Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.190' (ECDSA) to the list of known hosts. 2021/05/11 21:49:09 fuzzer started 2021/05/11 21:49:09 connecting to host at 10.128.0.169:41041 2021/05/11 21:49:09 checking machine... 2021/05/11 21:49:09 checking revisions... 2021/05/11 21:49:09 testing simple program... syzkaller login: [ 72.198940][ T8420] chnl_net:caif_netlink_parms(): no params data found [ 72.272793][ T8420] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.281690][ T8420] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.290136][ T8420] device bridge_slave_0 entered promiscuous mode [ 72.302221][ T8420] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.309436][ T8420] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.318138][ T8420] device bridge_slave_1 entered promiscuous mode [ 72.339557][ T8420] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.351703][ T8420] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.375573][ T8420] team0: Port device team_slave_0 added [ 72.383098][ T8420] team0: Port device team_slave_1 added [ 72.401081][ T8420] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.408046][ T8420] 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. [ 72.434352][ T8420] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.447022][ T8420] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.454086][ T8420] 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. [ 72.480556][ T8420] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.510241][ T8420] device hsr_slave_0 entered promiscuous mode [ 72.517477][ T8420] device hsr_slave_1 entered promiscuous mode [ 72.641031][ T8420] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.654211][ T8420] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.664374][ T8420] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.676292][ T8420] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.702225][ T8420] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.709405][ T8420] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.717321][ T8420] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.724963][ T8420] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.772710][ T8420] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.786351][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.797685][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.806748][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.815650][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.829632][ T8420] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.842748][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.851328][ T3157] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.858553][ T3157] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.873199][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.882318][ T8642] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.889501][ T8642] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.911092][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.919937][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.941526][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.950074][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.959338][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.972320][ T8420] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.989986][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.998739][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.014819][ T8420] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.034892][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.055450][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.065393][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.074344][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.086766][ T8420] device veth0_vlan entered promiscuous mode [ 73.098538][ T8420] device veth1_vlan entered promiscuous mode [ 73.121088][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.130082][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.139276][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.154715][ T8420] device veth0_macvtap entered promiscuous mode [ 73.165286][ T8420] device veth1_macvtap entered promiscuous mode [ 73.176822][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.195145][ T8420] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.203155][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.213407][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.225772][ T8420] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.233525][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.243117][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.255834][ T8420] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.265669][ T8420] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.277151][ T8420] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.288869][ T8420] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.382615][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.390628][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 73.433173][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.452015][ T50] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.464441][ T50] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.474935][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/11 21:49:12 building call list... [ 74.194562][ T9] ------------[ cut here ]------------ [ 74.202013][ T9] hook not found, pf 3 num 0 [ 74.202852][ T9] WARNING: CPU: 0 PID: 9 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 74.220110][ T9] Modules linked in: [ 74.225326][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 74.235121][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.246639][ T9] Workqueue: netns cleanup_net [ 74.253402][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.259881][ T9] 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 b0 53 8a 01 <0f> 0b e9 e5 00 00 00 e8 89 13 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 74.284632][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 74.291950][ T9] RAX: 0000000000000000 RBX: ffff888024bf1400 RCX: 0000000000000000 [ 74.300010][ T9] RDX: ffff888011d78000 RSI: ffffffff815c8f65 RDI: fffff5200019cf6a [ 74.309814][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.319458][ T9] R10: ffffffff815c2dce R11: 0000000000000000 R12: ffff888030fc0f20 [ 74.328581][ T9] R13: 0000000000000000 R14: ffff888020094080 R15: 0000000000000001 [ 74.337830][ T9] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 74.348008][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.369190][ T9] CR2: 00007fe91b1f9000 CR3: 0000000012571000 CR4: 00000000001506f0 [ 74.379553][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.388623][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.397901][ T9] Call Trace: [ 74.402298][ T9] nf_unregister_net_hooks+0x117/0x160 [ 74.407817][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.415666][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 74.422882][ T9] cleanup_net+0x451/0xb10 [ 74.427347][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.434495][ T9] process_one_work+0x98d/0x1600 [ 74.439777][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.446709][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 74.452849][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 74.457941][ T9] worker_thread+0x64c/0x1120 [ 74.464147][ T9] ? process_one_work+0x1600/0x1600 [ 74.469393][ T9] kthread+0x3b1/0x4a0 [ 74.475361][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 74.480522][ T9] ret_from_fork+0x1f/0x30 [ 74.487095][ T9] Kernel panic - not syncing: panic_on_warn set ... [ 74.493864][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 74.502042][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.512200][ T9] Workqueue: netns cleanup_net [ 74.517082][ T9] Call Trace: [ 74.520386][ T9] dump_stack+0x141/0x1d7 [ 74.524738][ T9] panic+0x306/0x73d [ 74.528655][ T9] ? __warn_printk+0xf3/0xf3 [ 74.533273][ T9] ? __warn.cold+0x1a/0x44 [ 74.537798][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.543538][ T9] __warn.cold+0x35/0x44 [ 74.547815][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.553556][ T9] report_bug+0x1bd/0x210 [ 74.557937][ T9] handle_bug+0x3c/0x60 [ 74.562113][ T9] exc_invalid_op+0x14/0x40 [ 74.566630][ T9] asm_exc_invalid_op+0x12/0x20 [ 74.571495][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.577839][ T9] 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 b0 53 8a 01 <0f> 0b e9 e5 00 00 00 e8 89 13 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 74.597468][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 74.603561][ T9] RAX: 0000000000000000 RBX: ffff888024bf1400 RCX: 0000000000000000 [ 74.611558][ T9] RDX: ffff888011d78000 RSI: ffffffff815c8f65 RDI: fffff5200019cf6a [ 74.619551][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.627542][ T9] R10: ffffffff815c2dce R11: 0000000000000000 R12: ffff888030fc0f20 [ 74.635526][ T9] R13: 0000000000000000 R14: ffff888020094080 R15: 0000000000000001 [ 74.643519][ T9] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.648754][ T9] ? vprintk+0x95/0x260 [ 74.652958][ T9] nf_unregister_net_hooks+0x117/0x160 [ 74.658437][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.664456][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 74.670027][ T9] cleanup_net+0x451/0xb10 [ 74.674734][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.680149][ T9] process_one_work+0x98d/0x1600 [ 74.685200][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.690596][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 74.695547][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 74.700606][ T9] worker_thread+0x64c/0x1120 [ 74.705315][ T9] ? process_one_work+0x1600/0x1600 [ 74.710633][ T9] kthread+0x3b1/0x4a0 [ 74.714716][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 74.719848][ T9] ret_from_fork+0x1f/0x30 [ 74.724728][ T9] Kernel Offset: disabled [ 74.729311][ T9] Rebooting in 86400 seconds..