================================================================== BUG: KCSAN: data-race in hrtimer_interrupt / print_tickdevice write to 0xffff888237d1c218 of 8 bytes by interrupt on cpu 1: hrtimer_interrupt+0x80/0x4a0 kernel/time/hrtimer.c:1906 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x5c/0x1d0 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x32/0x80 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 read to 0xffff888237d1c218 of 8 bytes by task 17525 on cpu 0: print_tickdevice+0x144/0x340 kernel/time/timer_list.c:208 timer_list_show+0x79/0x180 kernel/time/timer_list.c:300 seq_read_iter+0x655/0x930 fs/seq_file.c:272 proc_reg_read_iter+0x118/0x190 fs/proc/inode.c:299 copy_splice_read+0x383/0x5b0 fs/splice.c:365 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x269/0x670 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x398/0x660 fs/read_write.c:1363 __do_sys_sendfile64 fs/read_write.c:1424 [inline] __se_sys_sendfile64 fs/read_write.c:1410 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1410 x64_sys_call+0xfbd/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:41 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000002a5f730580 -> 0x7fffffffffffffff Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 17525 Comm: syz.3.6147 Tainted: G W 6.14.0-rc1-syzkaller-00235-g9946eaf552b1 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ==================================================================