Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. 2021/05/11 20:12:47 fuzzer started 2021/05/11 20:12:47 connecting to host at 10.128.0.169:35443 2021/05/11 20:12:47 checking machine... 2021/05/11 20:12:47 checking revisions... 2021/05/11 20:12:47 testing simple program... syzkaller login: [ 78.138952][ T8449] chnl_net:caif_netlink_parms(): no params data found [ 78.197700][ T8449] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.206633][ T8449] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.215449][ T8449] device bridge_slave_0 entered promiscuous mode [ 78.225263][ T8449] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.232738][ T8449] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.241046][ T8449] device bridge_slave_1 entered promiscuous mode [ 78.263024][ T8449] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.276330][ T8449] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.302017][ T8449] team0: Port device team_slave_0 added [ 78.309964][ T8449] team0: Port device team_slave_1 added [ 78.333398][ T8449] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.341347][ T8449] 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. [ 78.369777][ T8449] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.384199][ T8449] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.392836][ T8449] 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. [ 78.421725][ T8449] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.449843][ T8449] device hsr_slave_0 entered promiscuous mode [ 78.458765][ T8449] device hsr_slave_1 entered promiscuous mode [ 78.583915][ T8449] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.595918][ T8449] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.606535][ T8449] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.617917][ T8449] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.646697][ T8449] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.654979][ T8449] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.663125][ T8449] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.670434][ T8449] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.720414][ T8449] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.735689][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.748371][ T3168] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.758881][ T3168] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.769054][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.784333][ T8449] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.797425][ T4840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.806794][ T4840] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.814418][ T4840] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.832599][ T4840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.843375][ T4840] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.851088][ T4840] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.869999][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.880244][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.895894][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.909737][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.923433][ T4840] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.935205][ T8449] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.955386][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.963489][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.979577][ T8449] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.002352][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.025681][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.034901][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.045258][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.056861][ T8449] device veth0_vlan entered promiscuous mode [ 79.072481][ T8449] device veth1_vlan entered promiscuous mode [ 79.091695][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.102607][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.120160][ T8449] device veth0_macvtap entered promiscuous mode [ 79.130061][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.139833][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.153749][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.164072][ T8449] device veth1_macvtap entered promiscuous mode [ 79.182971][ T8449] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.192191][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 79.202173][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.211469][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.225179][ T8449] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.237380][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.249969][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.264706][ T8449] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.274417][ T8449] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.285699][ T8449] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.295420][ T8449] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 79.403707][ T41] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.429107][ T41] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.446221][ T4840] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.461316][ T41] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.474915][ T41] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.485015][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/11 20:12:51 building call list... [ 80.165953][ T41] ------------[ cut here ]------------ [ 80.177165][ T41] hook not found, pf 3 num 0 [ 80.177789][ T41] WARNING: CPU: 0 PID: 41 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 80.199150][ T41] Modules linked in: [ 80.204349][ T41] CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 5.12.0-syzkaller #0 [ 80.214671][ T41] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.225348][ T41] Workqueue: netns cleanup_net [ 80.230333][ T41] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 80.238831][ T41] 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 10 58 8a 01 <0f> 0b e9 e5 00 00 00 e8 29 14 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 80.262502][ T41] RSP: 0018:ffffc90000e8fbc0 EFLAGS: 00010286 [ 80.268862][ T41] RAX: 0000000000000000 RBX: ffff888024acd100 RCX: 0000000000000000 [ 80.283448][ T41] RDX: ffff8880151754c0 RSI: ffffffff815c8ba5 RDI: fffff520001d1f6a [ 80.293414][ T41] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 80.303583][ T41] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c808f20 [ 80.312697][ T41] R13: 0000000000000000 R14: ffff8880220df500 R15: 0000000000000001 [ 80.323019][ T41] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 80.333042][ T41] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.339845][ T41] CR2: 0000560fb4d32160 CR3: 0000000013f55000 CR4: 00000000001506f0 [ 80.354863][ T41] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.365563][ T41] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.374917][ T41] Call Trace: [ 80.378479][ T41] nf_unregister_net_hooks+0x117/0x160 [ 80.388187][ T41] arpt_unregister_table_pre_exit+0x67/0x80 [ 80.395393][ T41] ? arptable_filter_net_exit+0x20/0x20 [ 80.404707][ T41] cleanup_net+0x451/0xb10 [ 80.409304][ T41] ? ops_free_list.part.0+0x3d0/0x3d0 [ 80.416406][ T41] process_one_work+0x98d/0x1600 [ 80.424175][ T41] ? pwq_dec_nr_in_flight+0x320/0x320 [ 80.429727][ T41] ? rwlock_bug.part.0+0x90/0x90 [ 80.438926][ T41] ? _raw_spin_lock_irq+0x41/0x50 [ 80.446490][ T41] worker_thread+0x64c/0x1120 [ 80.452351][ T41] ? __kthread_parkme+0x13f/0x1e0 [ 80.458832][ T41] ? process_one_work+0x1600/0x1600 [ 80.466846][ T41] kthread+0x3b1/0x4a0 [ 80.472234][ T41] ? __kthread_bind_mask+0xc0/0xc0 [ 80.477579][ T41] ret_from_fork+0x1f/0x30 [ 80.484930][ T41] Kernel panic - not syncing: panic_on_warn set ... [ 80.491896][ T41] CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 5.12.0-syzkaller #0 [ 80.500279][ T41] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.510359][ T41] Workqueue: netns cleanup_net [ 80.515149][ T41] Call Trace: [ 80.518438][ T41] dump_stack+0x141/0x1d7 [ 80.522805][ T41] panic+0x306/0x73d [ 80.527213][ T41] ? __warn_printk+0xf3/0xf3 [ 80.532055][ T41] ? __warn.cold+0x1a/0x44 [ 80.536674][ T41] ? __nf_unregister_net_hook+0x1eb/0x610 [ 80.542592][ T41] __warn.cold+0x35/0x44 [ 80.546947][ T41] ? __nf_unregister_net_hook+0x1eb/0x610 [ 80.552693][ T41] report_bug+0x1bd/0x210 [ 80.557164][ T41] handle_bug+0x3c/0x60 [ 80.561431][ T41] exc_invalid_op+0x14/0x40 [ 80.566039][ T41] asm_exc_invalid_op+0x12/0x20 [ 80.570906][ T41] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 80.577677][ T41] 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 10 58 8a 01 <0f> 0b e9 e5 00 00 00 e8 29 14 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 80.597949][ T41] RSP: 0018:ffffc90000e8fbc0 EFLAGS: 00010286 [ 80.604036][ T41] RAX: 0000000000000000 RBX: ffff888024acd100 RCX: 0000000000000000 [ 80.612379][ T41] RDX: ffff8880151754c0 RSI: ffffffff815c8ba5 RDI: fffff520001d1f6a [ 80.620711][ T41] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 80.628789][ T41] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c808f20 [ 80.636775][ T41] R13: 0000000000000000 R14: ffff8880220df500 R15: 0000000000000001 [ 80.644773][ T41] ? wake_up_klogd.part.0+0x8e/0xd0 [ 80.650044][ T41] ? vprintk+0x95/0x260 [ 80.654339][ T41] nf_unregister_net_hooks+0x117/0x160 [ 80.659839][ T41] arpt_unregister_table_pre_exit+0x67/0x80 [ 80.665935][ T41] ? arptable_filter_net_exit+0x20/0x20 [ 80.671517][ T41] cleanup_net+0x451/0xb10 [ 80.675981][ T41] ? ops_free_list.part.0+0x3d0/0x3d0 [ 80.681395][ T41] process_one_work+0x98d/0x1600 [ 80.686367][ T41] ? pwq_dec_nr_in_flight+0x320/0x320 [ 80.691939][ T41] ? rwlock_bug.part.0+0x90/0x90 [ 80.696990][ T41] ? _raw_spin_lock_irq+0x41/0x50 [ 80.702048][ T41] worker_thread+0x64c/0x1120 [ 80.706833][ T41] ? __kthread_parkme+0x13f/0x1e0 [ 80.712067][ T41] ? process_one_work+0x1600/0x1600 [ 80.717285][ T41] kthread+0x3b1/0x4a0 [ 80.721461][ T41] ? __kthread_bind_mask+0xc0/0xc0 [ 80.726954][ T41] ret_from_fork+0x1f/0x30 [ 80.733099][ T41] Kernel Offset: disabled [ 80.738126][ T41] Rebooting in 86400 seconds..