CVE-2026-46180
N/A
N/A
Summary
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().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a | affected |
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < df2e90d6a9955510f24f1dada78cfc439fd9fa88 | affected |
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < d616bb10de79e5c2bd8a24230a1128aeaf715615 | affected |
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < ed4168d1a50fef5be8eca947fbbf05a28507d265 | affected |
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < d16827cb1d3936f7627d0da6044483f743ebde03 | affected |
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < 658d2e46c2e9a8eb9b80c5e803ce3c89885b3366 | affected |
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < 908b92231e1ded53e43fcfad5e0704d83e1b803c | affected |
| Linux | Linux | a9ffda88be7416b8336f644806c2b3ed3ce08b26 < c623b63580880cc742255eaed3d79804c1b91143 | affected |
| Linux | Linux | 3.3 | affected |
| Linux | Linux | 0 < 3.3 | unaffected |
| Linux | Linux | 5.10.259 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.210 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.176 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.140 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.88 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.30 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.7 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a
- https://git.kernel.org/stable/c/df2e90d6a9955510f24f1dada78cfc439fd9fa88
- https://git.kernel.org/stable/c/d616bb10de79e5c2bd8a24230a1128aeaf715615
- https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265
- https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03
- https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366
- https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c
- https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143
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