ip6_tables: ip6tables: counters copy to user failed while replacing table ip6_tables: ip6tables: counters copy to user failed while replacing table INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 0, t=10502 jiffies, g=5534, c=5533, q=602) All QSes seen, last rcu_preempt kthread activity 10498 (4294965504-4294955006), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.1 R running task 28216 13287 6369 0x00000008 Call Trace: sched_show_task.cold+0x333/0x39a kernel/sched/core.c:5169 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+0xd29/0xd99 kernel/rcu/tree.c:2792 update_process_times+0x28/0xa0 kernel/time/timer.c:1591 tick_sched_handle+0x7d/0x150 kernel/time/tick-sched.c:165 tick_sched_timer+0x92/0x200 kernel/time/tick-sched.c:1223 __run_hrtimer kernel/time/hrtimer.c:1223 [inline] __hrtimer_run_queues+0x30b/0xc80 kernel/time/hrtimer.c:1287 hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:__read_once_size_nocheck.constprop.0+0x3/0x10 include/linux/compiler.h:201 RSP: 0018:ffff8880aea07608 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff10 RAX: ffffffff85600efb RBX: 1ffff11015d40ec3 RCX: ffffffff893fd4fa RDX: ffff8880aea07790 RSI: ffff8880aea07638 RDI: ffff88808d78fb30 RBP: ffff88808d78fb30 R08: ffffffff893fd4fe R09: ffffffff893fd4ff R10: 00000000000ee5d9 R11: 0000000000000001 R12: ffff8880aea07748 R13: ffff8880aea07790 R14: ffff88808d788000 R15: ffff8880aea07748 deref_stack_reg arch/x86/kernel/unwind_orc.c:296 [inline] deref_stack_reg+0x124/0x1a0 arch/x86/kernel/unwind_orc.c:290 unwind_next_frame+0xc98/0x17d0 arch/x86/kernel/unwind_orc.c:432 __save_stack_trace+0x90/0x160 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc_trace+0x11b/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] dst_cow_metrics_generic+0x48/0x130 net/core/dst.c:210 ipv6_cow_metrics+0x70/0x180 net/ipv6/route.c:196 dst_metrics_write_ptr include/net/dst.h:146 [inline] dst_metric_set include/net/dst.h:207 [inline] icmp6_dst_alloc+0x3f6/0x580 net/ipv6/route.c:1782 ndisc_send_skb+0xace/0x1390 net/ipv6/ndisc.c:463 ndisc_send_rs+0x125/0x630 net/ipv6/ndisc.c:677 addrconf_rs_timer+0x249/0x550 net/ipv6/addrconf.c:3765 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1280 expire_timers+0x232/0x4d0 kernel/time/timer.c:1319 __run_timers kernel/time/timer.c:1644 [inline] run_timer_softirq+0x1d5/0x5a0 kernel/time/timer.c:1657 __do_softirq+0x254/0xa1d kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x193/0x240 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:read_pnet include/net/net_namespace.h:282 [inline] RIP: 0010:dev_net include/linux/netdevice.h:2020 [inline] RIP: 0010:__ip_dev_find+0x1ca/0x470 net/ipv4/devinet.c:154 RSP: 0018:ffff88808d78f530 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000040000 RBX: dffffc0000000000 RCX: ffffc90007581000 RDX: 1ffff1100d43d260 RSI: ffffffff856a902a RDI: ffff88806a1e9300 RBP: 1ffff11011af1ea7 R08: 0000000000000000 R09: 0000000000020012 R10: ffff888069358ed8 R11: ffff888069358600 R12: 00000000361414ac R13: ffff88806a1e8d80 R14: ffff8880a49a8100 R15: ffff88809282d240 ip_route_output_key_hash_rcu+0x105f/0x2990 net/ipv4/route.c:2402 ip_route_output_key_hash+0x195/0x2a0 net/ipv4/route.c:2338 __ip_route_output_key include/net/route.h:126 [inline] ip_route_output_flow+0x22/0xb0 net/ipv4/route.c:2597 ip_route_newports include/net/route.h:324 [inline] tcp_v4_connect+0x1080/0x1a70 net/ipv4/tcp_ipv4.c:225 __inet_stream_connect+0x6ad/0xb90 net/ipv4/af_inet.c:618 tcp_sendmsg_fastopen net/ipv4/tcp.c:1170 [inline] tcp_sendmsg_locked+0x1fac/0x2ef0 net/ipv4/tcp.c:1216 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457 inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45d5b9 RSP: 002b:00007f15d2ec2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002cc00 RCX: 000000000045d5b9 RDX: 0000000024000804 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007fffe4070dbf R14: 00007f15d2ec39c0 R15: 000000000118cf4c ip6_tables: ip6tables: counters copy to user failed while replacing table ip6_tables: ip6tables: counters copy to user failed while replacing table