linux-cve-announce - CVE-2023-53074: drm/amdgpu: fix ttm_bo calltrace warning in psp_hw

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Message-ID: <2025050214-CVE-2023-53074-3ced@gregkh>
Date: Fri,  2 May 2025 17:55:39 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53074: drm/amdgpu: fix ttm_bo calltrace warning in psp_hw_fini

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

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

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

drm/amdgpu: fix ttm_bo calltrace warning in psp_hw_fini

The call trace occurs when the amdgpu is removed after
the mode1 reset. During mode1 reset, from suspend to resume,
there is no need to reinitialize the ta firmware buffer
which caused the bo pin_count increase redundantly.

[  489.885525] Call Trace:
[  489.885525]  <TASK>
[  489.885526]  amdttm_bo_put+0x34/0x50 [amdttm]
[  489.885529]  amdgpu_bo_free_kernel+0xe8/0x130 [amdgpu]
[  489.885620]  psp_free_shared_bufs+0xb7/0x150 [amdgpu]
[  489.885720]  psp_hw_fini+0xce/0x170 [amdgpu]
[  489.885815]  amdgpu_device_fini_hw+0x2ff/0x413 [amdgpu]
[  489.885960]  ? blocking_notifier_chain_unregister+0x56/0xb0
[  489.885962]  amdgpu_driver_unload_kms+0x51/0x60 [amdgpu]
[  489.886049]  amdgpu_pci_remove+0x5a/0x140 [amdgpu]
[  489.886132]  ? __pm_runtime_resume+0x60/0x90
[  489.886134]  pci_device_remove+0x3e/0xb0
[  489.886135]  __device_release_driver+0x1ab/0x2a0
[  489.886137]  driver_detach+0xf3/0x140
[  489.886138]  bus_remove_driver+0x6c/0xf0
[  489.886140]  driver_unregister+0x31/0x60
[  489.886141]  pci_unregister_driver+0x40/0x90
[  489.886142]  amdgpu_exit+0x15/0x451 [amdgpu]

The Linux kernel CVE team has assigned CVE-2023-53074 to this issue.


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

	Fixed in 6.1.21 with commit 7be9a2f8c5179520a7d5570e648e0c97d09e4fae
	Fixed in 6.2.8 with commit 55a7c647ebf6e376c45d8322568dd6eb71937139
	Fixed in 6.3 with commit 23f4a2d29ba57bf88095f817de5809d427fcbe7e

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-2023-53074
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_psp.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/7be9a2f8c5179520a7d5570e648e0c97d09e4fae
	https://git.kernel.org/stable/c/55a7c647ebf6e376c45d8322568dd6eb71937139
	https://git.kernel.org/stable/c/23f4a2d29ba57bf88095f817de5809d427fcbe7e