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BUG: KCSAN: data-race in io_submit_sqes / io_uring_poll

read-write to 0xffff88821f2cb870 of 4 bytes by task 17629 on cpu 0:
 io_get_sqe io_uring/io_uring.c:2341 [inline]
 io_submit_sqes+0x1f1/0x550 io_uring/io_uring.c:2387
 __do_sys_io_uring_enter io_uring/io_uring.c:3345 [inline]
 __se_sys_io_uring_enter+0x1ef/0xc40 io_uring/io_uring.c:3277
 __x64_sys_io_uring_enter+0x74/0x80 io_uring/io_uring.c:3277
 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 0xffff88821f2cb870 of 4 bytes by task 17643 on cpu 1:
 io_sqring_full io_uring/io_uring.h:253 [inline]
 io_uring_poll+0x8e/0x1a0 io_uring/io_uring.c:2778
 vfs_poll include/linux/poll.h:88 [inline]
 __io_arm_poll_handler+0x209/0x900 io_uring/poll.c:577
 io_arm_poll_handler+0x43f/0x570 io_uring/poll.c:702
 io_wq_submit_work+0x3fa/0x520 io_uring/io_uring.c:1947
 io_worker_handle_work+0x549/0xbf0 io_uring/io-wq.c:587
 io_wqe_worker+0x1ff/0x8e0 io_uring/io-wq.c:632
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

value changed: 0x000007cb -> 0x000007cc

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 17643 Comm: iou-wrk-17629 Tainted: G        W          6.2.0-rc3-syzkaller-00165-gd9fc1511728c-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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