================================================================== BUG: KCSAN: data-race in clockevents_program_event / print_tickdevice write to 0xffff888237d1aed8 of 8 bytes by task 1814 on cpu 1: clockevents_program_event+0x30/0x1e0 kernel/time/clockevents.c:313 tick_program_event+0x84/0xd0 kernel/time/tick-oneshot.c:44 __hrtimer_reprogram kernel/time/hrtimer.c:681 [inline] hrtimer_reprogram+0x20b/0x250 kernel/time/hrtimer.c:866 hrtimer_start_range_ns+0x410/0x6f0 kernel/time/hrtimer.c:1299 hrtimer_start_expires include/linux/hrtimer.h:432 [inline] hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1965 [inline] do_nanosleep+0x88/0x300 kernel/time/hrtimer.c:2041 hrtimer_nanosleep+0x10b/0x200 kernel/time/hrtimer.c:2097 common_nsleep+0x64/0x80 kernel/time/posix-timers.c:1236 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1276 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline] __x64_sys_clock_nanosleep+0x20c/0x240 kernel/time/posix-timers.c:1254 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888237d1aed8 of 8 bytes by task 8809 on cpu 0: print_tickdevice+0x158/0x370 kernel/time/timer_list.c:204 timer_list_show+0x74/0x180 kernel/time/timer_list.c:296 seq_read_iter+0x676/0x8e0 fs/seq_file.c:272 proc_reg_read_iter+0xfa/0x170 fs/proc/inode.c:305 call_read_iter include/linux/fs.h:2185 [inline] generic_file_splice_read+0xde/0x2b0 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x26c/0x620 fs/splice.c:865 do_splice_direct+0xfb/0x180 fs/splice.c:974 do_sendfile+0x3bf/0x910 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+0x10c/0x150 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000089d44fd098 -> 0x00000089d409e14d Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 8809 Comm: syz-executor.5 Not tainted 6.1.0-rc6-syzkaller-00176-g08ad43d554ba-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 ==================================================================