| commit | 02a04b98adead5626a395edc21bf6d7f17611938 | |
| author | Xi Wang <xi.wang@gmail.com> | |
| Wed, 23 Nov 2011 06:12:01 +0000 (23 01:12 -0500) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Fri, 9 Dec 2011 16:54:06 +0000 (9 08:54 -0800) | ||
| tree | 1917aa6fb2010555680beea5d54367144cec126f | treesnapshot (tar.gz zip) |
| parent | 49f5bf4e65140344f6ab824571b8325b7bd95d9b | commitdiff |
drm: integer overflow in drm_mode_dirtyfb_ioctl()
commit a5cd335165e31db9dbab636fd29895d41da55dd2 upstream.
There is a potential integer overflow in drm_mode_dirtyfb_ioctl()
if userspace passes in a large num_clips. The call to kmalloc would
allocate a small buffer, and the call to fb->funcs->dirty may result
in a memory corruption.
Reported-by: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit a5cd335165e31db9dbab636fd29895d41da55dd2 upstream.
There is a potential integer overflow in drm_mode_dirtyfb_ioctl()
if userspace passes in a large num_clips. The call to kmalloc would
allocate a small buffer, and the call to fb->funcs->dirty may result
in a memory corruption.
Reported-by: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/gpu/drm/drm_crtc.c | diffblobblamehistory | |
| include/drm/drm_mode.h | diffblobblamehistory |