The vulnerability of the amdgpu_userq_get_doorbell_index() function in the drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c source code of the Direct Rendering Infrastructure (DRI) driver for AMD GPU cores in the Linux operating system allows a attacker to compromise the integrity of protected information or cause service failures.

The vulnerability of the amdgpuuserqgetdoorbellindex function in the drivers/gpu/drm/amd/amdgpu/amdgpuuserq.c source code of the Direct Rendering Infrastructure DRI driver for AMD GPU cores in the Linux operating system is related to the execution of operations outside of memory buffers. Exploiti...

PT-2026-36401

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The amdgpu userq get doorbell index function passes a user-provided doorbell offset to amdgpu doorbell index on bar without performing bounds checking. An excessively large doorbell offs...