syzbot

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BUG: KCSAN: data-race in aio_read_events / iocb_put

write to 0xffff88810776300c of 4 bytes by task 13731 on cpu 0:
 aio_complete fs/aio.c:1153 [inline]
 iocb_put+0x1fc/0x620 fs/aio.c:1187
 io_submit_one+0x9bf/0x1220 fs/aio.c:2022
 __do_sys_io_submit fs/aio.c:2078 [inline]
 __se_sys_io_submit+0x105/0x280 fs/aio.c:2048
 __x64_sys_io_submit+0x3f/0x50 fs/aio.c:2048
 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 0xffff88810776300c of 4 bytes by task 13730 on cpu 1:
 aio_read_events_ring fs/aio.c:1216 [inline]
 aio_read_events+0xc9/0x4d0 fs/aio.c:1279
 read_events fs/aio.c:1316 [inline]
 do_io_getevents+0x12f/0x3c0 fs/aio.c:2197
 __do_sys_io_getevents fs/aio.c:2230 [inline]
 __se_sys_io_getevents fs/aio.c:2218 [inline]
 __x64_sys_io_getevents+0xc6/0x180 fs/aio.c:2218
 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: 0x00000009 -> 0x0000000f

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 13730 Comm: syz-executor.5 Not tainted 6.1.0-rc6-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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