Vulnerability-Lookup

GHSA-R7XW-J6RQ-F93P

Vulnerability from github – Published: 2024-07-12 15:31 – Updated: 2025-11-04 00:30

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7921s: fix potential hung tasks during chip recovery

During chip recovery (e.g. chip reset), there is a possible situation that kernel worker reset_work is holding the lock and waiting for kernel thread stat_worker to be parked, while stat_worker is waiting for the release of the same lock. It causes a deadlock resulting in the dumping of hung tasks messages and possible rebooting of the device.

This patch prevents the execution of stat_worker during the chip recovery.

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-2024-40977"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-12T13:15:19Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921s: fix potential hung tasks during chip recovery\n\nDuring chip recovery (e.g. chip reset), there is a possible situation that\nkernel worker reset_work is holding the lock and waiting for kernel thread\nstat_worker to be parked, while stat_worker is waiting for the release of\nthe same lock.\nIt causes a deadlock resulting in the dumping of hung tasks messages and\npossible rebooting of the device.\n\nThis patch prevents the execution of stat_worker during the chip recovery.",
  "id": "GHSA-r7xw-j6rq-f93p",
  "modified": "2025-11-04T00:30:56Z",
  "published": "2024-07-12T15:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40977"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
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  "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-2024-40977 (GCVE-0-2024-40977)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:32 – Updated: 2025-11-03 21:58

Title

wifi: mt76: mt7921s: fix potential hung tasks during chip recovery

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921s: fix potential hung tasks during chip recovery During chip recovery (e.g. chip reset), there is a possible situation that kernel worker reset_work is holding the lock and waiting for kernel thread stat_worker to be parked, while stat_worker is waiting for the release of the same lock. It causes a deadlock resulting in the dumping of hung tasks messages and possible rebooting of the device. This patch prevents the execution of stat_worker during the chip recovery.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/0b81faa05b0b9feb3…
	https://git.kernel.org/stable/c/85edd783f4539a994…
	https://git.kernel.org/stable/c/e974dd4c22a23ec3c…
	https://git.kernel.org/stable/c/ecf0b2b8a37c84641…

Impacted products

Vendor

Product

Version

Linux

Affected: 7bc04215a66b60e198aecaee8418f6d79fa19faa , < 0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08 (git)
Affected: 7bc04215a66b60e198aecaee8418f6d79fa19faa , < 85edd783f4539a994d66c4c014d5858f490b7a02 (git)
Affected: 7bc04215a66b60e198aecaee8418f6d79fa19faa , < e974dd4c22a23ec3ce579fb6d31a674ac0435da9 (git)
Affected: 7bc04215a66b60e198aecaee8418f6d79fa19faa , < ecf0b2b8a37c8464186620bef37812a117ff6366 (git)

Linux

Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 6.1.96 , ≤ 6.1.* (semver)
Unaffected: 6.6.36 , ≤ 6.6.* (semver)
Unaffected: 6.9.7 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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JSON

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-R7XW-J6RQ-F93P

CVE-2024-40977 (GCVE-0-2024-40977)

Tags

Sightings

Nomenclature