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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2012-09-23 19:33:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-02 10:40:03 -0700 |
| commit | 56015aefc7a036e7a6156a2b5b3eb6e975354e86 (patch) | |
| tree | 1fb3ed205815707b1a2f6985f9bf3392ef83f473 | |
| parent | d1757408bfe3adca81ff1c88fcb2d578864f8e9d (diff) | |
| download | lwn-56015aefc7a036e7a6156a2b5b3eb6e975354e86.tar.gz lwn-56015aefc7a036e7a6156a2b5b3eb6e975354e86.zip | |
vmwgfx: corruption in vmw_event_fence_action_create()
commit 68c4fce737c4b963e336435f225621dc21138397 upstream.
We don't allocate enough data for this struct. As soon as we start
modifying event->event on the next lines, then we're going beyond the
end of the memory we allocated.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index f2fb8f15e2f1..7e0743358dff 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -1018,7 +1018,7 @@ int vmw_event_fence_action_create(struct drm_file *file_priv, } - event = kzalloc(sizeof(event->event), GFP_KERNEL); + event = kzalloc(sizeof(*event), GFP_KERNEL); if (unlikely(event == NULL)) { DRM_ERROR("Failed to allocate an event.\n"); ret = -ENOMEM; |