CVE-2026-89813

drm/amdgpu: force complete the KIQ ring fences on reset

CVE-2026-89813 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-89813, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0022
12th percentile

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: force complete the KIQ ring fences on reset Like the MES scheduler ring, the KIQ ring sets no_scheduler = true and uses a polling fence, so it is skipped by the force-completion loop in amdgpu_device_pre_asic_reset(). Its hw fence value lives in wb (GTT) memory and survives a MODE1 reset while fence_drv.sync_seq keeps advancing, so after a reset the first KIQ submission can poll forever on a seq that is never written back. Force complete the KIQ ring fences too so their hw fence is realigned to sync_seq.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 13.5 (trixie) 6.12.115-2 DEBIAN-CVE-2026-89813 Sep 23, 2026
linux · Debian 14 7.2.6-1 DEBIAN-CVE-2026-89813 Sep 23, 2026

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