Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem"

published 2026-03-18 7 mo ago modified 2026-11-05 3 d ago also EUVD-2026-12903

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

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

This reverts commit 7294863a6f01248d72b61d38478978d638641bee.

This commit was erroneously applied again after commit 0ab5d711ec74 ("drm/amd: Refactor `amdgpu_aspm` to be evaluated per device") removed it, leading to very hard to debug crashes, when used with a system with two AMD GPUs of which only one supports ASPM.

(cherry picked from commit 97a9689300eb2b393ba5efc17c8e5db835917080)

Patch / fix

fixed in 1 distros 3 links 5

Linux Linux 5.16, 6.1.163, 6.6.124, 6.12.70, 6.18.10, 6.19

debian ubuntu suse

linux Debian 12 6.1.164-1
linux Debian 13 6.12.73-1
linux Debian 14 6.18.10-1

debian advisories DEBIAN-CVE-2026-23264

linux Ubuntu 24.04 LTS 6.8.0-117.117
linux-aws Ubuntu 24.04 LTS 6.8.0-1055.58
linux-gcp Ubuntu 24.04 LTS 6.8.0-1058.61
linux-gke Ubuntu 24.04 LTS 6.8.0-1054.60
linux-ibm Ubuntu 24.04 LTS 6.8.0-1055.56
linux-azure Ubuntu 24.04 LTS 6.8.0-1056.62
linux-gkeop Ubuntu 24.04 LTS 6.8.0-1041.44
linux-raspi Ubuntu 24.04 LTS 6.8.0-1056.60

ubuntu advisories UBUNTU-CVE-2026-23264

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.55.1
kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.55.1
kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.55.1
kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.55.1
kernel-default SLE Workstation Extension 15 SP7, SLE Module for Legacy 15 SP7, SLE Module for Basesystem 15 SP7 +2 more 6.4.0-150700.53.55.1
kernel-zfcpdump SLE Module for Basesystem 15 SP7 6.4.0-150700.53.55.1
kernel-obs-build SLE Module for Development Tools 15 SP7 6.4.0-150700.53.55.1
kernel-default-base SLE Module for Basesystem 15 SP7 6.4.0-150700.53.55.1.150700.17.33.1

suse advisories SUSE-SU-2026:2238-1 SUSE-SU-2026:21834-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-23264 updated 2026-11-07 cvss 5.5

kernel: Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem"

Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernel
affected: no fix available “Fix deferred”
Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 3 d ago (2026-11-05)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux Linux

Classification

Technology feeds

Linux kernel rss critical rss

References

Sources

CVE List CVE-2026-23264
NVD CVE-2026-23264

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary