linux-cve-announce - CVE-2023-53547: drm/amdgpu: Fix sdma v4 sw fini error

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Message-ID: <2025100446-CVE-2023-53547-38ce@gregkh>
Date: Sat,  4 Oct 2025 17:17:01 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53547: drm/amdgpu: Fix sdma v4 sw fini error

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

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

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

drm/amdgpu: Fix sdma v4 sw fini error

Fix sdma v4 sw fini error for sdma 4.2.2 to
solve the following general protection fault

[  +0.108196] general protection fault, probably for non-canonical
address 0xd5e5a4ae79d24a32: 0000 [#1] PREEMPT SMP PTI
[  +0.000018] RIP: 0010:free_fw_priv+0xd/0x70
[  +0.000022] Call Trace:
[  +0.000012]  <TASK>
[  +0.000011]  release_firmware+0x55/0x80
[  +0.000021]  amdgpu_ucode_release+0x11/0x20 [amdgpu]
[  +0.000415]  amdgpu_sdma_destroy_inst_ctx+0x4f/0x90 [amdgpu]
[  +0.000360]  sdma_v4_0_sw_fini+0xce/0x110 [amdgpu]

The Linux kernel CVE team has assigned CVE-2023-53547 to this issue.


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

	Fixed in 6.1.30 with commit 210ef6cd8e634f18fd889421012192b81325b27b
	Fixed in 6.3.4 with commit 0ebc02d9ff85626a526353584526da6aa9c96792
	Fixed in 6.4 with commit 5e08e9c742a00384e5abe74bd40cf4dc15cb3a2e

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-2023-53547
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/sdma_v4_0.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/210ef6cd8e634f18fd889421012192b81325b27b
	https://git.kernel.org/stable/c/0ebc02d9ff85626a526353584526da6aa9c96792
	https://git.kernel.org/stable/c/5e08e9c742a00384e5abe74bd40cf4dc15cb3a2e