wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync

{
  "id": "87835d7c6aaa85043b8f45ddd18428d26cdb5397a37ee5a0ebc6a8ac2406b579",
  "url": "https://osv.dev/vulnerability/CVE-2026-53101",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync roc_abort_sync() can deadlock with roc_work(). roc_work() holds dev->mt76.mutex, while cancel_work_sync() waits for roc_work() to finish. If the caller already owns the same mutex, both sides block and no progress is possible. This deadlock can occur during station removal when mt76_sta_state() -> mt76_sta_remove() -> mt7921_mac_sta_remove() -> mt7921_roc_abort_sync() invokes cancel_work_sync() while roc_work() is still running and holding dev->mt76.mutex. This avoids the mutex deadlock and preserves exactly-once work ownership.",
    "evidence": "osv:CVE-2026-53101",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.95",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.33",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-53101",
      "aliases": [
        "CVE-2026-53101"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "352d966126e66d825244f1185eb9f2d904c83dd4"
                },
                {
                  "fixed": "b4faaa617af3f4173e64169b0ec1af8f9c5bca10"
                },
                {
                  "fixed": "35180c772f5e11e2fa4d80d3dfd50906cb6d9646"
                },
                {
                  "fixed": "91e77840bf13de3add125060cf8b32ca24a52c8c"
                },
                {
                  "fixed": "d5059e52fd8bc624ec4255c9fa01a266513d126b"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53101.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.9.0"
                },
                {
                  "fixed": "6.12.95"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.33"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53101.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:34.922394340Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646",
        "https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c",
        "https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10",
        "https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53101.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53101",
        "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/2026/53xxx/CVE-2026-53101.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-53101",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 502232,
  "published_at": "2026-06-24T16:30:37.871+00:00"
}