summaryrefslogtreecommitdiffstats
path: root/net/core/sock_map.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2019-09-15 14:17:27 +0200
committerDavid S. Miller <davem@davemloft.net>2019-09-15 14:17:27 +0200
commitaa2eaa8c272a3211dec07ce9c6c863a7e355c10e (patch)
tree8454a23d36b2ff36133c276ee0ba80eabc00850e /net/core/sock_map.c
parenta3d3c74da49c65fc63a937fa559186b0e16adca3 (diff)
parent1609d7604b847a9820e63393d1a3b6cac7286d40 (diff)
downloadblackbird-op-linux-aa2eaa8c272a3211dec07ce9c6c863a7e355c10e.tar.gz
blackbird-op-linux-aa2eaa8c272a3211dec07ce9c6c863a7e355c10e.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor overlapping changes in the btusb and ixgbe drivers. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sock_map.c')
-rw-r--r--net/core/sock_map.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 01998860afaa..eb114ee419b6 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -656,6 +656,7 @@ static int sock_hash_update_common(struct bpf_map *map, void *key,
struct sock *sk, u64 flags)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
+ struct inet_connection_sock *icsk = inet_csk(sk);
u32 key_size = map->key_size, hash;
struct bpf_htab_elem *elem, *elem_new;
struct bpf_htab_bucket *bucket;
@@ -666,6 +667,8 @@ static int sock_hash_update_common(struct bpf_map *map, void *key,
WARN_ON_ONCE(!rcu_read_lock_held());
if (unlikely(flags > BPF_EXIST))
return -EINVAL;
+ if (unlikely(icsk->icsk_ulp_data))
+ return -EINVAL;
link = sk_psock_init_link();
if (!link)
OpenPOWER on IntegriCloud