In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: fix AMDGPUINFOREADMMRREG
There were multiple issues in that code.
First of all the order between the reset semaphore and the mmlock was wrong (e.g. copyto_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 downreadtrylock() instead of waiting for the reset to finish.
(cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53293.json",
"cna_assigner": "Linux"
}