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BUG: KCSAN: data-race in hrtimer_interrupt / print_tickdevice

write to 0xffff888237c1af18 of 8 bytes by interrupt on cpu 0:
 hrtimer_interrupt+0xb3/0xac0 kernel/time/hrtimer.c:1790
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0xa3/0x240 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x88/0xb0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 __tsan_read8+0xe/0x180 kernel/kcsan/core.c:1014
 do_anonymous_page+0x410/0x8d0 mm/memory.c:3826
 handle_pte_fault mm/memory.c:4568 [inline]
 __handle_mm_fault mm/memory.c:4705 [inline]
 handle_mm_fault+0x814/0x1590 mm/memory.c:4803
 faultin_page mm/gup.c:969 [inline]
 __get_user_pages+0x342/0xc10 mm/gup.c:1190
 __get_user_pages_locked mm/gup.c:1375 [inline]
 __get_user_pages_remote+0x17f/0x610 mm/gup.c:2021
 pin_user_pages_remote+0x58/0x80 mm/gup.c:3093
 process_vm_rw_single_vec+0x17d/0x460 mm/process_vm_access.c:105
 process_vm_rw_core mm/process_vm_access.c:215 [inline]
 process_vm_rw+0x3dd/0x570 mm/process_vm_access.c:283
 __do_sys_process_vm_readv mm/process_vm_access.c:295 [inline]
 __se_sys_process_vm_readv mm/process_vm_access.c:291 [inline]
 __x64_sys_process_vm_readv+0x76/0x90 mm/process_vm_access.c:291
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888237c1af18 of 8 bytes by task 14287 on cpu 1:
 print_tickdevice+0x158/0x370 kernel/time/timer_list.c:204
 timer_list_show+0x74/0x180 kernel/time/timer_list.c:296
 seq_read_iter+0x60b/0x930 fs/seq_file.c:272
 proc_reg_read_iter+0xfc/0x170 fs/proc/inode.c:300
 call_read_iter include/linux/fs.h:2068 [inline]
 generic_file_splice_read+0x24f/0x330 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+0x106/0x190 fs/splice.c:979
 do_sendfile+0x675/0xc40 fs/read_write.c:1245
 __do_sys_sendfile64 fs/read_write.c:1310 [inline]
 __se_sys_sendfile64 fs/read_write.c:1296 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000002f6506693c -> 0x0000002f65489346

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 14287 Comm: syz-executor.4 Not tainted 5.17.0-rc4-syzkaller-00002-gd567f5db412e-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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