-compat) tasks.
*
* If we need to send the compat skb, assign it to the
* 'data_skb' variable so that it will be used below for data
* copying. We keep 'skb' for everything else, including
* freeing both later.
*/
if (flags & MSG_CMSG_COMPAT)
data_skb = skb_shinfo(skb)->frag_list;
}
#endif
msg->msg_namelen = 0;
copied = data_skb->len;
if (len < copied) {
msg->msg_flags |= MSG_TRUNC;
copied = len;
}
skb_reset_transport_header(data_skb);
err = skb_copy_datagram_iovec(data_skb, 0, msg->msg_iov, copied);
if (msg->msg_name) {
struct sockaddr_nl *addr = (struct sockaddr_nl *)msg->msg_name;
addr->nl_family = AF_NETLINK;
addr->nl_pad = 0;
addr->nl_pid = NETLINK_CB(skb).pid;
addr->nl_groups = netlink_group_mask(NETLINK_CB(skb).dst_group);
msg->msg_namelen = sizeof(*addr);
}
if (nlk->flags & NETLINK_RECV_PKTINFO)
netlink_cmsg_recv_pktinfo(msg, skb);
if (NULL == siocb->scm) {
memset(&scm, 0, sizeof(scm));
siocb->scm = &scm;
}
siocb->scm->creds = *NETLINK_CREDS(skb);
if (flags & MSG_TRUNC)
copied = data_skb->len;
skb_free_datagram(sk, skb);
if (nlk->cb && atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf / 2) {
ret = netlink_dump(sk);
if (ret) {
sk->sk_err = ret;
sk->sk_error_report(sk);
}
}
scm_recv(sock, msg, siocb->scm, flags);
out:
netlink_rcv_wake(sk);
return err ? : copied;
}
| null | 0 | static int netlink_recvmsg(struct kiocb *kiocb, struct socket *sock,
struct msghdr *msg, size_t len,
int flags)
{
struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct scm_cookie scm;
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
int noblock = flags&MSG_DONTWAIT;
size_t copied;
struct sk_buff *skb, *data_skb;
int err, ret;
if (flags&MSG_OOB)
return -EOPNOTSUPP;
copied = 0;
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (skb == NULL)
goto out;
data_skb = skb;
#ifdef CONFIG_COMPAT_NETLINK_MESSAGES
if (unlikely(skb_shinfo(skb)->frag_list)) {
/*
* If this skb has a frag_list, then here that means that we
* will have to use the frag_list skb's data for compat tasks
* and the regular skb's data for normal (non-compat) tasks.
*
* If we need to send the compat skb, assign it to the
* 'data_skb' variable so that it will be used below for data
* copying. We keep 'skb' for everything else, including
* freeing both later.
*/
if (flags & MSG_CMSG_COMPAT)
data_skb = skb_shinfo(skb)->frag_list;
}
#endif
msg->msg_namelen = 0;
copied = data_skb->len;
if (len < copied) {
msg->msg_flags |= MSG_TRUNC;
copied = len;
}
skb_reset_transport_header(data_skb);
err = skb_copy_datagram_iovec(data_skb, 0, msg->msg_iov, copied);
if (msg->msg_name) {
struct sockaddr_nl *addr = (struct sockaddr_nl *)msg->msg_name;
addr->nl_family = AF_NETLINK;
addr->nl_pad = 0;
addr->nl_pid = NETLINK_CB(skb).pid;
addr->nl_groups = netlink_group_mask(NETLINK_CB(skb).dst_group);
msg->msg_namelen = sizeof(*addr);
}
if (nlk->flags & NETLINK_RECV_PKTINFO)
netlink_cmsg_recv_pktinfo(msg, skb);
if (NULL == siocb->scm) {
memset(&scm, 0, sizeof(scm));
siocb->scm = &scm;
}
siocb->scm->creds = *NETLINK_CREDS(skb);
if (flags & MSG_TRUNC)
copied = data_skb->len;
skb_free_datagram(sk, skb);
if (nlk->cb && atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf / 2) {
ret = netlink_dump(sk);
if (ret) {
sk->sk_err = ret;
sk->sk_error_report(sk);
}
}
scm_recv(sock, msg, siocb->scm, flags);
out:
netlink_rcv_wake(sk);
return err ? : copied;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,415 | static int netlink_release(struct socket *sock)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk;
if (!sk)
return 0;
netlink_remove(sk);
sock_orphan(sk);
nlk = nlk_sk(sk);
/*
* OK. Socket is unlinked, any packets that arrive now
* will be purged.
*/
sock->sk = NULL;
wake_up_interruptible_all(&nlk->wait);
skb_queue_purge(&sk->sk_write_queue);
if (nlk->pid) {
struct netlink_notify n = {
.net = sock_net(sk),
.protocol = sk->sk_protocol,
.pid = nlk->pid,
};
atomic_notifier_call_chain(&netlink_chain,
NETLINK_URELEASE, &n);
}
module_put(nlk->module);
netlink_table_grab();
if (netlink_is_kernel(sk)) {
BUG_ON(nl_table[sk->sk_protocol].registered == 0);
if (--nl_table[sk->sk_protocol].registered == 0) {
kfree(nl_table[sk->sk_protocol].listeners);
nl_table[sk->sk_protocol].module = NULL;
nl_table[sk->sk_protocol].registered = 0;
}
} else if (nlk->subscriptions) {
netlink_update_listeners(sk);
}
netlink_table_ungrab();
kfree(nlk->groups);
nlk->groups = NULL;
local_bh_disable();
sock_prot_inuse_add(sock_net(sk), &netlink_proto, -1);
local_bh_enable();
sock_put(sk);
return 0;
}
| null | 0 | static int netlink_release(struct socket *sock)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk;
if (!sk)
return 0;
netlink_remove(sk);
sock_orphan(sk);
nlk = nlk_sk(sk);
/*
* OK. Socket is unlinked, any packets that arrive now
* will be purged.
*/
sock->sk = NULL;
wake_up_interruptible_all(&nlk->wait);
skb_queue_purge(&sk->sk_write_queue);
if (nlk->pid) {
struct netlink_notify n = {
.net = sock_net(sk),
.protocol = sk->sk_protocol,
.pid = nlk->pid,
};
atomic_notifier_call_chain(&netlink_chain,
NETLINK_URELEASE, &n);
}
module_put(nlk->module);
netlink_table_grab();
if (netlink_is_kernel(sk)) {
BUG_ON(nl_table[sk->sk_protocol].registered == 0);
if (--nl_table[sk->sk_protocol].registered == 0) {
kfree(nl_table[sk->sk_protocol].listeners);
nl_table[sk->sk_protocol].module = NULL;
nl_table[sk->sk_protocol].registered = 0;
}
} else if (nlk->subscriptions) {
netlink_update_listeners(sk);
}
netlink_table_ungrab();
kfree(nlk->groups);
nlk->groups = NULL;
local_bh_disable();
sock_prot_inuse_add(sock_net(sk), &netlink_proto, -1);
local_bh_enable();
sock_put(sk);
return 0;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,416 | int netlink_sendskb(struct sock *sk, struct sk_buff *skb)
{
int len = __netlink_sendskb(sk, skb);
sock_put(sk);
return len;
}
| null | 0 | int netlink_sendskb(struct sock *sk, struct sk_buff *skb)
{
int len = __netlink_sendskb(sk, skb);
sock_put(sk);
return len;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,417 | static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct sock *s;
struct nl_seq_iter *iter;
int i, j;
++*pos;
if (v == SEQ_START_TOKEN)
return netlink_seq_socket_idx(seq, 0);
iter = seq->private;
s = v;
do {
s = sk_next(s);
} while (s && sock_net(s) != seq_file_net(seq));
if (s)
return s;
i = iter->link;
j = iter->hash_idx + 1;
do {
struct nl_pid_hash *hash = &nl_table[i].hash;
for (; j <= hash->mask; j++) {
s = sk_head(&hash->table[j]);
while (s && sock_net(s) != seq_file_net(seq))
s = sk_next(s);
if (s) {
iter->link = i;
iter->hash_idx = j;
return s;
}
}
j = 0;
} while (++i < MAX_LINKS);
return NULL;
}
| null | 0 | static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct sock *s;
struct nl_seq_iter *iter;
int i, j;
++*pos;
if (v == SEQ_START_TOKEN)
return netlink_seq_socket_idx(seq, 0);
iter = seq->private;
s = v;
do {
s = sk_next(s);
} while (s && sock_net(s) != seq_file_net(seq));
if (s)
return s;
i = iter->link;
j = iter->hash_idx + 1;
do {
struct nl_pid_hash *hash = &nl_table[i].hash;
for (; j <= hash->mask; j++) {
s = sk_head(&hash->table[j]);
while (s && sock_net(s) != seq_file_net(seq))
s = sk_next(s);
if (s) {
iter->link = i;
iter->hash_idx = j;
return s;
}
}
j = 0;
} while (++i < MAX_LINKS);
return NULL;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,418 | static int netlink_seq_open(struct inode *inode, struct file *file)
{
return seq_open_net(inode, file, &netlink_seq_ops,
sizeof(struct nl_seq_iter));
}
| null | 0 | static int netlink_seq_open(struct inode *inode, struct file *file)
{
return seq_open_net(inode, file, &netlink_seq_ops,
sizeof(struct nl_seq_iter));
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,419 | static struct sock *netlink_seq_socket_idx(struct seq_file *seq, loff_t pos)
{
struct nl_seq_iter *iter = seq->private;
int i, j;
struct sock *s;
struct hlist_node *node;
loff_t off = 0;
for (i = 0; i < MAX_LINKS; i++) {
struct nl_pid_hash *hash = &nl_table[i].hash;
for (j = 0; j <= hash->mask; j++) {
sk_for_each(s, node, &hash->table[j]) {
if (sock_net(s) != seq_file_net(seq))
continue;
if (off == pos) {
iter->link = i;
iter->hash_idx = j;
return s;
}
++off;
}
}
}
return NULL;
}
| null | 0 | static struct sock *netlink_seq_socket_idx(struct seq_file *seq, loff_t pos)
{
struct nl_seq_iter *iter = seq->private;
int i, j;
struct sock *s;
struct hlist_node *node;
loff_t off = 0;
for (i = 0; i < MAX_LINKS; i++) {
struct nl_pid_hash *hash = &nl_table[i].hash;
for (j = 0; j <= hash->mask; j++) {
sk_for_each(s, node, &hash->table[j]) {
if (sock_net(s) != seq_file_net(seq))
continue;
if (off == pos) {
iter->link = i;
iter->hash_idx = j;
return s;
}
++off;
}
}
}
return NULL;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,420 | static int netlink_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
unsigned int val = 0;
int err;
if (level != SOL_NETLINK)
return -ENOPROTOOPT;
if (optlen >= sizeof(int) &&
get_user(val, (unsigned int __user *)optval))
return -EFAULT;
switch (optname) {
case NETLINK_PKTINFO:
if (val)
nlk->flags |= NETLINK_RECV_PKTINFO;
else
nlk->flags &= ~NETLINK_RECV_PKTINFO;
err = 0;
break;
case NETLINK_ADD_MEMBERSHIP:
case NETLINK_DROP_MEMBERSHIP: {
if (!netlink_capable(sock, NL_NONROOT_RECV))
return -EPERM;
err = netlink_realloc_groups(sk);
if (err)
return err;
if (!val || val - 1 >= nlk->ngroups)
return -EINVAL;
netlink_table_grab();
netlink_update_socket_mc(nlk, val,
optname == NETLINK_ADD_MEMBERSHIP);
netlink_table_ungrab();
if (nlk->netlink_bind)
nlk->netlink_bind(val);
err = 0;
break;
}
case NETLINK_BROADCAST_ERROR:
if (val)
nlk->flags |= NETLINK_BROADCAST_SEND_ERROR;
else
nlk->flags &= ~NETLINK_BROADCAST_SEND_ERROR;
err = 0;
break;
case NETLINK_NO_ENOBUFS:
if (val) {
nlk->flags |= NETLINK_RECV_NO_ENOBUFS;
clear_bit(0, &nlk->state);
wake_up_interruptible(&nlk->wait);
} else {
nlk->flags &= ~NETLINK_RECV_NO_ENOBUFS;
}
err = 0;
break;
default:
err = -ENOPROTOOPT;
}
return err;
}
| null | 0 | static int netlink_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
unsigned int val = 0;
int err;
if (level != SOL_NETLINK)
return -ENOPROTOOPT;
if (optlen >= sizeof(int) &&
get_user(val, (unsigned int __user *)optval))
return -EFAULT;
switch (optname) {
case NETLINK_PKTINFO:
if (val)
nlk->flags |= NETLINK_RECV_PKTINFO;
else
nlk->flags &= ~NETLINK_RECV_PKTINFO;
err = 0;
break;
case NETLINK_ADD_MEMBERSHIP:
case NETLINK_DROP_MEMBERSHIP: {
if (!netlink_capable(sock, NL_NONROOT_RECV))
return -EPERM;
err = netlink_realloc_groups(sk);
if (err)
return err;
if (!val || val - 1 >= nlk->ngroups)
return -EINVAL;
netlink_table_grab();
netlink_update_socket_mc(nlk, val,
optname == NETLINK_ADD_MEMBERSHIP);
netlink_table_ungrab();
if (nlk->netlink_bind)
nlk->netlink_bind(val);
err = 0;
break;
}
case NETLINK_BROADCAST_ERROR:
if (val)
nlk->flags |= NETLINK_BROADCAST_SEND_ERROR;
else
nlk->flags &= ~NETLINK_BROADCAST_SEND_ERROR;
err = 0;
break;
case NETLINK_NO_ENOBUFS:
if (val) {
nlk->flags |= NETLINK_RECV_NO_ENOBUFS;
clear_bit(0, &nlk->state);
wake_up_interruptible(&nlk->wait);
} else {
nlk->flags &= ~NETLINK_RECV_NO_ENOBUFS;
}
err = 0;
break;
default:
err = -ENOPROTOOPT;
}
return err;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,421 | static void netlink_sock_destruct(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
if (nlk->cb) {
if (nlk->cb->done)
nlk->cb->done(nlk->cb);
netlink_destroy_callback(nlk->cb);
}
skb_queue_purge(&sk->sk_receive_queue);
if (!sock_flag(sk, SOCK_DEAD)) {
printk(KERN_ERR "Freeing alive netlink socket %p\n", sk);
return;
}
WARN_ON(atomic_read(&sk->sk_rmem_alloc));
WARN_ON(atomic_read(&sk->sk_wmem_alloc));
WARN_ON(nlk_sk(sk)->groups);
}
| null | 0 | static void netlink_sock_destruct(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
if (nlk->cb) {
if (nlk->cb->done)
nlk->cb->done(nlk->cb);
netlink_destroy_callback(nlk->cb);
}
skb_queue_purge(&sk->sk_receive_queue);
if (!sock_flag(sk, SOCK_DEAD)) {
printk(KERN_ERR "Freeing alive netlink socket %p\n", sk);
return;
}
WARN_ON(atomic_read(&sk->sk_rmem_alloc));
WARN_ON(atomic_read(&sk->sk_wmem_alloc));
WARN_ON(nlk_sk(sk)->groups);
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,422 | static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
{
int delta;
skb_orphan(skb);
delta = skb->end - skb->tail;
if (delta * 2 < skb->truesize)
return skb;
if (skb_shared(skb)) {
struct sk_buff *nskb = skb_clone(skb, allocation);
if (!nskb)
return skb;
consume_skb(skb);
skb = nskb;
}
if (!pskb_expand_head(skb, 0, -delta, allocation))
skb->truesize -= delta;
return skb;
}
| null | 0 | static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
{
int delta;
skb_orphan(skb);
delta = skb->end - skb->tail;
if (delta * 2 < skb->truesize)
return skb;
if (skb_shared(skb)) {
struct sk_buff *nskb = skb_clone(skb, allocation);
if (!nskb)
return skb;
consume_skb(skb);
skb = nskb;
}
if (!pskb_expand_head(skb, 0, -delta, allocation))
skb->truesize -= delta;
return skb;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,423 | int netlink_unicast(struct sock *ssk, struct sk_buff *skb,
u32 pid, int nonblock)
{
struct sock *sk;
int err;
long timeo;
skb = netlink_trim(skb, gfp_any());
timeo = sock_sndtimeo(ssk, nonblock);
retry:
sk = netlink_getsockbypid(ssk, pid);
if (IS_ERR(sk)) {
kfree_skb(skb);
return PTR_ERR(sk);
}
if (netlink_is_kernel(sk))
return netlink_unicast_kernel(sk, skb);
if (sk_filter(sk, skb)) {
err = skb->len;
kfree_skb(skb);
sock_put(sk);
return err;
}
