CVE-2026-53293

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