Starting Load/Save RF Kill Switch Status... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.183' (ECDSA) to the list of known hosts. 2021/05/06 15:45:01 fuzzer started 2021/05/06 15:45:02 connecting to host at 10.128.0.169:33291 2021/05/06 15:45:02 checking machine... 2021/05/06 15:45:02 checking revisions... 2021/05/06 15:45:02 testing simple program... syzkaller login: [ 76.149388][ T8435] chnl_net:caif_netlink_parms(): no params data found [ 76.243177][ T8435] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.251817][ T8435] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.253152][ T8435] device bridge_slave_0 entered promiscuous mode [ 76.272115][ T8435] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.279758][ T8435] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.291113][ T8435] device bridge_slave_1 entered promiscuous mode [ 76.316627][ T8435] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.328322][ T8435] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.353991][ T8435] team0: Port device team_slave_0 added [ 76.361863][ T8435] team0: Port device team_slave_1 added [ 76.382046][ T8435] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.389100][ T8435] 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. [ 76.417095][ T8435] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.432045][ T8435] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.439478][ T8435] 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. [ 76.467568][ T8435] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.496471][ T8435] device hsr_slave_0 entered promiscuous mode [ 76.503508][ T8435] device hsr_slave_1 entered promiscuous mode [ 76.613301][ T8435] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.623835][ T8435] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.640290][ T8435] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.649558][ T8435] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.679655][ T8435] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.687187][ T8435] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.695483][ T8435] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.702930][ T8435] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.751903][ T8435] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.767772][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.783299][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.792390][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.802014][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.816024][ T8435] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.827463][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.836405][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.843775][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.855491][ T3906] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.865105][ T3906] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.872614][ T3906] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.894896][ T8656] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.903599][ T8656] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.916699][ T4844] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.932497][ T8656] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.944798][ T8435] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.957473][ T8435] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.966134][ T4844] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.985667][ T8656] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.994000][ T8656] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.008714][ T8435] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.028634][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.051793][ T3906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.060584][ T3906] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.068414][ T3906] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.079163][ T8435] device veth0_vlan entered promiscuous mode [ 77.093435][ T8435] device veth1_vlan entered promiscuous mode [ 77.117029][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.126402][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.137716][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.149791][ T8435] device veth0_macvtap entered promiscuous mode [ 77.160573][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.172082][ T8435] device veth1_macvtap entered promiscuous mode [ 77.194811][ T8435] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.202670][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.213316][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.226320][ T8435] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.236393][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.247806][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.260589][ T8435] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.278183][ T8435] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.289338][ T8435] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.298727][ T8435] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.394707][ T124] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.409330][ T124] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.434331][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 77.455129][ T124] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.464702][ T124] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.476732][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/06 15:45:05 building call list... [ 78.119162][ T423] ------------[ cut here ]------------ [ 78.128238][ T423] hook not found, pf 3 num 0 [ 78.128888][ T423] WARNING: CPU: 1 PID: 423 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 78.148020][ T423] Modules linked in: [ 78.154584][ T423] CPU: 1 PID: 423 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 78.165915][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.177916][ T423] Workqueue: netns cleanup_net [ 78.185435][ T423] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.193011][ T423] 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 [ 78.229907][ T423] RSP: 0018:ffffc900024bfbc0 EFLAGS: 00010286 [ 78.236380][ T423] RAX: 0000000000000000 RBX: ffff88814a077000 RCX: 0000000000000000 [ 78.254838][ T423] RDX: ffff88801399d4c0 RSI: ffffffff815c8ba5 RDI: fffff52000497f6a [ 78.264355][ T423] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.275406][ T423] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801b8e0f20 [ 78.287495][ T423] R13: 0000000000000000 R14: ffff88802349f780 R15: 0000000000000001 [ 78.297079][ T423] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 78.307580][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.315717][ T423] CR2: 00007fbb8e80a000 CR3: 0000000026877000 CR4: 00000000001506e0 [ 78.325147][ T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.334144][ T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.343700][ T423] Call Trace: [ 78.347032][ T423] nf_unregister_net_hooks+0x117/0x160 [ 78.354743][ T423] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.366449][ T423] ? arptable_filter_net_exit+0x20/0x20 [ 78.373260][ T423] cleanup_net+0x451/0xb10 [ 78.377811][ T423] ? ops_free_list.part.0+0x3d0/0x3d0 [ 78.385438][ T423] process_one_work+0x98d/0x1600 [ 78.391657][ T423] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.397089][ T423] ? rwlock_bug.part.0+0x90/0x90 [ 78.405181][ T423] ? _raw_spin_lock_irq+0x41/0x50 [ 78.411409][ T423] worker_thread+0x64c/0x1120 [ 78.416148][ T423] ? __kthread_parkme+0x13f/0x1e0 [ 78.423354][ T423] ? process_one_work+0x1600/0x1600 [ 78.428684][ T423] kthread+0x3b1/0x4a0 [ 78.434915][ T423] ? __kthread_bind_mask+0xc0/0xc0 [ 78.442332][ T423] ret_from_fork+0x1f/0x30 [ 78.446838][ T423] Kernel panic - not syncing: panic_on_warn set ... [ 78.453767][ T423] CPU: 1 PID: 423 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 78.461915][ T423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.471963][ T423] Workqueue: netns cleanup_net [ 78.476828][ T423] Call Trace: [ 78.480154][ T423] dump_stack+0x141/0x1d7 [ 78.484580][ T423] panic+0x306/0x73d [ 78.488554][ T423] ? __warn_printk+0xf3/0xf3 [ 78.493243][ T423] ? __warn.cold+0x1a/0x44 [ 78.497881][ T423] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.503798][ T423] __warn.cold+0x35/0x44 [ 78.508222][ T423] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.514033][ T423] report_bug+0x1bd/0x210 [ 78.518455][ T423] handle_bug+0x3c/0x60 [ 78.522614][ T423] exc_invalid_op+0x14/0x40 [ 78.527388][ T423] asm_exc_invalid_op+0x12/0x20 [ 78.532494][ T423] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.539171][ T423] 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 [ 78.559098][ T423] RSP: 0018:ffffc900024bfbc0 EFLAGS: 00010286 [ 78.565262][ T423] RAX: 0000000000000000 RBX: ffff88814a077000 RCX: 0000000000000000 [ 78.573416][ T423] RDX: ffff88801399d4c0 RSI: ffffffff815c8ba5 RDI: fffff52000497f6a [ 78.581815][ T423] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.589864][ T423] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801b8e0f20 [ 78.598106][ T423] R13: 0000000000000000 R14: ffff88802349f780 R15: 0000000000000001 [ 78.606095][ T423] ? wake_up_klogd.part.0+0x8e/0xd0 [ 78.611417][ T423] ? vprintk+0x95/0x260 [ 78.615752][ T423] nf_unregister_net_hooks+0x117/0x160 [ 78.621213][ T423] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.627460][ T423] ? arptable_filter_net_exit+0x20/0x20 [ 78.633275][ T423] cleanup_net+0x451/0xb10 [ 78.637691][ T423] ? ops_free_list.part.0+0x3d0/0x3d0 [ 78.643242][ T423] process_one_work+0x98d/0x1600 [ 78.648280][ T423] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.653747][ T423] ? rwlock_bug.part.0+0x90/0x90 [ 78.658769][ T423] ? _raw_spin_lock_irq+0x41/0x50 [ 78.663891][ T423] worker_thread+0x64c/0x1120 [ 78.668837][ T423] ? __kthread_parkme+0x13f/0x1e0 [ 78.673976][ T423] ? process_one_work+0x1600/0x1600 [ 78.679193][ T423] kthread+0x3b1/0x4a0 [ 78.683270][ T423] ? __kthread_bind_mask+0xc0/0xc0 [ 78.688393][ T423] ret_from_fork+0x1f/0x30 [ 78.694577][ T423] Kernel Offset: disabled [ 78.699187][ T423] Rebooting in 86400 seconds..