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BUG: KCSAN: data-race in hrtimer_interrupt / print_tickdevice

write to 0xffff888237d16f18 of 8 bytes by interrupt on cpu 1:
 hrtimer_interrupt+0x95/0xaf0 kernel/time/hrtimer.c:1642
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
 __sysvec_apic_timer_interrupt+0x6f/0x1c0 arch/x86/kernel/apic/apic.c:1106
 sysvec_apic_timer_interrupt+0x64/0x80 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
 check_kcov_mode kernel/kcov.c:165 [inline]
 write_comp_data kernel/kcov.c:218 [inline]
 __sanitizer_cov_trace_switch+0x97/0x100 kernel/kcov.c:320
 vsnprintf+0xec/0xed0 lib/vsprintf.c:2746
 audit_log_vformat+0x21c/0x470 kernel/audit.c:1926
 audit_log_format+0x76/0xa0 kernel/audit.c:1960
 audit_log_task+0x110/0x170 kernel/auditsc.c:2631
 audit_seccomp+0x5e/0xf0 kernel/auditsc.c:2680
 seccomp_log kernel/seccomp.c:1009 [inline]
 __seccomp_filter+0xd24/0xf20 kernel/seccomp.c:1309
 __secure_computing+0xfb/0x140 kernel/seccomp.c:1339
 syscall_trace_enter+0x120/0x290 kernel/entry/common.c:68
 __syscall_enter_from_user_work kernel/entry/common.c:90 [inline]
 syscall_enter_from_user_mode+0x1c/0x20 kernel/entry/common.c:108
 do_syscall_64+0x1e/0x90 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888237d16f18 of 8 bytes by task 27501 on cpu 0:
 print_tickdevice+0x158/0x370 kernel/time/timer_list.c:204
 timer_list_show+0x74/0x180 kernel/time/timer_list.c:296
 seq_read_iter+0x2ef/0x910 fs/seq_file.c:227
 proc_reg_read_iter+0xfc/0x170 fs/proc/inode.c:300
 call_read_iter include/linux/fs.h:2108 [inline]
 generic_file_splice_read+0x22a/0x310 fs/splice.c:311
 do_splice_to fs/splice.c:796 [inline]
 splice_direct_to_actor+0x2aa/0x650 fs/splice.c:870
 do_splice_direct+0xf5/0x170 fs/splice.c:979
 do_sendfile+0x773/0xda0 fs/read_write.c:1260
 __do_sys_sendfile64 fs/read_write.c:1325 [inline]
 __se_sys_sendfile64 fs/read_write.c:1311 [inline]
 __x64_sys_sendfile64+0xf2/0x130 fs/read_write.c:1311
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x000000788493df5f -> 0x00000078852c75df

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 27501 Comm: syz-executor.3 Tainted: G        W         5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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