syzbot

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BUG: KCSAN: data-race in aio_read_events / iocb_put

write to 0xffff88810fc6900c of 4 bytes by task 26582 on cpu 1:
 aio_complete fs/aio.c:1168 [inline]
 iocb_put+0x160/0x680 fs/aio.c:1215
 io_submit_one+0xb26/0x1240 fs/aio.c:2061
 __do_sys_io_submit fs/aio.c:2117 [inline]
 __se_sys_io_submit+0xf5/0x280 fs/aio.c:2087
 __x64_sys_io_submit+0x43/0x50 fs/aio.c:2087
 x64_sys_call+0x2a7d/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:210
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff88810fc6900c of 4 bytes by task 26580 on cpu 0:
 aio_read_events_ring fs/aio.c:1244 [inline]
 aio_read_events+0x8d/0x3c0 fs/aio.c:1304
 read_events fs/aio.c:1340 [inline]
 do_io_getevents+0x129/0x400 fs/aio.c:2236
 __do_sys_io_getevents fs/aio.c:2269 [inline]
 __se_sys_io_getevents fs/aio.c:2257 [inline]
 __x64_sys_io_getevents+0xca/0x190 fs/aio.c:2257
 x64_sys_call+0x1e8c/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:209
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x0000001e -> 0x00000029

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 26580 Comm: syz-executor.3 Tainted: G        W          6.9.0-rc7-syzkaller-00188-gba16c1cf11c9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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