diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-02-24 08:35:06 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-02-28 15:24:35 +1000 |
| commit | 1922756124ddd53846877416d92ba4a802bc658f (patch) | |
| tree | 22b5b5e5457d5eab364cd2c860814b29874e56f7 /drivers/gpu/drm/drm_irq.c | |
| parent | 3c0556e9673f79e386b27768e27d18b3ce29e40e (diff) | |
| download | lwn-1922756124ddd53846877416d92ba4a802bc658f.tar.gz lwn-1922756124ddd53846877416d92ba4a802bc658f.zip | |
drm: fix unsigned vs signed comparison issue in modeset ctl ioctl.
This fixes CVE-2011-1013.
Reported-by: Matthiew Herrb (OpenBSD X.org team)
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 53120a72a48c..28d1d3c24d65 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -1012,7 +1012,8 @@ int drm_modeset_ctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_modeset_ctl *modeset = data; - int crtc, ret = 0; + int ret = 0; + unsigned int crtc; /* If drm_vblank_init() hasn't been called yet, just no-op */ if (!dev->num_crtcs) |