From: Eric Dumazet <edumazet@google.com>
Date: Wed, 13 Nov 2013 23:00:46 +0000 (-0800)
Subject: net-tcp: fix panic in tcp_fastopen_cache_set()
X-Git-Tag: v3.13-rc1~33^2~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dccf76ca6b626c0c4a4e09bb221adee3270ab0ef;p=pandora-kernel.git

net-tcp: fix panic in tcp_fastopen_cache_set()

We had some reports of crashes using TCP fastopen, and Dave Jones
gave a nice stack trace pointing to the error.

Issue is that tcp_get_metrics() should not be called with a NULL dst

Fixes: 1fe4c481ba637 ("net-tcp: Fast Open client - cookie cache")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dave Jones <davej@redhat.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Tested-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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