Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.219' (ECDSA) to the list of known hosts. 2021/04/28 21:31:49 fuzzer started 2021/04/28 21:31:49 connecting to host at 10.128.0.169:44707 2021/04/28 21:31:49 checking machine... 2021/04/28 21:31:49 checking revisions... 2021/04/28 21:31:49 testing simple program... syzkaller login: [ 73.405112][ T8431] chnl_net:caif_netlink_parms(): no params data found [ 73.460337][ T8431] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.471903][ T8431] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.481803][ T8431] device bridge_slave_0 entered promiscuous mode [ 73.492123][ T8431] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.501513][ T8431] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.510542][ T8431] device bridge_slave_1 entered promiscuous mode [ 73.531476][ T8431] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.542639][ T8431] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.566671][ T8431] team0: Port device team_slave_0 added [ 73.575186][ T8431] team0: Port device team_slave_1 added [ 73.593522][ T8431] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.601069][ T8431] 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. [ 73.628209][ T8431] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.641895][ T8431] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.649301][ T8431] 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. [ 73.677611][ T8431] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.705681][ T8431] device hsr_slave_0 entered promiscuous mode [ 73.713762][ T8431] device hsr_slave_1 entered promiscuous mode [ 73.824993][ T8431] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.836887][ T8431] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.850585][ T8431] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.861168][ T8431] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.892135][ T8431] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.900568][ T8431] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.908969][ T8431] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.916846][ T8431] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.965803][ T8431] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.980798][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.993440][ T37] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.005593][ T37] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.015964][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.030520][ T8431] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.043522][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.053067][ T37] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.060600][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.073806][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.083315][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.090935][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.121576][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.131385][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.141374][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.151857][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.166102][ T8431] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.178793][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.187045][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.211044][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.219202][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.235651][ T8431] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.255714][ T8653] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.277146][ T8653] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.286784][ T8653] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.295589][ T8653] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.308297][ T8431] device veth0_vlan entered promiscuous mode [ 74.322482][ T8431] device veth1_vlan entered promiscuous mode [ 74.347945][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.356437][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.365160][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.377786][ T8431] device veth0_macvtap entered promiscuous mode [ 74.389976][ T8431] device veth1_macvtap entered promiscuous mode [ 74.410061][ T8431] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.421663][ T8653] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.431869][ T8653] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.445341][ T8431] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.453703][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.462848][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.475271][ T8431] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.485212][ T8431] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.494923][ T8431] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.505334][ T8431] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.601528][ T139] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.631237][ T139] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.650844][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.661546][ T229] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.672563][ T229] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.683173][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program 2021/04/28 21:31:52 building call list... [ 75.359274][ T1070] ------------[ cut here ]------------ [ 75.365311][ T1070] hook not found, pf 3 num 0 [ 75.366011][ T1070] WARNING: CPU: 1 PID: 1070 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 75.401265][ T1070] Modules linked in: [ 75.411499][ T1070] CPU: 1 PID: 1070 Comm: kworker/u4:5 Not tainted 5.12.0-rc7-syzkaller #0 [ 75.420881][ T1070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.432009][ T1070] Workqueue: netns cleanup_net [ 75.437544][ T1070] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 75.445638][ T1070] 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 00 6c 6c 8a e8 8e 38 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 36 35 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 75.465834][ T1070] RSP: 0018:ffffc900015afbc0 EFLAGS: 00010286 [ 75.472691][ T1070] RAX: 0000000000000000 RBX: ffff888020b4bd00 RCX: 0000000000000000 [ 75.483674][ T1070] RDX: ffff8880121c1c40 RSI: ffffffff815c5205 RDI: fffff520002b5f6a [ 75.492552][ T1070] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 75.501968][ T1070] R10: ffffffff815bdf9e R11: 0000000000000000 R12: ffff888018768f20 [ 75.511028][ T1070] R13: 0000000000000000 R14: ffff88801cd80b00 R15: 0000000000000001 [ 75.519945][ T1070] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 75.529839][ T1070] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.536682][ T1070] CR2: 0000562be721e160 CR3: 0000000015256000 CR4: 00000000001506e0 [ 75.545469][ T1070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.554102][ T1070] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.566630][ T1070] Call Trace: [ 75.571248][ T1070] nf_unregister_net_hooks+0x117/0x160 [ 75.576846][ T1070] arpt_unregister_table_pre_exit+0x67/0x80 [ 75.583424][ T1070] ? arptable_filter_net_exit+0x20/0x20 [ 75.589969][ T1070] cleanup_net+0x451/0xb10 [ 75.594840][ T1070] ? ops_free_list.part.0+0x3d0/0x3d0 [ 75.601235][ T1070] process_one_work+0x98d/0x1600 [ 75.606736][ T1070] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.613023][ T1070] ? rwlock_bug.part.0+0x90/0x90 [ 75.618607][ T1070] ? _raw_spin_lock_irq+0x41/0x50 [ 75.623773][ T1070] worker_thread+0x64c/0x1120 [ 75.629608][ T1070] ? __kthread_parkme+0x13f/0x1e0 [ 75.635046][ T1070] ? process_one_work+0x1600/0x1600 [ 75.644262][ T1070] kthread+0x3b1/0x4a0 [ 75.649178][ T1070] ? __kthread_bind_mask+0xc0/0xc0 [ 75.654413][ T1070] ret_from_fork+0x1f/0x30 [ 75.659545][ T1070] Kernel panic - not syncing: panic_on_warn set ... [ 75.666151][ T1070] CPU: 1 PID: 1070 Comm: kworker/u4:5 Not tainted 5.12.0-rc7-syzkaller #0 [ 75.674789][ T1070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.685346][ T1070] Workqueue: netns cleanup_net [ 75.690204][ T1070] Call Trace: [ 75.693481][ T1070] dump_stack+0x141/0x1d7 [ 75.697834][ T1070] panic+0x306/0x73d [ 75.702008][ T1070] ? __warn_printk+0xf3/0xf3 [ 75.706688][ T1070] ? __warn.cold+0x1a/0x44 [ 75.711207][ T1070] ? __nf_unregister_net_hook+0x1eb/0x610 [ 75.717152][ T1070] __warn.cold+0x35/0x44 [ 75.721710][ T1070] ? __nf_unregister_net_hook+0x1eb/0x610 [ 75.727720][ T1070] report_bug+0x1bd/0x210 [ 75.732154][ T1070] handle_bug+0x3c/0x60 [ 75.736416][ T1070] exc_invalid_op+0x14/0x40 [ 75.740975][ T1070] asm_exc_invalid_op+0x12/0x20 [ 75.745869][ T1070] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 75.752657][ T1070] 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 00 6c 6c 8a e8 8e 38 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 36 35 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 75.772825][ T1070] RSP: 0018:ffffc900015afbc0 EFLAGS: 00010286 [ 75.778987][ T1070] RAX: 0000000000000000 RBX: ffff888020b4bd00 RCX: 0000000000000000 [ 75.787574][ T1070] RDX: ffff8880121c1c40 RSI: ffffffff815c5205 RDI: fffff520002b5f6a [ 75.795673][ T1070] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 75.803846][ T1070] R10: ffffffff815bdf9e R11: 0000000000000000 R12: ffff888018768f20 [ 75.812486][ T1070] R13: 0000000000000000 R14: ffff88801cd80b00 R15: 0000000000000001 [ 75.820634][ T1070] ? wake_up_klogd.part.0+0x8e/0xd0 [ 75.826440][ T1070] ? vprintk_func+0x95/0x1e0 [ 75.831253][ T1070] nf_unregister_net_hooks+0x117/0x160 [ 75.837026][ T1070] arpt_unregister_table_pre_exit+0x67/0x80 [ 75.843660][ T1070] ? arptable_filter_net_exit+0x20/0x20 [ 75.849344][ T1070] cleanup_net+0x451/0xb10 [ 75.853788][ T1070] ? ops_free_list.part.0+0x3d0/0x3d0 [ 75.859339][ T1070] process_one_work+0x98d/0x1600 [ 75.864903][ T1070] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.870315][ T1070] ? rwlock_bug.part.0+0x90/0x90 [ 75.875290][ T1070] ? _raw_spin_lock_irq+0x41/0x50 [ 75.880343][ T1070] worker_thread+0x64c/0x1120 [ 75.885027][ T1070] ? __kthread_parkme+0x13f/0x1e0 [ 75.890063][ T1070] ? process_one_work+0x1600/0x1600 [ 75.896389][ T1070] kthread+0x3b1/0x4a0 [ 75.900467][ T1070] ? __kthread_bind_mask+0xc0/0xc0 [ 75.905615][ T1070] ret_from_fork+0x1f/0x30 [ 75.911663][ T1070] Kernel Offset: disabled [ 75.916504][ T1070] Rebooting in 86400 seconds..