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drm: fix unsigned vs signed comparison issue in modeset ctl ioctl.

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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>
This commit is contained in:
Dave Airlie
2011-02-24 08:35:06 +10:00
parent 3c0556e967
commit 1922756124
2 changed files with 3 additions and 2 deletions
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2
include/drm/drmP.h
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@ -1101,7 +1101,7 @@ struct drm_device {
struct platform_device *platformdev; /**< Platform device struture */
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;