err = netlink_attachskb(sk, skb, &timeo, ssk);
if (err == 1)
goto retry;
if (err)
return err;
return netlink_sendskb(sk, skb);
}
| null | 0 | int netlink_unicast(struct sock *ssk, struct sk_buff *skb,
u32 pid, int nonblock)
{
struct sock *sk;
int err;
long timeo;
skb = netlink_trim(skb, gfp_any());
timeo = sock_sndtimeo(ssk, nonblock);
retry:
sk = netlink_getsockbypid(ssk, pid);
if (IS_ERR(sk)) {
kfree_skb(skb);
return PTR_ERR(sk);
}
if (netlink_is_kernel(sk))
return netlink_unicast_kernel(sk, skb);
if (sk_filter(sk, skb)) {
err = skb->len;
kfree_skb(skb);
sock_put(sk);
return err;
}
err = netlink_attachskb(sk, skb, &timeo, ssk);
if (err == 1)
goto retry;
if (err)
return err;
return netlink_sendskb(sk, skb);
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,424 | static int netlink_unicast_kernel(struct sock *sk, struct sk_buff *skb)
{
int ret;
struct netlink_sock *nlk = nlk_sk(sk);
ret = -ECONNREFUSED;
if (nlk->netlink_rcv != NULL) {
ret = skb->len;
skb_set_owner_r(skb, sk);
nlk->netlink_rcv(skb);
consume_skb(skb);
} else {
kfree_skb(skb);
}
sock_put(sk);
return ret;
}
| null | 0 | static int netlink_unicast_kernel(struct sock *sk, struct sk_buff *skb)
{
int ret;
struct netlink_sock *nlk = nlk_sk(sk);
ret = -ECONNREFUSED;
if (nlk->netlink_rcv != NULL) {
ret = skb->len;
skb_set_owner_r(skb, sk);
nlk->netlink_rcv(skb);
consume_skb(skb);
} else {
kfree_skb(skb);
}
sock_put(sk);
return ret;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,425 | netlink_update_listeners(struct sock *sk)
{
struct netlink_table *tbl = &nl_table[sk->sk_protocol];
struct hlist_node *node;
unsigned long mask;
unsigned int i;
for (i = 0; i < NLGRPLONGS(tbl->groups); i++) {
mask = 0;
sk_for_each_bound(sk, node, &tbl->mc_list) {
if (i < NLGRPLONGS(nlk_sk(sk)->ngroups))
mask |= nlk_sk(sk)->groups[i];
}
tbl->listeners->masks[i] = mask;
}
/* this function is only called with the netlink table "grabbed", which
* makes sure updates are visible before bind or setsockopt return. */
}
| null | 0 | netlink_update_listeners(struct sock *sk)
{
struct netlink_table *tbl = &nl_table[sk->sk_protocol];
struct hlist_node *node;
unsigned long mask;
unsigned int i;
for (i = 0; i < NLGRPLONGS(tbl->groups); i++) {
mask = 0;
sk_for_each_bound(sk, node, &tbl->mc_list) {
if (i < NLGRPLONGS(nlk_sk(sk)->ngroups))
mask |= nlk_sk(sk)->groups[i];
}
tbl->listeners->masks[i] = mask;
}
/* this function is only called with the netlink table "grabbed", which
* makes sure updates are visible before bind or setsockopt return. */
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,426 | static void netlink_update_socket_mc(struct netlink_sock *nlk,
unsigned int group,
int is_new)
{
int old, new = !!is_new, subscriptions;
old = test_bit(group - 1, nlk->groups);
subscriptions = nlk->subscriptions - old + new;
if (new)
__set_bit(group - 1, nlk->groups);
else
__clear_bit(group - 1, nlk->groups);
netlink_update_subscriptions(&nlk->sk, subscriptions);
netlink_update_listeners(&nlk->sk);
}
| null | 0 | static void netlink_update_socket_mc(struct netlink_sock *nlk,
unsigned int group,
int is_new)
{
int old, new = !!is_new, subscriptions;
old = test_bit(group - 1, nlk->groups);
subscriptions = nlk->subscriptions - old + new;
if (new)
__set_bit(group - 1, nlk->groups);
else
__clear_bit(group - 1, nlk->groups);
netlink_update_subscriptions(&nlk->sk, subscriptions);
netlink_update_listeners(&nlk->sk);
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,427 | netlink_update_subscriptions(struct sock *sk, unsigned int subscriptions)
{
struct netlink_sock *nlk = nlk_sk(sk);
if (nlk->subscriptions && !subscriptions)
__sk_del_bind_node(sk);
else if (!nlk->subscriptions && subscriptions)
sk_add_bind_node(sk, &nl_table[sk->sk_protocol].mc_list);
nlk->subscriptions = subscriptions;
}
| null | 0 | netlink_update_subscriptions(struct sock *sk, unsigned int subscriptions)
{
struct netlink_sock *nlk = nlk_sk(sk);
if (nlk->subscriptions && !subscriptions)
__sk_del_bind_node(sk);
else if (!nlk->subscriptions && subscriptions)
sk_add_bind_node(sk, &nl_table[sk->sk_protocol].mc_list);
nlk->subscriptions = subscriptions;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,428 | static void nl_pid_hash_free(struct hlist_head *table, size_t size)
{
if (size <= PAGE_SIZE)
kfree(table);
else
free_pages((unsigned long)table, get_order(size));
}
| null | 0 | static void nl_pid_hash_free(struct hlist_head *table, size_t size)
{
if (size <= PAGE_SIZE)
kfree(table);
else
free_pages((unsigned long)table, get_order(size));
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,429 | static int nl_pid_hash_rehash(struct nl_pid_hash *hash, int grow)
{
unsigned int omask, mask, shift;
size_t osize, size;
struct hlist_head *otable, *table;
int i;
omask = mask = hash->mask;
osize = size = (mask + 1) * sizeof(*table);
shift = hash->shift;
if (grow) {
if (++shift > hash->max_shift)
return 0;
mask = mask * 2 + 1;
size *= 2;
}
table = nl_pid_hash_zalloc(size);
if (!table)
return 0;
otable = hash->table;
hash->table = table;
hash->mask = mask;
hash->shift = shift;
get_random_bytes(&hash->rnd, sizeof(hash->rnd));
for (i = 0; i <= omask; i++) {
struct sock *sk;
struct hlist_node *node, *tmp;
sk_for_each_safe(sk, node, tmp, &otable[i])
__sk_add_node(sk, nl_pid_hashfn(hash, nlk_sk(sk)->pid));
}
nl_pid_hash_free(otable, osize);
hash->rehash_time = jiffies + 10 * 60 * HZ;
return 1;
}
| null | 0 | static int nl_pid_hash_rehash(struct nl_pid_hash *hash, int grow)
{
unsigned int omask, mask, shift;
size_t osize, size;
struct hlist_head *otable, *table;
int i;
omask = mask = hash->mask;
osize = size = (mask + 1) * sizeof(*table);
shift = hash->shift;
if (grow) {
if (++shift > hash->max_shift)
return 0;
mask = mask * 2 + 1;
size *= 2;
}
table = nl_pid_hash_zalloc(size);
if (!table)
return 0;
otable = hash->table;
hash->table = table;
hash->mask = mask;
hash->shift = shift;
get_random_bytes(&hash->rnd, sizeof(hash->rnd));
for (i = 0; i <= omask; i++) {
struct sock *sk;
struct hlist_node *node, *tmp;
sk_for_each_safe(sk, node, tmp, &otable[i])
__sk_add_node(sk, nl_pid_hashfn(hash, nlk_sk(sk)->pid));
}
nl_pid_hash_free(otable, osize);
hash->rehash_time = jiffies + 10 * 60 * HZ;
return 1;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,430 | static struct hlist_head *nl_pid_hash_zalloc(size_t size)
{
if (size <= PAGE_SIZE)
return kzalloc(size, GFP_ATOMIC);
else
return (struct hlist_head *)
__get_free_pages(GFP_ATOMIC | __GFP_ZERO,
get_order(size));
}
| null | 0 | static struct hlist_head *nl_pid_hash_zalloc(size_t size)
{
if (size <= PAGE_SIZE)
return kzalloc(size, GFP_ATOMIC);
else
return (struct hlist_head *)
__get_free_pages(GFP_ATOMIC | __GFP_ZERO,
get_order(size));
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,431 | static inline struct hlist_head *nl_pid_hashfn(struct nl_pid_hash *hash, u32 pid)
{
return &hash->table[jhash_1word(pid, hash->rnd) & hash->mask];
}
| null | 0 | static inline struct hlist_head *nl_pid_hashfn(struct nl_pid_hash *hash, u32 pid)
{
return &hash->table[jhash_1word(pid, hash->rnd) & hash->mask];
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,432 | static inline struct netlink_sock *nlk_sk(struct sock *sk)
{
return container_of(sk, struct netlink_sock, sk);
}
| null | 0 | static inline struct netlink_sock *nlk_sk(struct sock *sk)
{
return container_of(sk, struct netlink_sock, sk);
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,433 | int nlmsg_notify(struct sock *sk, struct sk_buff *skb, u32 pid,
unsigned int group, int report, gfp_t flags)
{
int err = 0;
if (group) {
int exclude_pid = 0;
if (report) {
atomic_inc(&skb->users);
exclude_pid = pid;
}
/* errors reported via destination sk->sk_err, but propagate
* delivery errors if NETLINK_BROADCAST_ERROR flag is set */
err = nlmsg_multicast(sk, skb, exclude_pid, group, flags);
}
if (report) {
int err2;
err2 = nlmsg_unicast(sk, skb, pid);
if (!err || err == -ESRCH)
err = err2;
}
return err;
}
| null | 0 | int nlmsg_notify(struct sock *sk, struct sk_buff *skb, u32 pid,
unsigned int group, int report, gfp_t flags)
{
int err = 0;
if (group) {
int exclude_pid = 0;
if (report) {
atomic_inc(&skb->users);
exclude_pid = pid;
}
/* errors reported via destination sk->sk_err, but propagate
* delivery errors if NETLINK_BROADCAST_ERROR flag is set */
err = nlmsg_multicast(sk, skb, exclude_pid, group, flags);
}
if (report) {
int err2;
err2 = nlmsg_unicast(sk, skb, pid);
if (!err || err == -ESRCH)
err = err2;
}
return err;
}
| @@ -1362,7 +1362,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &scm;
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, true);
if (err < 0)
return err;
| CWE-287 | null | null |
15,434 | __acquires(unix_table_lock)
{
spin_lock(&unix_table_lock);
if (!*pos)
return SEQ_START_TOKEN;
if (get_bucket(*pos) >= ARRAY_SIZE(unix_socket_table))
return NULL;
return unix_next_socket(seq, NULL, pos);
}
| null | 0 | __acquires(unix_table_lock)
{
spin_lock(&unix_table_lock);
if (!*pos)
return SEQ_START_TOKEN;
if (get_bucket(*pos) >= ARRAY_SIZE(unix_socket_table))
return NULL;
return unix_next_socket(seq, NULL, pos);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,435 | __releases(unix_table_lock)
{
spin_unlock(&unix_table_lock);
}
| null | 0 | __releases(unix_table_lock)
{
spin_unlock(&unix_table_lock);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,436 | static struct sock *__unix_find_socket_byname(struct net *net,
struct sockaddr_un *sunname,
int len, int type, unsigned int hash)
{
struct sock *s;
struct hlist_node *node;
sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
struct unix_sock *u = unix_sk(s);
if (!net_eq(sock_net(s), net))
continue;
if (u->addr->len == len &&
!memcmp(u->addr->name, sunname, len))
goto found;
}
s = NULL;
found:
return s;
}
| null | 0 | static struct sock *__unix_find_socket_byname(struct net *net,
struct sockaddr_un *sunname,
int len, int type, unsigned int hash)
{
struct sock *s;
struct hlist_node *node;
sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
struct unix_sock *u = unix_sk(s);
if (!net_eq(sock_net(s), net))
continue;
if (u->addr->len == len &&
!memcmp(u->addr->name, sunname, len))
goto found;
}
s = NULL;
found:
return s;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,437 | static void __unix_insert_socket(struct hlist_head *list, struct sock *sk)
{
WARN_ON(!sk_unhashed(sk));
sk_add_node(sk, list);
}
| null | 0 | static void __unix_insert_socket(struct hlist_head *list, struct sock *sk)
{
WARN_ON(!sk_unhashed(sk));
sk_add_node(sk, list);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,438 | static void __unix_remove_socket(struct sock *sk)
{
sk_del_node_init(sk);
}
| null | 0 | static void __unix_remove_socket(struct sock *sk)
{
sk_del_node_init(sk);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,439 | static void copy_peercred(struct sock *sk, struct sock *peersk)
{
put_pid(sk->sk_peer_pid);
if (sk->sk_peer_cred)
put_cred(sk->sk_peer_cred);
sk->sk_peer_pid = get_pid(peersk->sk_peer_pid);
sk->sk_peer_cred = get_cred(peersk->sk_peer_cred);
}
| null | 0 | static void copy_peercred(struct sock *sk, struct sock *peersk)
{
put_pid(sk->sk_peer_pid);
if (sk->sk_peer_cred)
put_cred(sk->sk_peer_cred);
sk->sk_peer_pid = get_pid(peersk->sk_peer_pid);
sk->sk_peer_cred = get_cred(peersk->sk_peer_cred);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,440 | static void init_peercred(struct sock *sk)
{
put_pid(sk->sk_peer_pid);
if (sk->sk_peer_cred)
put_cred(sk->sk_peer_cred);
sk->sk_peer_pid = get_pid(task_tgid(current));
sk->sk_peer_cred = get_current_cred();
}
| null | 0 | static void init_peercred(struct sock *sk)
{
put_pid(sk->sk_peer_pid);
if (sk->sk_peer_cred)
put_cred(sk->sk_peer_cred);
sk->sk_peer_pid = get_pid(task_tgid(current));
sk->sk_peer_cred = get_current_cred();
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,441 | static void maybe_add_creds(struct sk_buff *skb, const struct socket *sock,
const struct sock *other)
{
if (UNIXCB(skb).cred)
return;
if (test_bit(SOCK_PASSCRED, &sock->flags) ||
!other->sk_socket ||
test_bit(SOCK_PASSCRED, &other->sk_socket->flags)) {
UNIXCB(skb).pid = get_pid(task_tgid(current));
UNIXCB(skb).cred = get_current_cred();
}
}
| null | 0 | static void maybe_add_creds(struct sk_buff *skb, const struct socket *sock,
const struct sock *other)
{
if (UNIXCB(skb).cred)
return;
if (test_bit(SOCK_PASSCRED, &sock->flags) ||
!other->sk_socket ||
test_bit(SOCK_PASSCRED, &other->sk_socket->flags)) {
UNIXCB(skb).pid = get_pid(task_tgid(current));
UNIXCB(skb).cred = get_current_cred();
}
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,442 | static int unix_autobind(struct socket *sock)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
static u32 ordernum = 1;
struct unix_address *addr;
int err;
unsigned int retries = 0;
mutex_lock(&u->readlock);
err = 0;
if (u->addr)
goto out;
err = -ENOMEM;
addr = kzalloc(sizeof(*addr) + sizeof(short) + 16, GFP_KERNEL);
if (!addr)
goto out;
addr->name->sun_family = AF_UNIX;
atomic_set(&addr->refcnt, 1);
retry:
addr->len = sprintf(addr->name->sun_path+1, "%05x", ordernum) + 1 + sizeof(short);
addr->hash = unix_hash_fold(csum_partial(addr->name, addr->len, 0));
spin_lock(&unix_table_lock);
ordernum = (ordernum+1)&0xFFFFF;
if (__unix_find_socket_byname(net, addr->name, addr->len, sock->type,
addr->hash)) {
spin_unlock(&unix_table_lock);
/*
* __unix_find_socket_byname() may take long time if many names
* are already in use.
