CVE-2026-89813 (GCVE-0-2026-89813)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:30 – Updated: 2026-09-17 09:29
VLAI
Title
drm/amdgpu: force complete the KIQ ring fences on reset
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 65781c78ad74e4260fbec92c0ecc05738044e177 , < bdd6a58743e00ebc6d52b9cdf9aafb4e535e0b71 (git)
Affected: 65781c78ad74e4260fbec92c0ecc05738044e177 , < fd65d1742992361fc2201ecb4e43411e6e417fcb (git)
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Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
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    "dateReserved": "2026-09-11T19:38:34.768Z",
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: force complete the KIQ ring fences on reset\n\nLike the MES scheduler ring, the KIQ ring sets no_scheduler = true and uses a\npolling fence, so it is skipped by the force-completion loop in\namdgpu_device_pre_asic_reset(). Its hw fence value lives in wb (GTT) memory and\nsurvives a MODE1 reset while fence_drv.sync_seq keeps advancing, so after a\nreset the first KIQ submission can poll forever on a seq that is never written\nback.\n\nForce complete the KIQ ring fences too so their hw fence is realigned to\nsync_seq."
          }
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        "metrics": {},
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      "status": "interim",
      "title": "SUSE CVE CVE-2026-89813",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-89813.json",
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}



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