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BUG: KCSAN: data-race in wg_packet_handshake_receive_worker / wg_packet_rx_poll

read-write to 0xffff88811ae41d10 of 8 bytes by task 6047 on cpu 0:
 update_rx_stats drivers/net/wireguard/receive.c:23 [inline]
 wg_receive_handshake_packet drivers/net/wireguard/receive.c:198 [inline]
 wg_packet_handshake_receive_worker+0x49f/0x5d0 drivers/net/wireguard/receive.c:213
 process_one_work kernel/workqueue.c:3288 [inline]
 process_scheduled_works+0x513/0xa10 kernel/workqueue.c:3371
 worker_thread+0x58a/0x780 kernel/workqueue.c:3452
 kthread+0x22a/0x280 kernel/kthread.c:436
 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

read-write to 0xffff88811ae41d10 of 8 bytes by task 10553 on cpu 1:
 update_rx_stats drivers/net/wireguard/receive.c:23 [inline]
 wg_packet_consume_data_done drivers/net/wireguard/receive.c:358 [inline]
 wg_packet_rx_poll+0xed7/0x10f0 drivers/net/wireguard/receive.c:474
 __napi_poll+0x61/0x330 net/core/dev.c:7709
 napi_threaded_poll_loop+0x1db/0x660 net/core/dev.c:7829
 napi_threaded_poll+0x193/0x240 net/core/dev.c:7884
 kthread+0x22a/0x280 kernel/kthread.c:436
 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

value changed: 0x0000000000001960 -> 0x00000000000019f4

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 10553 Comm: napi/wg0-0 Tainted: G        W           syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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