CVE-2026-64127

The CVE-2026-64127 issue affects the Linux kernel Bluetooth L2CAP path for ecred_reconfigure. After the 1c0810 commit, DEFINE_RAW_FLEX() caused l2cap_send_cmd() to copy 8 bytes from the stack pointer instead of the 6-byte MTU/mps/scid payload, leaking a kernel stack address and making the RECONFI...