CVE-2026-46180

high

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().

References

https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265

https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03

https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143

https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c

https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366

Details

Source: Mitre, NVD

Published: 2026-05-28

Updated: 2026-05-28

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00018