tree a65b65d58e52bb05b3f08c6610f5d6345e5f4879
parent ab7ad7f6451580aa7eccc0ba62807c872088a8f9
author Chris Wilson <chris@chris-wilson.co.uk> 1285530605 +0100
committer Chris Wilson <chris@chris-wilson.co.uk> 1286111777 +0100

drm/i915: Sanity check pread/pwrite

Move the access control up from the fast paths, which are no longer
universally taken first, up into the caller. This then duplicates some
sanity checking along the slow paths, but is much simpler.
Tracked as CVE-2010-2962.

Reported-by: Kees Cook <kees@ubuntu.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org