Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.96' (ECDSA) to the list of known hosts. 2021/04/28 14:03:42 fuzzer started 2021/04/28 14:03:42 connecting to host at 10.128.0.169:32999 2021/04/28 14:03:42 checking machine... 2021/04/28 14:03:42 checking revisions... 2021/04/28 14:03:42 testing simple program... syzkaller login: [ 71.351046][ T8466] chnl_net:caif_netlink_parms(): no params data found [ 71.442308][ T8466] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.451241][ T8466] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.461025][ T8466] device bridge_slave_0 entered promiscuous mode [ 71.471083][ T8466] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.480934][ T8466] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.489567][ T8466] device bridge_slave_1 entered promiscuous mode [ 71.512785][ T8466] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.526630][ T8466] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.551632][ T8466] team0: Port device team_slave_0 added [ 71.559954][ T8466] team0: Port device team_slave_1 added [ 71.578665][ T8466] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.586541][ T8466] 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. [ 71.614563][ T8466] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.629862][ T8466] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.637545][ T8466] 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. [ 71.666011][ T8466] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.696369][ T8466] device hsr_slave_0 entered promiscuous mode [ 71.703285][ T8466] device hsr_slave_1 entered promiscuous mode [ 71.813346][ T8466] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.825268][ T8466] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.838176][ T8466] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.847861][ T8466] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.892874][ T8466] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.901142][ T8466] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.909413][ T8466] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.917070][ T8466] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.978528][ T8466] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.999374][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.014758][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.037705][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.047243][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.065097][ T8466] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.079364][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.088957][ T20] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.096315][ T20] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.117559][ T3339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.127846][ T3339] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.135114][ T3339] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.163542][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.173082][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.182277][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.194118][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.209695][ T3161] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.222191][ T8466] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.241254][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.249690][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.265354][ T8466] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.285386][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.307542][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.317853][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.328758][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.339610][ T8466] device veth0_vlan entered promiscuous mode [ 72.356738][ T8466] device veth1_vlan entered promiscuous mode [ 72.380089][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.390320][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.402290][ T8466] device veth0_macvtap entered promiscuous mode [ 72.415285][ T8466] device veth1_macvtap entered promiscuous mode [ 72.436519][ T8466] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.444574][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.454489][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.463751][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.473270][ T8688] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.484604][ T8466] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.495121][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.504654][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.518747][ T8466] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.529176][ T8466] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.538821][ T8466] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.548113][ T8466] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 72.638719][ T123] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.652742][ T123] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.678033][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.702669][ T1069] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.711648][ T1069] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.723053][ T37] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/04/28 14:03:45 building call list... [ 73.386946][ T1069] ------------[ cut here ]------------ [ 73.393039][ T1069] hook not found, pf 3 num 0 [ 73.393704][ T1069] WARNING: CPU: 0 PID: 1069 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 73.411905][ T1069] Modules linked in: [ 73.417843][ T1069] CPU: 0 PID: 1069 Comm: kworker/u4:5 Not tainted 5.12.0-next-20210428-syzkaller #0 [ 73.428900][ T1069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.441020][ T1069] Workqueue: netns cleanup_net [ 73.447037][ T1069] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 73.453931][ T1069] 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 c8 62 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 04 2d fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 73.477960][ T1069] RSP: 0018:ffffc900046afbc0 EFLAGS: 00010286 [ 73.484177][ T1069] RAX: 0000000000000000 RBX: ffff888144b2b600 RCX: 0000000000000000 [ 73.494755][ T1069] RDX: ffff888014ce1c80 RSI: ffffffff815cc9f5 RDI: fffff520008d5f6a [ 73.503067][ T1069] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 73.513218][ T1069] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff8880293a8f20 [ 73.522127][ T1069] R13: 0000000000000000 R14: ffff888012aa4d80 R15: 0000000000000001 [ 73.531882][ T1069] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 73.543867][ T1069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.551815][ T1069] CR2: 00007f7a95ec6000 CR3: 0000000024afc000 CR4: 00000000001506f0 [ 73.561106][ T1069] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.571391][ T1069] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.580689][ T1069] Call Trace: [ 73.584106][ T1069] nf_unregister_net_hooks+0x117/0x160 [ 73.591796][ T1069] arpt_unregister_table_pre_exit+0x67/0x80 [ 73.599008][ T1069] ? arptable_filter_net_exit+0x20/0x20 [ 73.605570][ T1069] cleanup_net+0x451/0xb10 [ 73.610137][ T1069] ? ops_free_list.part.0+0x3d0/0x3d0 [ 73.620746][ T1069] process_one_work+0x98d/0x1600 [ 73.627864][ T1069] ? pwq_dec_nr_in_flight+0x320/0x320 [ 73.633724][ T1069] ? rwlock_bug.part.0+0x90/0x90 [ 73.639884][ T1069] ? _raw_spin_lock_irq+0x41/0x50 [ 73.646140][ T1069] worker_thread+0x64c/0x1120 [ 73.651051][ T1069] ? __kthread_parkme+0x13f/0x1e0 [ 73.657665][ T1069] ? process_one_work+0x1600/0x1600 [ 73.663634][ T1069] kthread+0x3b1/0x4a0 [ 73.668825][ T1069] ? __kthread_bind_mask+0xc0/0xc0 [ 73.675223][ T1069] ret_from_fork+0x1f/0x30 [ 73.679818][ T1069] Kernel panic - not syncing: panic_on_warn set ... [ 73.686854][ T1069] CPU: 0 PID: 1069 Comm: kworker/u4:5 Not tainted 5.12.0-next-20210428-syzkaller #0 [ 73.696801][ T1069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.708024][ T1069] Workqueue: netns cleanup_net [ 73.713596][ T1069] Call Trace: [ 73.717071][ T1069] dump_stack+0x141/0x1d7 [ 73.721617][ T1069] panic+0x306/0x73d [ 73.726011][ T1069] ? __warn_printk+0xf3/0xf3 [ 73.731303][ T1069] ? __warn.cold+0x1a/0x44 [ 73.736361][ T1069] ? __nf_unregister_net_hook+0x1eb/0x610 [ 73.742643][ T1069] __warn.cold+0x35/0x44 [ 73.747532][ T1069] ? __nf_unregister_net_hook+0x1eb/0x610 [ 73.753544][ T1069] report_bug+0x1bd/0x210 [ 73.757910][ T1069] handle_bug+0x3c/0x60 [ 73.762660][ T1069] exc_invalid_op+0x14/0x40 [ 73.767565][ T1069] asm_exc_invalid_op+0x12/0x20 [ 73.772659][ T1069] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 73.779285][ T1069] 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 c8 62 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 04 2d fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 73.800158][ T1069] RSP: 0018:ffffc900046afbc0 EFLAGS: 00010286 [ 73.806909][ T1069] RAX: 0000000000000000 RBX: ffff888144b2b600 RCX: 0000000000000000 [ 73.815366][ T1069] RDX: ffff888014ce1c80 RSI: ffffffff815cc9f5 RDI: fffff520008d5f6a [ 73.823704][ T1069] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 73.832041][ T1069] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff8880293a8f20 [ 73.840202][ T1069] R13: 0000000000000000 R14: ffff888012aa4d80 R15: 0000000000000001 [ 73.848678][ T1069] ? wake_up_klogd.part.0+0x8e/0xd0 [ 73.854080][ T1069] ? vprintk+0x95/0x260 [ 73.858364][ T1069] nf_unregister_net_hooks+0x117/0x160 [ 73.863940][ T1069] arpt_unregister_table_pre_exit+0x67/0x80 [ 73.869952][ T1069] ? arptable_filter_net_exit+0x20/0x20 [ 73.875693][ T1069] cleanup_net+0x451/0xb10 [ 73.880131][ T1069] ? ops_free_list.part.0+0x3d0/0x3d0 [ 73.885922][ T1069] process_one_work+0x98d/0x1600 [ 73.890902][ T1069] ? pwq_dec_nr_in_flight+0x320/0x320 [ 73.896756][ T1069] ? rwlock_bug.part.0+0x90/0x90 [ 73.901792][ T1069] ? _raw_spin_lock_irq+0x41/0x50 [ 73.906844][ T1069] worker_thread+0x64c/0x1120 [ 73.911555][ T1069] ? __kthread_parkme+0x13f/0x1e0 [ 73.916691][ T1069] ? process_one_work+0x1600/0x1600 [ 73.922122][ T1069] kthread+0x3b1/0x4a0 [ 73.926415][ T1069] ? __kthread_bind_mask+0xc0/0xc0 [ 73.931740][ T1069] ret_from_fork+0x1f/0x30 [ 73.938544][ T1069] Kernel Offset: disabled [ 73.943204][ T1069] Rebooting in 86400 seconds..