Vulnerability-Lookup

GHSA-VHCC-WFM4-93WW

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-07-21 18:30

Details

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

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53101"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:24Z",
    "severity": "MODERATE"
  },
  "details": "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": "GHSA-vhcc-wfm4-93ww",
  "modified": "2026-07-21T18:30:43Z",
  "published": "2026-06-24T18:32:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53101"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-07-04 11:50

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

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/b4faaa617af3f4173…
https://git.kernel.org/stable/c/35180c772f5e11e2f…
https://git.kernel.org/stable/c/91e77840bf13de3ad…
https://git.kernel.org/stable/c/d5059e52fd8bc624e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < b4faaa617af3f4173e64169b0ec1af8f9c5bca10 (git) Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < 35180c772f5e11e2fa4d80d3dfd50906cb6d9646 (git) Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < 91e77840bf13de3add125060cf8b32ca24a52c8c (git) Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < d5059e52fd8bc624ec4255c9fa01a266513d126b (git)
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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        {
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            "drivers/net/wireless/mediatek/mt76/mt7921/main.c"
          ],
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    "datePublished": "2026-06-24T16:30:37.871Z",
    "dateReserved": "2026-06-09T07:44:35.384Z",
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}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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