CVE-2026-53103 (GCVE-0-2026-53103)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30
VLAI
Title
wifi: mt76: mt7925: fix potential deadlock in mt7925_roc_abort_sync
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix potential deadlock in mt7925_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() -> mt7925_mac_sta_remove_link() -> mt7925_mac_link_sta_remove() -> mt7925_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
Impacted products
Vendor Product Version
Linux Linux Affected: 45064d19fd3af6aeb0887b35b5564927980cf150 , < 153bcba36c87a1ba555b57b6c49028d5812f895b (git)
Affected: 45064d19fd3af6aeb0887b35b5564927980cf150 , < 2d8e0053bca29143ace51e08c980ff076844a4b0 (git)
Affected: 45064d19fd3af6aeb0887b35b5564927980cf150 , < dd08ca3f092f4185ece69ce2a835c23198b1628a (git)
Affected: 978d1756b3ae1b857826eb7ed8181f3c5180dce9 (git)
Affected: 6.11.2 , < 6.12 (semver)
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Linux Linux Affected: 6.12
Unaffected: 0 , < 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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Show details on NVD website

{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7925/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: mt7925: fix potential deadlock in mt7925_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\nmt7925_mac_sta_remove_link() -\u003e mt7925_mac_link_sta_remove() -\u003e\nmt7925_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": "2026-06-24T16:30:39.184Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/2d8e0053bca29143ace51e08c980ff076844a4b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd08ca3f092f4185ece69ce2a835c23198b1628a"
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      ],
      "title": "wifi: mt76: mt7925: fix potential deadlock in mt7925_roc_abort_sync",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53103",
    "datePublished": "2026-06-24T16:30:39.184Z",
    "dateReserved": "2026-06-09T07:44:35.385Z",
    "dateUpdated": "2026-06-24T16:30:39.184Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53103",
      "date": "2026-07-02",
      "epss": "0.00166",
      "percentile": "0.06233"
    },
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  }
}


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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.
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