Starting Load/Save RF Kill Switch Status... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. 2021/05/07 10:00:24 fuzzer started 2021/05/07 10:00:25 connecting to host at 10.128.0.169:44099 2021/05/07 10:00:25 checking machine... 2021/05/07 10:00:25 checking revisions... 2021/05/07 10:00:25 testing simple program... syzkaller login: [ 76.158088][ T8411] chnl_net:caif_netlink_parms(): no params data found [ 76.214509][ T8411] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.223201][ T8411] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.232615][ T8411] device bridge_slave_0 entered promiscuous mode [ 76.243165][ T8411] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.250968][ T8411] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.260462][ T8411] device bridge_slave_1 entered promiscuous mode [ 76.284897][ T8411] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.298426][ T8411] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.321699][ T8411] team0: Port device team_slave_0 added [ 76.329316][ T8411] team0: Port device team_slave_1 added [ 76.348897][ T8411] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.356051][ T8411] 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. [ 76.382979][ T8411] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.397886][ T8411] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.405224][ T8411] 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. [ 76.432878][ T8411] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.462100][ T8411] device hsr_slave_0 entered promiscuous mode [ 76.469079][ T8411] device hsr_slave_1 entered promiscuous mode [ 76.575217][ T8411] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.588410][ T8411] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.601827][ T8411] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.611259][ T8411] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.638808][ T8411] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.646278][ T8411] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.654142][ T8411] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.661656][ T8411] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.708778][ T8411] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.723749][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.738149][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.747253][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.757949][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.771489][ T8411] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.784251][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.794284][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.801789][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.814888][ T8633] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.824522][ T8633] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.832020][ T8633] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.853980][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.863623][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.884844][ T8411] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 76.896889][ T8411] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.909991][ T4843] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.919064][ T4843] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.929039][ T4843] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.938308][ T4843] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.956276][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.964329][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.979027][ T8411] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.000290][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.020786][ T8633] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.030198][ T8633] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.039301][ T8633] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.051826][ T8411] device veth0_vlan entered promiscuous mode [ 77.065465][ T8411] device veth1_vlan entered promiscuous mode [ 77.090506][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.098854][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.109138][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.122064][ T8411] device veth0_macvtap entered promiscuous mode [ 77.134196][ T8411] device veth1_macvtap entered promiscuous mode [ 77.143457][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.163537][ T8411] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.172318][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.182244][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.194685][ T8411] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.203447][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.213935][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.229098][ T8411] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.238195][ T8411] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.254403][ T8411] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.265402][ T8411] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 77.372686][ T218] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.382893][ T218] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.406769][ T8635] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.440422][ T107] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.450087][ T107] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.461138][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 10:00:28 building call list... [ 78.109962][ T107] ------------[ cut here ]------------ [ 78.116785][ T107] hook not found, pf 3 num 0 [ 78.117404][ T107] WARNING: CPU: 1 PID: 107 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 78.139096][ T107] Modules linked in: [ 78.143032][ T107] CPU: 1 PID: 107 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 78.157399][ T107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.168669][ T107] Workqueue: netns cleanup_net [ 78.173613][ T107] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.181248][ T107] 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 50 5b 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 17 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 78.203550][ T107] RSP: 0018:ffffc9000127fbc0 EFLAGS: 00010286 [ 78.212540][ T107] RAX: 0000000000000000 RBX: ffff888023f2bf00 RCX: 0000000000000000 [ 78.221891][ T107] RDX: ffff888014d554c0 RSI: ffffffff815c8ba5 RDI: fffff5200024ff6a [ 78.232503][ T107] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.242374][ T107] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c540f20 [ 78.253059][ T107] R13: 0000000000000000 R14: ffff888015f9fc80 R15: 0000000000000001 [ 78.262566][ T107] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 78.273956][ T107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.282624][ T107] CR2: 00007f1997fbe000 CR3: 0000000027544000 CR4: 00000000001506e0 [ 78.304705][ T107] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.316258][ T107] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.324282][ T107] Call Trace: [ 78.330450][ T107] nf_unregister_net_hooks+0x117/0x160 [ 78.337272][ T107] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.343405][ T107] ? arptable_filter_net_exit+0x20/0x20 [ 78.350672][ T107] cleanup_net+0x451/0xb10 [ 78.357388][ T107] ? ops_free_list.part.0+0x3d0/0x3d0 [ 78.362898][ T107] process_one_work+0x98d/0x1600 [ 78.374288][ T107] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.381310][ T107] ? rwlock_bug.part.0+0x90/0x90 [ 78.387695][ T107] ? _raw_spin_lock_irq+0x41/0x50 [ 78.392794][ T107] worker_thread+0x64c/0x1120 [ 78.399101][ T107] ? process_one_work+0x1600/0x1600 [ 78.404378][ T107] kthread+0x3b1/0x4a0 [ 78.410633][ T107] ? __kthread_bind_mask+0xc0/0xc0 [ 78.417237][ T107] ret_from_fork+0x1f/0x30 [ 78.421816][ T107] Kernel panic - not syncing: panic_on_warn set ... [ 78.428776][ T107] CPU: 1 PID: 107 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 78.436859][ T107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.447108][ T107] Workqueue: netns cleanup_net [ 78.452189][ T107] Call Trace: [ 78.455486][ T107] dump_stack+0x141/0x1d7 [ 78.459846][ T107] panic+0x306/0x73d [ 78.463757][ T107] ? __warn_printk+0xf3/0xf3 [ 78.468404][ T107] ? __warn.cold+0x1a/0x44 [ 78.473009][ T107] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.479041][ T107] __warn.cold+0x35/0x44 [ 78.483403][ T107] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.489206][ T107] report_bug+0x1bd/0x210 [ 78.493591][ T107] handle_bug+0x3c/0x60 [ 78.497784][ T107] exc_invalid_op+0x14/0x40 [ 78.502399][ T107] asm_exc_invalid_op+0x12/0x20 [ 78.507376][ T107] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.513734][ T107] 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 50 5b 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 17 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 78.533625][ T107] RSP: 0018:ffffc9000127fbc0 EFLAGS: 00010286 [ 78.540202][ T107] RAX: 0000000000000000 RBX: ffff888023f2bf00 RCX: 0000000000000000 [ 78.548279][ T107] RDX: ffff888014d554c0 RSI: ffffffff815c8ba5 RDI: fffff5200024ff6a [ 78.556560][ T107] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.564556][ T107] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c540f20 [ 78.572901][ T107] R13: 0000000000000000 R14: ffff888015f9fc80 R15: 0000000000000001 [ 78.580937][ T107] ? wake_up_klogd.part.0+0x8e/0xd0 [ 78.586191][ T107] ? vprintk+0x95/0x260 [ 78.590387][ T107] nf_unregister_net_hooks+0x117/0x160 [ 78.595875][ T107] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.601793][ T107] ? arptable_filter_net_exit+0x20/0x20 [ 78.607364][ T107] cleanup_net+0x451/0xb10 [ 78.612011][ T107] ? ops_free_list.part.0+0x3d0/0x3d0 [ 78.617679][ T107] process_one_work+0x98d/0x1600 [ 78.623110][ T107] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.628518][ T107] ? rwlock_bug.part.0+0x90/0x90 [ 78.633565][ T107] ? _raw_spin_lock_irq+0x41/0x50 [ 78.640018][ T107] worker_thread+0x64c/0x1120 [ 78.645346][ T107] ? process_one_work+0x1600/0x1600 [ 78.650653][ T107] kthread+0x3b1/0x4a0 [ 78.654753][ T107] ? __kthread_bind_mask+0xc0/0xc0 [ 78.660326][ T107] ret_from_fork+0x1f/0x30 [ 78.666681][ T107] Kernel Offset: disabled [ 78.671421][ T107] Rebooting in 86400 seconds..