In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: serialize accept_q access
btsockpoll() 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 acceptq with a dedicated lock for queue updates and polling. Also rework btaccept_dequeue() to take temporary child references under the queue lock before dropping it and locking the child socket.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52918.json",
"cna_assigner": "Linux"
}