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BUG: KCSAN: data-race in hrtimer_reprogram / print_cpu

write to 0xffff888237d1f3e0 of 8 bytes by task 10209 on cpu 1:
 __hrtimer_reprogram kernel/time/hrtimer.c:661 [inline]
 hrtimer_reprogram+0x1a8/0x220 kernel/time/hrtimer.c:868
 hrtimer_start_range_ns+0x4e3/0x660 kernel/time/hrtimer.c:1302
 hrtimer_start_expires include/linux/hrtimer.h:392 [inline]
 hrtimer_restart include/linux/hrtimer.h:400 [inline]
 common_hrtimer_rearm+0xa1/0xb0 kernel/time/posix-timers.c:249
 posixtimer_rearm+0xc3/0x190 kernel/time/posix-timers.c:267
 dequeue_signal+0x281/0x420 kernel/signal.c:695
 get_signal+0x36c/0x10a0 kernel/signal.c:2773
 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0x57/0x130 kernel/entry/common.c:212
 do_syscall_64+0x65/0x120 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888237d1f3e0 of 8 bytes by task 10247 on cpu 0:
 print_cpu+0x2fb/0x640 kernel/time/timer_list.c:133
 timer_list_show+0x115/0x180 kernel/time/timer_list.c:291
 seq_read_iter+0x612/0x8f0 fs/seq_file.c:272
 proc_reg_read_iter+0x114/0x180 fs/proc/inode.c:302
 call_read_iter include/linux/fs.h:2079 [inline]
 copy_splice_read+0x26b/0x4b0 fs/splice.c:365
 do_splice_read fs/splice.c:985 [inline]
 splice_direct_to_actor+0x268/0x650 fs/splice.c:1089
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0xd7/0x150 fs/splice.c:1233
 do_sendfile+0x377/0x880 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64 fs/read_write.c:1348 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000003494845580 -> 0x00000034947c242b

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 10247 Comm: syz-executor.4 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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