==================================================================
BUG: KCSAN: data-race in aio_read_events / io_submit_one

read to 0xffff8880a101500c of 4 bytes by task 10388 on cpu 0:
 aio_read_events_ring fs/aio.c:1193 [inline]
 aio_read_events+0x10e/0x620 fs/aio.c:1256
 read_events+0xe5/0x260 fs/aio.c:1293
 do_io_getevents+0xfc/0x210 fs/aio.c:2040
 __do_sys_io_pgetevents fs/aio.c:2109 [inline]
 __se_sys_io_pgetevents fs/aio.c:2086 [inline]
 __x64_sys_io_pgetevents+0x193/0x2a0 fs/aio.c:2086
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

write to 0xffff8880a101500c of 4 bytes by task 10386 on cpu 1:
 aio_complete fs/aio.c:1130 [inline]
 iocb_put fs/aio.c:1164 [inline]
 iocb_put fs/aio.c:1161 [inline]
 io_submit_one+0x954/0xe70 fs/aio.c:1865
 __do_sys_io_submit fs/aio.c:1921 [inline]
 __se_sys_io_submit fs/aio.c:1891 [inline]
 __x64_sys_io_submit+0x104/0x2d0 fs/aio.c:1891
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 10386 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 10386 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x11d/0x181 lib/dump_stack.c:118
 panic+0x210/0x640 kernel/panic.c:221
 kcsan_report.cold+0xc/0xd kernel/kcsan/report.c:315
 kcsan_setup_watchpoint+0x3fe/0x460 kernel/kcsan/core.c:423
 check_access kernel/kcsan/core.c:466 [inline]
 __tsan_write4 kernel/kcsan/core.c:595 [inline]
 __tsan_unaligned_write4+0xc4/0x100 kernel/kcsan/core.c:595
 aio_complete fs/aio.c:1130 [inline]
 iocb_put fs/aio.c:1164 [inline]
 iocb_put fs/aio.c:1161 [inline]
 io_submit_one+0x954/0xe70 fs/aio.c:1865
 __do_sys_io_submit fs/aio.c:1921 [inline]
 __se_sys_io_submit fs/aio.c:1891 [inline]
 __x64_sys_io_submit+0x104/0x2d0 fs/aio.c:1891
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45a6f9
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2b47ad9c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a6f9
RDX: 0000000020000540 RSI: 0000000000000001 RDI: 00007f2b47adb000
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2b47ada6d4
R13: 00000000004c1e03 R14: 00000000004d6d80 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..