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BUG: KCSAN: data-race in kick_pool / wq_worker_running

read-write to 0xffff888237c2b6e4 of 4 bytes by task 6457 on cpu 0:
 wq_worker_running+0x95/0x120 kernel/workqueue.c:1400
 schedule_timeout+0xb7/0x170 kernel/time/sleep_timeout.c:99
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common+0xfa/0x1e0 kernel/sched/completion.c:127
 usb_start_wait_urb+0xd6/0x190 drivers/usb/core/message.c:64
 usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
 usb_control_msg+0x18f/0x250 drivers/usb/core/message.c:154
 get_port_status drivers/usb/core/hub.c:605 [inline]
 hub_ext_port_status+0xc0/0x480 drivers/usb/core/hub.c:622
 hub_port_wait_reset drivers/usb/core/hub.c:-1 [inline]
 hub_port_reset+0x53a/0xe50 drivers/usb/core/hub.c:3061
 hub_port_init+0x193/0x1680 drivers/usb/core/hub.c:4903
 hub_port_connect drivers/usb/core/hub.c:5460 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5671 [inline]
 port_event drivers/usb/core/hub.c:5831 [inline]
 hub_event+0x1965/0x2940 drivers/usb/core/hub.c:5913
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0x4ce/0x9d0 kernel/workqueue.c:3321
 worker_thread+0x582/0x770 kernel/workqueue.c:3402
 kthread+0x486/0x510 kernel/kthread.c:464
 ret_from_fork+0xda/0x150 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

read to 0xffff888237c2b6e4 of 4 bytes by interrupt on cpu 1:
 need_more_worker kernel/workqueue.c:934 [inline]
 kick_pool+0x49/0x2d0 kernel/workqueue.c:1240
 __queue_work+0x8d6/0xb60 kernel/workqueue.c:2342
 queue_work_on+0xd1/0x160 kernel/workqueue.c:2392
 wg_queue_enqueue_per_device_and_peer drivers/net/wireguard/queueing.h:176 [inline]
 wg_packet_consume_data drivers/net/wireguard/receive.c:526 [inline]
 wg_packet_receive+0xf55/0x1390 drivers/net/wireguard/receive.c:576
 wg_receive+0x4e/0x80 drivers/net/wireguard/socket.c:326
 udpv6_queue_rcv_one_skb+0xb6e/0xc00 net/ipv6/udp.c:861
 udpv6_queue_rcv_skb+0x1fe/0x2b0 net/ipv6/udp.c:923
 udp6_unicast_rcv_skb+0x195/0x1b0 net/ipv6/udp.c:1063
 __udp6_lib_rcv+0xa01/0xb20 net/ipv6/udp.c:1152
 udpv6_rcv+0x4f/0x60 net/ipv6/udp.c:1266
 ip6_protocol_deliver_rcu+0xa7c/0x10d0 net/ipv6/ip6_input.c:436
 ip6_input_finish net/ipv6/ip6_input.c:480 [inline]
 NF_HOOK include/linux/netfilter.h:317 [inline]
 ip6_input+0xbe/0x1b0 net/ipv6/ip6_input.c:491
 dst_input include/net/dst.h:469 [inline]
 ip6_rcv_finish+0x1f8/0x330 net/ipv6/ip6_input.c:79
 NF_HOOK include/linux/netfilter.h:317 [inline]
 ipv6_rcv+0x72/0x150 net/ipv6/ip6_input.c:309
 __netif_receive_skb_one_core net/core/dev.c:5977 [inline]
 __netif_receive_skb+0x9e/0x270 net/core/dev.c:6090
 process_backlog+0x229/0x420 net/core/dev.c:6442
 __napi_poll+0x63/0x3a0 net/core/dev.c:7414
 napi_poll net/core/dev.c:7478 [inline]
 net_rx_action+0x391/0x830 net/core/dev.c:7605
 handle_softirqs+0xb7/0x290 kernel/softirq.c:579
 do_softirq+0x5d/0x90 kernel/softirq.c:480
 __local_bh_enable_ip+0x70/0x80 kernel/softirq.c:407
 __raw_read_unlock_bh include/linux/rwlock_api_smp.h:257 [inline]
 _raw_read_unlock_bh+0x1b/0x30 kernel/locking/spinlock.c:284
 wg_socket_send_skb_to_peer+0x111/0x130 drivers/net/wireguard/socket.c:184
 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
 wg_packet_tx_worker+0x12d/0x330 drivers/net/wireguard/send.c:276
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0x4ce/0x9d0 kernel/workqueue.c:3321
 worker_thread+0x582/0x770 kernel/workqueue.c:3402
 kthread+0x486/0x510 kernel/kthread.c:464
 ret_from_fork+0xda/0x150 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

value changed: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 6442 Comm: kworker/1:12 Not tainted 6.15.0-syzkaller-07774-g90b83efa6701 #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
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