From: Marcin Slusarz <marcin.slusarz@gmail.com>
Date: Sun, 21 Oct 2012 23:59:20 +0000 (+1000)
Subject: drm/nouveau: validate vbios size
X-Git-Tag: v3.7-rc3~45^2~6^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=00e4845bad84689fbaacc86bc54a0b99d5d3c1fc;p=pandora-kernel.git

drm/nouveau: validate vbios size

Without checking, we could detect vbios size as 0, allocate 0-byte array
(kmalloc returns invalid pointer for such allocation) and crash in
nouveau_bios_score while checking for vbios signature.

Reported-by: Heinz Diehl <htd@fritha.org>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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