APPLIED: [CVE-2012-0044] drm clip overflow

Tim Gardner rtg.canonical at gmail.com
Wed Jan 18 15:24:05 UTC 2012


On 01/18/2012 05:54 AM, Andy Whitcroft wrote:
> CVE-2012-0044
> 	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.
>
> This problem was introduced in maverick, and fixes for it have hit
> oneiric and later via mainline and stable.  Following this email is a
> patch for maverick, maverick/ti-omap4, natty and natty/ti-omap4.  This
> is a simple cherry-pick from mainline.
>
> Proposing for maverick, maverick/ti-omap4, natty and natty/ti-omap4.
>
> -apw
>


-- 
Tim Gardner tim.gardner at canonical.com




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