syzbot
KCSAN: data-race in aio_read_events / iocb_put (9)
Status:
auto-obsoleted due to no activity on 2024/01/14 07:58
Subsystems:
fs
[Documentation on labels]
Reported-by: syzbot+c0ab5ab9932ed1645ffa@syzkaller.appspotmail.com
First crash: 997d, last: 963d
Sample crash report:
==================================================================
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
==================================================================
* Struck through repros no longer work on HEAD.