CVE-2026-68252: drm/amdgpu/sdma7.0: replace BUG_ON() with WARN_ON()

Greg Kroah-Hartman <[email protected]>
Newsgroups org.kernel.vger.linux-cve-announce
Message-ID <2026081020-CVE-2026-68252-4b8c@gregkh>
From: Greg Kroah-Hartman <[email protected]>

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

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

drm/amdgpu/sdma7.0: replace BUG_ON() with WARN_ON()

There's no need to crash the kernel for these cases.

(cherry picked from commit 9723a8bed3aa251a26bee4583bac9d8fb064dd44)

The Linux kernel CVE team has assigned CVE-2026-68252 to this issue.


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

	Fixed in 6.12.101 with commit 395bf099ef7153227600a2d8cb087f45c4a277b6
	Fixed in 6.18.42 with commit 4c09483325360373656214cc7a2fd29dc73037a5
	Fixed in 7.1.6 with commit bcbd53d25da879bbce75faad9888c9a56e942fec
	Fixed in 7.2-rc2 with commit e80e28f398f5d9f6e361ffb56382d2e74fc87556

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-2026-68252
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_v7_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/395bf099ef7153227600a2d8cb087f45c4a277b6
	https://git.kernel.org/stable/c/4c09483325360373656214cc7a2fd29dc73037a5
	https://git.kernel.org/stable/c/bcbd53d25da879bbce75faad9888c9a56e942fec
	https://git.kernel.org/stable/c/e80e28f398f5d9f6e361ffb56382d2e74fc87556
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