INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 0, t=10502 jiffies, g=14003, c=14002, q=249) All QSes seen, last rcu_preempt kthread activity 10107 (4295005829-4294995722), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.3 R running task 26288 24483 7254 0x8000000e 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:165 tick_sched_timer+0x43/0x130 kernel/time/tick-sched.c:1223 __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:icmp_glue_bits+0x1/0x1d0 net/ipv4/icmp.c:354 RSP: 0018:ffff8880aec07718 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: ffffffff8577a2a0 RBX: 0000000000000048 RCX: 0000000000000048 RDX: 0000000000000000 RSI: ffff88809d3fccac RDI: ffff8880aec07b18 RBP: ffff8880aec07868 R08: 0000000000000000 R09: ffff8880901043c0 R10: ffffed1013a7f9ac R11: ffff88809d3fcd63 R12: ffff88809d3fcca4 R13: 0000000000000000 R14: ffff8880901043c0 R15: 0000000000000000 ip_append_data.part.0+0xe7/0x160 net/ipv4/ip_output.c:1178 ip_append_data+0x5b/0x80 net/ipv4/ip_output.c:1167 icmp_push_reply+0x189/0x500 net/ipv4/icmp.c:376 __icmp_send+0x973/0x11f0 net/ipv4/icmp.c:743 ipv4_send_dest_unreach net/ipv4/route.c:1223 [inline] ipv4_link_failure+0x432/0x7c0 net/ipv4/route.c:1230 dst_link_failure include/net/dst.h:445 [inline] arp_error_report+0xae/0x190 net/ipv4/arp.c:297 neigh_invalidate+0x22d/0x540 net/core/neighbour.c:897 neigh_timer_handler+0x847/0xa70 net/core/neighbour.c:983 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:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:192 RSP: 0018:ffff88804b4c7710 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 RAX: 1ffffffff0fe2cc9 RBX: 0000000000000282 RCX: 1ffff1100871cda1 RDX: dffffc0000000000 RSI: ffff8880438e6ce8 RDI: 0000000000000282 RBP: ffff88804b4c7720 R08: ffff8880438e6440 R09: ffff8880438e6d08 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89be37c8 R13: dffffc0000000000 R14: 1ffff11009698eec R15: ffffffff89be37c8 debug_object_active_state lib/debugobjects.c:711 [inline] debug_object_active_state+0x23c/0x370 lib/debugobjects.c:675 debug_rcu_head_queue kernel/rcu/rcu.h:153 [inline] __call_rcu.constprop.0+0x4e/0x820 kernel/rcu/tree.c:3050 kfree_call_rcu+0x15/0x20 kernel/rcu/tree.c:3171 __free_vmap_area+0x242/0x310 mm/vmalloc.c:589 __purge_vmap_area_lazy+0x16b/0x250 mm/vmalloc.c:706 try_purge_vmap_area_lazy mm/vmalloc.c:721 [inline] free_vmap_area_noflush+0xe5/0x120 mm/vmalloc.c:753 free_unmap_vmap_area mm/vmalloc.c:763 [inline] remove_vm_area+0x160/0x1b0 mm/vmalloc.c:1508 __vunmap+0x141/0x320 mm/vmalloc.c:1536 vfree+0x50/0xe0 mm/vmalloc.c:1611 kcov_put kernel/kcov.c:104 [inline] kcov_put+0x18/0x30 kernel/kcov.c:101 kcov_close+0x10/0x20 kernel/kcov.c:188 __fput+0x275/0x7a0 fs/file_table.c:210 ____fput+0x16/0x20 fs/file_table.c:244 task_work_run+0x114/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xa1a/0x2cd0 kernel/exit.c:858 do_group_exit+0x111/0x330 kernel/exit.c:955 get_signal+0x381/0x1cd0 kernel/signal.c:2418 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 arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c449 RSP: 002b:00007f7b72f30c78 EFLAGS: 00000246 ORIG_RAX: 000000000000010a RAX: 0000000000000000 RBX: 00007f7b72f316d4 RCX: 000000000045c449 RDX: 00000000200000c0 RSI: 0000000000000004 RDI: 0000000020000040 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000ba4 R14: 00000000004cd8e6 R15: 000000000076bf2c