syzbot

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BUG: KCSAN: data-race in aio_read_events / iocb_put

write to 0xffff888124a4000c of 4 bytes by task 28077 on cpu 1:
 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:52 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888124a4000c of 4 bytes by task 28078 on cpu 0:
 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+0x12f/0x3c0 fs/aio.c:2179
 __do_sys_io_pgetevents fs/aio.c:2248 [inline]
 __se_sys_io_pgetevents+0x13d/0x2d0 fs/aio.c:2225
 __x64_sys_io_pgetevents+0x78/0x90 fs/aio.c:2225
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000001d -> 0x00000021

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 28078 Comm: syz-executor.3 Not tainted 6.7.0-rc4-syzkaller-00384-gb10a3ccaf6e3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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