From: Michel Hermier <hermier@frugalware.org>
Date: Sat, 25 Dec 2010 15:58:56 +0000 (+0100)
Subject: drm/nouveau: Validate channel indices passed from userspace.
X-Git-Tag: v2.6.38-rc1~419^2~4^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e91182bbdb8591be4835907d825a5b9a80495a9;p=pandora-kernel.git

drm/nouveau: Validate channel indices passed from userspace.

When hacking the libdrm for improvements, I triggered a kernel crash
related to the fact that the NOUVEAU_NOTIFIEROBJ_ALLOC ioctl calls
nouveau_channel_get with an unchecked channel index.
The patch ensures that the channel index is an unsigned and validates
its value in nouveau_channel_get.

Signed-off-by: Michel Hermier <hermier@frugalware.org>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---

Reading git-diff-tree failed