CVE-2026-31512

Mode C CVE-2026-31512 affects the Linux kernel Bluetooth L2CAP path. The vulnerability arises in l2cap_ecred_data_rcv() where the SDU length is read from skb->data using get_unaligned_le16() without first ensuring skb contains at least 2 bytes (L2CAP_SDULEN_SIZE). If skb->len