CVE-2026-31766

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 offset can result in a calculated doorbell index that falls outside the allocated doorbell Buffer Object (BO), which may lead to the corruption of kernel doorbell space.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.