bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P11484 rcu: (detected by 1, t=10502 jiffies, g=36073, q=2947 ncpus=2) task:syz.2.1252 state:R running task stack:24160 pid:11484 tgid:11484 ppid:5818 task_flags:0x40044c flags:0x0000400e Call Trace: sched_show_task+0x509/0x720 kernel/sched/core.c:7720 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:234 [inline] print_other_cpu_stall+0x120d/0x15c0 kernel/rcu/tree_stall.h:623 check_cpu_stall kernel/rcu/tree_stall.h:795 [inline] rcu_pending kernel/rcu/tree.c:3597 [inline] rcu_sched_clock_irq+0xa26/0x10e0 kernel/rcu/tree.c:2647 update_process_times+0x242/0x2f0 kernel/time/timer.c:2515 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x37c/0x500 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1801 [inline] __hrtimer_run_queues+0x551/0xd30 kernel/time/hrtimer.c:1865 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1927 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:memset_orig+0x75/0xb0 arch/x86/lib/memset_64.S:90 Code: 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 0f 1f 84 00 00 00 00 00 89 d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 48 89 07 <48> 8d 7f 08 75 f5 83 e2 07 74 0a ff ca 88 07 48 8d 7f 01 75 f6 4c RSP: 0000:ffffc90000a17898 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffffffff8a981254 RCX: 0000000000000003 RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90000a17948 RBP: ffffc90000a179f8 R08: ffffc90000a17967 R09: 0000000000000000 R10: ffffc90000a17940 R11: fffff52000142f2d R12: 00000000000000f0 R13: ffff88808759ca00 R14: 0000000000000000 R15: 0000000000000000 __debug_check_no_obj_freed lib/debugobjects.c:1073 [inline] debug_check_no_obj_freed+0xb1/0x580 lib/debugobjects.c:1129 slab_free_hook mm/slub.c:2284 [inline] slab_free mm/slub.c:4609 [inline] kmem_cache_free+0x114/0x410 mm/slub.c:4711 kfree_skb_reason include/linux/skbuff.h:1271 [inline] kfree_skb include/linux/skbuff.h:1280 [inline] ip6_mc_input+0x974/0xb70 net/ipv6/ip6_input.c:591 ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:993 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5941 netif_receive_skb_internal net/core/dev.c:6027 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:6086 NF_HOOK+0x9e/0x400 include/linux/netfilter.h:314 br_handle_frame_finish+0x1905/0x2000 br_nf_hook_thresh+0x472/0x590 br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0 NF_HOOK include/linux/netfilter.h:314 [inline] br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_bridge_pre net/bridge/br_input.c:282 [inline] br_handle_frame+0x9f3/0x1530 net/bridge/br_input.c:433 __netif_receive_skb_core+0x13e7/0x4540 net/core/dev.c:5722 __netif_receive_skb_one_core net/core/dev.c:5826 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5941 process_backlog+0x662/0x15b0 net/core/dev.c:6289 __napi_poll+0xcb/0x490 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:7297 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5252 Code: c9 50 e8 b9 29 0c 00 48 83 c4 08 4c 89 f7 e8 fd 39 00 00 e9 de 04 00 00 4c 89 f7 e8 70 b0 72 0a e8 4b 04 39 00 fb 48 8b 5d c0 <48> 8d bb 08 16 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc RSP: 0000:ffffc9000427eee8 EFLAGS: 00000282 RAX: 6c84ba7a4282f200 RBX: ffff8880645a9e00 RCX: ffffffff819d25fa RDX: dffffc0000000000 RSI: ffffffff8c2aa440 RDI: ffffffff8c801940 RBP: ffffc9000427ef30 R08: ffffffff94511877 R09: 1ffffffff28a230e R10: dffffc0000000000 R11: fffffbfff28a230f R12: 1ffff110170e7ebe R13: dffffc0000000000 R14: ffff8880b863e7c0 R15: ffff8880b873f5f0 context_switch kernel/sched/core.c:5381 [inline] __schedule+0x18c4/0x4c40 kernel/sched/core.c:6765 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6944 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6968 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1761 [inline] zap_pmd_range mm/memory.c:1823 [inline] zap_pud_range mm/memory.c:1852 [inline] zap_p4d_range mm/memory.c:1873 [inline] unmap_page_range+0x3d66/0x48e0 mm/memory.c:1894 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1984 exit_mmap+0x283/0xd40 mm/mmap.c:1284 __mmput+0x115/0x410 kernel/fork.c:1356 exit_mm+0x220/0x310 kernel/exit.c:570 do_exit+0x9ad/0x28e0 kernel/exit.c:925 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 get_signal+0x168c/0x1720 kernel/signal.c:3036 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f503038cde9 Code: Unable to access opcode bytes at 0x7f503038cdbf. RSP: 002b:00007ffe224f80c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000000 RBX: 00000000000a5e9a RCX: 00007f503038cde9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f50305a608c RBP: 0000000000000032 R08: 7fffffffffffffff R09: 0000000d224f83bf R10: 00007ffe224f81c0 R11: 0000000000000246 R12: 00007f50305a608c R13: 00007ffe224f81c0 R14: 00000000000a5ecc R15: 00007ffe224f81e0 net_ratelimit: 33408 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) net_ratelimit: 42778 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:5c:7a:a1:ef:b0, vlan:0)