*/
cond_resched();
/* Give up if all names seems to be in use. */
if (retries++ == 0xFFFFF) {
err = -ENOSPC;
kfree(addr);
goto out;
}
goto retry;
}
addr->hash ^= sk->sk_type;
__unix_remove_socket(sk);
u->addr = addr;
__unix_insert_socket(&unix_socket_table[addr->hash], sk);
spin_unlock(&unix_table_lock);
err = 0;
out: mutex_unlock(&u->readlock);
return err;
}
| null | 0 | static int unix_autobind(struct socket *sock)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
static u32 ordernum = 1;
struct unix_address *addr;
int err;
unsigned int retries = 0;
mutex_lock(&u->readlock);
err = 0;
if (u->addr)
goto out;
err = -ENOMEM;
addr = kzalloc(sizeof(*addr) + sizeof(short) + 16, GFP_KERNEL);
if (!addr)
goto out;
addr->name->sun_family = AF_UNIX;
atomic_set(&addr->refcnt, 1);
retry:
addr->len = sprintf(addr->name->sun_path+1, "%05x", ordernum) + 1 + sizeof(short);
addr->hash = unix_hash_fold(csum_partial(addr->name, addr->len, 0));
spin_lock(&unix_table_lock);
ordernum = (ordernum+1)&0xFFFFF;
if (__unix_find_socket_byname(net, addr->name, addr->len, sock->type,
addr->hash)) {
spin_unlock(&unix_table_lock);
/*
* __unix_find_socket_byname() may take long time if many names
* are already in use.
*/
cond_resched();
/* Give up if all names seems to be in use. */
if (retries++ == 0xFFFFF) {
err = -ENOSPC;
kfree(addr);
goto out;
}
goto retry;
}
addr->hash ^= sk->sk_type;
__unix_remove_socket(sk);
u->addr = addr;
__unix_insert_socket(&unix_socket_table[addr->hash], sk);
spin_unlock(&unix_table_lock);
err = 0;
out: mutex_unlock(&u->readlock);
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,443 | static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
char *sun_path = sunaddr->sun_path;
int err;
unsigned int hash;
struct unix_address *addr;
struct hlist_head *list;
err = -EINVAL;
if (sunaddr->sun_family != AF_UNIX)
goto out;
if (addr_len == sizeof(short)) {
err = unix_autobind(sock);
goto out;
}
err = unix_mkname(sunaddr, addr_len, &hash);
if (err < 0)
goto out;
addr_len = err;
mutex_lock(&u->readlock);
err = -EINVAL;
if (u->addr)
goto out_up;
err = -ENOMEM;
addr = kmalloc(sizeof(*addr)+addr_len, GFP_KERNEL);
if (!addr)
goto out_up;
memcpy(addr->name, sunaddr, addr_len);
addr->len = addr_len;
addr->hash = hash ^ sk->sk_type;
atomic_set(&addr->refcnt, 1);
if (sun_path[0]) {
struct path path;
umode_t mode = S_IFSOCK |
(SOCK_INODE(sock)->i_mode & ~current_umask());
err = unix_mknod(sun_path, mode, &path);
if (err) {
if (err == -EEXIST)
err = -EADDRINUSE;
unix_release_addr(addr);
goto out_up;
}
addr->hash = UNIX_HASH_SIZE;
hash = path.dentry->d_inode->i_ino & (UNIX_HASH_SIZE-1);
spin_lock(&unix_table_lock);
u->path = path;
list = &unix_socket_table[hash];
} else {
spin_lock(&unix_table_lock);
err = -EADDRINUSE;
if (__unix_find_socket_byname(net, sunaddr, addr_len,
sk->sk_type, hash)) {
unix_release_addr(addr);
goto out_unlock;
}
list = &unix_socket_table[addr->hash];
}
err = 0;
__unix_remove_socket(sk);
u->addr = addr;
__unix_insert_socket(list, sk);
out_unlock:
spin_unlock(&unix_table_lock);
out_up:
mutex_unlock(&u->readlock);
out:
return err;
}
| null | 0 | static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
char *sun_path = sunaddr->sun_path;
int err;
unsigned int hash;
struct unix_address *addr;
struct hlist_head *list;
err = -EINVAL;
if (sunaddr->sun_family != AF_UNIX)
goto out;
if (addr_len == sizeof(short)) {
err = unix_autobind(sock);
goto out;
}
err = unix_mkname(sunaddr, addr_len, &hash);
if (err < 0)
goto out;
addr_len = err;
mutex_lock(&u->readlock);
err = -EINVAL;
if (u->addr)
goto out_up;
err = -ENOMEM;
addr = kmalloc(sizeof(*addr)+addr_len, GFP_KERNEL);
if (!addr)
goto out_up;
memcpy(addr->name, sunaddr, addr_len);
addr->len = addr_len;
addr->hash = hash ^ sk->sk_type;
atomic_set(&addr->refcnt, 1);
if (sun_path[0]) {
struct path path;
umode_t mode = S_IFSOCK |
(SOCK_INODE(sock)->i_mode & ~current_umask());
err = unix_mknod(sun_path, mode, &path);
if (err) {
if (err == -EEXIST)
err = -EADDRINUSE;
unix_release_addr(addr);
goto out_up;
}
addr->hash = UNIX_HASH_SIZE;
hash = path.dentry->d_inode->i_ino & (UNIX_HASH_SIZE-1);
spin_lock(&unix_table_lock);
u->path = path;
list = &unix_socket_table[hash];
} else {
spin_lock(&unix_table_lock);
err = -EADDRINUSE;
if (__unix_find_socket_byname(net, sunaddr, addr_len,
sk->sk_type, hash)) {
unix_release_addr(addr);
goto out_unlock;
}
list = &unix_socket_table[addr->hash];
}
err = 0;
__unix_remove_socket(sk);
u->addr = addr;
__unix_insert_socket(list, sk);
out_unlock:
spin_unlock(&unix_table_lock);
out_up:
mutex_unlock(&u->readlock);
out:
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,444 | static void unix_copy_addr(struct msghdr *msg, struct sock *sk)
{
struct unix_sock *u = unix_sk(sk);
msg->msg_namelen = 0;
if (u->addr) {
msg->msg_namelen = u->addr->len;
memcpy(msg->msg_name, u->addr->name, u->addr->len);
}
}
| null | 0 | static void unix_copy_addr(struct msghdr *msg, struct sock *sk)
{
struct unix_sock *u = unix_sk(sk);
msg->msg_namelen = 0;
if (u->addr) {
msg->msg_namelen = u->addr->len;
memcpy(msg->msg_name, u->addr->name, u->addr->len);
}
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,445 | static int unix_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
if (protocol && protocol != PF_UNIX)
return -EPROTONOSUPPORT;
sock->state = SS_UNCONNECTED;
switch (sock->type) {
case SOCK_STREAM:
sock->ops = &unix_stream_ops;
break;
/*
* Believe it or not BSD has AF_UNIX, SOCK_RAW though
* nothing uses it.
*/
case SOCK_RAW:
sock->type = SOCK_DGRAM;
case SOCK_DGRAM:
sock->ops = &unix_dgram_ops;
break;
case SOCK_SEQPACKET:
sock->ops = &unix_seqpacket_ops;
break;
default:
return -ESOCKTNOSUPPORT;
}
return unix_create1(net, sock) ? 0 : -ENOMEM;
}
| null | 0 | static int unix_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
if (protocol && protocol != PF_UNIX)
return -EPROTONOSUPPORT;
sock->state = SS_UNCONNECTED;
switch (sock->type) {
case SOCK_STREAM:
sock->ops = &unix_stream_ops;
break;
/*
* Believe it or not BSD has AF_UNIX, SOCK_RAW though
* nothing uses it.
*/
case SOCK_RAW:
sock->type = SOCK_DGRAM;
case SOCK_DGRAM:
sock->ops = &unix_dgram_ops;
break;
case SOCK_SEQPACKET:
sock->ops = &unix_seqpacket_ops;
break;
default:
return -ESOCKTNOSUPPORT;
}
return unix_create1(net, sock) ? 0 : -ENOMEM;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,446 | static void unix_destruct_scm(struct sk_buff *skb)
{
struct scm_cookie scm;
memset(&scm, 0, sizeof(scm));
scm.pid = UNIXCB(skb).pid;
scm.cred = UNIXCB(skb).cred;
if (UNIXCB(skb).fp)
unix_detach_fds(&scm, skb);
/* Alas, it calls VFS */
/* So fscking what? fput() had been SMP-safe since the last Summer */
scm_destroy(&scm);
sock_wfree(skb);
}
| null | 0 | static void unix_destruct_scm(struct sk_buff *skb)
{
struct scm_cookie scm;
memset(&scm, 0, sizeof(scm));
scm.pid = UNIXCB(skb).pid;
scm.cred = UNIXCB(skb).cred;
if (UNIXCB(skb).fp)
unix_detach_fds(&scm, skb);
/* Alas, it calls VFS */
/* So fscking what? fput() had been SMP-safe since the last Summer */
scm_destroy(&scm);
sock_wfree(skb);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,447 | static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb)
{
int i;
scm->fp = UNIXCB(skb).fp;
UNIXCB(skb).fp = NULL;
for (i = scm->fp->count-1; i >= 0; i--)
unix_notinflight(scm->fp->fp[i]);
}
| null | 0 | static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb)
{
int i;
scm->fp = UNIXCB(skb).fp;
UNIXCB(skb).fp = NULL;
for (i = scm->fp->count-1; i >= 0; i--)
unix_notinflight(scm->fp->fp[i]);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,448 | static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
int alen, int flags)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct sockaddr_un *sunaddr = (struct sockaddr_un *)addr;
struct sock *other;
unsigned int hash;
int err;
if (addr->sa_family != AF_UNSPEC) {
err = unix_mkname(sunaddr, alen, &hash);
if (err < 0)
goto out;
alen = err;
if (test_bit(SOCK_PASSCRED, &sock->flags) &&
!unix_sk(sk)->addr && (err = unix_autobind(sock)) != 0)
goto out;
restart:
other = unix_find_other(net, sunaddr, alen, sock->type, hash, &err);
if (!other)
goto out;
unix_state_double_lock(sk, other);
/* Apparently VFS overslept socket death. Retry. */
if (sock_flag(other, SOCK_DEAD)) {
unix_state_double_unlock(sk, other);
sock_put(other);
goto restart;
}
err = -EPERM;
if (!unix_may_send(sk, other))
goto out_unlock;
err = security_unix_may_send(sk->sk_socket, other->sk_socket);
if (err)
goto out_unlock;
} else {
/*
* 1003.1g breaking connected state with AF_UNSPEC
*/
other = NULL;
unix_state_double_lock(sk, other);
}
/*
* If it was connected, reconnect.
*/
if (unix_peer(sk)) {
struct sock *old_peer = unix_peer(sk);
unix_peer(sk) = other;
unix_state_double_unlock(sk, other);
if (other != old_peer)
unix_dgram_disconnected(sk, old_peer);
sock_put(old_peer);
} else {
unix_peer(sk) = other;
unix_state_double_unlock(sk, other);
}
return 0;
out_unlock:
unix_state_double_unlock(sk, other);
sock_put(other);
out:
return err;
}
| null | 0 | static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
int alen, int flags)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct sockaddr_un *sunaddr = (struct sockaddr_un *)addr;
struct sock *other;
unsigned int hash;
int err;
if (addr->sa_family != AF_UNSPEC) {
err = unix_mkname(sunaddr, alen, &hash);
if (err < 0)
goto out;
alen = err;
if (test_bit(SOCK_PASSCRED, &sock->flags) &&
!unix_sk(sk)->addr && (err = unix_autobind(sock)) != 0)
goto out;
restart:
other = unix_find_other(net, sunaddr, alen, sock->type, hash, &err);
if (!other)
goto out;
unix_state_double_lock(sk, other);
/* Apparently VFS overslept socket death. Retry. */
if (sock_flag(other, SOCK_DEAD)) {
unix_state_double_unlock(sk, other);
sock_put(other);
goto restart;
}
err = -EPERM;
if (!unix_may_send(sk, other))
goto out_unlock;
err = security_unix_may_send(sk->sk_socket, other->sk_socket);
if (err)
goto out_unlock;
} else {
/*
* 1003.1g breaking connected state with AF_UNSPEC
*/
other = NULL;
unix_state_double_lock(sk, other);
}
/*
* If it was connected, reconnect.
*/
if (unix_peer(sk)) {
struct sock *old_peer = unix_peer(sk);
unix_peer(sk) = other;
unix_state_double_unlock(sk, other);
if (other != old_peer)
unix_dgram_disconnected(sk, old_peer);
sock_put(old_peer);
} else {
unix_peer(sk) = other;
unix_state_double_unlock(sk, other);
}
return 0;
out_unlock:
unix_state_double_unlock(sk, other);
sock_put(other);
out:
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,449 | static void unix_dgram_disconnected(struct sock *sk, struct sock *other)
{
if (!skb_queue_empty(&sk->sk_receive_queue)) {
skb_queue_purge(&sk->sk_receive_queue);
wake_up_interruptible_all(&unix_sk(sk)->peer_wait);
/* If one link of bidirectional dgram pipe is disconnected,
* we signal error. Messages are lost. Do not make this,
* when peer was not connected to us.
*/
if (!sock_flag(other, SOCK_DEAD) && unix_peer(other) == sk) {
other->sk_err = ECONNRESET;
other->sk_error_report(other);
}
}
}
| null | 0 | static void unix_dgram_disconnected(struct sock *sk, struct sock *other)
{
if (!skb_queue_empty(&sk->sk_receive_queue)) {
skb_queue_purge(&sk->sk_receive_queue);
wake_up_interruptible_all(&unix_sk(sk)->peer_wait);
/* If one link of bidirectional dgram pipe is disconnected,
* we signal error. Messages are lost. Do not make this,
* when peer was not connected to us.
