linux-cve-announce - CVE-2024-53115: drm/vmwgfx: avoid null_ptr_deref in vmw_framebuffer_surface_create

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Message-ID: <2024120250-CVE-2024-53115-fd6e@gregkh>
Date: Mon,  2 Dec 2024 14:52:54 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53115: drm/vmwgfx: avoid null_ptr_deref in vmw_framebuffer_surface_create_handle

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: avoid null_ptr_deref in vmw_framebuffer_surface_create_handle

The 'vmw_user_object_buffer' function may return NULL with incorrect
inputs. To avoid possible null pointer dereference, add a check whether
the 'bo' is NULL in the vmw_framebuffer_surface_create_handle.

The Linux kernel CVE team has assigned CVE-2024-53115 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 6.11 with commit d6667f0ddf46 and fixed in 6.11.10 with commit 36f64da08055
	Issue introduced in 6.11 with commit d6667f0ddf46 and fixed in 6.12 with commit 93d1f41a82de
	Issue introduced in 6.10.4 with commit af6441e6f3d4

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2024-53115
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/gpu/drm/vmwgfx/vmwgfx_kms.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/36f64da080555175b58d85f99f5f90435e274e56
	https://git.kernel.org/stable/c/93d1f41a82de382845af460bf03bcb17dcbf08c5