================================================================== BUG: KCSAN: data-race in ktime_get_ts64 / timekeeping_advance write to 0xffffffff8624b2c8 of 280 bytes by interrupt on cpu 0: timekeeping_advance+0x88e/0xd80 include/linux/string.h:380 update_wall_time+0x19/0x20 kernel/time/timekeeping.c:2137 tick_do_update_jiffies64+0x1a4/0x250 kernel/time/tick-sched.c:94 tick_sched_do_timer+0xd4/0xe0 kernel/time/tick-sched.c:138 tick_sched_timer+0x43/0xe0 kernel/time/tick-sched.c:1303 __run_hrtimer kernel/time/hrtimer.c:1517 [inline] __hrtimer_run_queues+0x274/0x5f0 kernel/time/hrtimer.c:1579 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1641 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 tomoyo_check_acl+0x9d/0x270 security/tomoyo/domain.c:170 tomoyo_path_permission security/tomoyo/file.c:586 [inline] tomoyo_path_permission+0xe3/0x160 security/tomoyo/file.c:573 tomoyo_check_open_permission+0x2fd/0x320 security/tomoyo/file.c:777 tomoyo_file_open security/tomoyo/tomoyo.c:319 [inline] tomoyo_file_open+0x75/0x90 security/tomoyo/tomoyo.c:314 security_file_open+0x69/0x210 security/security.c:1497 do_dentry_open+0x211/0x970 fs/open.c:784 vfs_open+0x62/0x80 fs/open.c:914 do_last fs/namei.c:3420 [inline] path_openat+0xf9f/0x3580 fs/namei.c:3537 do_filp_open+0x11e/0x1b0 fs/namei.c:3567 do_sys_open+0x3b3/0x4f0 fs/open.c:1097 __do_sys_open fs/open.c:1115 [inline] __se_sys_open fs/open.c:1110 [inline] __x64_sys_open+0x55/0x70 fs/open.c:1110 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffffffff8624b2e8 of 8 bytes by task 13103 on cpu 1: timekeeping_delta_to_ns kernel/time/timekeeping.c:363 [inline] timekeeping_get_ns kernel/time/timekeeping.c:375 [inline] ktime_get_ts64+0x12c/0x2c0 kernel/time/timekeeping.c:892 do_recvmmsg+0x232/0x5c0 net/socket.c:2712 __sys_recvmmsg+0x9d/0x200 net/socket.c:2774 __do_sys_recvmmsg net/socket.c:2795 [inline] __se_sys_recvmmsg net/socket.c:2788 [inline] __x64_sys_recvmmsg+0x89/0xb0 net/socket.c:2788 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 13103 Comm: syz-executor.3 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================