| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 50/87] appletalk: Fix socket referencing in skb | Date | Sat, 26 Jul 2014 12:02:24 -0700 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Andrey Utkin <andrey.krieger.utkin@gmail.com>
[ Upstream commit 36beddc272c111689f3042bf3d10a64d8a805f93 ]
Setting just skb->sk without taking its reference and setting a destructor is invalid. However, in the places where this was done, skb is used in a way not requiring skb->sk setting. So dropping the setting of skb->sk. Thanks to Eric Dumazet <eric.dumazet@gmail.com> for correct solution.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=79441 Reported-by: Ed Martin <edman007@edman007.com> Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/appletalk/ddp.c | 3 --- 1 file changed, 3 deletions(-)
--- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1489,8 +1489,6 @@ static int atalk_rcv(struct sk_buff *skb goto drop; /* Queue packet (standard) */ - skb->sk = sock; - if (sock_queue_rcv_skb(sock, skb) < 0) goto drop; @@ -1644,7 +1642,6 @@ static int atalk_sendmsg(struct kiocb *i if (!skb) goto out; - skb->sk = sk; skb_reserve(skb, ddp_dl->header_length); skb_reserve(skb, dev->hard_header_len); skb->dev = dev;
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