Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. 2021/04/30 00:22:23 fuzzer started 2021/04/30 00:22:23 connecting to host at 10.128.0.169:33849 2021/04/30 00:22:23 checking machine... 2021/04/30 00:22:23 checking revisions... 2021/04/30 00:22:23 testing simple program... syzkaller login: [ 72.390883][ T8407] chnl_net:caif_netlink_parms(): no params data found [ 72.443782][ T8407] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.452064][ T8407] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.460298][ T8407] device bridge_slave_0 entered promiscuous mode [ 72.469355][ T8407] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.477476][ T8407] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.485930][ T8407] device bridge_slave_1 entered promiscuous mode [ 72.506885][ T8407] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.518346][ T8407] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.544470][ T8407] team0: Port device team_slave_0 added [ 72.552933][ T8407] team0: Port device team_slave_1 added [ 72.571680][ T8407] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.578649][ T8407] 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. [ 72.605929][ T8407] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.620716][ T8407] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.627866][ T8407] 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. [ 72.654673][ T8407] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.682968][ T8407] device hsr_slave_0 entered promiscuous mode [ 72.690361][ T8407] device hsr_slave_1 entered promiscuous mode [ 72.796121][ T8407] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.808324][ T8407] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.820274][ T8407] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.829597][ T8407] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.857240][ T8407] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.864487][ T8407] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.872610][ T8407] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.879793][ T8407] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.926769][ T8407] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.942351][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.955133][ T36] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.963974][ T36] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.973355][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.987399][ T8407] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.999134][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.008979][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.016120][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.041571][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.051861][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.058966][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.068408][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.078005][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.088562][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.105251][ T8407] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.116166][ T8407] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.129937][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.138867][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.147904][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.170862][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.178426][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.189129][ T8407] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.209535][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.233264][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.243273][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.252034][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.263931][ T8407] device veth0_vlan entered promiscuous mode [ 73.276867][ T8407] device veth1_vlan entered promiscuous mode [ 73.301108][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.309277][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.318552][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.331528][ T8407] device veth0_macvtap entered promiscuous mode [ 73.342558][ T8407] device veth1_macvtap entered promiscuous mode [ 73.366632][ T8407] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.374971][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.385642][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.398426][ T8407] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.406855][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.415500][ T8628] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.427539][ T8407] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.436648][ T8407] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.445531][ T8407] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.454720][ T8407] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.562448][ T127] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.577182][ T127] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.598566][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.622273][ T127] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.631678][ T127] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.642179][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/04/30 00:22:26 building call list... executing program [ 74.306417][ T49] ------------[ cut here ]------------ [ 74.318216][ T49] hook not found, pf 3 num 0 [ 74.318753][ T49] WARNING: CPU: 1 PID: 49 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 74.335665][ T49] Modules linked in: [ 74.340009][ T49] CPU: 1 PID: 49 Comm: kworker/u4:2 Not tainted 5.12.0-syzkaller #0 [ 74.348020][ T49] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.361558][ T49] Workqueue: netns cleanup_net [ 74.366375][ T49] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.375325][ T49] 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 40 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 74.397221][ T49] RSP: 0018:ffffc90000edfbc0 EFLAGS: 00010286 [ 74.404934][ T49] RAX: 0000000000000000 RBX: ffff8881477a3100 RCX: 0000000000000000 [ 74.415443][ T49] RDX: ffff888012121c40 RSI: ffffffff815c8ba5 RDI: fffff520001dbf6a [ 74.424034][ T49] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.434364][ T49] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019668f20 [ 74.443756][ T49] R13: 0000000000000000 R14: ffff88801550c180 R15: 0000000000000001 [ 74.457204][ T49] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 74.466847][ T49] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.475497][ T49] CR2: 00007f803a96f740 CR3: 000000001d905000 CR4: 00000000001506e0 [ 74.484198][ T49] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.495260][ T49] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.503799][ T49] Call Trace: [ 74.507135][ T49] nf_unregister_net_hooks+0x117/0x160 [ 74.514729][ T49] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.521163][ T49] ? arptable_filter_net_exit+0x20/0x20 [ 74.526776][ T49] cleanup_net+0x451/0xb10 [ 74.535256][ T49] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.542016][ T49] process_one_work+0x98d/0x1600 [ 74.547001][ T49] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.554623][ T49] ? rwlock_bug.part.0+0x90/0x90 [ 74.560105][ T49] ? _raw_spin_lock_irq+0x41/0x50 [ 74.565304][ T49] worker_thread+0x64c/0x1120 [ 74.572720][ T49] ? __kthread_parkme+0x13f/0x1e0 [ 74.577787][ T49] ? process_one_work+0x1600/0x1600 [ 74.583689][ T49] kthread+0x3b1/0x4a0 [ 74.588121][ T49] ? __kthread_bind_mask+0xc0/0xc0 [ 74.595438][ T49] ret_from_fork+0x1f/0x30 [ 74.600734][ T49] Kernel panic - not syncing: panic_on_warn set ... [ 74.607362][ T49] CPU: 1 PID: 49 Comm: kworker/u4:2 Not tainted 5.12.0-syzkaller #0 [ 74.615358][ T49] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.625428][ T49] Workqueue: netns cleanup_net [ 74.630222][ T49] Call Trace: [ 74.633513][ T49] dump_stack+0x141/0x1d7 [ 74.637867][ T49] panic+0x306/0x73d [ 74.641781][ T49] ? __warn_printk+0xf3/0xf3 [ 74.646402][ T49] ? __warn.cold+0x1a/0x44 [ 74.650849][ T49] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.656591][ T49] __warn.cold+0x35/0x44 [ 74.660853][ T49] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.666593][ T49] report_bug+0x1bd/0x210 [ 74.670946][ T49] handle_bug+0x3c/0x60 [ 74.675123][ T49] exc_invalid_op+0x14/0x40 [ 74.680017][ T49] asm_exc_invalid_op+0x12/0x20 [ 74.684887][ T49] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.691266][ T49] 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 40 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 74.710908][ T49] RSP: 0018:ffffc90000edfbc0 EFLAGS: 00010286 [ 74.717011][ T49] RAX: 0000000000000000 RBX: ffff8881477a3100 RCX: 0000000000000000 [ 74.725008][ T49] RDX: ffff888012121c40 RSI: ffffffff815c8ba5 RDI: fffff520001dbf6a [ 74.733013][ T49] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.741094][ T49] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019668f20 [ 74.749093][ T49] R13: 0000000000000000 R14: ffff88801550c180 R15: 0000000000000001 [ 74.757098][ T49] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.762335][ T49] ? vprintk+0x95/0x260 [ 74.766534][ T49] nf_unregister_net_hooks+0x117/0x160 [ 74.772063][ T49] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.777992][ T49] ? arptable_filter_net_exit+0x20/0x20 [ 74.783567][ T49] cleanup_net+0x451/0xb10 [ 74.788013][ T49] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.793428][ T49] process_one_work+0x98d/0x1600 [ 74.798431][ T49] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.803842][ T49] ? rwlock_bug.part.0+0x90/0x90 [ 74.808806][ T49] ? _raw_spin_lock_irq+0x41/0x50 [ 74.813875][ T49] worker_thread+0x64c/0x1120 [ 74.818595][ T49] ? __kthread_parkme+0x13f/0x1e0 [ 74.823640][ T49] ? process_one_work+0x1600/0x1600 [ 74.828869][ T49] kthread+0x3b1/0x4a0 [ 74.832961][ T49] ? __kthread_bind_mask+0xc0/0xc0 [ 74.838098][ T49] ret_from_fork+0x1f/0x30 [ 74.843250][ T49] Kernel Offset: disabled [ 74.847857][ T49] Rebooting in 86400 seconds..