*/
if (!sock_flag(other, SOCK_DEAD) && unix_peer(other) == sk) {
other->sk_err = ECONNRESET;
other->sk_error_report(other);
}
}
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,450 | static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,
poll_table *wait)
{
struct sock *sk = sock->sk, *other;
unsigned int mask, writable;
sock_poll_wait(file, sk_sleep(sk), wait);
mask = 0;
/* exceptional events? */
if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
mask |= POLLERR;
if (sk->sk_shutdown & RCV_SHUTDOWN)
mask |= POLLRDHUP | POLLIN | POLLRDNORM;
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
/* readable? */
if (!skb_queue_empty(&sk->sk_receive_queue))
mask |= POLLIN | POLLRDNORM;
/* Connection-based need to check for termination and startup */
if (sk->sk_type == SOCK_SEQPACKET) {
if (sk->sk_state == TCP_CLOSE)
mask |= POLLHUP;
/* connection hasn't started yet? */
if (sk->sk_state == TCP_SYN_SENT)
return mask;
}
/* No write status requested, avoid expensive OUT tests. */
if (!(poll_requested_events(wait) & (POLLWRBAND|POLLWRNORM|POLLOUT)))
return mask;
writable = unix_writable(sk);
other = unix_peer_get(sk);
if (other) {
if (unix_peer(other) != sk) {
sock_poll_wait(file, &unix_sk(other)->peer_wait, wait);
if (unix_recvq_full(other))
writable = 0;
}
sock_put(other);
}
if (writable)
mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
else
set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
return mask;
}
| null | 0 | static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,
poll_table *wait)
{
struct sock *sk = sock->sk, *other;
unsigned int mask, writable;
sock_poll_wait(file, sk_sleep(sk), wait);
mask = 0;
/* exceptional events? */
if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
mask |= POLLERR;
if (sk->sk_shutdown & RCV_SHUTDOWN)
mask |= POLLRDHUP | POLLIN | POLLRDNORM;
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
/* readable? */
if (!skb_queue_empty(&sk->sk_receive_queue))
mask |= POLLIN | POLLRDNORM;
/* Connection-based need to check for termination and startup */
if (sk->sk_type == SOCK_SEQPACKET) {
if (sk->sk_state == TCP_CLOSE)
mask |= POLLHUP;
/* connection hasn't started yet? */
if (sk->sk_state == TCP_SYN_SENT)
return mask;
}
/* No write status requested, avoid expensive OUT tests. */
if (!(poll_requested_events(wait) & (POLLWRBAND|POLLWRNORM|POLLOUT)))
return mask;
writable = unix_writable(sk);
other = unix_peer_get(sk);
if (other) {
if (unix_peer(other) != sk) {
sock_poll_wait(file, &unix_sk(other)->peer_wait, wait);
if (unix_recvq_full(other))
writable = 0;
}
sock_put(other);
}
if (writable)
mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
else
set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
return mask;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,451 | static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size,
int flags)
{
struct sock_iocb *siocb = kiocb_to_siocb(iocb);
struct scm_cookie tmp_scm;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
int noblock = flags & MSG_DONTWAIT;
struct sk_buff *skb;
int err;
int peeked, skip;
err = -EOPNOTSUPP;
if (flags&MSG_OOB)
goto out;
msg->msg_namelen = 0;
err = mutex_lock_interruptible(&u->readlock);
if (err) {
err = sock_intr_errno(sock_rcvtimeo(sk, noblock));
goto out;
}
skip = sk_peek_offset(sk, flags);
skb = __skb_recv_datagram(sk, flags, &peeked, &skip, &err);
if (!skb) {
unix_state_lock(sk);
/* Signal EOF on disconnected non-blocking SEQPACKET socket. */
if (sk->sk_type == SOCK_SEQPACKET && err == -EAGAIN &&
(sk->sk_shutdown & RCV_SHUTDOWN))
err = 0;
unix_state_unlock(sk);
goto out_unlock;
}
wake_up_interruptible_sync_poll(&u->peer_wait,
POLLOUT | POLLWRNORM | POLLWRBAND);
if (msg->msg_name)
unix_copy_addr(msg, skb->sk);
if (size > skb->len - skip)
size = skb->len - skip;
else if (size < skb->len - skip)
msg->msg_flags |= MSG_TRUNC;
err = skb_copy_datagram_iovec(skb, skip, msg->msg_iov, size);
if (err)
goto out_free;
if (sock_flag(sk, SOCK_RCVTSTAMP))
__sock_recv_timestamp(msg, sk, skb);
if (!siocb->scm) {
siocb->scm = &tmp_scm;
memset(&tmp_scm, 0, sizeof(tmp_scm));
}
scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).cred);
unix_set_secdata(siocb->scm, skb);
if (!(flags & MSG_PEEK)) {
if (UNIXCB(skb).fp)
unix_detach_fds(siocb->scm, skb);
sk_peek_offset_bwd(sk, skb->len);
} else {
/* It is questionable: on PEEK we could:
- do not return fds - good, but too simple 8)
- return fds, and do not return them on read (old strategy,
apparently wrong)
- clone fds (I chose it for now, it is the most universal
solution)
POSIX 1003.1g does not actually define this clearly
at all. POSIX 1003.1g doesn't define a lot of things
clearly however!
*/
sk_peek_offset_fwd(sk, size);
if (UNIXCB(skb).fp)
siocb->scm->fp = scm_fp_dup(UNIXCB(skb).fp);
}
err = (flags & MSG_TRUNC) ? skb->len - skip : size;
scm_recv(sock, msg, siocb->scm, flags);
out_free:
skb_free_datagram(sk, skb);
out_unlock:
mutex_unlock(&u->readlock);
out:
return err;
}
| null | 0 | static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size,
int flags)
{
struct sock_iocb *siocb = kiocb_to_siocb(iocb);
struct scm_cookie tmp_scm;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
int noblock = flags & MSG_DONTWAIT;
struct sk_buff *skb;
int err;
int peeked, skip;
err = -EOPNOTSUPP;
if (flags&MSG_OOB)
goto out;
msg->msg_namelen = 0;
err = mutex_lock_interruptible(&u->readlock);
if (err) {
err = sock_intr_errno(sock_rcvtimeo(sk, noblock));
goto out;
}
skip = sk_peek_offset(sk, flags);
skb = __skb_recv_datagram(sk, flags, &peeked, &skip, &err);
if (!skb) {
unix_state_lock(sk);
/* Signal EOF on disconnected non-blocking SEQPACKET socket. */
if (sk->sk_type == SOCK_SEQPACKET && err == -EAGAIN &&
(sk->sk_shutdown & RCV_SHUTDOWN))
err = 0;
unix_state_unlock(sk);
goto out_unlock;
}
wake_up_interruptible_sync_poll(&u->peer_wait,
POLLOUT | POLLWRNORM | POLLWRBAND);
if (msg->msg_name)
unix_copy_addr(msg, skb->sk);
if (size > skb->len - skip)
size = skb->len - skip;
else if (size < skb->len - skip)
msg->msg_flags |= MSG_TRUNC;
err = skb_copy_datagram_iovec(skb, skip, msg->msg_iov, size);
if (err)
goto out_free;
if (sock_flag(sk, SOCK_RCVTSTAMP))
__sock_recv_timestamp(msg, sk, skb);
if (!siocb->scm) {
siocb->scm = &tmp_scm;
memset(&tmp_scm, 0, sizeof(tmp_scm));
}
scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).cred);
unix_set_secdata(siocb->scm, skb);
if (!(flags & MSG_PEEK)) {
if (UNIXCB(skb).fp)
unix_detach_fds(siocb->scm, skb);
sk_peek_offset_bwd(sk, skb->len);
} else {
/* It is questionable: on PEEK we could:
- do not return fds - good, but too simple 8)
- return fds, and do not return them on read (old strategy,
apparently wrong)
- clone fds (I chose it for now, it is the most universal
solution)
POSIX 1003.1g does not actually define this clearly
at all. POSIX 1003.1g doesn't define a lot of things
clearly however!
*/
sk_peek_offset_fwd(sk, size);
if (UNIXCB(skb).fp)
siocb->scm->fp = scm_fp_dup(UNIXCB(skb).fp);
}
err = (flags & MSG_TRUNC) ? skb->len - skip : size;
scm_recv(sock, msg, siocb->scm, flags);
out_free:
skb_free_datagram(sk, skb);
out_unlock:
mutex_unlock(&u->readlock);
out:
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,452 | static struct sock *unix_find_other(struct net *net,
struct sockaddr_un *sunname, int len,
int type, unsigned int hash, int *error)
{
struct sock *u;
struct path path;
int err = 0;
if (sunname->sun_path[0]) {
struct inode *inode;
err = kern_path(sunname->sun_path, LOOKUP_FOLLOW, &path);
if (err)
goto fail;
inode = path.dentry->d_inode;
err = inode_permission(inode, MAY_WRITE);
if (err)
goto put_fail;
err = -ECONNREFUSED;
if (!S_ISSOCK(inode->i_mode))
goto put_fail;
u = unix_find_socket_byinode(inode);
if (!u)
goto put_fail;
if (u->sk_type == type)
touch_atime(&path);
path_put(&path);
err = -EPROTOTYPE;
if (u->sk_type != type) {
sock_put(u);
goto fail;
}
} else {
err = -ECONNREFUSED;
u = unix_find_socket_byname(net, sunname, len, type, hash);
if (u) {
struct dentry *dentry;
dentry = unix_sk(u)->path.dentry;
if (dentry)
touch_atime(&unix_sk(u)->path);
} else
goto fail;
}
return u;
put_fail:
path_put(&path);
fail:
*error = err;
return NULL;
}
| null | 0 | static struct sock *unix_find_other(struct net *net,
struct sockaddr_un *sunname, int len,
int type, unsigned int hash, int *error)
{
struct sock *u;
struct path path;
int err = 0;
if (sunname->sun_path[0]) {
struct inode *inode;
err = kern_path(sunname->sun_path, LOOKUP_FOLLOW, &path);
if (err)
goto fail;
inode = path.dentry->d_inode;
err = inode_permission(inode, MAY_WRITE);
if (err)
goto put_fail;
err = -ECONNREFUSED;
if (!S_ISSOCK(inode->i_mode))
goto put_fail;
u = unix_find_socket_byinode(inode);
if (!u)
goto put_fail;
if (u->sk_type == type)
touch_atime(&path);
path_put(&path);
err = -EPROTOTYPE;
if (u->sk_type != type) {
sock_put(u);
goto fail;
}
} else {
err = -ECONNREFUSED;
u = unix_find_socket_byname(net, sunname, len, type, hash);
if (u) {
struct dentry *dentry;
dentry = unix_sk(u)->path.dentry;
if (dentry)
touch_atime(&unix_sk(u)->path);
} else
goto fail;
}
return u;
put_fail:
path_put(&path);
fail:
*error = err;
return NULL;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,453 | static struct sock *unix_find_socket_byinode(struct inode *i)
{
struct sock *s;
struct hlist_node *node;
spin_lock(&unix_table_lock);
sk_for_each(s, node,
&unix_socket_table[i->i_ino & (UNIX_HASH_SIZE - 1)]) {
struct dentry *dentry = unix_sk(s)->path.dentry;
if (dentry && dentry->d_inode == i) {
sock_hold(s);
goto found;
}
}
s = NULL;
found:
spin_unlock(&unix_table_lock);
return s;
}
| null | 0 | static struct sock *unix_find_socket_byinode(struct inode *i)
{
struct sock *s;
struct hlist_node *node;
spin_lock(&unix_table_lock);
sk_for_each(s, node,
&unix_socket_table[i->i_ino & (UNIX_HASH_SIZE - 1)]) {
struct dentry *dentry = unix_sk(s)->path.dentry;
if (dentry && dentry->d_inode == i) {
sock_hold(s);
goto found;
}
}
s = NULL;
found:
spin_unlock(&unix_table_lock);
return s;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,454 | static inline struct sock *unix_find_socket_byname(struct net *net,
struct sockaddr_un *sunname,
int len, int type,
unsigned int hash)
{
struct sock *s;
spin_lock(&unix_table_lock);
s = __unix_find_socket_byname(net, sunname, len, type, hash);
if (s)
sock_hold(s);
spin_unlock(&unix_table_lock);
return s;
}
| null | 0 | static inline struct sock *unix_find_socket_byname(struct net *net,
struct sockaddr_un *sunname,
int len, int type,
unsigned int hash)
{
struct sock *s;
spin_lock(&unix_table_lock);
s = __unix_find_socket_byname(net, sunname, len, type, hash);
if (s)
sock_hold(s);
spin_unlock(&unix_table_lock);
return s;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,455 | static struct sock *unix_from_bucket(struct seq_file *seq, loff_t *pos)
{
unsigned long offset = get_offset(*pos);
unsigned long bucket = get_bucket(*pos);
struct sock *sk;
unsigned long count = 0;
for (sk = sk_head(&unix_socket_table[bucket]); sk; sk = sk_next(sk)) {
if (sock_net(sk) != seq_file_net(seq))
continue;
if (++count == offset)
break;
}
return sk;
}
| null | 0 | static struct sock *unix_from_bucket(struct seq_file *seq, loff_t *pos)
{
unsigned long offset = get_offset(*pos);
unsigned long bucket = get_bucket(*pos);
struct sock *sk;
unsigned long count = 0;
for (sk = sk_head(&unix_socket_table[bucket]); sk; sk = sk_next(sk)) {
if (sock_net(sk) != seq_file_net(seq))
continue;
if (++count == offset)
break;
}
return sk;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,456 | static void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)
{
memcpy(UNIXSID(skb), &scm->secid, sizeof(u32));
}
| null | 0 | static void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)
{
memcpy(UNIXSID(skb), &scm->secid, sizeof(u32));
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,457 | static inline void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)
{ }
| null | 0 | static inline void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)
{ }
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,458 | static int unix_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer)
{
struct sock *sk = sock->sk;
struct unix_sock *u;
DECLARE_SOCKADDR(struct sockaddr_un *, sunaddr, uaddr);
int err = 0;
if (peer) {
sk = unix_peer_get(sk);
err = -ENOTCONN;
if (!sk)
goto out;
err = 0;
} else {
sock_hold(sk);
}
u = unix_sk(sk);
unix_state_lock(sk);
if (!u->addr) {
sunaddr->sun_family = AF_UNIX;
sunaddr->sun_path[0] = 0;
*uaddr_len = sizeof(short);
} else {
struct unix_address *addr = u->addr;
*uaddr_len = addr->len;
memcpy(sunaddr, addr->name, *uaddr_len);
}
unix_state_unlock(sk);
sock_put(sk);
out:
return err;
}
| null | 0 | static int unix_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer)
{
struct sock *sk = sock->sk;
struct unix_sock *u;
DECLARE_SOCKADDR(struct sockaddr_un *, sunaddr, uaddr);
int err = 0;
if (peer) {
sk = unix_peer_get(sk);
err = -ENOTCONN;
if (!sk)
goto out;
err = 0;
} else {
sock_hold(sk);
}
u = unix_sk(sk);
unix_state_lock(sk);
if (!u->addr) {
sunaddr->sun_family = AF_UNIX;
sunaddr->sun_path[0] = 0;
*uaddr_len = sizeof(short);
} else {
struct unix_address *addr = u->addr;
*uaddr_len = addr->len;
memcpy(sunaddr, addr->name, *uaddr_len);
}
unix_state_unlock(sk);
sock_put(sk);
out:
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,459 | static inline unsigned int unix_hash_fold(__wsum n)
{
unsigned int hash = (__force unsigned int)n;
hash ^= hash>>16;
hash ^= hash>>8;
return hash&(UNIX_HASH_SIZE-1);
}
| null | 0 | static inline unsigned int unix_hash_fold(__wsum n)
{
unsigned int hash = (__force unsigned int)n;
hash ^= hash>>16;
hash ^= hash>>8;
return hash&(UNIX_HASH_SIZE-1);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,460 | long unix_inq_len(struct sock *sk)
{
struct sk_buff *skb;
long amount = 0;
if (sk->sk_state == TCP_LISTEN)
return -EINVAL;
spin_lock(&sk->sk_receive_queue.lock);
if (sk->sk_type == SOCK_STREAM ||
sk->sk_type == SOCK_SEQPACKET) {
skb_queue_walk(&sk->sk_receive_queue, skb)
amount += skb->len;
} else {
skb = skb_peek(&sk->sk_receive_queue);
if (skb)
amount = skb->len;
}
spin_unlock(&sk->sk_receive_queue.lock);
return amount;
}
| null | 0 | long unix_inq_len(struct sock *sk)
{
struct sk_buff *skb;
long amount = 0;
if (sk->sk_state == TCP_LISTEN)
return -EINVAL;
spin_lock(&sk->sk_receive_queue.lock);
if (sk->sk_type == SOCK_STREAM ||
sk->sk_type == SOCK_SEQPACKET) {
skb_queue_walk(&sk->sk_receive_queue, skb)
amount += skb->len;
} else {
skb = skb_peek(&sk->sk_receive_queue);
if (skb)
amount = skb->len;
}
spin_unlock(&sk->sk_receive_queue.lock);
return amount;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,461 | static inline void unix_insert_socket(struct hlist_head *list, struct sock *sk)
{
spin_lock(&unix_table_lock);
__unix_insert_socket(list, sk);
spin_unlock(&unix_table_lock);
}
| null | 0 | static inline void unix_insert_socket(struct hlist_head *list, struct sock *sk)
{
spin_lock(&unix_table_lock);
__unix_insert_socket(list, sk);
spin_unlock(&unix_table_lock);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,462 | static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
struct sock *sk = sock->sk;
long amount = 0;
int err;
switch (cmd) {
case SIOCOUTQ:
amount = unix_outq_len(sk);
err = put_user(amount, (int __user *)arg);
break;
case SIOCINQ:
amount = unix_inq_len(sk);
if (amount < 0)
err = amount;
else
err = put_user(amount, (int __user *)arg);
break;
default:
err = -ENOIOCTLCMD;
break;
}
return err;
}
| null | 0 | static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
struct sock *sk = sock->sk;
long amount = 0;
int err;
switch (cmd) {
case SIOCOUTQ:
amount = unix_outq_len(sk);
err = put_user(amount, (int __user *)arg);
break;
case SIOCINQ:
amount = unix_inq_len(sk);
if (amount < 0)
err = amount;
else
err = put_user(amount, (int __user *)arg);
break;
default:
err = -ENOIOCTLCMD;
break;
}
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,463 | static int unix_listen(struct socket *sock, int backlog)
{
int err;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
struct pid *old_pid = NULL;
const struct cred *old_cred = NULL;
err = -EOPNOTSUPP;
if (sock->type != SOCK_STREAM && sock->type != SOCK_SEQPACKET)
goto out; /* Only stream/seqpacket sockets accept */
err = -EINVAL;
if (!u->addr)
goto out; /* No listens on an unbound socket */
unix_state_lock(sk);
if (sk->sk_state != TCP_CLOSE && sk->sk_state != TCP_LISTEN)
goto out_unlock;
if (backlog > sk->sk_max_ack_backlog)
wake_up_interruptible_all(&u->peer_wait);
sk->sk_max_ack_backlog = backlog;
sk->sk_state = TCP_LISTEN;
/* set credentials so connect can copy them */
init_peercred(sk);
err = 0;
out_unlock:
unix_state_unlock(sk);
put_pid(old_pid);
if (old_cred)
put_cred(old_cred);
out:
return err;
}
| null | 0 | static int unix_listen(struct socket *sock, int backlog)
{
int err;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
struct pid *old_pid = NULL;
const struct cred *old_cred = NULL;
err = -EOPNOTSUPP;
if (sock->type != SOCK_STREAM && sock->type != SOCK_SEQPACKET)
goto out; /* Only stream/seqpacket sockets accept */
err = -EINVAL;
if (!u->addr)
goto out; /* No listens on an unbound socket */
unix_state_lock(sk);
if (sk->sk_state != TCP_CLOSE && sk->sk_state != TCP_LISTEN)
goto out_unlock;
if (backlog > sk->sk_max_ack_backlog)
wake_up_interruptible_all(&u->peer_wait);
sk->sk_max_ack_backlog = backlog;
sk->sk_state = TCP_LISTEN;
/* set credentials so connect can copy them */
init_peercred(sk);
err = 0;
out_unlock:
unix_state_unlock(sk);
put_pid(old_pid);
if (old_cred)
put_cred(old_cred);
out:
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,464 | static inline int unix_may_send(struct sock *sk, struct sock *osk)
{
return unix_peer(osk) == NULL || unix_our_peer(sk, osk);
}
| null | 0 | static inline int unix_may_send(struct sock *sk, struct sock *osk)
{
return unix_peer(osk) == NULL || unix_our_peer(sk, osk);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,465 | static int unix_mkname(struct sockaddr_un *sunaddr, int len, unsigned int *hashp)
{
if (len <= sizeof(short) || len > sizeof(*sunaddr))
return -EINVAL;
if (!sunaddr || sunaddr->sun_family != AF_UNIX)
return -EINVAL;
if (sunaddr->sun_path[0]) {
/*
* This may look like an off by one error but it is a bit more
* subtle. 108 is the longest valid AF_UNIX path for a binding.
