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BUG: KCSAN: data-race in hrtimer_interrupt / print_tickdevice

write to 0xffff888237c1bf18 of 8 bytes by interrupt on cpu 0:
 hrtimer_interrupt+0x94/0x7c0 kernel/time/hrtimer.c:1790
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0xa7/0x250 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
 check_kcov_mode kernel/kcov.c:173 [inline]
 __sanitizer_cov_trace_pc+0x30/0x60 kernel/kcov.c:207
 avc_has_perm_noaudit+0x36/0x260 security/selinux/avc.c:1141
 cred_has_capability security/selinux/hooks.c:1602 [inline]
 selinux_capable+0x124/0x260 security/selinux/hooks.c:2121
 security_capable+0x4e/0x80 security/security.c:837
 ns_capable_common kernel/capability.c:362 [inline]
 ns_capable kernel/capability.c:383 [inline]
 capable_wrt_inode_uidgid+0x6f/0x190 kernel/capability.c:496
 generic_permission+0x1fd/0x380 fs/namei.c:435
 do_inode_permission fs/namei.c:466 [inline]
 inode_permission+0x77/0x300 fs/namei.c:526
 may_open+0x252/0x340 fs/namei.c:3188
 do_open fs/namei.c:3558 [inline]
 path_openat+0x1757/0x1d00 fs/namei.c:3715
 do_filp_open+0xf6/0x200 fs/namei.c:3742
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1348
 do_sys_open fs/open.c:1364 [inline]
 __do_sys_openat fs/open.c:1380 [inline]
 __se_sys_openat fs/open.c:1375 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1375
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888237c1bf18 of 8 bytes by task 14690 on cpu 1:
 print_tickdevice+0x144/0x340 kernel/time/timer_list.c:204
 timer_list_show+0x79/0x180 kernel/time/timer_list.c:296
 seq_read_iter+0x2bc/0x8f0 fs/seq_file.c:230
 proc_reg_read_iter+0x10e/0x180 fs/proc/inode.c:305
 call_read_iter include/linux/fs.h:1845 [inline]
 generic_file_splice_read+0xe3/0x290 fs/splice.c:402
 do_splice_to fs/splice.c:885 [inline]
 splice_direct_to_actor+0x25a/0x5f0 fs/splice.c:957
 do_splice_direct+0x104/0x180 fs/splice.c:1066
 do_sendfile+0x3b8/0x950 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64 fs/read_write.c:1309 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1309
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x000000a8c16f21b1 -> 0x000000a8c16fbdf1

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 14690 Comm: syz-executor.2 Not tainted 6.3.0-rc1-syzkaller-00003-g63355b9884b3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
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