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WARNING: lock held when returning to user space!
5.16.0-rc5-syzkaller #0 Not tainted
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syz-executor376/4302 is leaving the kernel with locks still held!
1 lock held by syz-executor376/4302:
 #0: ffff8880789a1aa0 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1645 [inline]
 #0: ffff8880789a1aa0 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_setsockopt net/ipv4/tcp.c:3370 [inline]
 #0: ffff8880789a1aa0 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1645 [inline] net/ipv4/tcp.c:3658
 #0: ffff8880789a1aa0 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_setsockopt net/ipv4/tcp.c:3370 [inline] net/ipv4/tcp.c:3658
 #0: ffff8880789a1aa0 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_setsockopt+0x5b8/0x2520 net/ipv4/tcp.c:3658 net/ipv4/tcp.c:3658