7.8

CVE-2025-21979

wifi: cfg80211: cancel wiphy_work before freeing wiphy

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1.57 < 6.1.132
Linux ≫ Linux Kernel Version >= 6.5 < 6.6.84
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.20
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.8
Linux ≫ Linux Kernel Version6.14 Updaterc1
Linux ≫ Linux Kernel Version6.14 Updaterc2
Linux ≫ Linux Kernel Version6.14 Updaterc3
Linux ≫ Linux Kernel Version6.14 Updaterc4
Linux ≫ Linux Kernel Version6.14 Updaterc5
Linux ≫ Linux Kernel Version6.14 Updaterc6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.085
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/0272d4af7f92997541d8bbf4c51918b93ded6ee2
Patch
https://git.kernel.org/stable/c/72d520476a2fab6f3489e8388ab524985d6c4b90
Patch
https://git.kernel.org/stable/c/75d262ad3c36d52852d764588fcd887f0fcd9138
Patch
https://git.kernel.org/stable/c/a5158d67bff06cb6fea31be39aeb319fd908ed8e
Patch
https://git.kernel.org/stable/c/dea22de162058216a90f2706f0d0b36f0ff309fd
Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Patch
https://git.kernel.org/stable/c/8930a3e1568cf534f86c8ed2def817c6d0528fc1
Patch