tree b6e8af3812192ca5d8a60c51faaa9a025dbe7a5e
parent 0d0bf6674136eb861b37213160b16388cfc1926d
author Sasha Levin <sasha.levin@oracle.com> 1362013408 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1362021012 -0800

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>