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Message-ID: <2024051758-CVE-2023-52657-628c@gregkh>
Date: Fri, 17 May 2024 13:51:59 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2023-52657: Revert "drm/amd/pm: resolve reboot exception for si oland"

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

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

Revert "drm/amd/pm: resolve reboot exception for si oland"

This reverts commit e490d60a2f76bff636c68ce4fe34c1b6c34bbd86.

This causes hangs on SI when DC is enabled and errors on driver
reboot and power off cycles.

The Linux kernel CVE team has assigned CVE-2023-52657 to this issue.


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

	Issue introduced in 6.4 with commit e490d60a2f76 and fixed in 6.1.81 with commit 2e443ed55fe3
	Issue introduced in 6.4 with commit e490d60a2f76 and fixed in 6.6.21 with commit baac292852c0
	Issue introduced in 6.4 with commit e490d60a2f76 and fixed in 6.7.9 with commit c51468ac328d
	Issue introduced in 6.4 with commit e490d60a2f76 and fixed in 6.8 with commit 955558030954

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-2023-52657
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/pm/legacy-dpm/si_dpm.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/2e443ed55fe3ffb08327b331a9f45e9382413c94
	https://git.kernel.org/stable/c/baac292852c0e347626fb5436916947188e5838f
	https://git.kernel.org/stable/c/c51468ac328d3922747be55507c117e47da813e6
	https://git.kernel.org/stable/c/955558030954b9637b41c97b730f9b38c92ac488

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