FKIE_CVE-2026-53101

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-24 17:17
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "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",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "35180c772f5e11e2fa4d80d3dfd50906cb6d9646",
              "status": "affected",
              "version": "352d966126e66d825244f1185eb9f2d904c83dd4",
              "versionType": "git"
            },
            {
              "lessThan": "91e77840bf13de3add125060cf8b32ca24a52c8c",
              "status": "affected",
              "version": "352d966126e66d825244f1185eb9f2d904c83dd4",
              "versionType": "git"
            },
            {
              "lessThan": "d5059e52fd8bc624ec4255c9fa01a266513d126b",
              "status": "affected",
              "version": "352d966126e66d825244f1185eb9f2d904c83dd4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-53101",
  "lastModified": "2026-06-24T17:17:24.377",
  "metrics": {},
  "published": "2026-06-24T17:17:24.377",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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