kernel: bluetooth: bt_sock_ioctl race condition leads to use-after-free in bt_sock_recvmsg

A flaw was found in the Bluetooth subsystem of the Linux kernel. A race condition between the btsockrecvmsg and btsockioctl functions could lead to a use-after-free on a socket buffer "skb". This flaw allows a local user to cause a denial of service condition or potential code execution...