bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:12356] Modules linked in: irq event stamp: 3084423 hardirqs last enabled at (3084422): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3084423): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3076460): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3076463): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3076463): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 12356 Comm: syz-executor.0 Not tainted 4.19.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:261 [inline] RIP: 0010:find_rr_leaf net/ipv6/route.c:713 [inline] RIP: 0010:rt6_select net/ipv6/route.c:769 [inline] RIP: 0010:fib6_table_lookup+0x4da/0xf40 net/ipv6/route.c:1876 Code: 24 0c 48 8d 8c 24 c8 00 00 00 48 89 df e8 9e 1d ff ff 49 89 c4 e8 86 09 5b fa 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 38 00 <0f> 85 01 09 00 00 48 8b 5b 08 e8 27 28 49 fa 31 ff 89 c5 89 c6 e8 RSP: 0018:ffff8880ba0076f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff11016900109 RBX: ffff8880b4800840 RCX: ffffffff8706737e RDX: 0000000000000100 RSI: ffffffff870753da RDI: ffff8880b4800848 RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000fffffffd R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b4800c00 R13: 0000000000000100 R14: 000000000000001d R15: dffffc0000000000 FS: 00007f5410b78700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb46cc33b8 CR3: 0000000009e6d000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_pol_route+0x180/0x1270 net/ipv6/route.c:1909 fib6_rule_lookup+0x10b/0x4e0 net/ipv6/fib6_rules.c:118 ip6_route_input_lookup net/ipv6/route.c:1990 [inline] ip6_route_input+0x709/0xa40 net/ipv6/route.c:2125 ip6_rcv_finish_core.constprop.0.isra.0+0xd7/0x550 net/ipv6/ip6_input.c:63 ip6_rcv_finish+0x176/0x2f0 net/ipv6/ip6_input.c:74 NF_HOOK include/linux/netfilter.h:289 [inline] ipv6_rcv+0xf2/0x3f0 net/ipv6/ip6_input.c:273 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066 process_backlog+0x241/0x700 net/core/dev.c:5848 napi_poll net/core/dev.c:6272 [inline] net_rx_action+0x4ac/0xfb0 net/core/dev.c:6338 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:535 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unlock_page_memcg+0xb/0x30 mm/memcontrol.c:1963 Code: ff ff e8 48 9e f9 ff e9 3e ff ff ff e8 3e 9e f9 ff eb c1 66 66 2e 0f 1f 84 00 00 00 00 00 90 48 b8 00 00 00 00 00 fc ff df 53 <48> 89 fb 48 83 c7 38 48 89 fa 48 c1 ea 03 80 3c 02 00 75 0a 48 8b RSP: 0018:ffff88803cc97730 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff818f6cc5 RDX: 0000000000000000 RSI: ffffffff818f6c8a RDI: ffffea000268b2c0 RBP: ffffea000268b2c0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dead000000000100 R15: 00007f541260b000 page_remove_rmap+0xe5/0x120 mm/rmap.c:1300 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1452 [inline] zap_pud_range mm/memory.c:1481 [inline] zap_p4d_range mm/memory.c:1502 [inline] unmap_page_range+0x12f6/0x2a70 mm/memory.c:1523 unmap_single_vma+0x198/0x300 mm/memory.c:1568 unmap_vmas+0xa9/0x180 mm/memory.c:1598 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x466459 Code: Bad RIP value. RSP: 002b:00007f5410b78188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffe0 RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bf9fb R08: 00080000fffffffc R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffc6291755f R14: 00007f5410b78300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:100 Code: e8 61 c1 35 00 e9 ab fe ff ff 4c 89 ef e8 54 c1 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 80 df 01 00 65 8b 15 9c 81 9f 7e 81 e2 00 01 1f 00 RSP: 0018:ffff8880b5ad7128 EFLAGS: 00000286 RAX: ffffffff86cb0730 RBX: ffff8880b5ad71e8 RCX: ffffffff86a1073c RDX: ffff8880b5ad71e8 RSI: ffffffff86cb0742 RDI: 0000000000000000 RBP: 0000000000000004 R08: 0000000000000001 R09: 0000000000000005 R10: 0000000000000004 R11: 0000000000000000 R12: ffff8880a5bb2bc0 R13: ffff8880a5bb2bc0 R14: ffff8880b5ad71e8 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff60bb99000 CR3: 00000000abf3b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_vs_reply6+0x12/0xc0 net/netfilter/ipvs/ip_vs_core.c:1501 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xc5/0x1e0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:244 [inline] NF_HOOK include/linux/netfilter.h:287 [inline] br_nf_forward_ip+0xc72/0x15e0 net/bridge/br_netfilter_hooks.c:620 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xc5/0x1e0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:244 [inline] NF_HOOK include/linux/netfilter.h:287 [inline] __br_forward+0x354/0xae0 net/bridge/br_forward.c:113 deliver_clone net/bridge/br_forward.c:129 [inline] maybe_deliver+0x292/0x380 net/bridge/br_forward.c:184 br_flood+0x158/0x4d0 net/bridge/br_forward.c:226 br_handle_frame_finish+0xf41/0x1410 net/bridge/br_input.c:167 br_nf_hook_thresh+0x2a3/0x330 net/bridge/br_netfilter_hooks.c:1014 br_nf_pre_routing_finish_ipv6+0x6e3/0xd40 net/bridge/br_netfilter_ipv6.c:210 NF_HOOK include/linux/netfilter.h:289 [inline] br_nf_pre_routing_ipv6+0x3f4/0x860 net/bridge/br_netfilter_ipv6.c:240 br_nf_pre_routing+0xf05/0x1500 net/bridge/br_netfilter_hooks.c:494 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xc5/0x1e0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:244 [inline] NF_HOOK include/linux/netfilter.h:287 [inline] br_handle_frame+0xa60/0x13b0 net/bridge/br_input.c:306 __netif_receive_skb_core+0x929/0x3270 net/core/dev.c:4876 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:4952 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066 process_backlog+0x241/0x700 net/core/dev.c:5848 napi_poll net/core/dev.c:6272 [inline] net_rx_action+0x4ac/0xfb0 net/core/dev.c:6338 __do_softirq+0x265/0x980 kernel/softirq.c:292 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415