================================================================== BUG: KCSAN: data-race in __queue_work / wq_worker_running read-write to 0xffff888237d2abe0 of 4 bytes by task 3227 on cpu 1: wq_worker_running+0x96/0xe0 kernel/workqueue.c:880 schedule_timeout+0xc1/0x290 kernel/time/timer.c:2167 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:571 [inline] synchronize_rcu_expedited_wait+0x22a/0xc40 kernel/rcu/tree_exp.h:622 rcu_exp_wait_wake kernel/rcu/tree_exp.h:688 [inline] rcu_exp_sel_wait_wake+0x355/0x730 kernel/rcu/tree_exp.h:722 wait_rcu_exp_gp+0x1a/0x20 kernel/rcu/tree_exp.h:512 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 arch/x86/entry/entry_64.S:308 read to 0xffff888237d2abe0 of 4 bytes by interrupt on cpu 0: __need_more_worker kernel/workqueue.c:785 [inline] insert_work kernel/workqueue.c:1365 [inline] __queue_work+0x79e/0xa60 kernel/workqueue.c:1517 queue_work_on+0x7e/0xe0 kernel/workqueue.c:1545 queue_work include/linux/workqueue.h:503 [inline] schedule_work include/linux/workqueue.h:564 [inline] key_put+0x55/0xa0 security/keys/key.c:653 put_cred_rcu+0x60/0x1d0 kernel/cred.c:117 rcu_do_batch kernel/rcu/tree.c:2244 [inline] rcu_core+0x5ad/0xc10 kernel/rcu/tree.c:2504 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2521 __do_softirq+0xf2/0x2c7 kernel/softirq.c:571 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 12 Comm: ksoftirqd/0 Not tainted 6.1.0-syzkaller-10971-g041fae9c105a-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 ==================================================================