diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-02-24 08:35:06 +1000 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2011-04-17 16:16:15 -0400 |
| commit | 4507b718182f5f0e8fbd52fd29f4acbf3acb68f8 (patch) | |
| tree | 8cd894044a2a006395d15f200247147056ac066d | |
| parent | 1ccf475f3f27eed4a82e1d79ef5d5984ebaf94a6 (diff) | |
drm: fix unsigned vs signed comparison issue in modeset ctl ioctl.
commit 1922756124ddd53846877416d92ba4a802bc658f upstream.
This fixes CVE-2011-1013.
Reported-by: Matthiew Herrb (OpenBSD X.org team)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 3 | ||||
| -rw-r--r-- | include/drm/drmP.h | 2 |
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index a263b7070fc6..0ddd10995c46 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -545,7 +545,8 @@ 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) diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 2f3b3a00b7a3..b447a35a91fc 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1022,7 +1022,7 @@ struct drm_device { struct pci_controller *hose; #endif struct drm_sg_mem *sg; /**< Scatter gather memory */ - int num_crtcs; /**< Number of CRTCs on this device */ + unsigned int num_crtcs; /**< Number of CRTCs on this device */ void *dev_private; /**< device private data */ void *mm_private; struct address_space *dev_mapping; |