CVE-2026-53293

MediumCVSS 5.5/10Last modified Nov 6, 2026

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)

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

VendorProductVersions
LinuxLinux>= 8361e3f7882876d98ba98cae0d3149450dd80912, < 8c4254c8f5836e77ae83e7fc037f02b69f7a0977; >= 9e823f307074c0f82b5f6044943b0086e3079bed, < 61957c2e467b39b528a290016367d32a433fa846; >= 9e823f307074c0f82b5f6044943b0086e3079bed, < a31c3feb54b15a90232e497ad0e27e8a82052d8d; >= 9e823f307074c0f82b5f6044943b0086e3079bed, < 5c29d20470d4566d1b68df57097d642d01f8b427; >= 9e823f307074c0f82b5f6044943b0086e3079bed, < 0ef196a208385b7d7da79f411c161b04e97283e2; 17a98c942cb106ec08564e8f43b5470a4dd5d3f6; 9a98563345697bdb1d3410ff428473b2e781f4db; >= 6.6.55, < 6.6.141; >= 6.10.14, < 6.11; >= 6.11.3, < 6.12
LinuxLinux6.12

References

Timeline

Published
Jun 26, 2026
Last modified
Nov 6, 2026
NVD status
Analyzed

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CVE-2026-53293: Medium severity, CVSS 5.5 | Vulnix