Wind River Support Network

Description

In the Linux kernel, the following vulnerability has been resolved:  tcp: Fix out-of-bounds access for twsk in tcp_ao_established_key().  lockdep_sock_is_held() was added in tcp_ao_established_key() by the cited commit.  It can be called from tcp_v[46]_timewait_ack() with twsk.  Since it does not have sk->sk_lock, the lockdep annotation results in out-of-bound access.    $ pahole -C tcp_timewait_sock vmlinux | grep size   	/* size: 288, cachelines: 5, members: 8 */   $ pahole -C sock vmlinux | grep sk_lock   	socket_lock_t              sk_lock;              /*   440   192 */  Let's not use lockdep_sock_is_held() for TCP_TIME_WAIT.