CVE-2026-89813

INFO Priority: 0.00 BB Relevance: 0/100
Published: 2026-09-16 Modified: 2026-10-30 First seen: 2026-10-30 Status: pending_score

Description

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.

Affected Software (7)

VendorProductVersion
Linux Linux 65781c78ad74e4260fbec92c0ecc05738044e177 < 83c54ed3be2f71a21e0f12ce5ca64435e33ba440
Linux Linux 65781c78ad74e4260fbec92c0ecc05738044e177 < 11adb2bae30a3155395594e5c9bc0daf0c4ffa15
Linux Linux 65781c78ad74e4260fbec92c0ecc05738044e177 < 9944329e409b04d71fa22f39b38a4bd78b75bcd9
Linux Linux 65781c78ad74e4260fbec92c0ecc05738044e177 < c26cbd5c33cd72daa03079235de60688a3c97c52
Linux Linux 65781c78ad74e4260fbec92c0ecc05738044e177 < bdd6a58743e00ebc6d52b9cdf9aafb4e535e0b71
Linux Linux 65781c78ad74e4260fbec92c0ecc05738044e177 < fd65d1742992361fc2201ecb4e43411e6e417fcb
Linux Linux 4.13

Bug Bounty Relevance

0 / 100

CVSS Score

Unscored

EPSS — Exploitation Probability

0.21%
Raw Score 0.002150
Percentile 11.9%
Date 2026-10-31

EPSS Trend

2026-10-31
0.00215
2026-10-30
0.00209
2026-10-29
0.00209

Intelligence Sources

mitre ref →
nvd ref →