diff options
| author | Xi Wang <xi.wang@gmail.com> | 2012-04-23 04:06:42 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-07 08:53:22 -0700 |
| commit | 9f4660213e58b3b78dc75bf3e3b4126dbe9a0b14 (patch) | |
| tree | 305c5be400f35c8571c6012109565d834a9daf33 /arch | |
| parent | 4a265435c87b19175c3906ff49ffe5bf4a4cc228 (diff) | |
drm/i915: fix integer overflow in i915_gem_do_execbuffer()
commit 44afb3a04391a74309d16180d1e4f8386fdfa745 upstream.
On 32-bit systems, a large args->num_cliprects from userspace via ioctl
may overflow the allocation size, leading to out-of-bounds access.
This vulnerability was introduced in commit 432e58ed ("drm/i915: Avoid
allocation for execbuffer object list").
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions