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BUG: KCSAN: data-race in unix_dgram_poll / unix_release_sock

write to 0xffff88810400d270 of 1 bytes by task 22711 on cpu 1:
 unix_release_sock+0x2d0/0x700 net/unix/af_unix.c:565
 unix_release+0x4e/0x70 net/unix/af_unix.c:915
 __sock_release net/socket.c:649 [inline]
 sock_close+0x6c/0x150 net/socket.c:1314
 __fput+0x295/0x520 fs/file_table.c:280
 ____fput+0x11/0x20 fs/file_table.c:313
 task_work_run+0xae/0x130 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
 exit_to_user_mode_prepare+0x156/0x190 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:302
 do_syscall_64+0x50/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff88810400d270 of 1 bytes by task 22726 on cpu 0:
 unix_dgram_poll+0xdf/0x3e0 net/unix/af_unix.c:3048
 sock_poll+0x23e/0x260 net/socket.c:1302
 vfs_poll include/linux/poll.h:90 [inline]
 __io_arm_poll_handler+0x1af/0x5c0 fs/io_uring.c:5559
 io_arm_poll_handler+0x317/0x480 fs/io_uring.c:5634
 __io_queue_sqe+0xa7/0x460 fs/io_uring.c:6975
 io_queue_sqe fs/io_uring.c:7003 [inline]
 io_submit_sqe+0x88b/0x3e90 fs/io_uring.c:7179
 io_submit_sqes+0x505/0xde0 fs/io_uring.c:7285
 __do_sys_io_uring_enter fs/io_uring.c:9943 [inline]
 __se_sys_io_uring_enter+0x20d/0xb30 fs/io_uring.c:9885
 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:9885
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00 -> 0x03

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 22726 Comm: syz-executor.5 Tainted: G        W         5.15.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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