* sun_path[108] doesn't as such exist. However in kernel space
* we are guaranteed that it is a valid memory location in our
* kernel address buffer.
*/
((char *)sunaddr)[len] = 0;
len = strlen(sunaddr->sun_path)+1+sizeof(short);
return len;
}
*hashp = unix_hash_fold(csum_partial(sunaddr, len, 0));
return len;
}
| null | 0 | static int unix_mkname(struct sockaddr_un *sunaddr, int len, unsigned int *hashp)
{
if (len <= sizeof(short) || len > sizeof(*sunaddr))
return -EINVAL;
if (!sunaddr || sunaddr->sun_family != AF_UNIX)
return -EINVAL;
if (sunaddr->sun_path[0]) {
/*
* This may look like an off by one error but it is a bit more
* subtle. 108 is the longest valid AF_UNIX path for a binding.
* sun_path[108] doesn't as such exist. However in kernel space
* we are guaranteed that it is a valid memory location in our
* kernel address buffer.
*/
((char *)sunaddr)[len] = 0;
len = strlen(sunaddr->sun_path)+1+sizeof(short);
return len;
}
*hashp = unix_hash_fold(csum_partial(sunaddr, len, 0));
return len;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,466 | static struct sock *unix_next_socket(struct seq_file *seq,
struct sock *sk,
loff_t *pos)
{
unsigned long bucket;
while (sk > (struct sock *)SEQ_START_TOKEN) {
sk = sk_next(sk);
if (!sk)
goto next_bucket;
if (sock_net(sk) == seq_file_net(seq))
return sk;
}
do {
sk = unix_from_bucket(seq, pos);
if (sk)
return sk;
next_bucket:
bucket = get_bucket(*pos) + 1;
*pos = set_bucket_offset(bucket, 1);
} while (bucket < ARRAY_SIZE(unix_socket_table));
return NULL;
}
| null | 0 | static struct sock *unix_next_socket(struct seq_file *seq,
struct sock *sk,
loff_t *pos)
{
unsigned long bucket;
while (sk > (struct sock *)SEQ_START_TOKEN) {
sk = sk_next(sk);
if (!sk)
goto next_bucket;
if (sock_net(sk) == seq_file_net(seq))
return sk;
}
do {
sk = unix_from_bucket(seq, pos);
if (sk)
return sk;
next_bucket:
bucket = get_bucket(*pos) + 1;
*pos = set_bucket_offset(bucket, 1);
} while (bucket < ARRAY_SIZE(unix_socket_table));
return NULL;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,467 | static inline int unix_our_peer(struct sock *sk, struct sock *osk)
{
return unix_peer(osk) == sk;
}
| null | 0 | static inline int unix_our_peer(struct sock *sk, struct sock *osk)
{
return unix_peer(osk) == sk;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,468 | long unix_outq_len(struct sock *sk)
{
return sk_wmem_alloc_get(sk);
}
| null | 0 | long unix_outq_len(struct sock *sk)
{
return sk_wmem_alloc_get(sk);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,469 | struct sock *unix_peer_get(struct sock *s)
{
struct sock *peer;
unix_state_lock(s);
peer = unix_peer(s);
if (peer)
sock_hold(peer);
unix_state_unlock(s);
return peer;
}
| null | 0 | struct sock *unix_peer_get(struct sock *s)
{
struct sock *peer;
unix_state_lock(s);
peer = unix_peer(s);
if (peer)
sock_hold(peer);
unix_state_unlock(s);
return peer;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,470 | static unsigned int unix_poll(struct file *file, struct socket *sock, poll_table *wait)
{
struct sock *sk = sock->sk;
unsigned int mask;
sock_poll_wait(file, sk_sleep(sk), wait);
mask = 0;
/* exceptional events? */
if (sk->sk_err)
mask |= POLLERR;
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
if (sk->sk_shutdown & RCV_SHUTDOWN)
mask |= POLLRDHUP | POLLIN | POLLRDNORM;
/* readable? */
if (!skb_queue_empty(&sk->sk_receive_queue))
mask |= POLLIN | POLLRDNORM;
/* Connection-based need to check for termination and startup */
if ((sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) &&
sk->sk_state == TCP_CLOSE)
mask |= POLLHUP;
/*
* we set writable also when the other side has shut down the
* connection. This prevents stuck sockets.
*/
if (unix_writable(sk))
mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
return mask;
}
| null | 0 | static unsigned int unix_poll(struct file *file, struct socket *sock, poll_table *wait)
{
struct sock *sk = sock->sk;
unsigned int mask;
sock_poll_wait(file, sk_sleep(sk), wait);
mask = 0;
/* exceptional events? */
if (sk->sk_err)
mask |= POLLERR;
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
if (sk->sk_shutdown & RCV_SHUTDOWN)
mask |= POLLRDHUP | POLLIN | POLLRDNORM;
/* readable? */
if (!skb_queue_empty(&sk->sk_receive_queue))
mask |= POLLIN | POLLRDNORM;
/* Connection-based need to check for termination and startup */
if ((sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) &&
sk->sk_state == TCP_CLOSE)
mask |= POLLHUP;
/*
* we set writable also when the other side has shut down the
* connection. This prevents stuck sockets.
*/
if (unix_writable(sk))
mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
return mask;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,471 | static inline int unix_recvq_full(struct sock const *sk)
{
return skb_queue_len(&sk->sk_receive_queue) > sk->sk_max_ack_backlog;
}
| null | 0 | static inline int unix_recvq_full(struct sock const *sk)
{
return skb_queue_len(&sk->sk_receive_queue) > sk->sk_max_ack_backlog;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,472 | static int unix_release(struct socket *sock)
{
struct sock *sk = sock->sk;
if (!sk)
return 0;
sock->sk = NULL;
return unix_release_sock(sk, 0);
}
| null | 0 | static int unix_release(struct socket *sock)
{
struct sock *sk = sock->sk;
if (!sk)
return 0;
sock->sk = NULL;
return unix_release_sock(sk, 0);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,473 | static inline void unix_release_addr(struct unix_address *addr)
{
if (atomic_dec_and_test(&addr->refcnt))
kfree(addr);
}
| null | 0 | static inline void unix_release_addr(struct unix_address *addr)
{
if (atomic_dec_and_test(&addr->refcnt))
kfree(addr);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,474 | static int unix_release_sock(struct sock *sk, int embrion)
{
struct unix_sock *u = unix_sk(sk);
struct path path;
struct sock *skpair;
struct sk_buff *skb;
int state;
unix_remove_socket(sk);
/* Clear state */
unix_state_lock(sk);
sock_orphan(sk);
sk->sk_shutdown = SHUTDOWN_MASK;
path = u->path;
u->path.dentry = NULL;
u->path.mnt = NULL;
state = sk->sk_state;
sk->sk_state = TCP_CLOSE;
unix_state_unlock(sk);
wake_up_interruptible_all(&u->peer_wait);
skpair = unix_peer(sk);
if (skpair != NULL) {
if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) {
unix_state_lock(skpair);
/* No more writes */
skpair->sk_shutdown = SHUTDOWN_MASK;
if (!skb_queue_empty(&sk->sk_receive_queue) || embrion)
skpair->sk_err = ECONNRESET;
unix_state_unlock(skpair);
skpair->sk_state_change(skpair);
sk_wake_async(skpair, SOCK_WAKE_WAITD, POLL_HUP);
}
sock_put(skpair); /* It may now die */
unix_peer(sk) = NULL;
}
/* Try to flush out this socket. Throw out buffers at least */
while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
if (state == TCP_LISTEN)
unix_release_sock(skb->sk, 1);
/* passed fds are erased in the kfree_skb hook */
kfree_skb(skb);
}
if (path.dentry)
path_put(&path);
sock_put(sk);
/* ---- Socket is dead now and most probably destroyed ---- */
/*
* Fixme: BSD difference: In BSD all sockets connected to use get
* ECONNRESET and we die on the spot. In Linux we behave
* like files and pipes do and wait for the last
* dereference.
*
* Can't we simply set sock->err?
*
* What the above comment does talk about? --ANK(980817)
*/
if (unix_tot_inflight)
unix_gc(); /* Garbage collect fds */
return 0;
}
| null | 0 | static int unix_release_sock(struct sock *sk, int embrion)
{
struct unix_sock *u = unix_sk(sk);
struct path path;
struct sock *skpair;
struct sk_buff *skb;
int state;
unix_remove_socket(sk);
/* Clear state */
unix_state_lock(sk);
sock_orphan(sk);
sk->sk_shutdown = SHUTDOWN_MASK;
path = u->path;
u->path.dentry = NULL;
u->path.mnt = NULL;
state = sk->sk_state;
sk->sk_state = TCP_CLOSE;
unix_state_unlock(sk);
wake_up_interruptible_all(&u->peer_wait);
skpair = unix_peer(sk);
if (skpair != NULL) {
if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) {
unix_state_lock(skpair);
/* No more writes */
skpair->sk_shutdown = SHUTDOWN_MASK;
if (!skb_queue_empty(&sk->sk_receive_queue) || embrion)
skpair->sk_err = ECONNRESET;
unix_state_unlock(skpair);
skpair->sk_state_change(skpair);
sk_wake_async(skpair, SOCK_WAKE_WAITD, POLL_HUP);
}
sock_put(skpair); /* It may now die */
unix_peer(sk) = NULL;
}
/* Try to flush out this socket. Throw out buffers at least */
while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
if (state == TCP_LISTEN)
unix_release_sock(skb->sk, 1);
/* passed fds are erased in the kfree_skb hook */
kfree_skb(skb);
}
if (path.dentry)
path_put(&path);
sock_put(sk);
/* ---- Socket is dead now and most probably destroyed ---- */
/*
* Fixme: BSD difference: In BSD all sockets connected to use get
* ECONNRESET and we die on the spot. In Linux we behave
* like files and pipes do and wait for the last
* dereference.
*
* Can't we simply set sock->err?
