CVE-2026-46180
Published May 28, 2026
Modified May 28, 2026
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().
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EPSS — Exploit Prediction
0.0013
Probability of exploitation
0.03%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
References
Other References
https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366
https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c
https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143
https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03
https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265
Frequently Asked Questions
What is CVE-2026-46180? +
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().
How do I check if I'm vulnerable to CVE-2026-46180? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.