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medium5.5

CVE-2026-53293

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.

Impact

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)

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 6.6.55 before 6.6.141
from 6.10.14 before 6.11
from 6.11.3 before 6.12.91
from 6.13 before 6.18.33
from 6.19 before 7.0.10
Version 7.1

Weakness classification

CWE-667

References