GHSA-PV6C-CXX7-759W
Vulnerability from github – Published: 2026-09-11 21:31 – Updated: 2026-09-14 15:32In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7615: avoid waiting for mac work under the mt76 mutex
mt7615_suspend() acquired the mt76 mutex and then called cancel_delayed_work_sync() on mac_work. mt7615_mac_work() acquires the same mutex via mt7615_mutex_acquire() at the top of the worker, so if mac_work is already running and blocked on the mutex, the suspend path deadlocks waiting for the work it holds the mutex against.
Flush scan_work and mac_work before taking the mutex, matching the suspend paths in mt7921 and mt7925. scan_work only takes the mt76 spinlock, but moving it keeps the sequence consistent. This also keeps mac_work from running over an already suspended HIF, which the previous split (async cancel under the lock, sync cancel after release) would have allowed.
{
"affected": [],
"aliases": [
"CVE-2026-80938"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-11T20:18:58Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7615: avoid waiting for mac work under the mt76 mutex\n\nmt7615_suspend() acquired the mt76 mutex and then called\ncancel_delayed_work_sync() on mac_work. mt7615_mac_work() acquires the\nsame mutex via mt7615_mutex_acquire() at the top of the worker, so if\nmac_work is already running and blocked on the mutex, the suspend path\ndeadlocks waiting for the work it holds the mutex against.\n\nFlush scan_work and mac_work before taking the mutex, matching the\nsuspend paths in mt7921 and mt7925. scan_work only takes the mt76\nspinlock, but moving it keeps the sequence consistent. This also keeps\nmac_work from running over an already suspended HIF, which the previous\nsplit (async cancel under the lock, sync cancel after release) would\nhave allowed.",
"id": "GHSA-pv6c-cxx7-759w",
"modified": "2026-09-14T15:32:20Z",
"published": "2026-09-11T21:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80938"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3114d479f2a1d31b2e6214c395794c6e5715e579"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/33d29aeb4c0eede92622a7d04ea492b94c30f089"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/36c73b86a09f0e51c0f81a75c8945b6c5557ff27"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/44be85af3e1772ffb3332feafedad2a73b22854c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4506e229b2e468b8c64bcf52c50c41a3bf2e633e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bda8324270b1ac91bfba1df8928e0570e29759e8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ef2ec8b537c3a54e241d693bd03016f80d0d4484"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.