*
* What the above comment does talk about? --ANK(980817)
*/
if (unix_tot_inflight)
unix_gc(); /* Garbage collect fds */
return 0;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,475 | static inline void unix_remove_socket(struct sock *sk)
{
spin_lock(&unix_table_lock);
__unix_remove_socket(sk);
spin_unlock(&unix_table_lock);
}
| null | 0 | static inline void unix_remove_socket(struct sock *sk)
{
spin_lock(&unix_table_lock);
__unix_remove_socket(sk);
spin_unlock(&unix_table_lock);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,476 | static int unix_scm_to_skb(struct scm_cookie *scm, struct sk_buff *skb, bool send_fds)
{
int err = 0;
UNIXCB(skb).pid = get_pid(scm->pid);
if (scm->cred)
UNIXCB(skb).cred = get_cred(scm->cred);
UNIXCB(skb).fp = NULL;
if (scm->fp && send_fds)
err = unix_attach_fds(scm, skb);
skb->destructor = unix_destruct_scm;
return err;
}
| null | 0 | static int unix_scm_to_skb(struct scm_cookie *scm, struct sk_buff *skb, bool send_fds)
{
int err = 0;
UNIXCB(skb).pid = get_pid(scm->pid);
if (scm->cred)
UNIXCB(skb).cred = get_cred(scm->cred);
UNIXCB(skb).fp = NULL;
if (scm->fp && send_fds)
err = unix_attach_fds(scm, skb);
skb->destructor = unix_destruct_scm;
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,477 | static void *unix_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
++*pos;
return unix_next_socket(seq, v, pos);
}
| null | 0 | static void *unix_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
++*pos;
return unix_next_socket(seq, v, pos);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,478 | static int unix_seqpacket_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct msghdr *msg, size_t len)
{
int err;
struct sock *sk = sock->sk;
err = sock_error(sk);
if (err)
return err;
if (sk->sk_state != TCP_ESTABLISHED)
return -ENOTCONN;
if (msg->msg_namelen)
msg->msg_namelen = 0;
return unix_dgram_sendmsg(kiocb, sock, msg, len);
}
| null | 0 | static int unix_seqpacket_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct msghdr *msg, size_t len)
{
int err;
struct sock *sk = sock->sk;
err = sock_error(sk);
if (err)
return err;
if (sk->sk_state != TCP_ESTABLISHED)
return -ENOTCONN;
if (msg->msg_namelen)
msg->msg_namelen = 0;
return unix_dgram_sendmsg(kiocb, sock, msg, len);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,479 | static void unix_set_peek_off(struct sock *sk, int val)
{
struct unix_sock *u = unix_sk(sk);
mutex_lock(&u->readlock);
sk->sk_peek_off = val;
mutex_unlock(&u->readlock);
}
| null | 0 | static void unix_set_peek_off(struct sock *sk, int val)
{
struct unix_sock *u = unix_sk(sk);
mutex_lock(&u->readlock);
sk->sk_peek_off = val;
mutex_unlock(&u->readlock);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,480 | static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)
{ }
| null | 0 | static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)
{ }
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,481 | static int unix_shutdown(struct socket *sock, int mode)
{
struct sock *sk = sock->sk;
struct sock *other;
mode = (mode+1)&(RCV_SHUTDOWN|SEND_SHUTDOWN);
if (!mode)
return 0;
unix_state_lock(sk);
sk->sk_shutdown |= mode;
other = unix_peer(sk);
if (other)
sock_hold(other);
unix_state_unlock(sk);
sk->sk_state_change(sk);
if (other &&
(sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)) {
int peer_mode = 0;
if (mode&RCV_SHUTDOWN)
peer_mode |= SEND_SHUTDOWN;
if (mode&SEND_SHUTDOWN)
peer_mode |= RCV_SHUTDOWN;
unix_state_lock(other);
other->sk_shutdown |= peer_mode;
unix_state_unlock(other);
other->sk_state_change(other);
if (peer_mode == SHUTDOWN_MASK)
sk_wake_async(other, SOCK_WAKE_WAITD, POLL_HUP);
else if (peer_mode & RCV_SHUTDOWN)
sk_wake_async(other, SOCK_WAKE_WAITD, POLL_IN);
}
if (other)
sock_put(other);
return 0;
}
| null | 0 | static int unix_shutdown(struct socket *sock, int mode)
{
struct sock *sk = sock->sk;
struct sock *other;
mode = (mode+1)&(RCV_SHUTDOWN|SEND_SHUTDOWN);
if (!mode)
return 0;
unix_state_lock(sk);
sk->sk_shutdown |= mode;
other = unix_peer(sk);
if (other)
sock_hold(other);
unix_state_unlock(sk);
sk->sk_state_change(sk);
if (other &&
(sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)) {
int peer_mode = 0;
if (mode&RCV_SHUTDOWN)
peer_mode |= SEND_SHUTDOWN;
if (mode&SEND_SHUTDOWN)
peer_mode |= RCV_SHUTDOWN;
unix_state_lock(other);
other->sk_shutdown |= peer_mode;
unix_state_unlock(other);
other->sk_state_change(other);
if (peer_mode == SHUTDOWN_MASK)
sk_wake_async(other, SOCK_WAKE_WAITD, POLL_HUP);
else if (peer_mode & RCV_SHUTDOWN)
sk_wake_async(other, SOCK_WAKE_WAITD, POLL_IN);
}
if (other)
sock_put(other);
return 0;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,482 | static void unix_sock_destructor(struct sock *sk)
{
struct unix_sock *u = unix_sk(sk);
skb_queue_purge(&sk->sk_receive_queue);
WARN_ON(atomic_read(&sk->sk_wmem_alloc));
WARN_ON(!sk_unhashed(sk));
WARN_ON(sk->sk_socket);
if (!sock_flag(sk, SOCK_DEAD)) {
printk(KERN_INFO "Attempt to release alive unix socket: %p\n", sk);
return;
}
if (u->addr)
unix_release_addr(u->addr);
atomic_long_dec(&unix_nr_socks);
local_bh_disable();
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
local_bh_enable();
#ifdef UNIX_REFCNT_DEBUG
printk(KERN_DEBUG "UNIX %p is destroyed, %ld are still alive.\n", sk,
atomic_long_read(&unix_nr_socks));
#endif
}
| null | 0 | static void unix_sock_destructor(struct sock *sk)
{
struct unix_sock *u = unix_sk(sk);
skb_queue_purge(&sk->sk_receive_queue);
WARN_ON(atomic_read(&sk->sk_wmem_alloc));
WARN_ON(!sk_unhashed(sk));
WARN_ON(sk->sk_socket);
if (!sock_flag(sk, SOCK_DEAD)) {
printk(KERN_INFO "Attempt to release alive unix socket: %p\n", sk);
return;
}
if (u->addr)
unix_release_addr(u->addr);
atomic_long_dec(&unix_nr_socks);
local_bh_disable();
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
local_bh_enable();
#ifdef UNIX_REFCNT_DEBUG
printk(KERN_DEBUG "UNIX %p is destroyed, %ld are still alive.\n", sk,
atomic_long_read(&unix_nr_socks));
#endif
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,483 | static int unix_socketpair(struct socket *socka, struct socket *sockb)
{
struct sock *ska = socka->sk, *skb = sockb->sk;
/* Join our sockets back to back */
sock_hold(ska);
sock_hold(skb);
unix_peer(ska) = skb;
unix_peer(skb) = ska;
init_peercred(ska);
init_peercred(skb);
if (ska->sk_type != SOCK_DGRAM) {
ska->sk_state = TCP_ESTABLISHED;
skb->sk_state = TCP_ESTABLISHED;
socka->state = SS_CONNECTED;
sockb->state = SS_CONNECTED;
}
return 0;
}
| null | 0 | static int unix_socketpair(struct socket *socka, struct socket *sockb)
{
struct sock *ska = socka->sk, *skb = sockb->sk;
/* Join our sockets back to back */
sock_hold(ska);
sock_hold(skb);
unix_peer(ska) = skb;
unix_peer(skb) = ska;
init_peercred(ska);
init_peercred(skb);
if (ska->sk_type != SOCK_DGRAM) {
ska->sk_state = TCP_ESTABLISHED;
skb->sk_state = TCP_ESTABLISHED;
socka->state = SS_CONNECTED;
sockb->state = SS_CONNECTED;
}
return 0;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,484 | static struct hlist_head *unix_sockets_unbound(void *addr)
{
unsigned long hash = (unsigned long)addr;
hash ^= hash >> 16;
hash ^= hash >> 8;
hash %= UNIX_HASH_SIZE;
return &unix_socket_table[UNIX_HASH_SIZE + hash];
}
| null | 0 | static struct hlist_head *unix_sockets_unbound(void *addr)
{
unsigned long hash = (unsigned long)addr;
hash ^= hash >> 16;
hash ^= hash >> 8;
hash %= UNIX_HASH_SIZE;
return &unix_socket_table[UNIX_HASH_SIZE + hash];
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,485 | static void unix_state_double_lock(struct sock *sk1, struct sock *sk2)
{
if (unlikely(sk1 == sk2) || !sk2) {
unix_state_lock(sk1);
return;
}
if (sk1 < sk2) {
unix_state_lock(sk1);
unix_state_lock_nested(sk2);
} else {
unix_state_lock(sk2);
unix_state_lock_nested(sk1);
}
}
| null | 0 | static void unix_state_double_lock(struct sock *sk1, struct sock *sk2)
{
if (unlikely(sk1 == sk2) || !sk2) {
unix_state_lock(sk1);
return;
}
if (sk1 < sk2) {
unix_state_lock(sk1);
unix_state_lock_nested(sk2);
} else {
unix_state_lock(sk2);
unix_state_lock_nested(sk1);
}
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,486 | static void unix_state_double_unlock(struct sock *sk1, struct sock *sk2)
{
if (unlikely(sk1 == sk2) || !sk2) {
unix_state_unlock(sk1);
return;
}
unix_state_unlock(sk1);
unix_state_unlock(sk2);
}
| null | 0 | static void unix_state_double_unlock(struct sock *sk1, struct sock *sk2)
{
if (unlikely(sk1 == sk2) || !sk2) {
unix_state_unlock(sk1);
return;
}
unix_state_unlock(sk1);
unix_state_unlock(sk2);
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,487 | static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
int addr_len, int flags)
{
struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk), *newu, *otheru;
struct sock *newsk = NULL;
struct sock *other = NULL;
struct sk_buff *skb = NULL;
unsigned int hash;
int st;
int err;
long timeo;
err = unix_mkname(sunaddr, addr_len, &hash);
if (err < 0)
goto out;
addr_len = err;
if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr &&
(err = unix_autobind(sock)) != 0)
goto out;
timeo = sock_sndtimeo(sk, flags & O_NONBLOCK);
/* First of all allocate resources.
If we will make it after state is locked,
we will have to recheck all again in any case.
*/
err = -ENOMEM;
/* create new sock for complete connection */
newsk = unix_create1(sock_net(sk), NULL);
if (newsk == NULL)
goto out;
/* Allocate skb for sending to listening sock */
skb = sock_wmalloc(newsk, 1, 0, GFP_KERNEL);
if (skb == NULL)
goto out;
restart:
/* Find listening sock. */
other = unix_find_other(net, sunaddr, addr_len, sk->sk_type, hash, &err);
if (!other)
goto out;
/* Latch state of peer */
unix_state_lock(other);
/* Apparently VFS overslept socket death. Retry. */
if (sock_flag(other, SOCK_DEAD)) {
unix_state_unlock(other);
sock_put(other);
goto restart;
}
err = -ECONNREFUSED;
if (other->sk_state != TCP_LISTEN)
goto out_unlock;
if (other->sk_shutdown & RCV_SHUTDOWN)
goto out_unlock;
if (unix_recvq_full(other)) {
err = -EAGAIN;
if (!timeo)
goto out_unlock;
timeo = unix_wait_for_peer(other, timeo);
err = sock_intr_errno(timeo);
if (signal_pending(current))
goto out;
sock_put(other);
goto restart;
}
/* Latch our state.
It is tricky place. We need to grab our state lock and cannot
drop lock on peer. It is dangerous because deadlock is
possible. Connect to self case and simultaneous
attempt to connect are eliminated by checking socket
state. other is TCP_LISTEN, if sk is TCP_LISTEN we
check this before attempt to grab lock.
Well, and we have to recheck the state after socket locked.
*/
st = sk->sk_state;
switch (st) {
case TCP_CLOSE:
/* This is ok... continue with connect */
break;
case TCP_ESTABLISHED:
/* Socket is already connected */
err = -EISCONN;
goto out_unlock;
default:
err = -EINVAL;
goto out_unlock;
}
unix_state_lock_nested(sk);
if (sk->sk_state != st) {
unix_state_unlock(sk);
unix_state_unlock(other);
sock_put(other);
goto restart;
}
err = security_unix_stream_connect(sk, other, newsk);
if (err) {
unix_state_unlock(sk);
goto out_unlock;
}
/* The way is open! Fastly set all the necessary fields... */
sock_hold(sk);
unix_peer(newsk) = sk;
newsk->sk_state = TCP_ESTABLISHED;
newsk->sk_type = sk->sk_type;
init_peercred(newsk);
newu = unix_sk(newsk);
RCU_INIT_POINTER(newsk->sk_wq, &newu->peer_wq);
otheru = unix_sk(other);
/* copy address information from listening to new sock*/
if (otheru->addr) {
atomic_inc(&otheru->addr->refcnt);
newu->addr = otheru->addr;
}
if (otheru->path.dentry) {
path_get(&otheru->path);
newu->path = otheru->path;
}
/* Set credentials */
copy_peercred(sk, other);
sock->state = SS_CONNECTED;
sk->sk_state = TCP_ESTABLISHED;
sock_hold(newsk);
smp_mb__after_atomic_inc(); /* sock_hold() does an atomic_inc() */
unix_peer(sk) = newsk;
unix_state_unlock(sk);
/* take ten and and send info to listening sock */
spin_lock(&other->sk_receive_queue.lock);
__skb_queue_tail(&other->sk_receive_queue, skb);
spin_unlock(&other->sk_receive_queue.lock);
unix_state_unlock(other);
other->sk_data_ready(other, 0);
sock_put(other);
return 0;
out_unlock:
if (other)
unix_state_unlock(other);
out:
kfree_skb(skb);
if (newsk)
unix_release_sock(newsk, 0);
if (other)
sock_put(other);
return err;
}
| null | 0 | static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
int addr_len, int flags)
{
struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk), *newu, *otheru;
struct sock *newsk = NULL;
struct sock *other = NULL;
struct sk_buff *skb = NULL;
unsigned int hash;
int st;
int err;
long timeo;
err = unix_mkname(sunaddr, addr_len, &hash);
if (err < 0)
goto out;
addr_len = err;
if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr &&
(err = unix_autobind(sock)) != 0)
goto out;
timeo = sock_sndtimeo(sk, flags & O_NONBLOCK);
/* First of all allocate resources.
If we will make it after state is locked,
we will have to recheck all again in any case.
*/
err = -ENOMEM;
/* create new sock for complete connection */
newsk = unix_create1(sock_net(sk), NULL);
if (newsk == NULL)
goto out;
/* Allocate skb for sending to listening sock */
skb = sock_wmalloc(newsk, 1, 0, GFP_KERNEL);
if (skb == NULL)
goto out;
restart:
/* Find listening sock. */
other = unix_find_other(net, sunaddr, addr_len, sk->sk_type, hash, &err);
if (!other)
goto out;
/* Latch state of peer */
unix_state_lock(other);
/* Apparently VFS overslept socket death. Retry. */
if (sock_flag(other, SOCK_DEAD)) {
unix_state_unlock(other);
sock_put(other);
goto restart;
}
err = -ECONNREFUSED;
if (other->sk_state != TCP_LISTEN)
goto out_unlock;
if (other->sk_shutdown & RCV_SHUTDOWN)
goto out_unlock;
if (unix_recvq_full(other)) {
err = -EAGAIN;
if (!timeo)
goto out_unlock;
timeo = unix_wait_for_peer(other, timeo);
err = sock_intr_errno(timeo);
if (signal_pending(current))
goto out;
sock_put(other);
goto restart;
}
/* Latch our state.
It is tricky place. We need to grab our state lock and cannot
drop lock on peer. It is dangerous because deadlock is
possible. Connect to self case and simultaneous
attempt to connect are eliminated by checking socket
state. other is TCP_LISTEN, if sk is TCP_LISTEN we
check this before attempt to grab lock.
Well, and we have to recheck the state after socket locked.
*/
st = sk->sk_state;
switch (st) {
case TCP_CLOSE:
/* This is ok... continue with connect */
break;
case TCP_ESTABLISHED:
/* Socket is already connected */
err = -EISCONN;
goto out_unlock;
default:
err = -EINVAL;
goto out_unlock;
}
unix_state_lock_nested(sk);
if (sk->sk_state != st) {
unix_state_unlock(sk);
unix_state_unlock(other);
sock_put(other);
goto restart;
}
err = security_unix_stream_connect(sk, other, newsk);
if (err) {
unix_state_unlock(sk);
goto out_unlock;
}
/* The way is open! Fastly set all the necessary fields... */
sock_hold(sk);
unix_peer(newsk) = sk;
newsk->sk_state = TCP_ESTABLISHED;
newsk->sk_type = sk->sk_type;
init_peercred(newsk);
newu = unix_sk(newsk);
RCU_INIT_POINTER(newsk->sk_wq, &newu->peer_wq);
otheru = unix_sk(other);
/* copy address information from listening to new sock*/
if (otheru->addr) {
atomic_inc(&otheru->addr->refcnt);
newu->addr = otheru->addr;
}
if (otheru->path.dentry) {
path_get(&otheru->path);
newu->path = otheru->path;
}
/* Set credentials */
copy_peercred(sk, other);
sock->state = SS_CONNECTED;
sk->sk_state = TCP_ESTABLISHED;
sock_hold(newsk);
smp_mb__after_atomic_inc(); /* sock_hold() does an atomic_inc() */
unix_peer(sk) = newsk;
unix_state_unlock(sk);
/* take ten and and send info to listening sock */
spin_lock(&other->sk_receive_queue.lock);
__skb_queue_tail(&other->sk_receive_queue, skb);
spin_unlock(&other->sk_receive_queue.lock);
unix_state_unlock(other);
other->sk_data_ready(other, 0);
sock_put(other);
return 0;
out_unlock:
if (other)
unix_state_unlock(other);
out:
kfree_skb(skb);
if (newsk)
unix_release_sock(newsk, 0);
if (other)
sock_put(other);
return err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,488 | static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size,
int flags)
{
struct sock_iocb *siocb = kiocb_to_siocb(iocb);
struct scm_cookie tmp_scm;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
struct sockaddr_un *sunaddr = msg->msg_name;
int copied = 0;
int check_creds = 0;
int target;
int err = 0;
long timeo;
int skip;
err = -EINVAL;
if (sk->sk_state != TCP_ESTABLISHED)
goto out;
err = -EOPNOTSUPP;
if (flags&MSG_OOB)
goto out;
target = sock_rcvlowat(sk, flags&MSG_WAITALL, size);
timeo = sock_rcvtimeo(sk, flags&MSG_DONTWAIT);
msg->msg_namelen = 0;
/* Lock the socket to prevent queue disordering
* while sleeps in memcpy_tomsg
*/
if (!siocb->scm) {
siocb->scm = &tmp_scm;
memset(&tmp_scm, 0, sizeof(tmp_scm));
}
err = mutex_lock_interruptible(&u->readlock);
if (err) {
err = sock_intr_errno(timeo);
goto out;
}
skip = sk_peek_offset(sk, flags);
do {
int chunk;
struct sk_buff *skb;
unix_state_lock(sk);
skb = skb_peek(&sk->sk_receive_queue);
again:
if (skb == NULL) {
unix_sk(sk)->recursion_level = 0;
if (copied >= target)
goto unlock;
/*
* POSIX 1003.1g mandates this order.
