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

{
  "id": "dc5abb10e4112429649420b0166b7fdd5540120be4c32e170122c5fbd9b69546",
  "url": "https://osv.dev/vulnerability/CVE-2026-89813",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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.",
    "evidence": "osv:CVE-2026-89813",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.191",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.114",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.57",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-89813",
      "aliases": [
        "CVE-2026-89813"
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "83c54ed3be2f71a21e0f12ce5ca64435e33ba440"
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                {
                  "fixed": "11adb2bae30a3155395594e5c9bc0daf0c4ffa15"
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                {
                  "fixed": "9944329e409b04d71fa22f39b38a4bd78b75bcd9"
                },
                {
                  "fixed": "c26cbd5c33cd72daa03079235de60688a3c97c52"
                },
                {
                  "fixed": "bdd6a58743e00ebc6d52b9cdf9aafb4e535e0b71"
                },
                {
                  "fixed": "fd65d1742992361fc2201ecb4e43411e6e417fcb"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89813.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                  "introduced": "4.13.0"
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                  "fixed": "6.1.191"
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                  "introduced": "6.2.0"
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                  "fixed": "6.6.160"
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            {
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                  "introduced": "6.7.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89813.json"
          }
        }
      ],
      "modified": "2026-11-01T02:30:18.631332344Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/11adb2bae30a3155395594e5c9bc0daf0c4ffa15",
        "https://git.kernel.org/stable/c/83c54ed3be2f71a21e0f12ce5ca64435e33ba440",
        "https://git.kernel.org/stable/c/9944329e409b04d71fa22f39b38a4bd78b75bcd9",
        "https://git.kernel.org/stable/c/bdd6a58743e00ebc6d52b9cdf9aafb4e535e0b71",
        "https://git.kernel.org/stable/c/c26cbd5c33cd72daa03079235de60688a3c97c52",
        "https://git.kernel.org/stable/c/fd65d1742992361fc2201ecb4e43411e6e417fcb",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89813.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-89813",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89813.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-89813",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 506856,
  "published_at": "2026-09-16T10:30:46.201+00:00"
}