CVE-2026-31566
kernel: drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 24, 2026
Updated · September 24, 2026
Description
A flaw was found in the Linux kernel's AMD GPU (amdgpu) driver. An issue in the amdgpu_amdkfd_submit_ib function allows a local user to trigger a use-after-free vulnerability. This occurs because a fence reference is incorrectly released before waiting for job completion, potentially freeing the memory prematurely. This could lead to system instability or denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
CWE-821 · Incorrect Synchronization