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Old 01-18-2012, 02:24 PM
Tim Gardner
Default APPLIED: drm clip overflow

On 01/18/2012 05:54 AM, Andy Whitcroft wrote:

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.


Tim Gardner tim.gardner@canonical.com

kernel-team mailing list

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