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Commit b13dda9f authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

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: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Reported-by: default avatarsyzbot <syzkaller@googlegroups.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b1993a2d

net/core/skbuff.c

+1 −0
Original line number Diff line number Diff line
@@ -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);