Executive Summary

Informations
Name CVE-2025-21979 First vendor Publication 2025-04-01
Vendor Cve Last vendor Modification 2025-04-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21979

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3717

Sources (Detail)

https://git.kernel.org/stable/c/0272d4af7f92997541d8bbf4c51918b93ded6ee2
https://git.kernel.org/stable/c/72d520476a2fab6f3489e8388ab524985d6c4b90
https://git.kernel.org/stable/c/75d262ad3c36d52852d764588fcd887f0fcd9138
https://git.kernel.org/stable/c/a5158d67bff06cb6fea31be39aeb319fd908ed8e
https://git.kernel.org/stable/c/dea22de162058216a90f2706f0d0b36f0ff309fd
Source Url

Alert History

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Date Informations
2025-06-26 02:41:14
  • Multiple Updates
2025-06-25 12:38:19
  • Multiple Updates
2025-06-24 02:45:40
  • Multiple Updates
2025-05-27 02:53:55
  • First insertion