EUVD-2026-86939

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix chan mode for LECONNREQ + EXTFLOWCTL pchan l2capnewconnection sets default value of channel mode to match the parent channel. l2capleconnectreq left this at the default, and created L2CAPMODEEXTFLOWCTL...

kernel: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp

A flaw was found in the Bluetooth L2CAP Logical Link Control and Adaptation Protocol component of the Linux kernel. When a device receives a connection response with an already-assigned destination Channel Identifier CID, the system may crash. This occurs because the kernel's procedure for...

kernel: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp

A flaw was found in the Bluetooth L2CAP Logical Link Control and Adaptation Protocol component of the Linux kernel. When a device receives a connection response with an already-assigned destination Channel Identifier CID, the system may crash. This occurs because the kernel's procedure for...

CVE-2026-63975: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix possible crash on l2capecredconnrsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2capchandel may invalidate the tmp cursor...