GHSA-4HRQ-JXXX-HJ3H

Vulnerability from github – Published: 2025-04-01 18:30 – Updated: 2025-11-03 21:33
VLAI?
Details

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

wifi: cfg80211: cancel wiphy_work before freeing wiphy

A wiphy_work can be queued from the moment the wiphy is allocated and initialized (i.e. wiphy_new_nm). When a wiphy_work is queued, the rdev::wiphy_work is getting queued.

If wiphy_free is called before the rdev::wiphy_work had a chance to run, the wiphy memory will be freed, and then when it eventally gets to run it'll use invalid memory.

Fix this by canceling the work before freeing the wiphy.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-21979"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-01T16:15:29Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: cancel wiphy_work before freeing wiphy\n\nA wiphy_work can be queued from the moment the wiphy is allocated and\ninitialized (i.e. wiphy_new_nm). When a wiphy_work is queued, the\nrdev::wiphy_work is getting queued.\n\nIf wiphy_free is called before the rdev::wiphy_work had a chance to run,\nthe wiphy memory will be freed, and then when it eventally gets to run\nit\u0027ll use invalid memory.\n\nFix this by canceling the work before freeing the wiphy.",
  "id": "GHSA-4hrq-jxxx-hj3h",
  "modified": "2025-11-03T21:33:26Z",
  "published": "2025-04-01T18:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21979"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0272d4af7f92997541d8bbf4c51918b93ded6ee2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72d520476a2fab6f3489e8388ab524985d6c4b90"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75d262ad3c36d52852d764588fcd887f0fcd9138"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5158d67bff06cb6fea31be39aeb319fd908ed8e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dea22de162058216a90f2706f0d0b36f0ff309fd"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.