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BUG: KCSAN: data-race in __run_hrtimer kernel/time/hrtimer.c:1416 [inline] and hrtimer_active+0x84/0x1a0
BUG: KCSAN: data-race in __hrtimer_run_queues+0x176/0x600 kernel/time/hrtimer.c:1451 and hrtimer_active+0x84/0x1a0

read to 0xffff88812be1d818 of 8 bytes by interrupt on cpu 1:
 hrtimer_active+0x84/0x1a0 kernel/time/hrtimer.c:1321
 entity_tick kernel/sched/fair.c:4301 [inline]
 task_tick_fair+0x4c/0x920 kernel/sched/fair.c:9977
 scheduler_tick+0x5c/0xe0 kernel/sched/core.c:3471
 update_process_times+0x5f/0x80 kernel/time/timer.c:1644
 tick_sched_handle+0x75/0x100 kernel/time/tick-sched.c:167
 tick_sched_timer+0x58/0xe0 kernel/time/tick-sched.c:1296
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x288/0x600 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 __tsan_read8+0x1/0x30 kernel/kcsan/kcsan.c:31
 ip6_input_finish+0x30/0x50 net/ipv6/ip6_input.c:438
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip6_input+0x177/0x190 net/ipv6/ip6_input.c:447
 dst_input include/net/dst.h:442 [inline]
 ip6_rcv_finish+0x110/0x140 net/ipv6/ip6_input.c:76

write to 0xffff88812be1d818 of 8 bytes by interrupt on cpu 0:
 __run_hrtimer kernel/time/hrtimer.c:1416 [inline]
 __hrtimer_run_queues+0x176/0x600 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 page_add_file_rmap+0x31/0x3f0 mm/rmap.c:1183
 insert_page mm/memory.c:1440 [inline]
 vm_insert_page+0x4cb/0x6a0 mm/memory.c:1491
 kcov_mmap+0xf7/0x150 kernel/kcov.c:297
 call_mmap include/linux/fs.h:1875 [inline]
 mmap_region+0x83c/0xd50 mm/mmap.c:1788
 do_mmap+0x6b0/0xb20 mm/mmap.c:1561
 do_mmap_pgoff include/linux/mm.h:2374 [inline]
 vm_mmap_pgoff+0x12d/0x190 mm/util.c:391
 ksys_mmap_pgoff+0x2d8/0x420 mm/mmap.c:1611
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline]
 __x64_sys_mmap+0x91/0xc0 arch/x86/kernel/sys_x86_64.c:91
 do_syscall_64+0xcf/0x2f0 arch/x86/entry/common.c:296

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 7423 Comm: syz-executor.1 Not tainted 5.3.0+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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