Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.5' (ECDSA) to the list of known hosts. 2021/05/05 18:44:49 fuzzer started 2021/05/05 18:44:50 connecting to host at 10.128.0.169:34943 2021/05/05 18:44:50 checking machine... 2021/05/05 18:44:50 checking revisions... 2021/05/05 18:44:50 testing simple program... syzkaller login: [ 74.559717][ T8436] chnl_net:caif_netlink_parms(): no params data found [ 74.610286][ T8436] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.618068][ T8436] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.626437][ T8436] device bridge_slave_0 entered promiscuous mode [ 74.635495][ T8436] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.643647][ T8436] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.653228][ T8436] device bridge_slave_1 entered promiscuous mode [ 74.672574][ T8436] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.683609][ T8436] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.707376][ T8436] team0: Port device team_slave_0 added [ 74.715324][ T8436] team0: Port device team_slave_1 added [ 74.733538][ T8436] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.740551][ T8436] 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. [ 74.766517][ T8436] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.780057][ T8436] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.787120][ T8436] 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. [ 74.815547][ T8436] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.843440][ T8436] device hsr_slave_0 entered promiscuous mode [ 74.850409][ T8436] device hsr_slave_1 entered promiscuous mode [ 74.956018][ T8436] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.966509][ T8436] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.977415][ T8436] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.988466][ T8436] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.013513][ T8436] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.020836][ T8436] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.028657][ T8436] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.035785][ T8436] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.083829][ T8436] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.096829][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.108983][ T4230] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.117513][ T4230] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.126406][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.141259][ T8436] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.153645][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.162489][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.169669][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.191417][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.200772][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.207928][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.216982][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.236706][ T8436] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.247897][ T8436] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.263508][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.271725][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.280754][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.290247][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.301659][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.319756][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.327214][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.338044][ T8436] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.358557][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.382594][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.391306][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.399909][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.409180][ T8436] device veth0_vlan entered promiscuous mode [ 75.422732][ T8436] device veth1_vlan entered promiscuous mode [ 75.446799][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.455183][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.464397][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.476719][ T8436] device veth0_macvtap entered promiscuous mode [ 75.487469][ T8436] device veth1_macvtap entered promiscuous mode [ 75.505791][ T8436] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.514391][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.524795][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.538295][ T8436] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.546528][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.556025][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.569373][ T8436] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.578317][ T8436] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.587569][ T8436] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.597100][ T8436] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.700534][ T272] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.709097][ T272] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 75.743205][ T8658] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.743921][ T163] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.762283][ T163] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.773699][ T8658] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/05 18:44:53 building call list... [ 76.431731][ T272] ------------[ cut here ]------------ [ 76.437552][ T272] hook not found, pf 3 num 0 [ 76.438410][ T272] WARNING: CPU: 1 PID: 272 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 76.453862][ T272] Modules linked in: [ 76.457834][ T272] CPU: 1 PID: 272 Comm: kworker/u4:7 Not tainted 5.12.0-syzkaller #0 [ 76.468647][ T272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.481683][ T272] Workqueue: netns cleanup_net [ 76.486583][ T272] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.494034][ T272] 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 d8 6d 8a e8 70 4b 8a 01 <0f> 0b e9 e5 00 00 00 e8 89 17 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 76.514431][ T272] RSP: 0018:ffffc90001bdfbc0 EFLAGS: 00010286 [ 76.521272][ T272] RAX: 0000000000000000 RBX: ffff8880243ba500 RCX: 0000000000000000 [ 76.530113][ T272] RDX: ffff888014beb880 RSI: ffffffff815c8ba5 RDI: fffff5200037bf6a [ 76.538290][ T272] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.549732][ T272] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888038d48f20 [ 76.557847][ T272] R13: 0000000000000000 R14: ffff888023c35d80 R15: 0000000000000001 [ 76.567193][ T272] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 76.576795][ T272] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.583973][ T272] CR2: 000000c000800000 CR3: 0000000020b65000 CR4: 00000000001506e0 [ 76.593932][ T272] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.602588][ T272] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.612590][ T272] Call Trace: [ 76.615943][ T272] nf_unregister_net_hooks+0x117/0x160 [ 76.622696][ T272] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.628697][ T272] ? arptable_filter_net_exit+0x20/0x20 [ 76.634869][ T272] cleanup_net+0x451/0xb10 [ 76.639822][ T272] ? ops_free_list.part.0+0x3d0/0x3d0 [ 76.645293][ T272] process_one_work+0x98d/0x1600 [ 76.650985][ T272] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.656448][ T272] ? rwlock_bug.part.0+0x90/0x90 [ 76.662067][ T272] ? _raw_spin_lock_irq+0x41/0x50 [ 76.667277][ T272] worker_thread+0x64c/0x1120 [ 76.672639][ T272] ? process_one_work+0x1600/0x1600 [ 76.677884][ T272] kthread+0x3b1/0x4a0 [ 76.682511][ T272] ? __kthread_bind_mask+0xc0/0xc0 [ 76.687867][ T272] ret_from_fork+0x1f/0x30 [ 76.693108][ T272] Kernel panic - not syncing: panic_on_warn set ... [ 76.699723][ T272] CPU: 1 PID: 272 Comm: kworker/u4:7 Not tainted 5.12.0-syzkaller #0 [ 76.707808][ T272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.717870][ T272] Workqueue: netns cleanup_net [ 76.722651][ T272] Call Trace: [ 76.725936][ T272] dump_stack+0x141/0x1d7 [ 76.730276][ T272] panic+0x306/0x73d [ 76.734177][ T272] ? __warn_printk+0xf3/0xf3 [ 76.738787][ T272] ? __warn.cold+0x1a/0x44 [ 76.743212][ T272] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.748949][ T272] __warn.cold+0x35/0x44 [ 76.753203][ T272] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.758942][ T272] report_bug+0x1bd/0x210 [ 76.763287][ T272] handle_bug+0x3c/0x60 [ 76.767451][ T272] exc_invalid_op+0x14/0x40 [ 76.771962][ T272] asm_exc_invalid_op+0x12/0x20 [ 76.776822][ T272] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.783166][ T272] 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 d8 6d 8a e8 70 4b 8a 01 <0f> 0b e9 e5 00 00 00 e8 89 17 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 76.802790][ T272] RSP: 0018:ffffc90001bdfbc0 EFLAGS: 00010286 [ 76.808896][ T272] RAX: 0000000000000000 RBX: ffff8880243ba500 RCX: 0000000000000000 [ 76.816872][ T272] RDX: ffff888014beb880 RSI: ffffffff815c8ba5 RDI: fffff5200037bf6a [ 76.824851][ T272] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.832827][ T272] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888038d48f20 [ 76.840811][ T272] R13: 0000000000000000 R14: ffff888023c35d80 R15: 0000000000000001 [ 76.848798][ T272] ? wake_up_klogd.part.0+0x8e/0xd0 [ 76.854021][ T272] ? vprintk+0x95/0x260 [ 76.858207][ T272] nf_unregister_net_hooks+0x117/0x160 [ 76.863684][ T272] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.869593][ T272] ? arptable_filter_net_exit+0x20/0x20 [ 76.875150][ T272] cleanup_net+0x451/0xb10 [ 76.879581][ T272] ? ops_free_list.part.0+0x3d0/0x3d0 [ 76.884982][ T272] process_one_work+0x98d/0x1600 [ 76.889944][ T272] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.895342][ T272] ? rwlock_bug.part.0+0x90/0x90 [ 76.900307][ T272] ? _raw_spin_lock_irq+0x41/0x50 [ 76.905375][ T272] worker_thread+0x64c/0x1120 [ 76.910085][ T272] ? process_one_work+0x1600/0x1600 [ 76.915652][ T272] kthread+0x3b1/0x4a0 [ 76.919737][ T272] ? __kthread_bind_mask+0xc0/0xc0 [ 76.924866][ T272] ret_from_fork+0x1f/0x30 [ 76.930371][ T272] Kernel Offset: disabled [ 76.934948][ T272] Rebooting in 86400 seconds..