Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. 2021/05/03 23:39:22 fuzzer started 2021/05/03 23:39:22 connecting to host at 10.128.0.169:46363 2021/05/03 23:39:22 checking machine... 2021/05/03 23:39:22 checking revisions... 2021/05/03 23:39:22 testing simple program... syzkaller login: [ 74.638675][ T8461] chnl_net:caif_netlink_parms(): no params data found [ 74.705815][ T8461] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.717481][ T8461] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.728304][ T8461] device bridge_slave_0 entered promiscuous mode [ 74.738832][ T8461] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.749069][ T8461] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.758636][ T8461] device bridge_slave_1 entered promiscuous mode [ 74.781129][ T8461] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.795738][ T8461] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.820939][ T8461] team0: Port device team_slave_0 added [ 74.829745][ T8461] team0: Port device team_slave_1 added [ 74.849336][ T8461] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.857750][ T8461] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 74.893898][ T8461] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.908549][ T8461] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.916360][ T8461] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 74.944165][ T8461] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.983374][ T8461] device hsr_slave_0 entered promiscuous mode [ 74.990635][ T8461] device hsr_slave_1 entered promiscuous mode [ 75.106139][ T8461] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.120898][ T8461] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.136033][ T8461] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.147741][ T8461] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.195106][ T8461] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.202791][ T8461] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.211026][ T8461] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.218376][ T8461] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.290486][ T8461] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.310638][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.325188][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.335074][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.345039][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.360318][ T8461] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.373439][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.384220][ T27] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.391405][ T27] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.406913][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.416863][ T8680] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.424288][ T8680] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.445994][ T3144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.458020][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.469782][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.488098][ T8461] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.502715][ T8461] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.517604][ T3144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.527936][ T3144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.551788][ T8461] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.564402][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.573858][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.581660][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.604005][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.622975][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.631547][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.645114][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.655404][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.665563][ T8461] device veth0_vlan entered promiscuous mode [ 75.679269][ T8461] device veth1_vlan entered promiscuous mode [ 75.701916][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.712772][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.720856][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.730828][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.742404][ T8461] device veth0_macvtap entered promiscuous mode [ 75.760665][ T8461] device veth1_macvtap entered promiscuous mode [ 75.779889][ T8461] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.788025][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.797732][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.806579][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.815543][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.827765][ T8461] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.837128][ T3144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.846309][ T3144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 75.858286][ T8461] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.868880][ T8461] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.878256][ T8461] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.890660][ T8461] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.996237][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.021604][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.039583][ T115] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.045685][ T3144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.050659][ T115] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.065616][ T3144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/03 23:39:25 building call list... [ 76.739696][ T178] ------------[ cut here ]------------ [ 76.748023][ T178] hook not found, pf 3 num 0 [ 76.748685][ T178] WARNING: CPU: 0 PID: 178 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 76.768655][ T178] Modules linked in: [ 76.782900][ T178] CPU: 0 PID: 178 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 76.797110][ T178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.809388][ T178] Workqueue: netns cleanup_net [ 76.816692][ T178] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.826239][ T178] Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 11 04 00 00 8b 53 1c 89 ee 48 c7 c7 c0 78 6d 8a e8 80 5a 8a 01 <0f> 0b e9 e5 00 00 00 e8 99 46 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 76.849135][ T178] RSP: 0018:ffffc9000131fbc0 EFLAGS: 00010286 [ 76.857581][ T178] RAX: 0000000000000000 RBX: ffff8881475bdd00 RCX: 0000000000000000 [ 76.868053][ T178] RDX: ffff8880122d0000 RSI: ffffffff815c8ba5 RDI: fffff52000263f6a [ 76.877346][ T178] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.887835][ T178] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880361c0f20 [ 76.897810][ T178] R13: 0000000000000000 R14: ffff888013907480 R15: 0000000000000001 [ 76.908483][ T178] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 76.919445][ T178] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.929329][ T178] CR2: 00007fa9ffc9f000 CR3: 0000000012fb3000 CR4: 00000000001506f0 [ 76.941348][ T178] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.953569][ T178] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.961754][ T178] Call Trace: [ 76.968374][ T178] nf_unregister_net_hooks+0x117/0x160 [ 76.975735][ T178] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.981848][ T178] ? arptable_filter_net_exit+0x20/0x20 [ 76.990760][ T178] cleanup_net+0x451/0xb10 [ 76.997036][ T178] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.005219][ T178] process_one_work+0x98d/0x1600 [ 77.010212][ T178] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.026080][ T178] ? rwlock_bug.part.0+0x90/0x90 [ 77.031083][ T178] ? _raw_spin_lock_irq+0x41/0x50 [ 77.037919][ T178] worker_thread+0x64c/0x1120 [ 77.045165][ T178] ? __kthread_parkme+0x13f/0x1e0 [ 77.050235][ T178] ? process_one_work+0x1600/0x1600 [ 77.057038][ T178] kthread+0x3b1/0x4a0 [ 77.061324][ T178] ? __kthread_bind_mask+0xc0/0xc0 [ 77.069816][ T178] ret_from_fork+0x1f/0x30 [ 77.075819][ T178] Kernel panic - not syncing: panic_on_warn set ... [ 77.082524][ T178] CPU: 0 PID: 178 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 77.091238][ T178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.101417][ T178] Workqueue: netns cleanup_net [ 77.106325][ T178] Call Trace: [ 77.109613][ T178] dump_stack+0x141/0x1d7 [ 77.114143][ T178] panic+0x306/0x73d [ 77.118073][ T178] ? __warn_printk+0xf3/0xf3 [ 77.122776][ T178] ? __warn.cold+0x1a/0x44 [ 77.127213][ T178] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.133035][ T178] __warn.cold+0x35/0x44 [ 77.137391][ T178] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.143213][ T178] report_bug+0x1bd/0x210 [ 77.147566][ T178] handle_bug+0x3c/0x60 [ 77.152000][ T178] exc_invalid_op+0x14/0x40 [ 77.156541][ T178] asm_exc_invalid_op+0x12/0x20 [ 77.161402][ T178] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.167829][ T178] Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 11 04 00 00 8b 53 1c 89 ee 48 c7 c7 c0 78 6d 8a e8 80 5a 8a 01 <0f> 0b e9 e5 00 00 00 e8 99 46 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.187941][ T178] RSP: 0018:ffffc9000131fbc0 EFLAGS: 00010286 [ 77.194056][ T178] RAX: 0000000000000000 RBX: ffff8881475bdd00 RCX: 0000000000000000 [ 77.202125][ T178] RDX: ffff8880122d0000 RSI: ffffffff815c8ba5 RDI: fffff52000263f6a [ 77.210281][ T178] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.218436][ T178] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880361c0f20 [ 77.226600][ T178] R13: 0000000000000000 R14: ffff888013907480 R15: 0000000000000001 [ 77.234697][ T178] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.240034][ T178] ? vprintk+0x95/0x260 [ 77.244293][ T178] nf_unregister_net_hooks+0x117/0x160 [ 77.249903][ T178] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.255951][ T178] ? arptable_filter_net_exit+0x20/0x20 [ 77.261799][ T178] cleanup_net+0x451/0xb10 [ 77.266451][ T178] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.271959][ T178] process_one_work+0x98d/0x1600 [ 77.276953][ T178] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.282453][ T178] ? rwlock_bug.part.0+0x90/0x90 [ 77.287423][ T178] ? _raw_spin_lock_irq+0x41/0x50 [ 77.292604][ T178] worker_thread+0x64c/0x1120 [ 77.297419][ T178] ? __kthread_parkme+0x13f/0x1e0 [ 77.302466][ T178] ? process_one_work+0x1600/0x1600 [ 77.307899][ T178] kthread+0x3b1/0x4a0 [ 77.312112][ T178] ? __kthread_bind_mask+0xc0/0xc0 [ 77.317340][ T178] ret_from_fork+0x1f/0x30 [ 77.323434][ T178] Kernel Offset: disabled [ 77.328295][ T178] Rebooting in 86400 seconds..