From: Eric Dumazet <edumazet@google.com>
Date: Mon, 2 Nov 2015 15:50:07 +0000 (-0800)
Subject: net: avoid NULL deref in inet_ctl_sock_destroy()
X-Git-Tag: v3.2.74~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f79c83d6c41930362bc66fc71489e92975a2facf;p=pandora-kernel.git

net: avoid NULL deref in inet_ctl_sock_destroy()

[ Upstream commit 8fa677d2706d325d71dab91bf6e6512c05214e37 ]

Under low memory conditions, tcp_sk_init() and icmp_sk_init()
can both iterate on all possible cpus and call inet_ctl_sock_destroy(),
with eventual NULL pointer.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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