syzbot

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BUG: KCSAN: data-race in aio_read_events / iocb_put

write to 0xffff888122f7100c of 4 bytes by task 29121 on cpu 0:
 aio_complete fs/aio.c:1153 [inline]
 iocb_put+0x15a/0x510 fs/aio.c:1186
 io_submit_one+0xb47/0x1250 fs/aio.c:2004
 __do_sys_io_submit fs/aio.c:2060 [inline]
 __se_sys_io_submit+0xf5/0x280 fs/aio.c:2030
 __x64_sys_io_submit+0x43/0x50 fs/aio.c:2030
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888122f7100c of 4 bytes by task 29120 on cpu 1:
 aio_read_events_ring fs/aio.c:1215 [inline]
 aio_read_events+0x8d/0x3b0 fs/aio.c:1275
 read_events fs/aio.c:1312 [inline]
 do_io_getevents+0x238/0x3c0 fs/aio.c:2179
 __do_sys_io_getevents fs/aio.c:2212 [inline]
 __se_sys_io_getevents fs/aio.c:2200 [inline]
 __x64_sys_io_getevents+0xca/0x190 fs/aio.c:2200
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 29120 Comm: syz-executor.4 Not tainted 6.6.0-rc1-syzkaller-00196-g57d88e8a5974 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
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