device veth0_vlan entered promiscuous mode device veth1_vlan entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready INFO: rcu_sched detected stalls on CPUs/tasks: (detected by 0, t=10502 jiffies, g=953, c=952, q=5) All QSes seen, last rcu_sched kthread activity 10502 (4295019375-4295008873), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.5 R running task 28208 7301 7099 0x8000000c Call Trace: sched_show_task kernel/sched/core.c:5168 [inline] sched_show_task.cold+0x2f0/0x351 kernel/sched/core.c:5143 print_other_cpu_stall kernel/rcu/tree.c:1501 [inline] check_cpu_stall kernel/rcu/tree.c:1616 [inline] __rcu_pending kernel/rcu/tree.c:3390 [inline] rcu_pending kernel/rcu/tree.c:3452 [inline] rcu_check_callbacks.cold+0xcb1/0xd0a kernel/rcu/tree.c:2792 update_process_times+0x31/0x70 kernel/time/timer.c:1590 tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:161 tick_sched_timer+0x43/0x130 kernel/time/tick-sched.c:1219 __run_hrtimer kernel/time/hrtimer.c:1223 [inline] __hrtimer_run_queues+0x270/0xbc0 kernel/time/hrtimer.c:1287 hrtimer_interrupt+0x1d8/0x5d0 kernel/time/hrtimer.c:1321 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x11c/0x5e0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:sk_mc_loop+0x0/0x1d0 net/core/sock.c:668 RSP: 0018:ffff8880aec078e8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10 RAX: ffff88809cc1c280 RBX: ffff88808c47ca80 RCX: 1ffff1101398395e RDX: 0000000000000100 RSI: ffff888085609640 RDI: ffff888085609640 RBP: ffff8880aec07a00 R08: ffff88809cc1c280 R09: 0000000000000003 R10: ffff8880aec07a18 R11: ffff88809cc1c280 R12: ffff888085d4ce00 R13: ffff888085d4cec4 R14: ffff888085609640 R15: ffff888097e1f6c0 ip6_finish_output+0x4f4/0xb50 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip6_output+0x20f/0x6d0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:462 [inline] NF_HOOK include/linux/netfilter.h:250 [inline] ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483 ndisc_send_rs+0x12b/0x670 net/ipv6/ndisc.c:677 addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1636 [inline] __run_timers kernel/time/timer.c:1604 [inline] run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649 __do_softirq+0x244/0x9a0 kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x160/0x1b0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:__sanitizer_cov_trace_pc+0x9/0x60 kernel/kcov.c:65 RSP: 0018:ffff88807e8df7b0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: ffff88809cc1c280 RBX: dffffc0000000000 RCX: 1ffff1101398395e RDX: 0000000000000000 RSI: ffffea00023cf900 RDI: ffff88807e8dfa04 RBP: ffff88807e8df8f8 R08: ffff88807e8df9f0 R09: 0000000000000001 R10: 0000000000000000 R11: ffff88809cc1c280 R12: 000000000000000d R13: ffffea00023cf900 R14: 0000000000406000 R15: ffffea00023cf900 unmap_single_vma+0x15d/0x2c0 mm/memory.c:1560 unmap_vmas+0xac/0x170 mm/memory.c:1590 exit_mmap+0x285/0x4e0 mm/mmap.c:3062 __mmput kernel/fork.c:930 [inline] mmput+0x114/0x440 kernel/fork.c:951 exit_mm kernel/exit.c:545 [inline] do_exit+0x6fc/0x2c80 kernel/exit.c:841 do_group_exit+0x111/0x330 kernel/exit.c:951 get_signal+0x381/0x1cd0 kernel/signal.c:2413 do_signal+0x86/0x19a0 arch/x86/kernel/signal.c:814 exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:160 prepare_exit_to_usermode+0x1b5/0x220 arch/x86/entry/common.c:199 retint_user+0x8/0x18 RIP: 0033:0x404278 RSP: 002b:00007f4d5505ac90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000005 RDX: 0000000000001c46 RSI: ffffffffffffffff RDI: 00000000004bfe44 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf50 R13: 00000000004d04f8 R14: 00000000004d8318 R15: 000000000075bf2c rcu_sched kthread starved for 10502 jiffies! g953 c952 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1 rcu_sched R running task 29824 9 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384 schedule+0x92/0x1c0 kernel/sched/core.c:3428 schedule_timeout+0x43e/0xe10 kernel/time/timer.c:1746 rcu_gp_kthread+0xbf4/0x1ec0 kernel/rcu/tree.c:2255 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 INFO: rcu_preempt detected stalls on CPUs/tasks: 1-...: (1 GPs behind) idle=c1a/140000000000002/0 softirq=11209/11210 fqs=5 (detected by 0, t=10548 jiffies, g=1470, c=1469, q=939) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7300 Comm: syz-executor.3 Not tainted 