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BUG: KCSAN: data-race in hrtimer_interrupt / print_cpu

write to 0xffff888237d197e0 of 8 bytes by interrupt on cpu 1:
 hrtimer_interrupt+0x1fb/0xaf0 kernel/time/hrtimer.c:1803
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x6f/0x1c0 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x64/0x80 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 is_atomic kernel/kcsan/core.c:249 [inline]
 should_watch kernel/kcsan/core.c:266 [inline]
 check_access kernel/kcsan/core.c:633 [inline]
 __tsan_read4+0x134/0x180 kernel/kcsan/core.c:854
 jhash2 include/linux/jhash.h:128 [inline]
 hash_futex kernel/futex.c:419 [inline]
 queue_lock kernel/futex.c:2449 [inline]
 futex_wait_setup+0xf9/0x390 kernel/futex.c:2904
 futex_wait+0x12d/0x440 kernel/futex.c:2949
 do_futex+0x9ee/0x2050 kernel/futex.c:3964
 __do_sys_futex kernel/futex.c:4041 [inline]
 __se_sys_futex+0xea/0x3a0 kernel/futex.c:4022
 __x64_sys_futex+0x74/0x80 kernel/futex.c:4022
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888237d197e0 of 8 bytes by task 32506 on cpu 0:
 print_cpu+0x32e/0x690 kernel/time/timer_list.c:133
 timer_list_show+0x114/0x180 kernel/time/timer_list.c:291
 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:2157 [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+0x63e/0xbb0 fs/read_write.c:1249
 __do_sys_sendfile64 fs/read_write.c:1314 [inline]
 __se_sys_sendfile64 fs/read_write.c:1300 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1300
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00000064d87c03ad -> 0x00000064d88bc621

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 32506 Comm: syz-executor.5 Not tainted 5.15.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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