CVE-2026-53101 (GCVE-0-2026-53101)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-07-04 11:50
VLAI
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < b4faaa617af3f4173e64169b0ec1af8f9c5bca10 (git)
Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < 35180c772f5e11e2fa4d80d3dfd50906cb6d9646 (git)
Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < 91e77840bf13de3add125060cf8b32ca24a52c8c (git)
Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < d5059e52fd8bc624ec4255c9fa01a266513d126b (git)
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Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.12.95 , ≤ 6.12.* (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/main.c"
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              "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": [
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          "url": "https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10"
        },
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          "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",
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  "cveMetadata": {
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    "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"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "percentile": "0.06438"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-26T18:38:55+00:00",
      "cve": "CVE-2026-53101",
      "id": "CVE-2026-53101",
      "initial_release_date": "2026-06-24T00:00:00+00:00",
      "product_status:known_affected": "184",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53101.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.