diff options
| author | Eric Dumazet <edumazet@google.com> | 2018-04-07 13:42:39 -0700 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2019-05-03 18:56:33 +0200 |
| commit | 8978d512a5c71c1ede3820e2c0f0e84455f96e38 (patch) | |
| tree | fbaa289ba21bed1702e73fea69183d5cf27f4ded /net | |
| parent | 1df1f4c9f020c5fd2e71af6880fefe70645f7e8c (diff) | |
net: initialize skb->peeked when cloning
commit b13dda9f9aa7caceeee61c080c2e544d5f5d85e5 upstream.
syzbot reported __skb_try_recv_from_queue() was using skb->peeked
while it was potentially unitialized.
We need to clear it in __skb_clone()
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Change-Id: I5af0677209eadcdbe59be81f2ac6c9ce02aa18c4
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/skbuff.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 03c950bf8..2e5febb19 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -732,6 +732,7 @@ static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb) n->hdr_len = skb->nohdr ? skb_headroom(skb) : skb->hdr_len; n->cloned = 1; n->nohdr = 0; + n->peeked = 0; n->destructor = NULL; C(tail); C(end); |