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 veth0_to_bridge with own address as source address (addr:be:37:11:e5:5f:0a, vlan:0) watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.3:11201] Modules linked in: irq event stamp: 4136199 hardirqs last enabled at (4136198): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (4136199): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (4075464): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (4075467): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (4075467): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 11201 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:validate_xmit_skb+0x740/0xd50 net/core/dev.c:3342 Code: 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 06 0f 8e 0d 05 00 00 0f b6 9d 90 00 00 00 bf 60 00 00 00 83 e3 60 89 de e8 a0 36 ec fa <80> fb 60 0f 84 86 03 00 00 e8 62 35 ec fa 4c 89 e6 4c 89 ea 48 89 RSP: 0018:ffff8880ba107188 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000301 RBX: 0000000000000000 RCX: ffffffff86765000 RDX: 0000000000000000 RSI: ffff88808fa660c0 RDI: 0000000000000001 RBP: ffff8880aec355c0 R08: 0000000000000000 R09: 0000000000000060 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000006200 R13: ffff8880ba107278 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f6b51766700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7a116cb000 CR3: 000000009866f000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __dev_queue_xmit+0x963/0x2e00 net/core/dev.c:3830 br_dev_queue_push_xmit+0x25a/0x6c0 net/bridge/br_forward.c:56 NF_HOOK include/linux/netfilter.h:289 [inline] br_forward_finish+0xb5/0x3d0 net/bridge/br_forward.c:69 br_nf_hook_thresh+0x2a3/0x330 net/bridge/br_netfilter_hooks.c:1014 br_nf_forward_finish+0x335/0x6d0 net/bridge/br_netfilter_hooks.c:553 NF_HOOK include/linux/netfilter.h:289 [inline] br_nf_forward_arp+0x84d/0xc90 net/bridge/br_netfilter_hooks.c:658 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+0x6c7/0x1410 net/bridge/br_input.c:167 NF_HOOK include/linux/netfilter.h:289 [inline] br_handle_frame+0x814/0x13b0 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:5849 napi_poll net/core/dev.c:6280 [inline] net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346 __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:536 [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:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101 Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13 RSP: 0018:ffff88809dbcf738 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff88808fa660c0 RBX: 0000000000000000 RCX: ffffffff81903369 RDX: 0000000000000000 RSI: ffffffff81903377 RDI: 0000000000000007 RBP: ffffea00028518c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: ffffea00028518c0 R13: 0000000000000000 R14: dead000000000100 R15: 00007f6b526b7000 PageAnon include/linux/page-flags.h:419 [inline] page_remove_rmap+0x57/0x120 mm/rmap.c:1296 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 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: 0033:0x7f6b531f40c9 Code: Bad RIP value. RSP: 002b:00007f6b51766168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffea RBX: 00007f6b53313f80 RCX: 00007f6b531f40c9 RDX: 0000000020000080 RSI: 0000000020000140 RDI: 0000000000000000 RBP: 00007f6b5324fae9 R08: 00000000200000c0 R09: 0000000000000000 R10: 0000000000050008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd12bb6c8f R14: 00007f6b51766300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11217 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:97 Code: ff 48 89 df e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 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 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 RSP: 0018:ffff8880ba006fe8 EFLAGS: 00000046 RAX: 0000000000010101 RBX: 0000000000000000 RCX: ffffffff81549362 RDX: 0000000000000000 RSI: ffff8880a18a0240 RDI: 0000000000000001 RBP: fffffbfff13e3050 R08: ffffffff8cd54e80 R09: 0000000000000000 R10: 0000000000000001 R11: ffffffff8c66501b R12: dffffc0000000000 R13: 1ffffffff13e3052 R14: 0000000000010674 R15: ffff8880ba024d40 FS: 00007f5ad99ee700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3856e12718 CR3: 000000009f886000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: raw_read_seqcount_begin include/linux/seqlock.h:149 [inline] read_seqcount_begin include/linux/seqlock.h:165 [inline] ktime_get+0x15f/0x2f0 kernel/time/timekeeping.c:756 hrtimer_forward_now include/linux/hrtimer.h:479 [inline] perf_swevent_hrtimer+0x318/0x3e0 kernel/events/core.c:9266 __run_hrtimer kernel/time/hrtimer.c:1465 [inline] __hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1527 hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1585 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__sanitizer_cov_trace_switch+0x1e/0x80 kernel/kcov.c:207 Code: 66 66 2e 0f 1f 84 00 00 00 00 00 90 41 55 48 89 fa 41 54 55 48 89 f5 53 48 8b 46 08 48 83 f8 20 74 5c 77 3f 48 83 f8 08 74 4c <48> 83 f8 10 75 2c 41 bc 03 00 00 00 4c 8b 6d 00 31 db 4d 85 ed 74 RSP: 0018:ffff8880ba007598 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000010 RBX: 1ffff11017400ebd RCX: 0000000000000001 RDX: 000000000000dd86 RSI: ffffffff895bb100 RDI: 000000000000dd86 RBP: ffffffff895bb100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000dd86 R14: ffff88809b55a080 R15: 0000000000000001 br_multicast_querier_exists net/bridge/br_private.h:717 [inline] br_handle_frame_finish+0xc19/0x1410 net/bridge/br_input.c:138 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:5849 napi_poll net/core/dev.c:6280 [inline] net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346 __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:536 [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:compound_head include/linux/page-flags.h:144 [inline] RIP: 0010:PageSwapBacked include/linux/page-flags.h:295 [inline] RIP: 0010:mm_counter_file include/linux/mm.h:1642 [inline] RIP: 0010:mm_counter include/linux/mm.h:1651 [inline] RIP: 0010:zap_pte_range mm/memory.c:1349 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1463 [inline] RIP: 0010:zap_pud_range mm/memory.c:1492 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1513 [inline] RIP: 0010:unmap_page_range+0x136f/0x2c50 mm/memory.c:1534 Code: 3c 32 00 0f 85 02 16 00 00 48 8b 5b 18 31 ff 83 e3 01 89 de e8 42 e7 d6 ff 84 db 0f 85 03 07 00 00 e8 05 e6 d6 ff 4d 8b 65 08 <31> ff 4c 89 eb 4c 89 e2 83 e2 01 48 89 d6 48 89 94 24 c0 00 00 00 RSP: 0018:ffff88809b9ef770 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880a18a0240 RBX: 0000000000000000 RCX: ffffffff818b9f5e RDX: 0000000000000000 RSI: ffffffff818b9f6b RDI: 0000000000000001 RBP: ffffea0002992dc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: dead000000000100 R13: ffffea0002992dc0 R14: dffffc0000000000 R15: 00007f5adaac6000 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 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: 0033:0x7f5adb47d5fa Code: Bad RIP value. RSP: 002b:00007f5ad99edf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: fffffffffffffffc RBX: 0000000000000bf0 RCX: 00007f5adb47d5fa RDX: 0000000020000c00 RSI: 0000000020000040 RDI: 00007f5ad99edfe0 RBP: 00007f5ad99ee020 R08: 00007f5ad99ee020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000c00 R13: 0000000020000040 R14: 00007f5ad99edfe0 R15: 00000000200001c0