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BUG: KCSAN: data-race in __inet_hash_connect / inet_send_prepare

write to 0xffff88814530324e of 2 bytes by task 19939 on cpu 0:
 inet_bind_hash net/ipv4/inet_hashtables.c:98 [inline]
 __inet_hash_connect+0x716/0x900 net/ipv4/inet_hashtables.c:829
 inet_hash_connect+0x85/0x90 net/ipv4/inet_hashtables.c:853
 tcp_v4_connect+0x76a/0xba0 net/ipv4/tcp_ipv4.c:275
 __inet_stream_connect+0x156/0x6d0 net/ipv4/af_inet.c:664
 inet_stream_connect+0x44/0x70 net/ipv4/af_inet.c:728
 __sys_connect_file net/socket.c:1837 [inline]
 __sys_connect+0x245/0x280 net/socket.c:1854
 __do_sys_connect net/socket.c:1864 [inline]
 __se_sys_connect net/socket.c:1861 [inline]
 __x64_sys_connect+0x3d/0x50 net/socket.c:1861
 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff88814530324e of 2 bytes by task 19941 on cpu 1:
 inet_send_prepare+0x21/0x210 net/ipv4/af_inet.c:806
 inet_sendmsg+0x29/0x80 net/ipv4/af_inet.c:818
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg net/socket.c:674 [inline]
 ____sys_sendmsg+0x360/0x4d0 net/socket.c:2350
 ___sys_sendmsg net/socket.c:2404 [inline]
 __sys_sendmmsg+0x315/0x4b0 net/socket.c:2490
 __do_sys_sendmmsg net/socket.c:2519 [inline]
 __se_sys_sendmmsg net/socket.c:2516 [inline]
 __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2516
 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 19941 Comm: syz-executor.3 Tainted: G        W         5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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