CVE-2026-46180

wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task

HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.14 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task Watchdog task might end between send_sig() and kthread_stop() calls, what results in the use-after-free issue. Fix this by increasing watchdog task reference count before calling send_sig() and dropping it by switching to kthread_stop_put().

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected a9ffda88be7416b8336f644806c2b3ed3ce08b26 < a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a ; affected a9ffda88be7416b8336f644806c2b3ed3ce08b26 < df2e90d6a9955510f24f1dada78cfc439fd9fa88 ; affected a9ffda88be7416b8336f644806c2b3ed3ce08b26 < d616bb10de79e5c2bd8a24230a1128aeaf715615 ; affected a9ffda88be7416b8336f644806c2b3ed3ce08b26 < ed4168d1a50fef5be8eca947fbbf05a28507d265 ; affected a9ffda88be7416b8336f644806c2b3ed3ce08b26 < d16827cb1d3936f7627d0da6044483f743ebde03 ; affected a9ffda88be7416b8336f644806c2b3ed3ce08b26 < 658d2e46c2e9a8eb9b80c5e803ce3c89885b3366
Linux · Linuxaffected 3.3 ; unaffected 0 < 3.3 ; unaffected 5.10.259 ≤ 5.10.* ; unaffected 5.15.210 ≤ 5.15.* ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD