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BUG: KCSAN: data-race in can_receive / can_stat_update

read-write to 0xffff8881404edb78 of 8 bytes by interrupt on cpu 0:
 can_receive+0x1ca/0x1f0 net/can/af_can.c:673
 can_rcv+0xe7/0x180 net/can/af_can.c:688
 __netif_receive_skb_one_core net/core/dev.c:5674 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5787
 process_backlog+0x22e/0x440 net/core/dev.c:6119
 __napi_poll+0x63/0x3c0 net/core/dev.c:6885
 napi_poll net/core/dev.c:6954 [inline]
 net_rx_action+0x3a1/0x7f0 net/core/dev.c:7076
 handle_softirqs+0xbf/0x280 kernel/softirq.c:561
 do_softirq+0x5e/0x90 kernel/softirq.c:462
 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
 mod_peer_timer drivers/net/wireguard/timers.c:38 [inline]
 wg_timers_any_authenticated_packet_traversal+0xe5/0x110 drivers/net/wireguard/timers.c:215
 wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline]
 wg_packet_tx_worker+0xe9/0x360 drivers/net/wireguard/send.c:276
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310
 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391
 kthread+0x1d1/0x210 kernel/kthread.c:389
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read to 0xffff8881404edb78 of 8 bytes by interrupt on cpu 1:
 can_stat_update+0x465/0x6b0 net/can/proc.c:154
 call_timer_fn+0x3a/0x300 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1844 [inline]
 __run_timers kernel/time/timer.c:2418 [inline]
 __run_timer_base+0x417/0x640 kernel/time/timer.c:2430
 run_timer_base kernel/time/timer.c:2439 [inline]
 run_timer_softirq+0x31/0x70 kernel/time/timer.c:2449
 handle_softirqs+0xbf/0x280 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0x3a/0xc0 kernel/softirq.c:662
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x73/0x80 arch/x86/kernel/apic/apic.c:1049
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
 folio_pte_batch mm/internal.h:229 [inline]
 madvise_folio_pte_batch mm/madvise.c:340 [inline]
 madvise_cold_or_pageout_pte_range+0x59f/0xf30 mm/madvise.c:481
 walk_pmd_range mm/pagewalk.c:130 [inline]
 walk_pud_range mm/pagewalk.c:226 [inline]
 walk_p4d_range mm/pagewalk.c:264 [inline]
 walk_pgd_range+0x7e4/0x1110 mm/pagewalk.c:305
 __walk_page_range+0xed/0x350 mm/pagewalk.c:412
 walk_page_range_mm+0x395/0x4e0 mm/pagewalk.c:505
 walk_page_range+0x56/0x70 mm/pagewalk.c:584
 madvise_pageout_page_range mm/madvise.c:617 [inline]
 madvise_pageout mm/madvise.c:644 [inline]
 madvise_vma_behavior mm/madvise.c:1261 [inline]
 madvise_walk_vmas mm/madvise.c:1497 [inline]
 do_madvise+0x1da8/0x2a70 mm/madvise.c:1684
 __do_sys_madvise mm/madvise.c:1700 [inline]
 __se_sys_madvise mm/madvise.c:1698 [inline]
 __x64_sys_madvise+0x61/0x70 mm/madvise.c:1698
 x64_sys_call+0x23ab/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:29
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x0000000000002025 -> 0x0000000000002026

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 16245 Comm: syz.4.3578 Tainted: G        W          6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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