Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts. 2021/05/04 06:39:56 fuzzer started 2021/05/04 06:39:56 connecting to host at 10.128.0.169:36981 2021/05/04 06:39:56 checking machine... 2021/05/04 06:39:56 checking revisions... 2021/05/04 06:39:56 testing simple program... syzkaller login: [ 75.418196][ T8427] chnl_net:caif_netlink_parms(): no params data found [ 75.479974][ T8427] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.488743][ T8427] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.497510][ T8427] device bridge_slave_0 entered promiscuous mode [ 75.508297][ T8427] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.516298][ T8427] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.525209][ T8427] device bridge_slave_1 entered promiscuous mode [ 75.546486][ T8427] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.558664][ T8427] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.584521][ T8427] team0: Port device team_slave_0 added [ 75.593947][ T8427] team0: Port device team_slave_1 added [ 75.612029][ T8427] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.619221][ T8427] 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. [ 75.648799][ T8427] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.664181][ T8427] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.671879][ T8427] 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. [ 75.698960][ T8427] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.728404][ T8427] device hsr_slave_0 entered promiscuous mode [ 75.735526][ T8427] device hsr_slave_1 entered promiscuous mode [ 75.840842][ T8427] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.856312][ T8427] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.866218][ T8427] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.879087][ T8427] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.907382][ T8427] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.915604][ T8427] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.924269][ T8427] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.931663][ T8427] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.980542][ T8427] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.995799][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.008122][ T36] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.018051][ T36] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.028121][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.043591][ T8427] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.055692][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.064921][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.072905][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.086339][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.096272][ T2941] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.103927][ T2941] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.136454][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.157874][ T8427] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 76.170119][ T8427] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.184440][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.194086][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.203785][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.213241][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.222742][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.243908][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.252062][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.269635][ T8427] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.292182][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.315392][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.325534][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.334924][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.345550][ T8427] device veth0_vlan entered promiscuous mode [ 76.358761][ T8427] device veth1_vlan entered promiscuous mode [ 76.384497][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.393133][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.403864][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.418276][ T8427] device veth0_macvtap entered promiscuous mode [ 76.431133][ T8427] device veth1_macvtap entered promiscuous mode [ 76.454331][ T8427] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.464352][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.475340][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.488434][ T8427] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.497368][ T3877] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.507980][ T3877] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.519843][ T8427] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.533011][ T8427] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.542738][ T8427] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.554269][ T8427] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 76.659082][ T321] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.668722][ T321] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.699510][ T3877] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.722206][ T321] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.730521][ T321] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.742560][ T3877] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/04 06:39:59 building call list... [ 77.365892][ T197] ------------[ cut here ]------------ [ 77.373471][ T197] hook not found, pf 3 num 0 [ 77.374245][ T197] WARNING: CPU: 1 PID: 197 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.391598][ T197] Modules linked in: [ 77.396452][ T197] CPU: 1 PID: 197 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 77.411359][ T197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.424485][ T197] Workqueue: netns cleanup_net [ 77.429922][ T197] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.438374][ T197] 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 [ 77.461500][ T197] RSP: 0018:ffffc900017bfbc0 EFLAGS: 00010286 [ 77.467868][ T197] RAX: 0000000000000000 RBX: ffff888147ab9300 RCX: 0000000000000000 [ 77.480510][ T197] RDX: ffff8880127b8000 RSI: ffffffff815c8ba5 RDI: fffff520002f7f6a [ 77.492164][ T197] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.500458][ T197] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019158f20 [ 77.515168][ T197] R13: 0000000000000000 R14: ffff88801228cb00 R15: 0000000000000001 [ 77.525435][ T197] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 77.535036][ T197] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.544825][ T197] CR2: 000000c000a00000 CR3: 000000001d72a000 CR4: 00000000001506f0 [ 77.553353][ T197] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.561715][ T197] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.570216][ T197] Call Trace: [ 77.573665][ T197] nf_unregister_net_hooks+0x117/0x160 [ 77.579247][ T197] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.585864][ T197] ? arptable_filter_net_exit+0x20/0x20 [ 77.593638][ T197] cleanup_net+0x451/0xb10 [ 77.598112][ T197] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.605114][ T197] process_one_work+0x98d/0x1600 [ 77.610383][ T197] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.617483][ T197] ? rwlock_bug.part.0+0x90/0x90 [ 77.631288][ T197] ? _raw_spin_lock_irq+0x41/0x50 [ 77.636424][ T197] worker_thread+0x64c/0x1120 [ 77.646117][ T197] ? process_one_work+0x1600/0x1600 [ 77.653044][ T197] kthread+0x3b1/0x4a0 [ 77.657162][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 77.664058][ T197] ret_from_fork+0x1f/0x30 [ 77.668574][ T197] Kernel panic - not syncing: panic_on_warn set ... [ 77.675688][ T197] CPU: 0 PID: 197 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 77.684122][ T197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.694403][ T197] Workqueue: netns cleanup_net [ 77.699284][ T197] Call Trace: [ 77.702673][ T197] dump_stack+0x141/0x1d7 [ 77.707228][ T197] panic+0x306/0x73d [ 77.711240][ T197] ? __warn_printk+0xf3/0xf3 [ 77.715885][ T197] ? __warn.cold+0x1a/0x44 [ 77.720325][ T197] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.726064][ T197] __warn.cold+0x35/0x44 [ 77.730335][ T197] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.736275][ T197] report_bug+0x1bd/0x210 [ 77.740899][ T197] handle_bug+0x3c/0x60 [ 77.745245][ T197] exc_invalid_op+0x14/0x40 [ 77.750003][ T197] asm_exc_invalid_op+0x12/0x20 [ 77.755061][ T197] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.761523][ T197] 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 [ 77.781416][ T197] RSP: 0018:ffffc900017bfbc0 EFLAGS: 00010286 [ 77.787607][ T197] RAX: 0000000000000000 RBX: ffff888147ab9300 RCX: 0000000000000000 [ 77.796043][ T197] RDX: ffff8880127b8000 RSI: ffffffff815c8ba5 RDI: fffff520002f7f6a [ 77.804251][ T197] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.812782][ T197] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019158f20 [ 77.820800][ T197] R13: 0000000000000000 R14: ffff88801228cb00 R15: 0000000000000001 [ 77.828888][ T197] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.834297][ T197] ? vprintk+0x95/0x260 [ 77.838585][ T197] nf_unregister_net_hooks+0x117/0x160 [ 77.844070][ T197] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.850266][ T197] ? arptable_filter_net_exit+0x20/0x20 [ 77.855840][ T197] cleanup_net+0x451/0xb10 [ 77.860624][ T197] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.866115][ T197] process_one_work+0x98d/0x1600 [ 77.871086][ T197] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.876664][ T197] ? rwlock_bug.part.0+0x90/0x90 [ 77.881907][ T197] ? _raw_spin_lock_irq+0x41/0x50 [ 77.887184][ T197] worker_thread+0x64c/0x1120 [ 77.892082][ T197] ? process_one_work+0x1600/0x1600 [ 77.897483][ T197] kthread+0x3b1/0x4a0 [ 77.901655][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 77.907265][ T197] ret_from_fork+0x1f/0x30 [ 77.913982][ T197] Kernel Offset: disabled [ 77.919098][ T197] Rebooting in 86400 seconds..