appletalk: Fix socket referencing in skb
[ 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>
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committed by
Greg Kroah-Hartman
parent
76fd3c89bb
commit
d5f758a35b
@@ -1489,8 +1489,6 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev,
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goto drop;
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/* Queue packet (standard) */
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skb->sk = sock;
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if (sock_queue_rcv_skb(sock, skb) < 0)
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goto drop;
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@@ -1644,7 +1642,6 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
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if (!skb)
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goto out;
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skb->sk = sk;
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skb_reserve(skb, ddp_dl->header_length);
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skb_reserve(skb, dev->hard_header_len);
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skb->dev = dev;
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