CVE-2026-89813

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

State: Published
Severity: Not scored
Published: Sep 16, 2026
Updated: Oct 30, 2026
Reserved: Sep 11, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	65781c78ad74e4260fbec92c0ecc05738044e177 to before 83c54ed3be2f71a21e0f12ce5ca64435e33ba440Affected 65781c78ad74e4260fbec92c0ecc05738044e177 to before 11adb2bae30a3155395594e5c9bc0daf0c4ffa15Affected 65781c78ad74e4260fbec92c0ecc05738044e177 to before 9944329e409b04d71fa22f39b38a4bd78b75bcd9Affected 65781c78ad74e4260fbec92c0ecc05738044e177 to before c26cbd5c33cd72daa03079235de60688a3c97c52Affected 65781c78ad74e4260fbec92c0ecc05738044e177 to before bdd6a58743e00ebc6d52b9cdf9aafb4e535e0b71Affected 65781c78ad74e4260fbec92c0ecc05738044e177 to before fd65d1742992361fc2201ecb4e43411e6e417fcbAffected
LinuxLinux	4.13Affected before 4.13Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.18.57 through 6.18.Not affected 7.2.5 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

65781c78ad74e4260fbec92c0ecc05738044e177 to before 83c54ed3be2f71a21e0f12ce5ca64435e33ba440Affected
65781c78ad74e4260fbec92c0ecc05738044e177 to before 11adb2bae30a3155395594e5c9bc0daf0c4ffa15Affected
65781c78ad74e4260fbec92c0ecc05738044e177 to before 9944329e409b04d71fa22f39b38a4bd78b75bcd9Affected
65781c78ad74e4260fbec92c0ecc05738044e177 to before c26cbd5c33cd72daa03079235de60688a3c97c52Affected
65781c78ad74e4260fbec92c0ecc05738044e177 to before bdd6a58743e00ebc6d52b9cdf9aafb4e535e0b71Affected
65781c78ad74e4260fbec92c0ecc05738044e177 to before fd65d1742992361fc2201ecb4e43411e6e417fcbAffected

LinuxLinux

4.13Affected
before 4.13Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.18.57 through 6.18.*Not affected
7.2.5 through 7.2.*Not affected
7.3 and laterNot affected

References

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