CVE-2026-46180
wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task
CVSS Score
0.0
EPSS Score
0.1%
EPSS Percentile
3th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 28, 2026 |
| Last Updated | Jun 19, 2026 |
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Affected Versions
Linux / Linux
a9ffda88be7416b8336f644806c2b3ed3ce08b26 < a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a a9ffda88be7416b8336f644806c2b3ed3ce08b26 < df2e90d6a9955510f24f1dada78cfc439fd9fa88 a9ffda88be7416b8336f644806c2b3ed3ce08b26 < d616bb10de79e5c2bd8a24230a1128aeaf715615 a9ffda88be7416b8336f644806c2b3ed3ce08b26 < ed4168d1a50fef5be8eca947fbbf05a28507d265 a9ffda88be7416b8336f644806c2b3ed3ce08b26 < d16827cb1d3936f7627d0da6044483f743ebde03 a9ffda88be7416b8336f644806c2b3ed3ce08b26 < 658d2e46c2e9a8eb9b80c5e803ce3c89885b3366 a9ffda88be7416b8336f644806c2b3ed3ce08b26 < 908b92231e1ded53e43fcfad5e0704d83e1b803c a9ffda88be7416b8336f644806c2b3ed3ce08b26 < c623b63580880cc742255eaed3d79804c1b91143
Linux / Linux
3.3
References
git.kernel.org: https://git.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a git.kernel.org: https://git.kernel.org/stable/c/df2e90d6a9955510f24f1dada78cfc439fd9fa88 git.kernel.org: https://git.kernel.org/stable/c/d616bb10de79e5c2bd8a24230a1128aeaf715615 git.kernel.org: https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265 git.kernel.org: https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03 git.kernel.org: https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366 git.kernel.org: https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c git.kernel.org: https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143