[ 466.947395] netlink: 'syz-executor.0': attribute type 1 has an invalid length. [ 466.991554] netlink: 'syz-executor.5': attribute type 1 has an invalid length. [ 467.032544] netlink: 'syz-executor.1': attribute type 1 has an invalid length. [ 467.256520] net_ratelimit: 245 callbacks suppressed [ 467.256525] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 467.349352] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 467.365370] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 467.389412] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 467.421071] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 467.439586] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 468.116241] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 468.123090] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 468.131539] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 468.138315] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 468.148095] device bridge_slave_1 left promiscuous mode [ 468.154357] bridge0: port 2(bridge_slave_1) entered disabled state [ 468.196718] device bridge_slave_0 left promiscuous mode [ 468.202413] bridge0: port 1(bridge_slave_0) entered disabled state [ 468.281110] device veth1_macvtap left promiscuous mode [ 468.287166] device veth0_macvtap left promiscuous mode [ 468.292500] device veth1_vlan left promiscuous mode [ 468.300231] device veth0_vlan left promiscuous mode [ 468.318913] list_del corruption. prev->next should be ffff888089392bd0, but was ffff88808e59cb90 [ 468.328064] ------------[ cut here ]------------ [ 468.332833] kernel BUG at lib/list_debug.c:53! [ 468.337549] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 468.342910] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.20.0-rc4-syzkaller #0 [ 468.350684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 468.360092] Workqueue: netns cleanup_net [ 468.364273] RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4a [ 468.370159] Code: 56 87 87 e8 3d ec 1a fe 0f 0b 48 89 de 48 c7 c7 80 57 87 87 e8 2c ec 1a fe 0f 0b 48 89 de 48 c7 c7 20 57 87 87 e8 1b ec 1a fe <0f> 0b 48 89 d9 48 c7 c7 e0 57 87 87 e8 0a ec 1a fe 0f 0b 48 89 f1 [ 468.389249] RSP: 0018:ffff8880aa21f490 EFLAGS: 00010286 [ 468.394617] RAX: 0000000000000054 RBX: ffff888089392bd0 RCX: 0000000000000000 [ 468.401876] RDX: 0000000000000000 RSI: ffffffff87875520 RDI: ffffffff8a351ca0 [ 468.409484] RBP: ffff8880aa21f4a8 R08: ffffed1015d05021 R09: ffffed1015d05020 [ 468.416831] R10: ffffed1015d05020 R11: ffff8880ae828107 R12: ffff88808e612750 [ 468.424674] R13: ffff888096fd8750 R14: ffff888089392940 R15: dffffc0000000000 [ 468.431937] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 468.440159] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 468.446032] CR2: ffffffffff600400 CR3: 00000000a8075000 CR4: 00000000001406f0 [ 468.453435] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 468.461654] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 468.470091] Call Trace: [ 468.472717] neigh_mark_dead+0x86/0x210 [ 468.476741] neigh_flush_dev+0x232/0x620 [ 468.480794] ? __neigh_ifdown+0x37/0x310 [ 468.484842] __neigh_ifdown+0x46/0x310 [ 468.488928] ? rt6_disable_ip+0x3dd/0x4b0 [ 468.493313] neigh_ifdown+0xb/0x10 [ 468.496971] rt6_disable_ip+0x3f5/0x4b0 [ 468.501009] addrconf_ifdown+0x7a/0xf60 [ 468.505170] addrconf_notify+0x531/0x1fa0 [ 468.509351] ? __might_sleep+0x95/0x190 [ 468.513393] ? kasan_check_read+0x11/0x20 [ 468.517671] ? tls_device_gc_task+0x650/0x650 [ 468.522170] ? inet6_ifinfo_notify+0x100/0x100 [ 468.526805] ? mutex_unlock+0xd/0x10 [ 468.530541] notifier_call_chain+0x8a/0x160 [ 468.534860] ? notifier_call_chain+0x8a/0x160 [ 468.539336] raw_notifier_call_chain+0x11/0x20 [ 468.543963] call_netdevice_notifiers_info+0x28/0x60 [ 468.549079] dev_close_many+0x2c6/0x640 [ 468.553126] ? lock_downgrade+0x7f0/0x7f0 [ 468.557284] ? dev_fill_metadata_dst+0x5b0/0x5b0 [ 468.562385] rollback_registered_many+0x36d/0xcf0 [ 468.567275] ? kernfs_put+0x2d4/0x540 [ 468.571080] ? generic_xdp_install+0x3d0/0x3d0 [ 468.575653] ? kasan_check_write+0x14/0x20 [ 468.579882] ? kernfs_put+0x2e6/0x540 [ 468.584808] ? unregister_netdevice_queue+0xf3/0x240 [ 468.589907] unregister_netdevice_many+0x3e/0x1f0 [ 468.594756] default_device_exit_batch+0x2e4/0x3d0 [ 468.599678] ? unregister_netdevice_many+0x1f0/0x1f0 [ 468.604769] ? rtnl_unlock+0x9/0x10 [ 468.609188] ? default_device_exit+0x1ac/0x230 [ 468.613780] ? do_wait_intr_irq+0x310/0x310 [ 468.618107] ops_exit_list.isra.5+0xd3/0x120 [ 468.623409] cleanup_net+0x363/0x840 [ 468.627116] ? net_drop_ns+0x60/0x60 [ 468.630912] ? __lock_is_held+0xb5/0x140 [ 468.635061] ? rcu_lockdep_current_cpu_online+0xe5/0x130 [ 468.640648] process_one_work+0x830/0x1670 [ 468.644889] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 468.650518] ? lock_acquire+0x173/0x3d0 [ 468.654495] worker_thread+0x85/0xb60 [ 468.658277] ? __kthread_parkme+0x47/0x190 [ 468.662609] kthread+0x324/0x3e0 [ 468.665969] ? process_one_work+0x1670/0x1670 [ 468.670465] ? kthread_cancel_delayed_work_sync+0x10/0x10 [ 468.676059] ret_from_fork+0x24/0x30 [ 468.679767] Modules linked in: [ 468.683055] ---[ end trace 86440e027f74ea15 ]--- [ 468.687837] RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4a [ 468.693715] Code: 56 87 87 e8 3d ec 1a fe 0f 0b 48 89 de 48 c7 c7 80 57 87 87 e8 2c ec 1a fe 0f 0b 48 89 de 48 c7 c7 20 57 87 87 e8 1b ec 1a fe <0f> 0b 48 89 d9 48 c7 c7 e0 57 87 87 e8 0a ec 1a fe 0f 0b 48 89 f1 [ 468.712976] RSP: 0018:ffff8880aa21f490 EFLAGS: 00010286 [ 468.718484] RAX: 0000000000000054 RBX: ffff888089392bd0 RCX: 0000000000000000 [ 468.725797] RDX: 0000000000000000 RSI: ffffffff87875520 RDI: ffffffff8a351ca0 [ 468.733082] RBP: ffff8880aa21f4a8 R08: ffffed1015d05021 R09: ffffed1015d05020 [ 468.740483] R10: ffffed1015d05020 R11: ffff8880ae828107 R12: ffff88808e612750 [ 468.747937] R13: ffff888096fd8750 R14: ffff888089392940 R15: dffffc0000000000 [ 468.755365] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 468.763590] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 468.769522] CR2: ffffffffff600400 CR3: 00000000a8075000 CR4: 00000000001406f0 [ 468.776811] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 468.784113] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 468.791398] Kernel panic - not syncing: Fatal exception in interrupt [ 468.799531] Kernel Offset: disabled [ 468.803167] Rebooting in 86400 seconds..