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BUG: KCSAN: data-race in hrtimer_interrupt / print_cpu

write to 0xffff888237c1ffa0 of 8 bytes by interrupt on cpu 0:
 hrtimer_interrupt+0x18c/0x7b0 kernel/time/hrtimer.c:1810
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x5c/0x1a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x6e/0x80 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
 memcpy_orig+0x8e/0x140 arch/x86/lib/memcpy_64.S:104
 prepare_creds+0x69/0x480 kernel/cred.c:219
 prepare_exec_creds+0x14/0xe0 kernel/cred.c:261
 prepare_bprm_creds fs/exec.c:1497 [inline]
 bprm_execve+0x77/0xc60 fs/exec.c:1852
 kernel_execve+0x60f/0x670 fs/exec.c:2039
 call_usermodehelper_exec_async+0x19d/0x250 kernel/umh.c:110
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read to 0xffff888237c1ffa0 of 8 bytes by task 9258 on cpu 1:
 print_cpu+0x2fb/0x670 kernel/time/timer_list.c:133
 timer_list_show+0x115/0x180 kernel/time/timer_list.c:295
 seq_read_iter+0x2d7/0x940 fs/seq_file.c:230
 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299
 call_read_iter include/linux/fs.h:2104 [inline]
 new_sync_read fs/read_write.c:395 [inline]
 vfs_read+0x5bc/0x6b0 fs/read_write.c:476
 ksys_pread64 fs/read_write.c:671 [inline]
 __do_sys_pread64 fs/read_write.c:681 [inline]
 __se_sys_pread64 fs/read_write.c:678 [inline]
 __x64_sys_pread64+0xf7/0x150 fs/read_write.c:678
 x64_sys_call+0x263b/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:18
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000234590a0335 -> 0x00000234590b0336

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 9258 Comm: syz-executor.0 Tainted: G        W          6.9.0-rc6-syzkaller-00113-g49a73b1652c5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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