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================================================================== BUG: KCSAN: data-race in io_wq_activate_free_worker / io_wq_worker_running write to 0xffff8881174fbcc4 of 4 bytes by task 4976 on cpu 0: io_wq_worker_running+0x64/0xb0 io_uring/io-wq.c:702 schedule_timeout+0xca/0x2c0 kernel/time/timer.c:2582 io_wq_worker+0x35e/0x730 io_uring/io-wq.c:667 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read to 0xffff8881174fbcc4 of 4 bytes by task 4975 on cpu 1: io_wq_get_acct io_uring/io-wq.c:168 [inline] io_wq_activate_free_worker+0xfa/0x250 io_uring/io-wq.c:285 io_wq_enqueue+0x25e/0x440 io_uring/io-wq.c:947 io_queue_iowq+0x1d6/0x320 io_uring/io_uring.c:523 io_queue_sqe_fallback+0x87/0xe0 io_uring/io_uring.c:2143 io_submit_sqe io_uring/io_uring.c:2372 [inline] io_submit_sqes+0xc4b/0x10a0 io_uring/io_uring.c:2492 __do_sys_io_uring_enter io_uring/io_uring.c:3668 [inline] __se_sys_io_uring_enter+0x1d1/0x17f0 io_uring/io_uring.c:3603 __x64_sys_io_uring_enter+0x78/0x90 io_uring/io_uring.c:3603 x64_sys_call+0x263/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:427 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: 0x0000000d -> 0x0000000b Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 4975 Comm: syz-executor.0 Not tainted 6.9.0-rc7-syzkaller-00117-g448b3fe5a0ea #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/05/09 23:44 | upstream | 448b3fe5a0ea | 05079661 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_wq_activate_free_worker / io_wq_worker_running | ||
2024/05/07 04:25 | upstream | dccb07f2914c | fa7a5cf0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_wq_activate_free_worker / io_wq_worker_running | ||
2024/05/07 04:23 | upstream | dccb07f2914c | fa7a5cf0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_wq_activate_free_worker / io_wq_worker_running | ||
2024/05/04 03:59 | upstream | ddb4c3f25b7b | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_wq_activate_free_worker / io_wq_worker_running | ||
2024/05/04 03:59 | upstream | ddb4c3f25b7b | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_wq_activate_free_worker / io_wq_worker_running |