================================================================== BUG: KCSAN: data-race in clockevents_program_event / print_tickdevice write to 0xffff888237d1bf18 of 8 bytes by interrupt on cpu 1: clockevents_program_event+0x34/0x1d0 kernel/time/clockevents.c:313 tick_program_event+0x7c/0xc0 kernel/time/tick-oneshot.c:44 __hrtimer_reprogram kernel/time/hrtimer.c:681 [inline] hrtimer_reprogram+0x1eb/0x230 kernel/time/hrtimer.c:866 hrtimer_update_softirq_timer+0x1e0/0x1f0 kernel/time/hrtimer.c:1209 hrtimer_run_softirq+0xf8/0x120 kernel/time/hrtimer.c:1769 __do_softirq+0xc1/0x265 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x57/0xa0 kernel/softirq.c:650 sysvec_apic_timer_interrupt+0x6d/0x80 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 ext4_getattr+0x0/0x4f0 fs/ext4/inode.c:5672 vfs_getattr_nosec+0x1e3/0x3c0 fs/stat.c:133 vfs_getattr fs/stat.c:170 [inline] vfs_fstat fs/stat.c:192 [inline] __do_sys_newfstat fs/stat.c:456 [inline] __se_sys_newfstat+0xa5/0x2d0 fs/stat.c:453 __x64_sys_newfstat+0x31/0x40 fs/stat.c:453 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888237d1bf18 of 8 bytes by task 19282 on cpu 0: print_tickdevice+0x144/0x340 kernel/time/timer_list.c:204 timer_list_show+0x79/0x180 kernel/time/timer_list.c:296 seq_read_iter+0x612/0x8f0 fs/seq_file.c:272 proc_reg_read_iter+0x10e/0x180 fs/proc/inode.c:305 call_read_iter include/linux/fs.h:1845 [inline] generic_file_splice_read+0xe3/0x290 fs/splice.c:402 do_splice_to fs/splice.c:885 [inline] splice_direct_to_actor+0x25a/0x5f0 fs/splice.c:956 do_splice_direct+0x104/0x180 fs/splice.c:1065 do_sendfile+0x3b8/0x950 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+0x110/0x150 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000017b665d5d80 -> 0x0000017b65e560b2 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 19282 Comm: syz-executor.5 Not tainted 6.3.0-rc6-syzkaller-00188-g3e7bb4f24617 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 ==================================================================