CVE-2026-68111: drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON()

CVE-2026-68111: drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON()

[Greg Kroah-Hartman]

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

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

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

drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON()

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

(cherry picked from commit b71604f8685b0eba07866f4e8dc30f93e1931054)

The Linux kernel CVE team has assigned CVE-2026-68111 to this issue.


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

	Fixed in 6.6.148 with commit 6c8b9c1f03c7169c9577098b0c3035617606f8d4
	Fixed in 6.12.101 with commit d74a6351d3f64e1f8a0fba28b369c0eeecf517f1
	Fixed in 6.18.42 with commit 042c047e8bc9c9ada7574028a8e4592102e2e1fd
	Fixed in 7.1.6 with commit 43768ad42b8f1a91652b86e0731ac14d6853cebb
	Fixed in 7.2-rc2 with commit 6302be10b521f5106ce01eb5a724b9e7945a5061

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-2026-68111
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/gfx_v9_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/6c8b9c1f03c7169c9577098b0c3035617606f8d4
	https://git.kernel.org/stable/c/d74a6351d3f64e1f8a0fba28b369c0eeecf517f1
	https://git.kernel.org/stable/c/042c047e8bc9c9ada7574028a8e4592102e2e1fd
	https://git.kernel.org/stable/c/43768ad42b8f1a91652b86e0731ac14d6853cebb
	https://git.kernel.org/stable/c/6302be10b521f5106ce01eb5a724b9e7945a5061