Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.96' (ECDSA) to the list of known hosts. 2021/05/03 16:30:57 fuzzer started 2021/05/03 16:30:57 connecting to host at 10.128.0.169:34843 2021/05/03 16:30:57 checking machine... 2021/05/03 16:30:57 checking revisions... 2021/05/03 16:30:57 testing simple program... syzkaller login: [ 78.974424][ T8425] chnl_net:caif_netlink_parms(): no params data found [ 79.053185][ T8425] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.062918][ T8425] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.073940][ T8425] device bridge_slave_0 entered promiscuous mode [ 79.085273][ T8425] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.093068][ T8425] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.102584][ T8425] device bridge_slave_1 entered promiscuous mode [ 79.126144][ T8425] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.141626][ T8425] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.171607][ T8425] team0: Port device team_slave_0 added [ 79.181429][ T8425] team0: Port device team_slave_1 added [ 79.202662][ T8425] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.213869][ T8425] 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. [ 79.241471][ T8425] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.255769][ T8425] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.263591][ T8425] 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. [ 79.291127][ T8425] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.318910][ T8425] device hsr_slave_0 entered promiscuous mode [ 79.326205][ T8425] device hsr_slave_1 entered promiscuous mode [ 79.430858][ T8425] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.442616][ T8425] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.453295][ T8425] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.466032][ T8425] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.494842][ T8425] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.502579][ T8425] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.511366][ T8425] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.518846][ T8425] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.569995][ T8425] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.584088][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.598358][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.608601][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.622461][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.639184][ T8425] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.653789][ T4840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.664538][ T4840] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.672265][ T4840] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.687509][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.698717][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.706837][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.730012][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.740724][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.756308][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.770184][ T4840] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.785201][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.798372][ T8425] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.819753][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.829280][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.851186][ T8425] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.877577][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.901502][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.911749][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.921555][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.932900][ T8425] device veth0_vlan entered promiscuous mode [ 79.948527][ T8425] device veth1_vlan entered promiscuous mode [ 79.974031][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.984280][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.997821][ T8425] device veth0_macvtap entered promiscuous mode [ 80.010322][ T8425] device veth1_macvtap entered promiscuous mode [ 80.030352][ T8425] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.039686][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.049410][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.058857][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.069015][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.088884][ T8425] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.096852][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.106259][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.120792][ T8425] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.130382][ T8425] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.141464][ T8425] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.151374][ T8425] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 80.243456][ T300] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.257238][ T300] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.267650][ T8646] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.309199][ T300] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.318579][ T300] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.330866][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/03 16:31:00 building call list... [ 81.013078][ T300] ------------[ cut here ]------------ [ 81.020948][ T300] hook not found, pf 3 num 0 [ 81.021592][ T300] WARNING: CPU: 0 PID: 300 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 81.043467][ T300] Modules linked in: [ 81.051342][ T300] CPU: 0 PID: 300 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 81.061656][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.074413][ T300] Workqueue: netns cleanup_net [ 81.080346][ T300] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 81.088186][ T300] 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 78 6d 8a e8 60 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 81.110802][ T300] RSP: 0018:ffffc9000164fbc0 EFLAGS: 00010286 [ 81.120358][ T300] RAX: 0000000000000000 RBX: ffff888021d2ad00 RCX: 0000000000000000 [ 81.129595][ T300] RDX: ffff888012c48000 RSI: ffffffff815c8ba5 RDI: fffff520002c9f6a [ 81.138975][ T300] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 81.149257][ T300] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019a40f20 [ 81.159199][ T300] R13: 0000000000000000 R14: ffff888021c32c00 R15: 0000000000000001 [ 81.169258][ T300] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 81.182377][ T300] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.190502][ T300] CR2: 00007fd598bbf000 CR3: 00000000208fb000 CR4: 00000000001506f0 [ 81.205961][ T300] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.215538][ T300] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.226286][ T300] Call Trace: [ 81.231069][ T300] nf_unregister_net_hooks+0x117/0x160 [ 81.236750][ T300] arpt_unregister_table_pre_exit+0x67/0x80 [ 81.246112][ T300] ? arptable_filter_net_exit+0x20/0x20 [ 81.253931][ T300] cleanup_net+0x451/0xb10 [ 81.261681][ T300] ? ops_free_list.part.0+0x3d0/0x3d0 [ 81.268470][ T300] process_one_work+0x98d/0x1600 [ 81.274076][ T300] ? pwq_dec_nr_in_flight+0x320/0x320 [ 81.285656][ T300] ? rwlock_bug.part.0+0x90/0x90 [ 81.292771][ T300] ? _raw_spin_lock_irq+0x41/0x50 [ 81.300807][ T300] worker_thread+0x64c/0x1120 [ 81.305812][ T300] ? __kthread_parkme+0x13f/0x1e0 [ 81.314303][ T300] ? process_one_work+0x1600/0x1600 [ 81.323147][ T300] kthread+0x3b1/0x4a0 [ 81.328351][ T300] ? __kthread_bind_mask+0xc0/0xc0 [ 81.334454][ T300] ret_from_fork+0x1f/0x30 [ 81.342344][ T300] Kernel panic - not syncing: panic_on_warn set ... [ 81.349238][ T300] CPU: 0 PID: 300 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 81.358283][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.368908][ T300] Workqueue: netns cleanup_net [ 81.373809][ T300] Call Trace: [ 81.377380][ T300] dump_stack+0x141/0x1d7 [ 81.382566][ T300] panic+0x306/0x73d [ 81.386570][ T300] ? __warn_printk+0xf3/0xf3 [ 81.391632][ T300] ? __warn.cold+0x1a/0x44 [ 81.397818][ T300] ? __nf_unregister_net_hook+0x1eb/0x610 [ 81.404109][ T300] __warn.cold+0x35/0x44 [ 81.408863][ T300] ? __nf_unregister_net_hook+0x1eb/0x610 [ 81.414610][ T300] report_bug+0x1bd/0x210 [ 81.419322][ T300] handle_bug+0x3c/0x60 [ 81.423859][ T300] exc_invalid_op+0x14/0x40 [ 81.428565][ T300] asm_exc_invalid_op+0x12/0x20 [ 81.433709][ T300] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 81.442419][ T300] 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 78 6d 8a e8 60 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 81.464231][ T300] RSP: 0018:ffffc9000164fbc0 EFLAGS: 00010286 [ 81.471376][ T300] RAX: 0000000000000000 RBX: ffff888021d2ad00 RCX: 0000000000000000 [ 81.479929][ T300] RDX: ffff888012c48000 RSI: ffffffff815c8ba5 RDI: fffff520002c9f6a [ 81.488545][ T300] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 81.497841][ T300] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019a40f20 [ 81.506034][ T300] R13: 0000000000000000 R14: ffff888021c32c00 R15: 0000000000000001 [ 81.514510][ T300] ? wake_up_klogd.part.0+0x8e/0xd0 [ 81.520288][ T300] ? vprintk+0x95/0x260 [ 81.524661][ T300] nf_unregister_net_hooks+0x117/0x160 [ 81.530367][ T300] arpt_unregister_table_pre_exit+0x67/0x80 [ 81.536387][ T300] ? arptable_filter_net_exit+0x20/0x20 [ 81.542433][ T300] cleanup_net+0x451/0xb10 [ 81.547135][ T300] ? ops_free_list.part.0+0x3d0/0x3d0 [ 81.552721][ T300] process_one_work+0x98d/0x1600 [ 81.558291][ T300] ? pwq_dec_nr_in_flight+0x320/0x320 [ 81.564594][ T300] ? rwlock_bug.part.0+0x90/0x90 [ 81.570301][ T300] ? _raw_spin_lock_irq+0x41/0x50 [ 81.575543][ T300] worker_thread+0x64c/0x1120 [ 81.581246][ T300] ? __kthread_parkme+0x13f/0x1e0 [ 81.586755][ T300] ? process_one_work+0x1600/0x1600 [ 81.592082][ T300] kthread+0x3b1/0x4a0 [ 81.596535][ T300] ? __kthread_bind_mask+0xc0/0xc0 [ 81.602195][ T300] ret_from_fork+0x1f/0x30 [ 81.608499][ T300] Kernel Offset: disabled [ 81.616904][ T300] Rebooting in 86400 seconds..