================================================ WARNING: lock held when returning to user space! 5.16.0-rc5-syzkaller #0 Not tainted ------------------------------------------------ syz-executor.1/27990 is leaving the kernel with locks still held! 1 lock held by syz-executor.1/27990: #0: ffff8880510eb420 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1645 [inline] #0: ffff8880510eb420 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_setsockopt net/ipv4/tcp.c:3369 [inline] #0: ffff8880510eb420 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_setsockopt+0x5b8/0x2520 net/ipv4/tcp.c:3657