diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 3 | ||||
| -rw-r--r-- | net/core/netpoll.c | 2 | ||||
| -rw-r--r-- | net/core/skbuff.c | 4 | ||||
| -rw-r--r-- | net/core/sock.c | 21 |
4 files changed, 26 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index e6d091dc276b..1dc4781807ce 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4873,13 +4873,14 @@ void netif_napi_add(struct net_device *dev, struct napi_struct *napi, pr_err_once("netif_napi_add() called with weight %d on device %s\n", weight, dev->name); napi->weight = weight; - list_add(&napi->dev_list, &dev->napi_list); napi->dev = dev; #ifdef CONFIG_NETPOLL spin_lock_init(&napi->poll_lock); napi->poll_owner = -1; #endif set_bit(NAPI_STATE_SCHED, &napi->state); + set_bit(NAPI_STATE_NPSVC, &napi->state); + list_add_rcu(&napi->dev_list, &dev->napi_list); } EXPORT_SYMBOL(netif_napi_add); diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 8f445f6e8328..48101b0f1aea 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -178,7 +178,7 @@ static void poll_napi(struct net_device *dev) { struct napi_struct *napi; - list_for_each_entry(napi, &dev->napi_list, dev_list) { + list_for_each_entry_rcu(napi, &dev->napi_list, dev_list) { if (napi->poll_owner != smp_processor_id() && spin_trylock(&napi->poll_lock)) { poll_one_napi(napi); diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 144f655afe8b..7b8bd8562879 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4396,8 +4396,8 @@ struct sk_buff *skb_vlan_untag(struct sk_buff *skb) skb = skb_share_check(skb, GFP_ATOMIC); if (unlikely(!skb)) goto err_free; - - if (unlikely(!pskb_may_pull(skb, VLAN_HLEN))) + /* We may access the two bytes after vlan_hdr in vlan_set_encap_proto(). */ + if (unlikely(!pskb_may_pull(skb, VLAN_HLEN + sizeof(unsigned short)))) goto err_free; vhdr = (struct vlan_hdr *)skb->data; diff --git a/net/core/sock.c b/net/core/sock.c index 66a192395398..cdf2ca201a4f 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2287,6 +2287,27 @@ int sock_no_mmap(struct file *file, struct socket *sock, struct vm_area_struct * } EXPORT_SYMBOL(sock_no_mmap); +/* + * When a file is received (via SCM_RIGHTS, etc), we must bump the + * various sock-based usage counts. + */ +void __receive_sock(struct file *file) +{ + struct socket *sock; + int error; + + /* + * The resulting value of "error" is ignored here since we only + * need to take action when the file is a socket and testing + * "sock" for NULL is sufficient. + */ + sock = sock_from_file(file, &error); + if (sock) { + sock_update_netprioidx(sock->sk); + sock_update_classid(sock->sk); + } +} + ssize_t sock_no_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags) { ssize_t res; |