4.14.162-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880967f03c0 task.stack: ffff8880942c8000 RIP: 0010:__lock_release kernel/locking/lockdep.c:3791 [inline] RIP: 0010:lock_release+0x366/0x940 kernel/locking/lockdep.c:4013 RSP: 0018:ffff8880aed07408 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: 1ffff11015da0e87 RCX: 1ffff11012cfe186 RDX: 0000000000000003 RSI: 1ffff11012cfe197 RDI: ffff8880967f0c30 RBP: ffff8880aed074a0 R08: ffff8880967f03c0 R09: 0000000000000004 R10: 0000000000000000 R11: ffff8880967f03c0 R12: a39a4e42d42a1325 R13: ffffffff830eb48c R14: ffffffff89a9acc0 R15: ffff8880aed07478 FS: 00007ff6787c3700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000075c091 CR3: 000000008db84000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:158 [inline] _raw_spin_unlock_irqrestore+0x1f/0xe0 kernel/locking/spinlock.c:192 debug_object_deactivate lib/debugobjects.c:530 [inline] debug_object_deactivate+0x1cc/0x350 lib/debugobjects.c:491 debug_hrtimer_deactivate kernel/time/hrtimer.c:406 [inline] debug_deactivate kernel/time/hrtimer.c:453 [inline] __run_hrtimer kernel/time/hrtimer.c:1193 [inline] __hrtimer_run_queues+0x163/0xbc0 kernel/time/hrtimer.c:1287 hrtimer_interrupt+0x1d8/0x5d0 kernel/time/hrtimer.c:1321 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x11c/0x5e0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:memcmp+0x48/0xc0 lib/string.c:861 RSP: 0018:ffff8880aed07810 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000000 RBX: ffff8880aed078d8 RCX: 0000000000000007 RDX: 0000000000000000 RSI: ffff888080222338 RDI: ffff8880aed078b8 RBP: ffff8880aed07838 R08: 0000000067a9eafe R09: 0000000000000002 R10: 0000000000000000 R11: ffff8880967f03c0 R12: dffffc0000000000 R13: ffff8880aed07918 R14: 000000000000000c R15: ffff888080222300 find_stack lib/stackdepot.c:176 [inline] depot_save_stack+0x11c/0x410 lib/stackdepot.c:225 save_stack+0xa9/0xd0 mm/kasan/kasan.c:453 set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc mm/kasan/kasan.c:551 [inline] kasan_kmalloc+0xce/0xf0 mm/kasan/kasan.c:529 kasan_slab_alloc+0xf/0x20 mm/kasan/kasan.c:489 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc_node mm/slab.c:3333 [inline] kmem_cache_alloc_node+0x131/0x780 mm/slab.c:3640 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] ndisc_alloc_skb+0x13c/0x340 net/ipv6/ndisc.c:402 ndisc_send_rs+0x303/0x670 net/ipv6/ndisc.c:661 addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1636 [inline] __run_timers kernel/time/timer.c:1604 [inline] run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649 __do_softirq+0x244/0x9a0 kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x160/0x1b0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:perf_fasync+0x8a/0xc0 kernel/events/core.c:5518 RSP: 0018:ffff8880942cfdb8 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000001 RBX: ffff88809362e4c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880aa4bdb80 RBP: ffff8880942cfde0 R08: ffff8880967f03c0 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880967f03c0 R12: ffff88808b3ab080 R13: ffff8880aa4bdb80 R14: 0000000000000003 R15: 0000000000000001 setfl fs/fcntl.c:73 [inline] do_fcntl+0x91f/0xe10 fs/fcntl.c:347 SYSC_fcntl fs/fcntl.c:463 [inline] SyS_fcntl+0xd5/0x110 fs/fcntl.c:448 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45af49 RSP: 002b:00007ff6787c2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49 RDX: 0000000000042000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff6787c36d4 R13: 00000000004c1b1d R14: 00000000004d6ab8 R15: 00000000ffffffff Code: ee 03 80 3c 06 00 0f 85 53 05 00 00 49 8d b8 70 08 00 00 4c 8b 21 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 <0f> 85 c4 04 00 00 4d 89 a0 70 08 00 00 83 c2 01 44 89 ce 4c 89 rcu_preempt kthread starved for 448 jiffies! g1470 c1469 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready rcu_preempt R running task 29824 8 2 0x80000000 Call Trace: IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready context_switch kernel/sched/core.c:2808 [inline] __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384 schedule+0x92/0x1c0 kernel/sched/core.c:3428 schedule_timeout+0x43e/0xe10 kernel/time/timer.c:1746 rcu_gp_kthread+0xbf4/0x1ec0 kernel/rcu/tree.c:2255 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404