*/
err = sock_error(sk);
if (err)
goto unlock;
if (sk->sk_shutdown & RCV_SHUTDOWN)
goto unlock;
unix_state_unlock(sk);
err = -EAGAIN;
if (!timeo)
break;
mutex_unlock(&u->readlock);
timeo = unix_stream_data_wait(sk, timeo);
if (signal_pending(current)
|| mutex_lock_interruptible(&u->readlock)) {
err = sock_intr_errno(timeo);
goto out;
}
continue;
unlock:
unix_state_unlock(sk);
break;
}
if (skip >= skb->len) {
skip -= skb->len;
skb = skb_peek_next(skb, &sk->sk_receive_queue);
goto again;
}
unix_state_unlock(sk);
if (check_creds) {
/* Never glue messages from different writers */
if ((UNIXCB(skb).pid != siocb->scm->pid) ||
(UNIXCB(skb).cred != siocb->scm->cred))
break;
} else {
/* Copy credentials */
scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).cred);
check_creds = 1;
}
/* Copy address just once */
if (sunaddr) {
unix_copy_addr(msg, skb->sk);
sunaddr = NULL;
}
chunk = min_t(unsigned int, skb->len - skip, size);
if (memcpy_toiovec(msg->msg_iov, skb->data + skip, chunk)) {
if (copied == 0)
copied = -EFAULT;
break;
}
copied += chunk;
size -= chunk;
/* Mark read part of skb as used */
if (!(flags & MSG_PEEK)) {
skb_pull(skb, chunk);
sk_peek_offset_bwd(sk, chunk);
if (UNIXCB(skb).fp)
unix_detach_fds(siocb->scm, skb);
if (skb->len)
break;
skb_unlink(skb, &sk->sk_receive_queue);
consume_skb(skb);
if (siocb->scm->fp)
break;
} else {
/* It is questionable, see note in unix_dgram_recvmsg.
*/
if (UNIXCB(skb).fp)
siocb->scm->fp = scm_fp_dup(UNIXCB(skb).fp);
sk_peek_offset_fwd(sk, chunk);
break;
}
} while (size);
mutex_unlock(&u->readlock);
scm_recv(sock, msg, siocb->scm, flags);
out:
return copied ? : err;
}
| null | 0 | static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size,
int flags)
{
struct sock_iocb *siocb = kiocb_to_siocb(iocb);
struct scm_cookie tmp_scm;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
struct sockaddr_un *sunaddr = msg->msg_name;
int copied = 0;
int check_creds = 0;
int target;
int err = 0;
long timeo;
int skip;
err = -EINVAL;
if (sk->sk_state != TCP_ESTABLISHED)
goto out;
err = -EOPNOTSUPP;
if (flags&MSG_OOB)
goto out;
target = sock_rcvlowat(sk, flags&MSG_WAITALL, size);
timeo = sock_rcvtimeo(sk, flags&MSG_DONTWAIT);
msg->msg_namelen = 0;
/* Lock the socket to prevent queue disordering
* while sleeps in memcpy_tomsg
*/
if (!siocb->scm) {
siocb->scm = &tmp_scm;
memset(&tmp_scm, 0, sizeof(tmp_scm));
}
err = mutex_lock_interruptible(&u->readlock);
if (err) {
err = sock_intr_errno(timeo);
goto out;
}
skip = sk_peek_offset(sk, flags);
do {
int chunk;
struct sk_buff *skb;
unix_state_lock(sk);
skb = skb_peek(&sk->sk_receive_queue);
again:
if (skb == NULL) {
unix_sk(sk)->recursion_level = 0;
if (copied >= target)
goto unlock;
/*
* POSIX 1003.1g mandates this order.
*/
err = sock_error(sk);
if (err)
goto unlock;
if (sk->sk_shutdown & RCV_SHUTDOWN)
goto unlock;
unix_state_unlock(sk);
err = -EAGAIN;
if (!timeo)
break;
mutex_unlock(&u->readlock);
timeo = unix_stream_data_wait(sk, timeo);
if (signal_pending(current)
|| mutex_lock_interruptible(&u->readlock)) {
err = sock_intr_errno(timeo);
goto out;
}
continue;
unlock:
unix_state_unlock(sk);
break;
}
if (skip >= skb->len) {
skip -= skb->len;
skb = skb_peek_next(skb, &sk->sk_receive_queue);
goto again;
}
unix_state_unlock(sk);
if (check_creds) {
/* Never glue messages from different writers */
if ((UNIXCB(skb).pid != siocb->scm->pid) ||
(UNIXCB(skb).cred != siocb->scm->cred))
break;
} else {
/* Copy credentials */
scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).cred);
check_creds = 1;
}
/* Copy address just once */
if (sunaddr) {
unix_copy_addr(msg, skb->sk);
sunaddr = NULL;
}
chunk = min_t(unsigned int, skb->len - skip, size);
if (memcpy_toiovec(msg->msg_iov, skb->data + skip, chunk)) {
if (copied == 0)
copied = -EFAULT;
break;
}
copied += chunk;
size -= chunk;
/* Mark read part of skb as used */
if (!(flags & MSG_PEEK)) {
skb_pull(skb, chunk);
sk_peek_offset_bwd(sk, chunk);
if (UNIXCB(skb).fp)
unix_detach_fds(siocb->scm, skb);
if (skb->len)
break;
skb_unlink(skb, &sk->sk_receive_queue);
consume_skb(skb);
if (siocb->scm->fp)
break;
} else {
/* It is questionable, see note in unix_dgram_recvmsg.
*/
if (UNIXCB(skb).fp)
siocb->scm->fp = scm_fp_dup(UNIXCB(skb).fp);
sk_peek_offset_fwd(sk, chunk);
break;
}
} while (size);
mutex_unlock(&u->readlock);
scm_recv(sock, msg, siocb->scm, flags);
out:
return copied ? : err;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,489 | static inline int unix_writable(struct sock *sk)
{
return (atomic_read(&sk->sk_wmem_alloc) << 2) <= sk->sk_sndbuf;
}
| null | 0 | static inline int unix_writable(struct sock *sk)
{
return (atomic_read(&sk->sk_wmem_alloc) << 2) <= sk->sk_sndbuf;
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,490 | static void unix_write_space(struct sock *sk)
{
struct socket_wq *wq;
rcu_read_lock();
if (unix_writable(sk)) {
wq = rcu_dereference(sk->sk_wq);
if (wq_has_sleeper(wq))
wake_up_interruptible_sync_poll(&wq->wait,
POLLOUT | POLLWRNORM | POLLWRBAND);
sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
}
rcu_read_unlock();
}
| null | 0 | static void unix_write_space(struct sock *sk)
{
struct socket_wq *wq;
rcu_read_lock();
if (unix_writable(sk)) {
wq = rcu_dereference(sk->sk_wq);
if (wq_has_sleeper(wq))
wake_up_interruptible_sync_poll(&wq->wait,
POLLOUT | POLLWRNORM | POLLWRBAND);
sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
}
rcu_read_unlock();
}
| @@ -1450,7 +1450,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
@@ -1619,7 +1619,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm);
+ err = scm_send(sock, msg, siocb->scm, false);
if (err < 0)
return err;
| CWE-287 | null | null |
15,491 | static long madvise_behavior(struct vm_area_struct * vma,
struct vm_area_struct **prev,
unsigned long start, unsigned long end, int behavior)
{
struct mm_struct * mm = vma->vm_mm;
int error = 0;
pgoff_t pgoff;
unsigned long new_flags = vma->vm_flags;
switch (behavior) {
case MADV_NORMAL:
new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
break;
case MADV_SEQUENTIAL:
new_flags = (new_flags & ~VM_RAND_READ) | VM_SEQ_READ;
break;
case MADV_RANDOM:
new_flags = (new_flags & ~VM_SEQ_READ) | VM_RAND_READ;
break;
case MADV_DONTFORK:
new_flags |= VM_DONTCOPY;
break;
case MADV_DOFORK:
if (vma->vm_flags & VM_IO) {
error = -EINVAL;
goto out;
}
new_flags &= ~VM_DONTCOPY;
break;
case MADV_DONTDUMP:
new_flags |= VM_NODUMP;
break;
case MADV_DODUMP:
new_flags &= ~VM_NODUMP;
break;
case MADV_MERGEABLE:
case MADV_UNMERGEABLE:
error = ksm_madvise(vma, start, end, behavior, &new_flags);
if (error)
goto out;
break;
case MADV_HUGEPAGE:
case MADV_NOHUGEPAGE:
error = hugepage_madvise(vma, &new_flags, behavior);
if (error)
goto out;
break;
}
if (new_flags == vma->vm_flags) {
*prev = vma;
goto out;
}
pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,
vma->vm_file, pgoff, vma_policy(vma));
if (*prev) {
vma = *prev;
goto success;
}
*prev = vma;
if (start != vma->vm_start) {
error = split_vma(mm, vma, start, 1);
if (error)
goto out;
}
if (end != vma->vm_end) {
error = split_vma(mm, vma, end, 0);
if (error)
goto out;
}
success:
/*
* vm_flags is protected by the mmap_sem held in write mode.
*/
vma->vm_flags = new_flags;
out:
if (error == -ENOMEM)
error = -EAGAIN;
return error;
}
| DoS | 0 | static long madvise_behavior(struct vm_area_struct * vma,
struct vm_area_struct **prev,
unsigned long start, unsigned long end, int behavior)
{
struct mm_struct * mm = vma->vm_mm;
int error = 0;
pgoff_t pgoff;
unsigned long new_flags = vma->vm_flags;
switch (behavior) {
case MADV_NORMAL:
new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
break;
case MADV_SEQUENTIAL:
new_flags = (new_flags & ~VM_RAND_READ) | VM_SEQ_READ;
break;
case MADV_RANDOM:
new_flags = (new_flags & ~VM_SEQ_READ) | VM_RAND_READ;
break;
case MADV_DONTFORK:
new_flags |= VM_DONTCOPY;
break;
case MADV_DOFORK:
if (vma->vm_flags & VM_IO) {
error = -EINVAL;
goto out;
}
new_flags &= ~VM_DONTCOPY;
break;
case MADV_DONTDUMP:
new_flags |= VM_NODUMP;
break;
case MADV_DODUMP:
new_flags &= ~VM_NODUMP;
break;
case MADV_MERGEABLE:
case MADV_UNMERGEABLE:
error = ksm_madvise(vma, start, end, behavior, &new_flags);
if (error)
goto out;
break;
case MADV_HUGEPAGE:
case MADV_NOHUGEPAGE:
error = hugepage_madvise(vma, &new_flags, behavior);
if (error)
goto out;
break;
}
if (new_flags == vma->vm_flags) {
*prev = vma;
goto out;
}
pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,
vma->vm_file, pgoff, vma_policy(vma));
if (*prev) {
vma = *prev;
goto success;
}
*prev = vma;
if (start != vma->vm_start) {
error = split_vma(mm, vma, start, 1);
if (error)
goto out;
}
if (end != vma->vm_end) {
error = split_vma(mm, vma, end, 0);
if (error)
goto out;
}
success:
/*
* vm_flags is protected by the mmap_sem held in write mode.
*/
vma->vm_flags = new_flags;
out:
if (error == -ENOMEM)
error = -EAGAIN;
return error;
}
| @@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/ksm.h>
#include <linux/fs.h>
+#include <linux/file.h>
/*
* Any behaviour which results in changes to the vma->vm_flags needs to
@@ -204,14 +205,16 @@ static long madvise_remove(struct vm_area_struct *vma,
{
loff_t offset;
int error;
+ struct file *f;
*prev = NULL; /* tell sys_madvise we drop mmap_sem */
if (vma->vm_flags & (VM_LOCKED|VM_NONLINEAR|VM_HUGETLB))
return -EINVAL;
- if (!vma->vm_file || !vma->vm_file->f_mapping
- || !vma->vm_file->f_mapping->host) {
+ f = vma->vm_file;
+
+ if (!f || !f->f_mapping || !f->f_mapping->host) {
return -EINVAL;
}
@@ -221,11 +224,18 @@ static long madvise_remove(struct vm_area_struct *vma,
offset = (loff_t)(start - vma->vm_start)
+ ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- /* filesystem's fallocate may need to take i_mutex */
+ /*
+ * Filesystem's fallocate may need to take i_mutex. We need to
+ * explicitly grab a reference because the vma (and hence the
+ * vma's reference to the file) can go away as soon as we drop
+ * mmap_sem.
+ */
+ get_file(f);
up_read(¤t->mm->mmap_sem);
- error = do_fallocate(vma->vm_file,
+ error = do_fallocate(f,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
offset, end - start);
+ fput(f);
down_read(¤t->mm->mmap_sem);
return error;
} | CWE-362 | null | null |
15,492 | madvise_behavior_valid(int behavior)
{
switch (behavior) {
case MADV_DOFORK:
case MADV_DONTFORK:
case MADV_NORMAL:
case MADV_SEQUENTIAL:
case MADV_RANDOM:
case MADV_REMOVE:
case MADV_WILLNEED:
case MADV_DONTNEED:
#ifdef CONFIG_KSM
case MADV_MERGEABLE:
case MADV_UNMERGEABLE:
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
case MADV_HUGEPAGE:
case MADV_NOHUGEPAGE:
#endif
case MADV_DONTDUMP:
case MADV_DODUMP:
return 1;
default:
return 0;
}
}
| DoS | 0 | madvise_behavior_valid(int behavior)
{
switch (behavior) {
case MADV_DOFORK:
case MADV_DONTFORK:
case MADV_NORMAL:
case MADV_SEQUENTIAL:
case MADV_RANDOM:
case MADV_REMOVE:
case MADV_WILLNEED:
case MADV_DONTNEED:
#ifdef CONFIG_KSM
case MADV_MERGEABLE:
case MADV_UNMERGEABLE:
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
case MADV_HUGEPAGE:
case MADV_NOHUGEPAGE:
#endif
case MADV_DONTDUMP:
case MADV_DODUMP:
return 1;
default:
return 0;
}
}
| @@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/ksm.h>
#include <linux/fs.h>
+#include <linux/file.h>
/*
* Any behaviour which results in changes to the vma->vm_flags needs to
@@ -204,14 +205,16 @@ static long madvise_remove(struct vm_area_struct *vma,
{
loff_t offset;
int error;
+ struct file *f;
*prev = NULL; /* tell sys_madvise we drop mmap_sem */
if (vma->vm_flags & (VM_LOCKED|VM_NONLINEAR|VM_HUGETLB))
return -EINVAL;
- if (!vma->vm_file || !vma->vm_file->f_mapping
- || !vma->vm_file->f_mapping->host) {
+ f = vma->vm_file;
+
+ if (!f || !f->f_mapping || !f->f_mapping->host) {
return -EINVAL;
}
@@ -221,11 +224,18 @@ static long madvise_remove(struct vm_area_struct *vma,
offset = (loff_t)(start - vma->vm_start)
+ ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- /* filesystem's fallocate may need to take i_mutex */
+ /*
+ * Filesystem's fallocate may need to take i_mutex. We need to
+ * explicitly grab a reference because the vma (and hence the
+ * vma's reference to the file) can go away as soon as we drop
+ * mmap_sem.
