================================================================== BUG: KCSAN: data-race in run_timer_softirq / try_to_del_timer_sync write to 0xffff88812c11dc88 of 8 bytes by interrupt on cpu 1: expire_timers kernel/time/timer.c:1451 [inline] __run_timers kernel/time/timer.c:1774 [inline] __run_timers kernel/time/timer.c:1741 [inline] run_timer_softirq+0xb1c/0xbd0 kernel/time/timer.c:1787 __do_softirq+0x118/0x34a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0xb5/0xd0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0xe2/0x270 arch/x86/kernel/apic/apic.c:1140 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 tomoyo_update_domain+0x259/0x440 security/tomoyo/domain.c:125 tomoyo_update_path2_acl security/tomoyo/file.c:554 [inline] tomoyo_write_file+0x400/0x540 security/tomoyo/file.c:1028 tomoyo_write_domain2+0xab/0x120 security/tomoyo/common.c:1152 tomoyo_add_entry security/tomoyo/common.c:2042 [inline] tomoyo_supervisor+0xa85/0xc90 security/tomoyo/common.c:2103 tomoyo_audit_path2_log security/tomoyo/file.c:182 [inline] tomoyo_path2_perm+0x3f7/0x470 security/tomoyo/file.c:943 tomoyo_path_rename+0x97/0xd0 security/tomoyo/tomoyo.c:285 security_path_rename+0x17d/0x1e0 security/security.c:1130 do_renameat2+0x6d5/0xa50 fs/namei.c:4433 __do_sys_renameat2 fs/namei.c:4472 [inline] __se_sys_renameat2 fs/namei.c:4469 [inline] __x64_sys_renameat2+0x6c/0x80 fs/namei.c:4469 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88812c11dc88 of 8 bytes by task 10 on cpu 0: try_to_del_timer_sync+0x40/0xb0 kernel/time/timer.c:1226 del_timer_sync+0x68/0xa0 kernel/time/timer.c:1366 schedule_timeout+0x106/0x280 kernel/time/timer.c:1899 rcu_gp_fqs_loop+0x34c/0x540 kernel/rcu/tree.c:1674 rcu_gp_kthread+0x113/0x1e0 kernel/rcu/tree.c:1836 kthread+0x203/0x230 kernel/kthread.c:268 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10 Comm: rcu_preempt Not tainted 5.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================