linux-cve-announce - CVE-2023-53707: drm/amdgpu: Fix integer overflow in amdgpu_cs

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Message-ID: <2025102212-CVE-2023-53707-361a@gregkh>
Date: Wed, 22 Oct 2025 15:24:46 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53707: drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1

From: Greg Kroah-Hartman <gregkh@...nel.org>

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

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

drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1

The type of size is unsigned int, if size is 0x40000000, there will
be an integer overflow, size will be zero after size *= sizeof(uint32_t),
will cause uninitialized memory to be referenced later.

The Linux kernel CVE team has assigned CVE-2023-53707 to this issue.


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

	Fixed in 6.1.47 with commit 9f55d300541cb5b435984d269087810581580b00
	Fixed in 6.4.12 with commit c3deb091398e9e469d08dd1599b6d76fd6b29df8
	Fixed in 6.5 with commit 87c2213e85bd81e4a9a4d0880c256568794ae388

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-2023-53707
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/amd/amdgpu/amdgpu_cs.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/9f55d300541cb5b435984d269087810581580b00
	https://git.kernel.org/stable/c/c3deb091398e9e469d08dd1599b6d76fd6b29df8
	https://git.kernel.org/stable/c/87c2213e85bd81e4a9a4d0880c256568794ae388