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BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_timer

write to 0xffffffff85ecf7f0 of 4 bytes by interrupt on cpu 0:
 tick_sched_do_timer kernel/time/tick-sched.c:193 [inline]
 tick_sched_timer+0x2b0/0x2d0 kernel/time/tick-sched.c:1474
 __run_hrtimer+0x132/0x420 kernel/time/hrtimer.c:1685
 __hrtimer_run_queues kernel/time/hrtimer.c:1749 [inline]
 hrtimer_interrupt+0x36e/0xa70 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0xa3/0x250 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x88/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20
 __napi_alloc_skb+0x0/0x400
 napi_alloc_skb include/linux/skbuff.h:3307 [inline]
 page_to_skb+0x206/0x790 drivers/net/virtio_net.c:464
 receive_mergeable+0x21d/0x1650 drivers/net/virtio_net.c:1084
 receive_buf+0xbc/0xf10 drivers/net/virtio_net.c:1223
 virtnet_receive drivers/net/virtio_net.c:1518 [inline]
 virtnet_poll+0x33a/0x8e0 drivers/net/virtio_net.c:1627
 __napi_poll+0x65/0x390 net/core/dev.c:6486
 napi_poll net/core/dev.c:6553 [inline]
 net_rx_action+0x37e/0x730 net/core/dev.c:6664
 __do_softirq+0x158/0x2e3 kernel/softirq.c:571
 __irq_exit_rcu kernel/softirq.c:650 [inline]
 irq_exit_rcu+0x41/0x70 kernel/softirq.c:662
 common_interrupt+0x4a/0xc0 arch/x86/kernel/irq.c:240
 asm_common_interrupt+0x27/0x40

read to 0xffffffff85ecf7f0 of 4 bytes by task 0 on cpu 1:
 tick_nohz_next_event+0x1ee/0x2c0 kernel/time/tick-sched.c:853
 tick_nohz_get_sleep_length+0x15b/0x250 kernel/time/tick-sched.c:1239
 menu_select+0x347/0x1010 drivers/cpuidle/governors/menu.c:283
 cpuidle_select+0x3d/0x50 drivers/cpuidle/cpuidle.c:322
 cpuidle_idle_call kernel/sched/idle.c:229 [inline]
 do_idle+0x17e/0x250 kernel/sched/idle.c:303
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400
 start_secondary+0x78/0x80 arch/x86/kernel/smpboot.c:266
 secondary_startup_64_no_verify+0xcf/0xdb

value changed: 0xffffffff -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.18.0-syzkaller-10139-g8291eaafed36-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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