CVE-2026-53293 is a vulnerability in Linux Kernel
Published on June 26, 2026
drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG
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)
Products Associated with CVE-2026-53293
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Affected Versions
Linux:- Version 8361e3f7882876d98ba98cae0d3149450dd80912 and below 8c4254c8f5836e77ae83e7fc037f02b69f7a0977 is affected.
- Version 9e823f307074c0f82b5f6044943b0086e3079bed and below 61957c2e467b39b528a290016367d32a433fa846 is affected.
- Version 9e823f307074c0f82b5f6044943b0086e3079bed and below a31c3feb54b15a90232e497ad0e27e8a82052d8d is affected.
- Version 9e823f307074c0f82b5f6044943b0086e3079bed and below 5c29d20470d4566d1b68df57097d642d01f8b427 is affected.
- Version 9e823f307074c0f82b5f6044943b0086e3079bed and below 0ef196a208385b7d7da79f411c161b04e97283e2 is affected.
- Version 17a98c942cb106ec08564e8f43b5470a4dd5d3f6 is affected.
- Version 9a98563345697bdb1d3410ff428473b2e781f4db is affected.
- Version 6.6.55 and below 6.6.141 is affected.
- Version 6.10.14 and below 6.11 is affected.
- Version 6.11.3 and below 6.12 is affected.
- Version 6.12 is affected.
- Before 6.12 is unaffected.
- Version 6.6.141, <= 6.6.* is unaffected.
- Version 6.12.91, <= 6.12.* is unaffected.
- Version 6.18.33, <= 6.18.* is unaffected.
- Version 7.0.10, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.