================================================ WARNING: lock held when returning to user space! 5.14.0-next-20210907-syzkaller #0 Not tainted ------------------------------------------------ syz-executor.2/8799 is leaving the kernel with locks still held! 1 lock held by syz-executor.2/8799: #0: ffff888029fc3020 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1612 [inline] #0: ffff888029fc3020 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: do_tcp_setsockopt net/ipv4/tcp.c:3372 [inline] #0: ffff888029fc3020 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_setsockopt+0x5b8/0x2520 net/ipv4/tcp.c:3660