CVE-2026-23264: Linux kernel · Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 6.8.0-1057.60~22.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-1057.60~22.04.1, 6.8.0-1059.65~22.04.1, 6.8.0-1058.65~22.04.1 +30
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10linuxpkg:deb/ubuntu/linux?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and included in updated Linux kernel packages for the affected Ubuntu releases. Users should update their systems to the fixed kernel versions and reboot to apply the changes. Due to an ABI change in the kernel update, all third-party kernel modules must be recompiled and reinstalled. Follow the vendor advisory instructions for updating and rebuilding kernel modules. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel related to the AMD GPU driver was resolved by reverting a commit that caused crashes on systems with two AMD GPUs where only one supports ASPM. This issue led to very hard to debug crashes but did not impact confidentiality or integrity. The vulnerability has a medium severity with a CVSS score of 5.5 and affects multiple Linux kernel versions prior to 6.8.0-1057.60~22.04.1 and similar builds. A patch is available and included in updated Linux kernel packages. Users should update and reboot to apply the fix. The update requires recompilation of third-party kernel modules due to an ABI change. No known exploits are reported in the wild.
References
- ubuntu.com/security/CVE-2026-23264 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-23264 (opens in a new tab)
- git.kernel.org/linus/243b467dea1735fed904c2e54d248a46fa417a2d (opens in a new tab)
- git.kernel.org/stable/c/243b467dea1735fed904c2e54d248a46fa417a2d (opens in a new tab)
- git.kernel.org/stable/c/5b794951541e84d2968980a68dd1ac38420f75f3 (opens in a new tab)
- git.kernel.org/stable/c/5f645222eb30c91135119e12eccfd1b8ea88140e (opens in a new tab)
- git.kernel.org/stable/c/d2bddc2da2b3ba5d738877c476bf97932dba32e8 (opens in a new tab)
- git.kernel.org/stable/c/f02c9052aaa031ef3c2285d86a155d4263180ddd (opens in a new tab)
- ubuntu.com/security/notices/USN-8278-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8289-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8296-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8296-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8289-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8278-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8393-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8440-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8499-1 (opens in a new tab)