CVE-2026-53101 (GCVE-0-2026-53101)
Vulnerability from cvelistv5
Published
2026-06-24 16:30
Modified
2026-07-04 11:50
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 352d966126e66d825244f1185eb9f2d904c83dd4
Version: 352d966126e66d825244f1185eb9f2d904c83dd4
Version: 352d966126e66d825244f1185eb9f2d904c83dd4
Version: 352d966126e66d825244f1185eb9f2d904c83dd4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
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              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
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              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.95",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
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                }
              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync\n\nroc_abort_sync() can deadlock with roc_work(). roc_work() holds\ndev-\u003emt76.mutex, while cancel_work_sync() waits for roc_work()\nto finish. If the caller already owns the same mutex, both\nsides block and no progress is possible.\n\nThis deadlock can occur during station removal when\nmt76_sta_state() -\u003e mt76_sta_remove() -\u003e mt7921_mac_sta_remove() -\u003e\nmt7921_roc_abort_sync() invokes cancel_work_sync() while\nroc_work() is still running and holding dev-\u003emt76.mutex.\n\nThis avoids the mutex deadlock and preserves exactly-once\nwork ownership."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-04T11:50:50.214Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10"
        },
        {
          "url": "https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646"
        },
        {
          "url": "https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b"
        }
      ],
      "title": "wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync",
      "x_generator": {
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53101",
    "datePublished": "2026-06-24T16:30:37.871Z",
    "dateReserved": "2026-06-09T07:44:35.384Z",
    "dateUpdated": "2026-07-04T11:50:50.214Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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