From: Sasha Levin <sasha.levin@oracle.com>
Date: Thu, 28 Feb 2013 01:03:28 +0000 (-0800)
Subject: kexec: prevent double free on image allocation failure
X-Git-Tag: v3.9-rc1~46^2~124
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe88f2ee33731f0934e8fb26f762b6715e43ff6f;p=pandora-kernel.git

kexec: prevent double free on image allocation failure

If kimage_normal_alloc() fails to initialize an allocated kimage, it will
free the image but would still set 'rimage', as a result kexec_load will
try to free it again.

This would explode as part of the freeing process is accessing internal
members which point to uninitialized memory.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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