syzbot

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BUG: KCSAN: data-race in wg_packet_decrypt_worker / wg_packet_rx_poll

write to 0xffff88813840a088 of 8 bytes by interrupt on cpu 1:
 counter_validate drivers/net/wireguard/receive.c:321 [inline]
 wg_packet_rx_poll+0x3a2/0xf80 drivers/net/wireguard/receive.c:461
 __napi_poll+0x60/0x3b0 net/core/dev.c:6496
 napi_poll net/core/dev.c:6563 [inline]
 net_rx_action+0x32b/0x750 net/core/dev.c:6696
 __do_softirq+0xc1/0x265 kernel/softirq.c:571
 do_softirq+0x7e/0xb0 kernel/softirq.c:472
 __local_bh_enable_ip+0x64/0x70 kernel/softirq.c:396
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
 _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210
 spin_unlock_bh include/linux/spinlock.h:395 [inline]
 ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
 wg_packet_decrypt_worker+0x171/0x700 drivers/net/wireguard/receive.c:499
 process_one_work+0x3e6/0x750 kernel/workqueue.c:2405
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2552
 kthread+0x1d7/0x210 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

read to 0xffff88813840a088 of 8 bytes by task 3152 on cpu 0:
 decrypt_packet drivers/net/wireguard/receive.c:252 [inline]
 wg_packet_decrypt_worker+0x220/0x700 drivers/net/wireguard/receive.c:501
 process_one_work+0x3e6/0x750 kernel/workqueue.c:2405
 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2552
 kthread+0x1d7/0x210 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

value changed: 0x000000000000006e -> 0x0000000000000070

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3152 Comm: kworker/0:3 Not tainted 6.4.0-rc4-syzkaller-00265-g4ecd704a4c51 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: wg-crypt-wg2 wg_packet_decrypt_worker
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