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BUG: KCSAN: data-race in hrtimer_interrupt / print_cpu

read-write to 0xffff88813bc1ddd8 of 2 bytes by interrupt on cpu 0:
 hrtimer_interrupt+0x8a7/0xa10 kernel/time/hrtimer.c:1678
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1097
 asm_call_irq_on_stack+0xf/0x20
 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline]
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline]
 sysvec_apic_timer_interrupt+0x52/0x90 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
 arch_atomic64_read arch/x86/include/asm/atomic64_64.h:22 [inline]
 atomic64_read include/asm-generic/atomic-instrumented.h:838 [inline]
 atomic_long_read include/asm-generic/atomic-long.h:29 [inline]
 find_watchpoint kernel/kcsan/core.c:123 [inline]
 check_access kernel/kcsan/core.c:616 [inline]
 __tsan_read8+0x37/0x180 kernel/kcsan/core.c:842
 tomoyo_compare_number_union+0x19/0x90 security/tomoyo/file.c:115
 tomoyo_check_inet_acl+0x88/0x190 security/tomoyo/network.c:427
 tomoyo_check_acl+0xcc/0x200 security/tomoyo/domain.c:175
 tomoyo_inet_entry security/tomoyo/network.c:483 [inline]
 tomoyo_check_inet_address+0x25f/0x380 security/tomoyo/network.c:532
 tomoyo_socket_connect_permission+0x14a/0x180 security/tomoyo/network.c:710
 tomoyo_socket_connect+0x20/0x30 security/tomoyo/tomoyo.c:450
 security_socket_connect+0x45/0x90 security/security.c:2125
 __sys_connect_file net/socket.c:1848 [inline]
 __sys_connect+0x1da/0x280 net/socket.c:1869
 __do_sys_connect net/socket.c:1879 [inline]
 __se_sys_connect net/socket.c:1876 [inline]
 __x64_sys_connect+0x3d/0x50 net/socket.c:1876
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffff88813bc1ddd8 of 2 bytes by task 10987 on cpu 1:
 print_cpu+0x4de/0x7e0 kernel/time/timer_list.c:151
 timer_list_show+0x114/0x180 kernel/time/timer_list.c:311
 seq_read_iter+0x2d8/0x8e0 fs/seq_file.c:227
 proc_reg_read_iter+0xfc/0x170 fs/proc/inode.c:310
 call_read_iter include/linux/fs.h:1897 [inline]
 new_sync_read fs/read_write.c:415 [inline]
 vfs_read+0x552/0x5c0 fs/read_write.c:496
 ksys_read+0xce/0x180 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x3e/0x50 fs/read_write.c:642
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 10987 Comm: syz-executor.5 Not tainted 5.10.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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