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BUG: KCSAN: data-race in dccp_disconnect / dccp_poll

write to 0xffff8881410d6522 of 1 bytes by task 31752 on cpu 0:
 dccp_disconnect+0x4d9/0x5f0 net/dccp/proto.c:285
 __inet_stream_connect+0x5cc/0x6d0 net/ipv4/af_inet.c:712
 inet_stream_connect+0x44/0x70 net/ipv4/af_inet.c:724
 __sys_connect_file net/socket.c:1976 [inline]
 __sys_connect+0x197/0x1b0 net/socket.c:1993
 __do_sys_connect net/socket.c:2003 [inline]
 __se_sys_connect net/socket.c:2000 [inline]
 __x64_sys_connect+0x3d/0x50 net/socket.c:2000
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff8881410d6522 of 1 bytes by task 31747 on cpu 1:
 dccp_poll+0xe0/0x3c0 net/dccp/proto.c:326
 sock_poll+0x23e/0x260 net/socket.c:1353
 vfs_poll include/linux/poll.h:88 [inline]
 __io_arm_poll_handler+0x216/0x6f0 io_uring/poll.c:532
 io_arm_poll_handler+0x4c8/0x5f0 io_uring/poll.c:655
 io_queue_async+0x82/0x490 io_uring/io_uring.c:1729
 io_queue_sqe io_uring/io_uring.c:1764 [inline]
 io_submit_sqe+0x705/0xa40 io_uring/io_uring.c:2013
 io_submit_sqes+0x274/0x530 io_uring/io_uring.c:2124
 __do_sys_io_uring_enter io_uring/io_uring.c:3054 [inline]
 __se_sys_io_uring_enter+0x254/0xa50 io_uring/io_uring.c:2984
 __x64_sys_io_uring_enter+0x74/0x80 io_uring/io_uring.c:2984
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x03 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 31747 Comm: syz-executor.5 Not tainted 6.0.0-rc5-syzkaller-00094-ga335366bad13-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
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