================================================================== BUG: KCSAN: data-race in __queue_work / wq_worker_running read-write to 0xffff888237c2abe0 of 4 bytes by task 3222 on cpu 0: wq_worker_running+0x96/0xe0 kernel/workqueue.c:880 schedule_timeout+0xc1/0x290 kernel/time/timer.c:2167 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common+0x104/0x1c0 kernel/sched/completion.c:117 usb_start_wait_urb+0xdc/0x190 drivers/usb/core/message.c:63 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x17e/0x240 drivers/usb/core/message.c:153 get_port_status drivers/usb/core/hub.c:581 [inline] hub_ext_port_status+0xb4/0x380 drivers/usb/core/hub.c:598 usb_hub_port_status drivers/usb/core/hub.c:620 [inline] hub_port_debounce+0x1c5/0x230 drivers/usb/core/hub.c:4588 hub_port_debounce_be_stable drivers/usb/core/hub.h:174 [inline] hub_port_connect drivers/usb/core/hub.c:5256 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x1541/0x2b30 drivers/usb/core/hub.c:5791 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 0xffff888237c2abe0 of 4 bytes by task 31715 on cpu 1: __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 wg_queue_enqueue_per_peer_tx+0x118/0x210 drivers/net/wireguard/queueing.h:191 wg_packet_encrypt_worker+0x8b4/0xab0 drivers/net/wireguard/send.c:305 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 value changed: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 31715 Comm: kworker/1:2 Not tainted 6.2.0-rc4-syzkaller-00041-gc1649ec55708-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker ==================================================================