CVE-2026-68250: drm/amdgpu/sdma5.2: replace BUG_ON() with WARN_ON()

Greg Kroah-Hartman <[email protected]>
Newsgroups org.kernel.vger.linux-cve-announce
Message-ID <2026081020-CVE-2026-68250-d65c@gregkh>
From: Greg Kroah-Hartman <[email protected]>

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

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

drm/amdgpu/sdma5.2: replace BUG_ON() with WARN_ON()

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

(cherry picked from commit ae658afc7f47f6147371ec42cc6b1a793dfdb5af)

The Linux kernel CVE team has assigned CVE-2026-68250 to this issue.


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

	Fixed in 6.6.148 with commit 01dfea84df919cfbec4064151d327480ae5c120d
	Fixed in 6.12.101 with commit b665c1845488c6cd869da3d31b5978015977f898
	Fixed in 6.18.42 with commit 09da54636bac146c1a3c461c4e7eb08d355bb86e
	Fixed in 7.1.6 with commit 2051bbbfbd44ff51637b01a5a3dbee6630f90d57
	Fixed in 7.2-rc2 with commit b9dd618a635d39fbb211454b6e8837b2a7f10fb0

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-2026-68250
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_v5_2.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/01dfea84df919cfbec4064151d327480ae5c120d
	https://git.kernel.org/stable/c/b665c1845488c6cd869da3d31b5978015977f898
	https://git.kernel.org/stable/c/09da54636bac146c1a3c461c4e7eb08d355bb86e
	https://git.kernel.org/stable/c/2051bbbfbd44ff51637b01a5a3dbee6630f90d57
	https://git.kernel.org/stable/c/b9dd618a635d39fbb211454b6e8837b2a7f10fb0
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