syzbot
KCSAN: data-race in aio_read_events / iocb_put (3)
Status: auto-closed as invalid on 2021/11/04 18:41
Subsystems:
fs
[Documentation on labels]
First crash: 1772d, last: 1767d
Sample crash report:
==================================================================
BUG: KCSAN: data-race in aio_read_events / iocb_put
write to 0xffff888125c6000c of 4 bytes by task 19084 on cpu 1:
aio_complete fs/aio.c:1129 [inline]
iocb_put+0x1e1/0x5c0 fs/aio.c:1163
io_submit_one+0x87d/0x13b0 fs/aio.c:1883
__do_sys_io_submit fs/aio.c:1939 [inline]
__se_sys_io_submit+0x105/0x270 fs/aio.c:1909
__x64_sys_io_submit+0x3f/0x50 fs/aio.c:1909
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
read to 0xffff888125c6000c of 4 bytes by task 19071 on cpu 0:
aio_read_events_ring fs/aio.c:1192 [inline]
aio_read_events+0xc6/0x470 fs/aio.c:1255
read_events fs/aio.c:1292 [inline]
do_io_getevents+0x267/0x380 fs/aio.c:2058
__do_sys_io_getevents fs/aio.c:2091 [inline]
__se_sys_io_getevents fs/aio.c:2079 [inline]
__x64_sys_io_getevents+0xc6/0x180 fs/aio.c:2079
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
value changed: 0x00000001 -> 0x00000002
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 19071 Comm: syz-executor.2 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================
* Struck through repros no longer work on HEAD.