l2cap sockets

The l2cap sockets tag covers discussions about Bluetooth L2CAP socket vulnerabilities and fixes, particularly in the context of Windows-centric IT environments. Recent content highlights a Linux kernel null-pointer dereference in the l2cap_sock_get_sndtimeo_cb() callback, tracked as CVE-2026-45836. While the vulnerability itself is not a remote code execution flaw, it underscores how small callback assumptions in the Bluetooth stack can become security-tracked defects. For Windows teams, the relevance lies in understanding that Linux-powered endpoints, appliances, containers, and embedded systems often reside within Windows-heavy estates, making cross-platform awareness critical for security and patch management.