+ */
+ get_file(f);
up_read(¤t->mm->mmap_sem);
- error = do_fallocate(vma->vm_file,
+ error = do_fallocate(f,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
offset, end - start);
+ fput(f);
down_read(¤t->mm->mmap_sem);
return error;
} | CWE-362 | null | null |
15,493 | static int madvise_hwpoison(int bhv, unsigned long start, unsigned long end)
{
int ret = 0;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
for (; start < end; start += PAGE_SIZE) {
struct page *p;
int ret = get_user_pages_fast(start, 1, 0, &p);
if (ret != 1)
return ret;
if (bhv == MADV_SOFT_OFFLINE) {
printk(KERN_INFO "Soft offlining page %lx at %lx\n",
page_to_pfn(p), start);
ret = soft_offline_page(p, MF_COUNT_INCREASED);
if (ret)
break;
continue;
}
printk(KERN_INFO "Injecting memory failure for page %lx at %lx\n",
page_to_pfn(p), start);
/* Ignore return value for now */
memory_failure(page_to_pfn(p), 0, MF_COUNT_INCREASED);
}
return ret;
}
| DoS | 0 | static int madvise_hwpoison(int bhv, unsigned long start, unsigned long end)
{
int ret = 0;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
for (; start < end; start += PAGE_SIZE) {
struct page *p;
int ret = get_user_pages_fast(start, 1, 0, &p);
if (ret != 1)
return ret;
if (bhv == MADV_SOFT_OFFLINE) {
printk(KERN_INFO "Soft offlining page %lx at %lx\n",
page_to_pfn(p), start);
ret = soft_offline_page(p, MF_COUNT_INCREASED);
if (ret)
break;
continue;
}
printk(KERN_INFO "Injecting memory failure for page %lx at %lx\n",
page_to_pfn(p), start);
/* Ignore return value for now */
memory_failure(page_to_pfn(p), 0, MF_COUNT_INCREASED);
}
return ret;
}
| @@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/ksm.h>
#include <linux/fs.h>
+#include <linux/file.h>
/*
* Any behaviour which results in changes to the vma->vm_flags needs to
@@ -204,14 +205,16 @@ static long madvise_remove(struct vm_area_struct *vma,
{
loff_t offset;
int error;
+ struct file *f;
*prev = NULL; /* tell sys_madvise we drop mmap_sem */
if (vma->vm_flags & (VM_LOCKED|VM_NONLINEAR|VM_HUGETLB))
return -EINVAL;
- if (!vma->vm_file || !vma->vm_file->f_mapping
- || !vma->vm_file->f_mapping->host) {
+ f = vma->vm_file;
+
+ if (!f || !f->f_mapping || !f->f_mapping->host) {
return -EINVAL;
}
@@ -221,11 +224,18 @@ static long madvise_remove(struct vm_area_struct *vma,
offset = (loff_t)(start - vma->vm_start)
+ ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- /* filesystem's fallocate may need to take i_mutex */
+ /*
+ * Filesystem's fallocate may need to take i_mutex. We need to
+ * explicitly grab a reference because the vma (and hence the
+ * vma's reference to the file) can go away as soon as we drop
+ * mmap_sem.
+ */
+ get_file(f);
up_read(¤t->mm->mmap_sem);
- error = do_fallocate(vma->vm_file,
+ error = do_fallocate(f,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
offset, end - start);
+ fput(f);
down_read(¤t->mm->mmap_sem);
return error;
} | CWE-362 | null | null |
15,494 | static int madvise_need_mmap_write(int behavior)
{
switch (behavior) {
case MADV_REMOVE:
case MADV_WILLNEED:
case MADV_DONTNEED:
return 0;
default:
/* be safe, default to 1. list exceptions explicitly */
return 1;
}
}
| DoS | 0 | static int madvise_need_mmap_write(int behavior)
{
switch (behavior) {
case MADV_REMOVE:
case MADV_WILLNEED:
case MADV_DONTNEED:
return 0;
default:
/* be safe, default to 1. list exceptions explicitly */
return 1;
}
}
| @@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/ksm.h>
#include <linux/fs.h>
+#include <linux/file.h>
/*
* Any behaviour which results in changes to the vma->vm_flags needs to
@@ -204,14 +205,16 @@ static long madvise_remove(struct vm_area_struct *vma,
{
loff_t offset;
int error;
+ struct file *f;
*prev = NULL; /* tell sys_madvise we drop mmap_sem */
if (vma->vm_flags & (VM_LOCKED|VM_NONLINEAR|VM_HUGETLB))
return -EINVAL;
- if (!vma->vm_file || !vma->vm_file->f_mapping
- || !vma->vm_file->f_mapping->host) {
+ f = vma->vm_file;
+
+ if (!f || !f->f_mapping || !f->f_mapping->host) {
return -EINVAL;
}
@@ -221,11 +224,18 @@ static long madvise_remove(struct vm_area_struct *vma,
offset = (loff_t)(start - vma->vm_start)
+ ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- /* filesystem's fallocate may need to take i_mutex */
+ /*
+ * Filesystem's fallocate may need to take i_mutex. We need to
+ * explicitly grab a reference because the vma (and hence the
+ * vma's reference to the file) can go away as soon as we drop
+ * mmap_sem.
+ */
+ get_file(f);
up_read(¤t->mm->mmap_sem);
- error = do_fallocate(vma->vm_file,
+ error = do_fallocate(f,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
offset, end - start);
+ fput(f);
down_read(¤t->mm->mmap_sem);
return error;
} | CWE-362 | null | null |
15,495 | static long madvise_willneed(struct vm_area_struct * vma,
struct vm_area_struct ** prev,
unsigned long start, unsigned long end)
{
struct file *file = vma->vm_file;
if (!file)
return -EBADF;
if (file->f_mapping->a_ops->get_xip_mem) {
/* no bad return value, but ignore advice */
return 0;
}
*prev = vma;
start = ((start - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
if (end > vma->vm_end)
end = vma->vm_end;
end = ((end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
force_page_cache_readahead(file->f_mapping, file, start, end - start);
return 0;
}
| DoS | 0 | static long madvise_willneed(struct vm_area_struct * vma,
struct vm_area_struct ** prev,
unsigned long start, unsigned long end)
{
struct file *file = vma->vm_file;
if (!file)
return -EBADF;
if (file->f_mapping->a_ops->get_xip_mem) {
/* no bad return value, but ignore advice */
return 0;
}
*prev = vma;
start = ((start - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
if (end > vma->vm_end)
end = vma->vm_end;
end = ((end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
force_page_cache_readahead(file->f_mapping, file, start, end - start);
return 0;
}
| @@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/ksm.h>
#include <linux/fs.h>
+#include <linux/file.h>
/*
* Any behaviour which results in changes to the vma->vm_flags needs to
@@ -204,14 +205,16 @@ static long madvise_remove(struct vm_area_struct *vma,
{
loff_t offset;
int error;
+ struct file *f;
*prev = NULL; /* tell sys_madvise we drop mmap_sem */
if (vma->vm_flags & (VM_LOCKED|VM_NONLINEAR|VM_HUGETLB))
return -EINVAL;
- if (!vma->vm_file || !vma->vm_file->f_mapping
- || !vma->vm_file->f_mapping->host) {
+ f = vma->vm_file;
+
+ if (!f || !f->f_mapping || !f->f_mapping->host) {
return -EINVAL;
}
@@ -221,11 +224,18 @@ static long madvise_remove(struct vm_area_struct *vma,
offset = (loff_t)(start - vma->vm_start)
+ ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- /* filesystem's fallocate may need to take i_mutex */
+ /*
+ * Filesystem's fallocate may need to take i_mutex. We need to
+ * explicitly grab a reference because the vma (and hence the
+ * vma's reference to the file) can go away as soon as we drop
+ * mmap_sem.
+ */
+ get_file(f);
up_read(¤t->mm->mmap_sem);
- error = do_fallocate(vma->vm_file,
+ error = do_fallocate(f,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
offset, end - start);
+ fput(f);
down_read(¤t->mm->mmap_sem);
return error;
} | CWE-362 | null | null |
15,496 | void acct_clear_integrals(struct task_struct *tsk)
{
tsk->acct_stimexpd = 0;
tsk->acct_rss_mem1 = 0;
tsk->acct_vm_mem1 = 0;
}
| DoS +Info | 0 | void acct_clear_integrals(struct task_struct *tsk)
{
tsk->acct_stimexpd = 0;
tsk->acct_rss_mem1 = 0;
tsk->acct_vm_mem1 = 0;
}
| @@ -80,13 +80,17 @@ void bacct_add_tsk(struct taskstats *stats, struct task_struct *tsk)
*/
void xacct_add_tsk(struct taskstats *stats, struct task_struct *p)
{
+ struct mm_struct *mm;
+
/* convert pages-jiffies to Mbyte-usec */
stats->coremem = jiffies_to_usecs(p->acct_rss_mem1) * PAGE_SIZE / MB;
stats->virtmem = jiffies_to_usecs(p->acct_vm_mem1) * PAGE_SIZE / MB;
- if (p->mm) {
+ mm = get_task_mm(p);
+ if (mm) {
/* adjust to KB unit */
- stats->hiwater_rss = p->mm->hiwater_rss * PAGE_SIZE / KB;
- stats->hiwater_vm = p->mm->hiwater_vm * PAGE_SIZE / KB;
+ stats->hiwater_rss = mm->hiwater_rss * PAGE_SIZE / KB;
+ stats->hiwater_vm = mm->hiwater_vm * PAGE_SIZE / KB;
+ mmput(mm);
}
stats->read_char = p->rchar;
stats->write_char = p->wchar; | CWE-399 | null | null |
15,497 | void bacct_add_tsk(struct taskstats *stats, struct task_struct *tsk)
{
struct timespec uptime, ts;
s64 ac_etime;
BUILD_BUG_ON(TS_COMM_LEN < TASK_COMM_LEN);
/* calculate task elapsed time in timespec */
do_posix_clock_monotonic_gettime(&uptime);
ts = timespec_sub(uptime, tsk->start_time);
/* rebase elapsed time to usec */
ac_etime = timespec_to_ns(&ts);
do_div(ac_etime, NSEC_PER_USEC);
stats->ac_etime = ac_etime;
stats->ac_btime = xtime.tv_sec - ts.tv_sec;
if (thread_group_leader(tsk)) {
stats->ac_exitcode = tsk->exit_code;
if (tsk->flags & PF_FORKNOEXEC)
stats->ac_flag |= AFORK;
}
if (tsk->flags & PF_SUPERPRIV)
stats->ac_flag |= ASU;
if (tsk->flags & PF_DUMPCORE)
stats->ac_flag |= ACORE;
if (tsk->flags & PF_SIGNALED)
stats->ac_flag |= AXSIG;
stats->ac_nice = task_nice(tsk);
stats->ac_sched = tsk->policy;
stats->ac_uid = tsk->uid;
stats->ac_gid = tsk->gid;
stats->ac_pid = tsk->pid;
rcu_read_lock();
stats->ac_ppid = pid_alive(tsk) ?
rcu_dereference(tsk->real_parent)->tgid : 0;
rcu_read_unlock();
stats->ac_utime = cputime_to_msecs(tsk->utime) * USEC_PER_MSEC;
stats->ac_stime = cputime_to_msecs(tsk->stime) * USEC_PER_MSEC;
stats->ac_minflt = tsk->min_flt;
stats->ac_majflt = tsk->maj_flt;
strncpy(stats->ac_comm, tsk->comm, sizeof(stats->ac_comm));
}
| DoS +Info | 0 | void bacct_add_tsk(struct taskstats *stats, struct task_struct *tsk)
{
struct timespec uptime, ts;
s64 ac_etime;
BUILD_BUG_ON(TS_COMM_LEN < TASK_COMM_LEN);
/* calculate task elapsed time in timespec */
do_posix_clock_monotonic_gettime(&uptime);
ts = timespec_sub(uptime, tsk->start_time);
/* rebase elapsed time to usec */
ac_etime = timespec_to_ns(&ts);
do_div(ac_etime, NSEC_PER_USEC);
stats->ac_etime = ac_etime;
stats->ac_btime = xtime.tv_sec - ts.tv_sec;
if (thread_group_leader(tsk)) {
stats->ac_exitcode = tsk->exit_code;
if (tsk->flags & PF_FORKNOEXEC)
stats->ac_flag |= AFORK;
}
if (tsk->flags & PF_SUPERPRIV)
stats->ac_flag |= ASU;
if (tsk->flags & PF_DUMPCORE)
stats->ac_flag |= ACORE;
if (tsk->flags & PF_SIGNALED)
stats->ac_flag |= AXSIG;
stats->ac_nice = task_nice(tsk);
stats->ac_sched = tsk->policy;
stats->ac_uid = tsk->uid;
stats->ac_gid = tsk->gid;
stats->ac_pid = tsk->pid;
rcu_read_lock();
stats->ac_ppid = pid_alive(tsk) ?
rcu_dereference(tsk->real_parent)->tgid : 0;
rcu_read_unlock();
stats->ac_utime = cputime_to_msecs(tsk->utime) * USEC_PER_MSEC;
stats->ac_stime = cputime_to_msecs(tsk->stime) * USEC_PER_MSEC;
stats->ac_minflt = tsk->min_flt;
stats->ac_majflt = tsk->maj_flt;
strncpy(stats->ac_comm, tsk->comm, sizeof(stats->ac_comm));
}
| @@ -80,13 +80,17 @@ void bacct_add_tsk(struct taskstats *stats, struct task_struct *tsk)
*/
void xacct_add_tsk(struct taskstats *stats, struct task_struct *p)
{
+ struct mm_struct *mm;
+
/* convert pages-jiffies to Mbyte-usec */
stats->coremem = jiffies_to_usecs(p->acct_rss_mem1) * PAGE_SIZE / MB;
stats->virtmem = jiffies_to_usecs(p->acct_vm_mem1) * PAGE_SIZE / MB;
- if (p->mm) {
+ mm = get_task_mm(p);
+ if (mm) {
/* adjust to KB unit */
- stats->hiwater_rss = p->mm->hiwater_rss * PAGE_SIZE / KB;
- stats->hiwater_vm = p->mm->hiwater_vm * PAGE_SIZE / KB;
+ stats->hiwater_rss = mm->hiwater_rss * PAGE_SIZE / KB;
+ stats->hiwater_vm = mm->hiwater_vm * PAGE_SIZE / KB;
+ mmput(mm);
}
stats->read_char = p->rchar;
stats->write_char = p->wchar; | CWE-399 | null | null |
15,498 | void rds_clear_recv_queue(struct rds_sock *rs)
{
struct sock *sk = rds_rs_to_sk(rs);
struct rds_incoming *inc, *tmp;
unsigned long flags;
write_lock_irqsave(&rs->rs_recv_lock, flags);
list_for_each_entry_safe(inc, tmp, &rs->rs_recv_queue, i_item) {
rds_recv_rcvbuf_delta(rs, sk, inc->i_conn->c_lcong,
-be32_to_cpu(inc->i_hdr.h_len),
inc->i_hdr.h_dport);
list_del_init(&inc->i_item);
rds_inc_put(inc);
}
write_unlock_irqrestore(&rs->rs_recv_lock, flags);
}
| +Info | 0 | void rds_clear_recv_queue(struct rds_sock *rs)
{
struct sock *sk = rds_rs_to_sk(rs);
struct rds_incoming *inc, *tmp;
unsigned long flags;
write_lock_irqsave(&rs->rs_recv_lock, flags);
list_for_each_entry_safe(inc, tmp, &rs->rs_recv_queue, i_item) {
rds_recv_rcvbuf_delta(rs, sk, inc->i_conn->c_lcong,
-be32_to_cpu(inc->i_hdr.h_len),
inc->i_hdr.h_dport);
list_del_init(&inc->i_item);
rds_inc_put(inc);
}
write_unlock_irqrestore(&rs->rs_recv_lock, flags);
}
| @@ -410,6 +410,8 @@ int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
rdsdebug("size %zu flags 0x%x timeo %ld\n", size, msg_flags, timeo);
+ msg->msg_namelen = 0;
+
if (msg_flags & MSG_OOB)
goto out;
@@ -485,6 +487,7 @@ int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
sin->sin_port = inc->i_hdr.h_sport;
sin->sin_addr.s_addr = inc->i_saddr;
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+ msg->msg_namelen = sizeof(*sin);
}
break;
} | CWE-200 | null | null |
15,499 | static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg)
{
int ret = 0;
if (inc->i_rdma_cookie) {
ret = put_cmsg(msg, SOL_RDS, RDS_CMSG_RDMA_DEST,
sizeof(inc->i_rdma_cookie), &inc->i_rdma_cookie);
if (ret)
return ret;
}
return 0;
}
| +Info | 0 | static int rds_cmsg_recv(struct rds_incoming *inc, struct msghdr *msg)
{
int ret = 0;
if (inc->i_rdma_cookie) {
ret = put_cmsg(msg, SOL_RDS, RDS_CMSG_RDMA_DEST,
sizeof(inc->i_rdma_cookie), &inc->i_rdma_cookie);
if (ret)
return ret;
}
return 0;
}
| @@ -410,6 +410,8 @@ int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
rdsdebug("size %zu flags 0x%x timeo %ld\n", size, msg_flags, timeo);
+ msg->msg_namelen = 0;
+
if (msg_flags & MSG_OOB)
goto out;
@@ -485,6 +487,7 @@ int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
sin->sin_port = inc->i_hdr.h_sport;
sin->sin_addr.s_addr = inc->i_saddr;
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+ msg->msg_namelen = sizeof(*sin);
}
break;
} | CWE-200 | null | null |
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