CVE-2026-23264: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem" 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)

Affected products

• Linux Linux Kernel: from 5.15.54, before 5.16 (fixed in 5.16); from 5.18, before 6.1.163 (fixed in 6.1.163); from 6.2, before 6.6.124 (fixed in 6.6.124); from 6.7, before 6.12.70 (fixed in 6.12.70); from 6.13, before 6.18.10 (fixed in 6.18.10); version 6.19 only

Published 2026-03-18. Last modified 2026-06-17.