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================================================================== BUG: KCSAN: data-race in io_sq_thread / io_sq_thread_park write to 0xffff888108c37cf8 of 8 bytes by task 23163 on cpu 0: io_sq_thread+0xa1a/0xab0 io_uring/sqpoll.c:307 ret_from_fork+0x1f/0x30 read to 0xffff888108c37cf8 of 8 bytes by task 29197 on cpu 1: io_sq_thread_park+0x17/0x70 io_uring/sqpoll.c:45 io_ring_exit_work+0xd1/0x3f0 io_uring/io_uring.c:2581 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289 worker_thread+0x618/0xa70 kernel/workqueue.c:2436 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 value changed: 0xffff888136230e40 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 29197 Comm: kworker/u4:149 Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Workqueue: events_unbound io_ring_exit_work ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022/08/16 09:21 | upstream | 7ebfc85e2cd7 | 7a7cb304 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in io_sq_thread / io_sq_thread_park | |||
| 2022/08/01 21:38 | upstream | 3d7cb6b04c3f | fef302b1 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in io_sq_thread / io_sq_thread_park | |||
| 2022/07/31 14:54 | upstream | 6a010258447d | fef302b1 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in io_sq_thread / io_sq_thread_park | |||
| 2022/07/17 16:33 | upstream | 972a278fe60c | 95cb00d1 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in io_sq_thread / io_sq_thread_park | |||
| 2022/07/11 10:15 | upstream | 32346491ddf2 | f3f217ff | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in io_sq_thread / io_sq_thread_park |