RBP: 000000000072bea0 R08: 0000000020000240 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 00000000004c2046 R14: 00000000004cf918 R15: 0000000000000030 libceph: bad option at '' ================================================================== BUG: KMSAN: uninit-value in __list_del_entry_valid+0x38a/0x440 lib/list_debug.c:54 CPU: 0 PID: 12985 Comm: syz-executor4 Not tainted 4.17.0+ #17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:113 kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1368 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:634 __list_del_entry_valid+0x38a/0x440 lib/list_debug.c:54 __list_del_entry include/linux/list.h:117 [inline] list_move include/linux/list.h:170 [inline] pick_next_task_fair+0x20d7/0x2530 kernel/sched/fair.c:6968 pick_next_task+0x1ba/0x420 kernel/sched/core.c:3368 __schedule+0x20f/0x770 kernel/sched/core.c:3498 schedule+0x1cc/0x2f0 kernel/sched/core.c:3568 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x2c3/0x9c0 kernel/time/hrtimer.c:1689 hrtimer_nanosleep kernel/time/hrtimer.c:1743 [inline] __do_sys_nanosleep kernel/time/hrtimer.c:1775 [inline] __se_sys_nanosleep+0x4b3/0x6a0 kernel/time/hrtimer.c:1762 __x64_sys_nanosleep+0x92/0xc0 kernel/time/hrtimer.c:1762 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x4811e1 RSP: 002b:0000000000a3e950 EFLAGS: 00000293 ORIG_RAX: 0000000000000023 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004811e1 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000a3e960 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000a3e940 R11: 0000000000000293 R12: 0000000000048d17 R13: 0000000000000002 R14: 000000000072bea0 R15: 0000000000000001 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:287 [inline] kmsan_save_stack mm/kmsan/kmsan.c:302 [inline] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:692 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:478 __list_add include/linux/list.h:64 [inline] list_add include/linux/list.h:79 [inline] account_entity_enqueue kernel/sched/fair.c:2652 [inline] enqueue_entity kernel/sched/fair.c:4176 [inline] enqueue_task_fair+0x28f5/0x4490 kernel/sched/fair.c:5359 enqueue_task kernel/sched/core.c:751 [inline] activate_task kernel/sched/core.c:770 [inline] ttwu_activate kernel/sched/core.c:1658 [inline] ttwu_do_activate kernel/sched/core.c:1717 [inline] ttwu_queue kernel/sched/core.c:1862 [inline] try_to_wake_up+0x162f/0x2260 kernel/sched/core.c:2075 wake_up_process+0x34/0x40 kernel/sched/core.c:2148 swake_up_locked kernel/sched/swait.c:30 [inline] swake_up+0xfb/0x3b0 kernel/sched/swait.c:40 rcu_gp_kthread_wake kernel/rcu/tree.c:1787 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2890 [inline] rcu_process_callbacks+0x13b9/0x2060 kernel/rcu/tree.c:2914 __do_softirq+0x592/0x979 kernel/softirq.c:285 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:287 [inline] kmsan_save_stack mm/kmsan/kmsan.c:302 [inline] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:692 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:478 __write_once_size include/linux/compiler.h:224 [inline] __list_add include/linux/list.h:66 [inline] list_add include/linux/list.h:79 [inline] account_entity_enqueue kernel/sched/fair.c:2652 [inline] enqueue_entity kernel/sched/fair.c:4176 [inline] enqueue_task_fair+0x2947/0x4490 kernel/sched/fair.c:5359 enqueue_task kernel/sched/core.c:751 [inline] activate_task kernel/sched/core.c:770 [inline] ttwu_activate kernel/sched/core.c:1658 [inline] ttwu_do_activate kernel/sched/core.c:1717 [inline] ttwu_queue kernel/sched/core.c:1862 [inline] try_to_wake_up+0x162f/0x2260 kernel/sched/core.c:2075 wake_up_process+0x34/0x40 kernel/sched/core.c:2148 hrtimer_wakeup+0xac/0x100 kernel/time/hrtimer.c:1647 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0xc54/0x1630 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053 Local variable description: ----t.i.i@__se_sys_nanosleep Variable was created at: __se_sys_nanosleep+0x5f/0x6a0 kernel/time/hrtimer.c:1762 __x64_sys_nanosleep+0x92/0xc0 kernel/time/hrtimer.c:1762 ==================================================================