Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.78' (ECDSA) to the list of known hosts. 2021/04/30 03:42:04 fuzzer started 2021/04/30 03:42:04 connecting to host at 10.128.0.169:33393 2021/04/30 03:42:04 checking machine... 2021/04/30 03:42:04 checking revisions... 2021/04/30 03:42:04 testing simple program... syzkaller login: [ 73.988817][ T8452] chnl_net:caif_netlink_parms(): no params data found [ 74.045711][ T8452] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.053713][ T8452] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.063593][ T8452] device bridge_slave_0 entered promiscuous mode [ 74.074209][ T8452] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.081874][ T8452] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.091758][ T8452] device bridge_slave_1 entered promiscuous mode [ 74.113088][ T8452] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.124664][ T8452] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.149051][ T8452] team0: Port device team_slave_0 added [ 74.157701][ T8452] team0: Port device team_slave_1 added [ 74.176327][ T8452] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.184672][ T8452] 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. [ 74.214867][ T8452] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.228244][ T8452] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.236449][ T8452] 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. [ 74.263714][ T8452] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.290696][ T8452] device hsr_slave_0 entered promiscuous mode [ 74.297873][ T8452] device hsr_slave_1 entered promiscuous mode [ 74.403761][ T8452] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.415533][ T8452] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.426179][ T8452] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.437630][ T8452] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.465686][ T8452] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.473450][ T8452] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.482180][ T8452] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.490349][ T8452] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.540093][ T8452] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.556319][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.568639][ T3954] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.578702][ T3954] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.587943][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.603226][ T8452] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.615623][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.626526][ T37] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.633766][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.648790][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.658335][ T37] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.666257][ T37] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.693220][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.706397][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.726471][ T8452] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.739141][ T8452] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.753104][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.763451][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.773262][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.791287][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.803065][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.812882][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.827042][ T8452] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.847553][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.872304][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.882316][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.891155][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.902763][ T8452] device veth0_vlan entered promiscuous mode [ 74.915800][ T8452] device veth1_vlan entered promiscuous mode [ 74.939719][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.949062][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.960493][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.972475][ T8452] device veth0_macvtap entered promiscuous mode [ 74.984706][ T8452] device veth1_macvtap entered promiscuous mode [ 75.004259][ T8452] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.013996][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.024088][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.036871][ T8452] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.045339][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.054623][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.068140][ T8452] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.078617][ T8452] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.088941][ T8452] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.098915][ T8452] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 75.204107][ T32] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.231106][ T32] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.244185][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.269861][ T186] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.278896][ T186] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.290275][ T3954] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/04/30 03:42:07 building call list... [ 75.955592][ T186] ------------[ cut here ]------------ [ 75.969070][ T186] hook not found, pf 3 num 0 [ 75.970201][ T186] WARNING: CPU: 0 PID: 186 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 75.992970][ T186] Modules linked in: [ 75.998061][ T186] CPU: 0 PID: 186 Comm: kworker/u4:4 Not tainted 5.12.0-next-20210430-syzkaller #0 [ 76.008886][ T186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.024146][ T186] Workqueue: netns cleanup_net [ 76.029405][ T186] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.036162][ T186] 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 4d 6e 8a e8 e8 5b 8a 01 <0f> 0b e9 e5 00 00 00 e8 99 dd 2c fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 76.064933][ T186] RSP: 0018:ffffc900016ffbc0 EFLAGS: 00010286 [ 76.073273][ T186] RAX: 0000000000000000 RBX: ffff888144365700 RCX: 0000000000000000 [ 76.082064][ T186] RDX: ffff888012eb3900 RSI: ffffffff815cc9f5 RDI: fffff520002dff6a [ 76.091749][ T186] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.099997][ T186] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff88801a148f20 [ 76.108078][ T186] R13: 0000000000000000 R14: ffff888012b80800 R15: 0000000000000001 [ 76.117732][ T186] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 76.127491][ T186] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.136590][ T186] CR2: 00007f1e58047000 CR3: 000000000bc8e000 CR4: 00000000001506f0 [ 76.154617][ T186] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.168328][ T186] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.178177][ T186] Call Trace: [ 76.182006][ T186] nf_unregister_net_hooks+0x117/0x160 [ 76.187613][ T186] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.196685][ T186] ? arptable_filter_net_exit+0x20/0x20 [ 76.202396][ T186] cleanup_net+0x451/0xb10 [ 76.207123][ T186] ? ops_free_list.part.0+0x3d0/0x3d0 [ 76.214913][ T186] process_one_work+0x98d/0x1600 [ 76.222049][ T186] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.227599][ T186] ? rwlock_bug.part.0+0x90/0x90 [ 76.234513][ T186] ? _raw_spin_lock_irq+0x41/0x50 [ 76.240739][ T186] worker_thread+0x64c/0x1120 [ 76.245481][ T186] ? __kthread_parkme+0x13f/0x1e0 [ 76.252398][ T186] ? process_one_work+0x1600/0x1600 [ 76.258585][ T186] kthread+0x3b1/0x4a0 [ 76.262957][ T186] ? __kthread_bind_mask+0xc0/0xc0 [ 76.268267][ T186] ret_from_fork+0x1f/0x30 [ 76.274455][ T186] Kernel panic - not syncing: panic_on_warn set ... [ 76.281259][ T186] CPU: 0 PID: 186 Comm: kworker/u4:4 Not tainted 5.12.0-next-20210430-syzkaller #0 [ 76.290647][ T186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.301070][ T186] Workqueue: netns cleanup_net [ 76.306046][ T186] Call Trace: [ 76.309454][ T186] dump_stack+0x141/0x1d7 [ 76.313936][ T186] panic+0x306/0x73d [ 76.318035][ T186] ? __warn_printk+0xf3/0xf3 [ 76.322762][ T186] ? __warn.cold+0x1a/0x44 [ 76.327380][ T186] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.333610][ T186] __warn.cold+0x35/0x44 [ 76.337969][ T186] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.343894][ T186] report_bug+0x1bd/0x210 [ 76.348262][ T186] handle_bug+0x3c/0x60 [ 76.352534][ T186] exc_invalid_op+0x14/0x40 [ 76.357065][ T186] asm_exc_invalid_op+0x12/0x20 [ 76.362136][ T186] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.368747][ T186] 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 4d 6e 8a e8 e8 5b 8a 01 <0f> 0b e9 e5 00 00 00 e8 99 dd 2c fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 76.388724][ T186] RSP: 0018:ffffc900016ffbc0 EFLAGS: 00010286 [ 76.394900][ T186] RAX: 0000000000000000 RBX: ffff888144365700 RCX: 0000000000000000 [ 76.403360][ T186] RDX: ffff888012eb3900 RSI: ffffffff815cc9f5 RDI: fffff520002dff6a [ 76.411433][ T186] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.420171][ T186] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff88801a148f20 [ 76.428448][ T186] R13: 0000000000000000 R14: ffff888012b80800 R15: 0000000000000001 [ 76.437051][ T186] ? wake_up_klogd.part.0+0x8e/0xd0 [ 76.442466][ T186] ? vprintk+0x95/0x260 [ 76.446844][ T186] nf_unregister_net_hooks+0x117/0x160 [ 76.452352][ T186] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.458629][ T186] ? arptable_filter_net_exit+0x20/0x20 [ 76.464830][ T186] cleanup_net+0x451/0xb10 [ 76.469732][ T186] ? ops_free_list.part.0+0x3d0/0x3d0 [ 76.475773][ T186] process_one_work+0x98d/0x1600 [ 76.481004][ T186] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.486856][ T186] ? rwlock_bug.part.0+0x90/0x90 [ 76.492290][ T186] ? _raw_spin_lock_irq+0x41/0x50 [ 76.497764][ T186] worker_thread+0x64c/0x1120 [ 76.502504][ T186] ? __kthread_parkme+0x13f/0x1e0 [ 76.508436][ T186] ? process_one_work+0x1600/0x1600 [ 76.514267][ T186] kthread+0x3b1/0x4a0 [ 76.519079][ T186] ? __kthread_bind_mask+0xc0/0xc0 [ 76.524574][ T186] ret_from_fork+0x1f/0x30 [ 76.530726][ T186] Kernel Offset: disabled [ 76.535697][ T186] Rebooting in 86400 seconds..