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().
脆弱性の種類
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().
影響を受ける製品
- linux linux_kernel
参考情報
- https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366
- https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c
- https://git.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a
- https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143
- https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03
- https://git.kernel.org/stable/c/d616bb10de79e5c2bd8a24230a1128aeaf715615