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authorEric Dumazet <edumazet@google.com>2018-04-07 13:42:39 -0700
committerDavid S. Miller <davem@davemloft.net>2018-04-07 22:32:31 -0400
commitb13dda9f9aa7caceeee61c080c2e544d5f5d85e5 (patch)
tree9a5d1163611e1f95613f9f9ef43355c74357d884 /net/core
parentb1993a2de12c9e75c35729e2ffbc3a92d50c0d31 (diff)
downloadop-kernel-dev-b13dda9f9aa7caceeee61c080c2e544d5f5d85e5.zip
op-kernel-dev-b13dda9f9aa7caceeee61c080c2e544d5f5d85e5.tar.gz
net: initialize skb->peeked when cloning
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") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/skbuff.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 1bca1e0..345b518 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -857,6 +857,7 @@ 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);
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