IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 ================================================================== BUG: KMSAN: uninit-value in __list_add_valid+0x1b8/0x450 lib/list_debug.c:23 CPU: 0 PID: 4486 Comm: syz-executor0 Not tainted 4.17.0+ #9 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:1125 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620 __list_add_valid+0x1b8/0x450 lib/list_debug.c:23 __list_add include/linux/list.h:60 [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+0xe12/0x4490 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_report_qs_rsp kernel/rcu/tree.c:2366 [inline] rcu_report_qs_rnp+0x767/0x880 kernel/rcu/tree.c:2433 rcu_report_qs_rdp kernel/rcu/tree.c:2516 [inline] rcu_check_quiescent_state kernel/rcu/tree.c:2553 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2881 [inline] rcu_process_callbacks+0x90a/0x2060 kernel/rcu/tree.c:2914 __do_softirq+0x592/0x979 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x202/0x240 kernel/softirq.c:405 exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525 smp_apic_timer_interrupt+0x64/0x90 arch/x86/kernel/apic/apic.c:1055 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:866 RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:78 [inline] RIP: 0010:kmsan_kmalloc+0xc6/0x100 mm/kmsan/kmsan.c:320 RSP: 0018:ffff8801c837f858 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000246 RBX: ffff880196449b00 RCX: 0000000000000011 RDX: 0000000000000010 RSI: ffffea0009859ba8 RDI: ffff880196449b00 RBP: ffff8801c837f898 R08: 0000000001000200 R09: 0000000000000001 R10: 0000000000000002 R11: ffffffff83ac4fe0 R12: ffff88021f00d980 R13: ffff8801c7aeba80 R14: 0000000000000040 R15: 0000000001000200 kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan.c:325 slab_post_alloc_hook mm/slab.h:446 [inline] slab_alloc_node mm/slub.c:2753 [inline] slab_alloc mm/slub.c:2761 [inline] kmem_cache_alloc+0x68c/0xb70 mm/slub.c:2766 anon_vma_chain_alloc mm/rmap.c:128 [inline] anon_vma_clone+0x15c/0xbf0 mm/rmap.c:268 anon_vma_fork+0x106/0xb20 mm/rmap.c:331 dup_mmap kernel/fork.c:467 [inline] dup_mm kernel/fork.c:1235 [inline] copy_mm kernel/fork.c:1289 [inline] copy_process+0x65df/0x9be0 kernel/fork.c:1795 _do_fork+0x353/0xf60 kernel/fork.c:2089 __do_sys_clone kernel/fork.c:2196 [inline] __se_sys_clone kernel/fork.c:2190 [inline] __x64_sys_clone+0x15e/0x1b0 kernel/fork.c:2190 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x41f949 RSP: 002b:0000000000a3fc00 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000041f949 RDX: 0000000000a3fc0c RSI: 0000000000000000 RDI: 0000000000100011 RBP: 0000000000a3fdb0 R08: 0000000000a44a60 R09: 000000000000004d R10: 0000000000000008 R11: 0000000000000246 R12: 00000000004119a0 R13: 0000000000411a30 R14: 0000000000000000 R15: 0000000000000000 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:282 [inline] kmsan_save_stack mm/kmsan/kmsan.c:297 [inline] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:689 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464 __list_add include/linux/list.h:65 [inline] list_add include/linux/list.h:79 [inline] list_move include/linux/list.h:171 [inline] pick_next_task_fair+0x2474/0x2530 kernel/sched/fair.c:6968 pick_next_task+0x1ba/0x420 kernel/sched/core.c:3368 __schedule+0x20f/0x770 kernel/sched/core.c:3498 do_task_dead+0xc8/0xf0 kernel/sched/core.c:3541 do_exit+0x347e/0x3930 kernel/exit.c:924 do_group_exit+0x1a0/0x360 kernel/exit.c:970 __do_sys_exit_group+0x21/0x30 kernel/exit.c:981 __se_sys_exit_group+0x14/0x20 kernel/exit.c:979 __x64_sys_exit_group+0x4c/0x50 kernel/exit.c:979 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Local variable description: ----flags.i.i.i.i@_raw_spin_lock_irqsave Variable was created at: _raw_spin_lock_irqsave+0x45/0xf0 kernel/locking/spinlock.c:150 do_task_dead+0x40/0xf0 kernel/sched/core.c:3536 ==================================================================