Detections
Analytics
CVE-2026-52918
high
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize accept_q access bt_sock_poll() walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since the initial Bluetooth import. Protect accept_q with a dedicated lock for queue updates and polling. Also rework bt_accept_dequeue() to take temporary child references under the queue lock before dropping it and locking the child socket.
References
https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88
https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1
https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c
https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c
https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3
https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5
https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a
https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336