Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.13' (ECDSA) to the list of known hosts. 2021/04/30 03:42:08 fuzzer started 2021/04/30 03:42:09 connecting to host at 10.128.0.169:39865 2021/04/30 03:42:09 checking machine... 2021/04/30 03:42:09 checking revisions... 2021/04/30 03:42:09 testing simple program... syzkaller login: [ 75.830010][ T8502] chnl_net:caif_netlink_parms(): no params data found [ 75.894796][ T8502] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.902543][ T8502] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.912649][ T8502] device bridge_slave_0 entered promiscuous mode [ 75.923962][ T8502] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.934599][ T8502] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.945046][ T8502] device bridge_slave_1 entered promiscuous mode [ 75.969944][ T8502] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.984513][ T8502] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.007625][ T8502] team0: Port device team_slave_0 added [ 76.015567][ T8502] team0: Port device team_slave_1 added [ 76.033881][ T8502] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.042988][ T8502] 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. [ 76.071230][ T8502] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.086255][ T8502] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.095502][ T8502] 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. [ 76.124596][ T8502] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.157152][ T8502] device hsr_slave_0 entered promiscuous mode [ 76.164731][ T8502] device hsr_slave_1 entered promiscuous mode [ 76.273102][ T8502] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.284370][ T8502] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.294884][ T8502] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.305443][ T8502] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.332562][ T8502] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.340188][ T8502] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.349234][ T8502] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.356473][ T8502] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.405717][ T8502] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.424723][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.442881][ T27] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.454445][ T27] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.464311][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.480213][ T8502] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.500735][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.511084][ T4875] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.519769][ T4875] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.542195][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.552890][ T27] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.561113][ T27] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.574793][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.584330][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.601963][ T4825] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.619423][ T4825] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.635161][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.655624][ T8502] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.681346][ T4825] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.702356][ T4825] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.725202][ T8502] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.750056][ T4825] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.775549][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.784859][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.794589][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.807845][ T8502] device veth0_vlan entered promiscuous mode [ 76.821469][ T8502] device veth1_vlan entered promiscuous mode [ 76.850306][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.860793][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.873843][ T8502] device veth0_macvtap entered promiscuous mode [ 76.886633][ T8502] device veth1_macvtap entered promiscuous mode [ 76.906448][ T8502] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.915597][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.925741][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.934732][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.944330][ T4875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.958347][ T8502] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.967618][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.977263][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.992156][ T8502] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.001430][ T8502] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.012120][ T8502] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.021886][ T8502] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 77.125854][ T70] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.160419][ T70] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.168311][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.180153][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.191247][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 77.201695][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready 2021/04/30 03:42:12 building call list... [ 77.904641][ T220] ------------[ cut here ]------------ [ 77.924617][ T220] hook not found, pf 3 num 0 [ 77.925285][ T220] WARNING: CPU: 0 PID: 220 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.947374][ T220] Modules linked in: [ 77.953001][ T220] CPU: 0 PID: 220 Comm: kworker/u4:4 Not tainted 5.12.0-next-20210430-syzkaller #0 [ 77.965494][ T220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.977130][ T220] Workqueue: netns cleanup_net [ 77.985463][ T220] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.992977][ T220] 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 [ 78.016974][ T220] RSP: 0018:ffffc90000e0fbc0 EFLAGS: 00010286 [ 78.024597][ T220] RAX: 0000000000000000 RBX: ffff8880244bb200 RCX: 0000000000000000 [ 78.035642][ T220] RDX: ffff888012f20000 RSI: ffffffff815cc9f5 RDI: fffff520001c1f6a [ 78.045623][ T220] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.057480][ T220] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff888020948f20 [ 78.075653][ T220] R13: 0000000000000000 R14: ffff88801474f280 R15: 0000000000000001 [ 78.085001][ T220] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 78.097775][ T220] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.106081][ T220] CR2: 00007f12dadae000 CR3: 000000000bc8e000 CR4: 00000000001506f0 [ 78.116660][ T220] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.125713][ T220] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.136747][ T220] Call Trace: [ 78.145683][ T220] nf_unregister_net_hooks+0x117/0x160 [ 78.153927][ T220] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.161452][ T220] ? arptable_filter_net_exit+0x20/0x20 [ 78.167245][ T220] cleanup_net+0x451/0xb10 [ 78.178182][ T220] ? ops_free_list.part.0+0x3d0/0x3d0 [ 78.187014][ T220] process_one_work+0x98d/0x1600 [ 78.195248][ T220] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.202154][ T220] ? rwlock_bug.part.0+0x90/0x90 [ 78.207582][ T220] ? _raw_spin_lock_irq+0x41/0x50 [ 78.215974][ T220] worker_thread+0x64c/0x1120 [ 78.226776][ T220] ? __kthread_parkme+0x13f/0x1e0 [ 78.234606][ T220] ? process_one_work+0x1600/0x1600 [ 78.242013][ T220] kthread+0x3b1/0x4a0 [ 78.246673][ T220] ? __kthread_bind_mask+0xc0/0xc0 [ 78.253491][ T220] ret_from_fork+0x1f/0x30 [ 78.258458][ T220] Kernel panic - not syncing: panic_on_warn set ... [ 78.265438][ T220] CPU: 0 PID: 220 Comm: kworker/u4:4 Not tainted 5.12.0-next-20210430-syzkaller #0 [ 78.275352][ T220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.286595][ T220] Workqueue: netns cleanup_net [ 78.291935][ T220] Call Trace: [ 78.295982][ T220] dump_stack+0x141/0x1d7 [ 78.301227][ T220] panic+0x306/0x73d [ 78.305503][ T220] ? __warn_printk+0xf3/0xf3 [ 78.310308][ T220] ? __warn.cold+0x1a/0x44 [ 78.314843][ T220] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.321254][ T220] __warn.cold+0x35/0x44 [ 78.325611][ T220] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.331875][ T220] report_bug+0x1bd/0x210 [ 78.336674][ T220] handle_bug+0x3c/0x60 [ 78.341128][ T220] exc_invalid_op+0x14/0x40 [ 78.346012][ T220] asm_exc_invalid_op+0x12/0x20 [ 78.350892][ T220] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.357500][ T220] 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 [ 78.378432][ T220] RSP: 0018:ffffc90000e0fbc0 EFLAGS: 00010286 [ 78.385131][ T220] RAX: 0000000000000000 RBX: ffff8880244bb200 RCX: 0000000000000000 [ 78.393870][ T220] RDX: ffff888012f20000 RSI: ffffffff815cc9f5 RDI: fffff520001c1f6a [ 78.401949][ T220] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.410850][ T220] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff888020948f20 [ 78.419455][ T220] R13: 0000000000000000 R14: ffff88801474f280 R15: 0000000000000001 [ 78.427636][ T220] ? wake_up_klogd.part.0+0x8e/0xd0 [ 78.433325][ T220] ? vprintk+0x95/0x260 [ 78.437623][ T220] nf_unregister_net_hooks+0x117/0x160 [ 78.443895][ T220] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.450608][ T220] ? arptable_filter_net_exit+0x20/0x20 [ 78.456446][ T220] cleanup_net+0x451/0xb10 [ 78.461239][ T220] ? ops_free_list.part.0+0x3d0/0x3d0 [ 78.466855][ T220] process_one_work+0x98d/0x1600 [ 78.472043][ T220] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.477621][ T220] ? rwlock_bug.part.0+0x90/0x90 [ 78.483384][ T220] ? _raw_spin_lock_irq+0x41/0x50 [ 78.488960][ T220] worker_thread+0x64c/0x1120 [ 78.494038][ T220] ? __kthread_parkme+0x13f/0x1e0 [ 78.499571][ T220] ? process_one_work+0x1600/0x1600 [ 78.505507][ T220] kthread+0x3b1/0x4a0 [ 78.510249][ T220] ? __kthread_bind_mask+0xc0/0xc0 [ 78.515472][ T220] ret_from_fork+0x1f/0x30 [ 78.523060][ T220] Kernel Offset: disabled [ 78.528608][ T220] Rebooting in 86400 seconds..