Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. 2021/05/07 09:37:37 fuzzer started 2021/05/07 09:37:37 connecting to host at 10.128.0.169:45715 2021/05/07 09:37:37 checking machine... 2021/05/07 09:37:37 checking revisions... 2021/05/07 09:37:37 testing simple program... syzkaller login: [ 75.204107][ T8426] chnl_net:caif_netlink_parms(): no params data found [ 75.257409][ T8426] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.265924][ T8426] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.275223][ T8426] device bridge_slave_0 entered promiscuous mode [ 75.285092][ T8426] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.293390][ T8426] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.301767][ T8426] device bridge_slave_1 entered promiscuous mode [ 75.324200][ T8426] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.336295][ T8426] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.360473][ T8426] team0: Port device team_slave_0 added [ 75.368232][ T8426] team0: Port device team_slave_1 added [ 75.386481][ T8426] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.394746][ T8426] 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. [ 75.424324][ T8426] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.437905][ T8426] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.446563][ T8426] 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. [ 75.474654][ T8426] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.509900][ T8426] device hsr_slave_0 entered promiscuous mode [ 75.524078][ T8426] device hsr_slave_1 entered promiscuous mode [ 75.628850][ T8426] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.642007][ T8426] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.652261][ T8426] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.662347][ T8426] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.690811][ T8426] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.698688][ T8426] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.707515][ T8426] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.715584][ T8426] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.763696][ T8426] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.778020][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.790437][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.800688][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.809741][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.824601][ T8426] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.837251][ T2942] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.846620][ T2942] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.854399][ T2942] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.873212][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.883934][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.891615][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.916146][ T3150] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.925685][ T3150] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.935205][ T3150] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.943979][ T3150] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.955098][ T8426] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.966385][ T3150] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.986062][ T2942] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.994330][ T2942] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.009041][ T8426] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.033244][ T4860] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.052096][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.061802][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.069967][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.084184][ T8426] device veth0_vlan entered promiscuous mode [ 76.097647][ T8426] device veth1_vlan entered promiscuous mode [ 76.120992][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.129845][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.139057][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.151607][ T8426] device veth0_macvtap entered promiscuous mode [ 76.162200][ T8426] device veth1_macvtap entered promiscuous mode [ 76.182115][ T8426] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.191826][ T4860] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.205397][ T4860] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.218369][ T8426] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.227080][ T4860] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.235838][ T4860] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.250421][ T8426] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.261364][ T8426] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.270987][ T8426] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.280640][ T8426] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.386057][ T185] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.401573][ T185] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 76.438220][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.450720][ T185] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.460178][ T185] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.471189][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 09:37:40 building call list... [ 77.175878][ T185] ------------[ cut here ]------------ [ 77.181657][ T185] hook not found, pf 3 num 0 [ 77.182307][ T185] WARNING: CPU: 0 PID: 185 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.217103][ T185] Modules linked in: [ 77.221265][ T185] CPU: 0 PID: 185 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 77.232895][ T185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.244288][ T185] Workqueue: netns cleanup_net [ 77.249258][ T185] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.262057][ T185] 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 40 4d 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 19 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.285556][ T185] RSP: 0018:ffffc9000128fbc0 EFLAGS: 00010286 [ 77.291700][ T185] RAX: 0000000000000000 RBX: ffff888149a92b00 RCX: 0000000000000000 [ 77.300373][ T185] RDX: ffff888012343880 RSI: ffffffff815c8ba5 RDI: fffff52000251f6a [ 77.310592][ T185] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.320267][ T185] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c440f20 [ 77.329994][ T185] R13: 0000000000000000 R14: ffff8880159b6c80 R15: 0000000000000001 [ 77.352490][ T185] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 77.361572][ T185] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.370696][ T185] CR2: 00007f59c0a32008 CR3: 0000000017318000 CR4: 00000000001506f0 [ 77.378997][ T185] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.387191][ T185] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.395363][ T185] Call Trace: [ 77.398873][ T185] nf_unregister_net_hooks+0x117/0x160 [ 77.404941][ T185] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.410880][ T185] ? arptable_filter_net_exit+0x20/0x20 [ 77.421502][ T185] cleanup_net+0x451/0xb10 [ 77.427086][ T185] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.433030][ T185] process_one_work+0x98d/0x1600 [ 77.438019][ T185] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.443621][ T185] ? rwlock_bug.part.0+0x90/0x90 [ 77.448680][ T185] ? _raw_spin_lock_irq+0x41/0x50 [ 77.454504][ T185] worker_thread+0x64c/0x1120 [ 77.459322][ T185] ? process_one_work+0x1600/0x1600 [ 77.465207][ T185] kthread+0x3b1/0x4a0 [ 77.469996][ T185] ? __kthread_bind_mask+0xc0/0xc0 [ 77.475660][ T185] ret_from_fork+0x1f/0x30 [ 77.480441][ T185] Kernel panic - not syncing: panic_on_warn set ... [ 77.487438][ T185] CPU: 0 PID: 185 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 77.495633][ T185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.506055][ T185] Workqueue: netns cleanup_net [ 77.510847][ T185] Call Trace: [ 77.514143][ T185] dump_stack+0x141/0x1d7 [ 77.518604][ T185] panic+0x306/0x73d [ 77.522864][ T185] ? __warn_printk+0xf3/0xf3 [ 77.527490][ T185] ? __warn.cold+0x1a/0x44 [ 77.531936][ T185] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.537764][ T185] __warn.cold+0x35/0x44 [ 77.542112][ T185] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.548517][ T185] report_bug+0x1bd/0x210 [ 77.552984][ T185] handle_bug+0x3c/0x60 [ 77.557159][ T185] exc_invalid_op+0x14/0x40 [ 77.561776][ T185] asm_exc_invalid_op+0x12/0x20 [ 77.566649][ T185] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.573061][ T185] 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 40 4d 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 19 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.593347][ T185] RSP: 0018:ffffc9000128fbc0 EFLAGS: 00010286 [ 77.599477][ T185] RAX: 0000000000000000 RBX: ffff888149a92b00 RCX: 0000000000000000 [ 77.607728][ T185] RDX: ffff888012343880 RSI: ffffffff815c8ba5 RDI: fffff52000251f6a [ 77.616162][ T185] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.624270][ T185] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c440f20 [ 77.632347][ T185] R13: 0000000000000000 R14: ffff8880159b6c80 R15: 0000000000000001 [ 77.640346][ T185] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.645583][ T185] ? vprintk+0x95/0x260 [ 77.649778][ T185] nf_unregister_net_hooks+0x117/0x160 [ 77.655392][ T185] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.661520][ T185] ? arptable_filter_net_exit+0x20/0x20 [ 77.667204][ T185] cleanup_net+0x451/0xb10 [ 77.671648][ T185] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.677226][ T185] process_one_work+0x98d/0x1600 [ 77.682209][ T185] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.687606][ T185] ? rwlock_bug.part.0+0x90/0x90 [ 77.692560][ T185] ? _raw_spin_lock_irq+0x41/0x50 [ 77.697626][ T185] worker_thread+0x64c/0x1120 [ 77.702423][ T185] ? process_one_work+0x1600/0x1600 [ 77.707821][ T185] kthread+0x3b1/0x4a0 [ 77.711920][ T185] ? __kthread_bind_mask+0xc0/0xc0 [ 77.717156][ T185] ret_from_fork+0x1f/0x30 [ 77.723563][ T185] Kernel Offset: disabled [ 77.728477][ T185] Rebooting in 86400 seconds..