Starting Load/Save RF Kill Switch Status... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.73' (ECDSA) to the list of known hosts. 2021/04/29 05:52:21 fuzzer started 2021/04/29 05:52:21 connecting to host at 10.128.0.169:35583 2021/04/29 05:52:21 checking machine... 2021/04/29 05:52:21 checking revisions... 2021/04/29 05:52:21 testing simple program... syzkaller login: [ 69.889729][ T8454] chnl_net:caif_netlink_parms(): no params data found [ 69.944812][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.952845][ T8454] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.962748][ T8454] device bridge_slave_0 entered promiscuous mode [ 69.973638][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.981725][ T8454] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.989868][ T8454] device bridge_slave_1 entered promiscuous mode [ 70.013281][ T8454] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.025029][ T8454] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.047680][ T8454] team0: Port device team_slave_0 added [ 70.055424][ T8454] team0: Port device team_slave_1 added [ 70.073146][ T8454] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.080140][ T8454] 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. [ 70.107053][ T8454] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.122355][ T8454] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.129384][ T8454] 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. [ 70.155837][ T8454] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.182374][ T8454] device hsr_slave_0 entered promiscuous mode [ 70.189162][ T8454] device hsr_slave_1 entered promiscuous mode [ 70.297605][ T8454] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.308640][ T8454] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.319412][ T8454] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.332950][ T8454] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.359714][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.367182][ T8454] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.375227][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.383264][ T8454] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.431739][ T8454] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.446671][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.459431][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.469610][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.478424][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.494104][ T8454] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.506551][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.515878][ T4846] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.523066][ T4846] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.536844][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.545326][ T4846] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.552478][ T4846] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.574071][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.595188][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.604432][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.613485][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.622660][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.634360][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.655202][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.664089][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.679140][ T8454] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.698709][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.723311][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.732513][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.740449][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.753130][ T8454] device veth0_vlan entered promiscuous mode [ 70.767311][ T8454] device veth1_vlan entered promiscuous mode [ 70.790841][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.799842][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.808692][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.820588][ T8454] device veth0_macvtap entered promiscuous mode [ 70.830733][ T8454] device veth1_macvtap entered promiscuous mode [ 70.848901][ T8454] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.858875][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.869654][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.883237][ T8454] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.891152][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.899728][ T4846] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.913622][ T8454] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.923028][ T8454] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.933227][ T8454] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.942097][ T8454] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.036374][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.045689][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.064173][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.097531][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.108024][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.117516][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/04/29 05:52:24 building call list... executing program [ 71.787538][ T25] ------------[ cut here ]------------ [ 71.797163][ T25] hook not found, pf 3 num 0 [ 71.797826][ T25] WARNING: CPU: 0 PID: 25 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 71.817494][ T25] Modules linked in: [ 71.823065][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-next-20210429-syzkaller #0 [ 71.833960][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.844195][ T25] Workqueue: netns cleanup_net [ 71.849004][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 71.858359][ T25] 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 00 4e 6e 8a e8 58 5e 8a 01 <0f> 0b e9 e5 00 00 00 e8 09 e0 2c fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 71.884519][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 71.890641][ T25] RAX: 0000000000000000 RBX: ffff8880250cc300 RCX: 0000000000000000 [ 71.902756][ T25] RDX: ffff88801251b900 RSI: ffffffff815cc9f5 RDI: fffff520001bff6a [ 71.912668][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 71.920680][ T25] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff88801ab18f20 [ 71.929340][ T25] R13: 0000000000000000 R14: ffff888014160e00 R15: 0000000000000001 [ 71.938175][ T25] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 71.947371][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.954375][ T25] CR2: 000056386f42d180 CR3: 000000000bc8e000 CR4: 00000000001506f0 [ 71.964815][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.973160][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.981416][ T25] Call Trace: [ 71.984728][ T25] nf_unregister_net_hooks+0x117/0x160 [ 71.990217][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 71.996276][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 72.002132][ T25] cleanup_net+0x451/0xb10 [ 72.006697][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 72.013812][ T25] process_one_work+0x98d/0x1600 [ 72.018803][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 72.026284][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 72.031936][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 72.037125][ T25] worker_thread+0x64c/0x1120 [ 72.056646][ T25] ? process_one_work+0x1600/0x1600 [ 72.064133][ T25] kthread+0x3b1/0x4a0 [ 72.068344][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 72.076213][ T25] ret_from_fork+0x1f/0x30 [ 72.080709][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 72.087384][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-next-20210429-syzkaller #0 [ 72.096594][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.106931][ T25] Workqueue: netns cleanup_net [ 72.111810][ T25] Call Trace: [ 72.115109][ T25] dump_stack+0x141/0x1d7 [ 72.119490][ T25] panic+0x306/0x73d [ 72.123401][ T25] ? __warn_printk+0xf3/0xf3 [ 72.128019][ T25] ? __warn.cold+0x1a/0x44 [ 72.132459][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 72.138286][ T25] __warn.cold+0x35/0x44 [ 72.142549][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 72.148289][ T25] report_bug+0x1bd/0x210 [ 72.152839][ T25] handle_bug+0x3c/0x60 [ 72.157031][ T25] exc_invalid_op+0x14/0x40 [ 72.161674][ T25] asm_exc_invalid_op+0x12/0x20 [ 72.166636][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 72.173092][ T25] 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 00 4e 6e 8a e8 58 5e 8a 01 <0f> 0b e9 e5 00 00 00 e8 09 e0 2c fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 72.192714][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 72.198903][ T25] RAX: 0000000000000000 RBX: ffff8880250cc300 RCX: 0000000000000000 [ 72.206981][ T25] RDX: ffff88801251b900 RSI: ffffffff815cc9f5 RDI: fffff520001bff6a [ 72.215066][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 72.223318][ T25] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff88801ab18f20 [ 72.231386][ T25] R13: 0000000000000000 R14: ffff888014160e00 R15: 0000000000000001 [ 72.239482][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 72.244709][ T25] ? vprintk+0x95/0x260 [ 72.248912][ T25] nf_unregister_net_hooks+0x117/0x160 [ 72.254573][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 72.260494][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 72.266060][ T25] cleanup_net+0x451/0xb10 [ 72.270506][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 72.276264][ T25] process_one_work+0x98d/0x1600 [ 72.281251][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 72.286662][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 72.291619][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 72.296673][ T25] worker_thread+0x64c/0x1120 [ 72.301919][ T25] ? process_one_work+0x1600/0x1600 [ 72.307242][ T25] kthread+0x3b1/0x4a0 [ 72.311349][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 72.316580][ T25] ret_from_fork+0x1f/0x30 [ 72.322429][ T25] Kernel Offset: disabled [ 72.327343][ T25] Rebooting in 86400 seconds..