[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts. 2021/01/22 12:04:34 fuzzer started 2021/01/22 12:04:34 connecting to host at 10.128.0.26:35449 2021/01/22 12:04:34 checking machine... 2021/01/22 12:04:34 checking revisions... 2021/01/22 12:04:34 testing simple program... syzkaller login: [ 72.832229][ T8450] IPVS: ftp: loaded support on port[0] = 21 [ 73.055713][ T8450] chnl_net:caif_netlink_parms(): no params data found [ 73.109385][ T8450] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.118257][ T8450] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.127361][ T8450] device bridge_slave_0 entered promiscuous mode [ 73.138403][ T8450] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.147398][ T8450] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.155860][ T8450] device bridge_slave_1 entered promiscuous mode [ 73.179078][ T8450] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.190684][ T8450] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.215211][ T8450] team0: Port device team_slave_0 added [ 73.223280][ T8450] team0: Port device team_slave_1 added [ 73.243622][ T8450] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.251651][ T8450] 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. [ 73.278857][ T8450] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.291966][ T8450] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.299288][ T8450] 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. [ 73.326318][ T8450] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.355133][ T8450] device hsr_slave_0 entered promiscuous mode [ 73.362288][ T8450] device hsr_slave_1 entered promiscuous mode [ 73.473102][ T8450] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.484501][ T8450] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.496939][ T8450] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.508531][ T8450] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.535152][ T8450] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.543060][ T8450] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.551834][ T8450] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.559215][ T8450] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.611566][ T8450] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.625585][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.638917][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.649774][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.659077][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.674191][ T8450] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.687573][ T4881] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.698211][ T4881] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.705591][ T4881] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.726743][ T4881] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.735711][ T4881] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.743580][ T4881] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.758117][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.767306][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.782312][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.795879][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.811239][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.823337][ T8450] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.843334][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.851951][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.866028][ T8450] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.888625][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.911581][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.921672][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.931319][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.943542][ T8450] device veth0_vlan entered promiscuous mode [ 73.959304][ T8450] device veth1_vlan entered promiscuous mode [ 73.983891][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.993755][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.002895][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.014663][ T8450] device veth0_macvtap entered promiscuous mode [ 74.028409][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.039325][ T8450] device veth1_macvtap entered promiscuous mode [ 74.060347][ T8450] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.068478][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.079220][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.092146][ T8450] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.101083][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.110504][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.123519][ T8450] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.132912][ T8450] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.142383][ T8450] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.153700][ T8450] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.246065][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.267130][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.286444][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.305226][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.324415][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.338291][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program 2021/01/22 12:04:37 building call list... [ 75.262782][ T270] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.496509][ T270] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.713208][ T270] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.949652][ T270] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 77.973847][ T8437] can: request_module (can-proto-0) failed. [ 78.524539][ T270] device hsr_slave_0 left promiscuous mode [ 78.532492][ T270] device hsr_slave_1 left promiscuous mode [ 78.540300][ T270] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.549990][ T270] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.560785][ T270] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.569296][ T270] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.580008][ T270] device bridge_slave_1 left promiscuous mode [ 78.587672][ T270] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.602075][ T270] device bridge_slave_0 left promiscuous mode [ 78.609011][ T270] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.626866][ T270] device veth1_macvtap left promiscuous mode [ 78.633682][ T270] device veth0_macvtap left promiscuous mode [ 78.640380][ T270] device veth1_vlan left promiscuous mode [ 78.647792][ T270] device veth0_vlan left promiscuous mode executing program [ 82.344774][ T270] ------------[ cut here ]------------ [ 82.351301][ T270] WARNING: CPU: 0 PID: 270 at net/wireless/core.c:1455 cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.365117][ T270] Modules linked in: [ 82.371197][ T270] CPU: 0 PID: 270 Comm: kworker/u4:7 Not tainted 5.11.0-rc4-next-20210122-syzkaller #0 [ 82.381661][ T270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.392638][ T270] Workqueue: netns cleanup_net [ 82.397756][ T270] RIP: 0010:cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.405174][ T270] Code: ce e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 b0 cd c6 00 31 ff 89 c3 89 c6 e8 35 ec 3c f9 85 db 0f 85 64 f9 ff ff e8 a8 e4 3c f9 <0f> 0b e9 58 f9 ff ff e8 9c e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 [ 82.426451][ T270] RSP: 0018:ffffc900016af720 EFLAGS: 00010293 [ 82.432864][ T270] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 82.441764][ T270] RDX: ffff88801135b800 RSI: ffffffff883638b8 RDI: 0000000000000003 [ 82.450525][ T270] RBP: ffff888035622000 R08: 0000000000000000 R09: ffffffff88362ccd [ 82.459604][ T270] R10: ffffffff883638ab R11: 0000000000000006 R12: 1ffff920002d5ee9 [ 82.472145][ T270] R13: ffff888144628580 R14: ffff888035630000 R15: 0000000000000002 [ 82.481324][ T270] FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 82.491320][ T270] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.498540][ T270] CR2: 0000000000a9b158 CR3: 00000000111dc000 CR4: 00000000001506e0 [ 82.508881][ T270] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.518127][ T270] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.526269][ T270] Call Trace: [ 82.529569][ T270] ? mark_lock+0xef/0x17b0 [ 82.533996][ T270] ? cfg80211_register_wdev+0x320/0x320 [ 82.539821][ T270] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 82.546660][ T270] ? lock_chain_count+0x20/0x20 [ 82.551737][ T270] ? find_held_lock+0x2d/0x110 [ 82.556872][ T270] ? rt_flush_dev+0x1c9/0x260 [ 82.562128][ T270] ? mark_held_locks+0x9f/0xe0 [ 82.567164][ T270] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 82.573441][ T270] ? _find_next_bit.constprop.0+0x1a0/0x200 [ 82.579644][ T270] ? cpumask_next+0x3c/0x40 [ 82.584524][ T270] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 82.590704][ T270] ? rt_flush_dev+0x88/0x260 [ 82.595409][ T270] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 82.602552][ T270] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 82.610332][ T270] ? ipmr_device_event+0x1ab/0x220 [ 82.616080][ T270] notifier_call_chain+0xb5/0x200 [ 82.621726][ T270] call_netdevice_notifiers_info+0xb5/0x130 [ 82.628250][ T270] unregister_netdevice_many+0x943/0x1750 [ 82.634509][ T270] ? net_tx_action+0xbf0/0xbf0 [ 82.640033][ T270] ? unregister_netdevice_many+0x1750/0x1750 [ 82.647079][ T270] ? sysfs_remove_group+0xc2/0x170 [ 82.652488][ T270] ? br_dev_delete+0x112/0x190 [ 82.657479][ T270] default_device_exit_batch+0x2fa/0x3c0 [ 82.663700][ T270] ? unregister_netdev+0x20/0x20 [ 82.669032][ T270] ? __init_waitqueue_head+0xd0/0xd0 [ 82.674977][ T270] ? cfg802154_switch_netns+0x440/0x440 [ 82.680822][ T270] ? unregister_netdev+0x20/0x20 [ 82.686300][ T270] ? dev_change_net_namespace+0x1200/0x1200 [ 82.692253][ T270] ops_exit_list+0x10d/0x160 [ 82.697263][ T270] cleanup_net+0x4ea/0xb10 [ 82.702646][ T270] ? ops_free_list.part.0+0x3d0/0x3d0 [ 82.708326][ T270] process_one_work+0x98d/0x15f0 [ 82.713635][ T270] ? pwq_dec_nr_in_flight+0x320/0x320 [ 82.719319][ T270] ? rwlock_bug.part.0+0x90/0x90 [ 82.724498][ T270] ? _raw_spin_lock_irq+0x41/0x50 [ 82.730075][ T270] worker_thread+0x64c/0x1120 [ 82.735149][ T270] ? __kthread_parkme+0x13f/0x1e0 [ 82.741106][ T270] ? process_one_work+0x15f0/0x15f0 [ 82.746795][ T270] kthread+0x3b1/0x4a0 [ 82.751290][ T270] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 82.757411][ T270] ret_from_fork+0x1f/0x30 [ 82.762129][ T270] Kernel panic - not syncing: panic_on_warn set ... [ 82.769201][ T270] CPU: 1 PID: 270 Comm: kworker/u4:7 Not tainted 5.11.0-rc4-next-20210122-syzkaller #0 [ 82.779377][ T270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.789979][ T270] Workqueue: netns cleanup_net [ 82.794838][ T270] Call Trace: [ 82.798365][ T270] dump_stack+0x107/0x163 [ 82.802862][ T270] panic+0x306/0x73d [ 82.806893][ T270] ? __warn_printk+0xf3/0xf3 [ 82.811985][ T270] ? __warn.cold+0x1a/0x44 [ 82.816962][ T270] ? cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.823707][ T270] __warn.cold+0x35/0x44 [ 82.828049][ T270] ? cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.834634][ T270] report_bug+0x1bd/0x210 [ 82.839155][ T270] handle_bug+0x3c/0x60 [ 82.843327][ T270] exc_invalid_op+0x14/0x40 [ 82.848358][ T270] asm_exc_invalid_op+0x12/0x20 [ 82.853308][ T270] RIP: 0010:cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.860524][ T270] Code: ce e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 b0 cd c6 00 31 ff 89 c3 89 c6 e8 35 ec 3c f9 85 db 0f 85 64 f9 ff ff e8 a8 e4 3c f9 <0f> 0b e9 58 f9 ff ff e8 9c e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 [ 82.881454][ T270] RSP: 0018:ffffc900016af720 EFLAGS: 00010293 [ 82.888067][ T270] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 82.896511][ T270] RDX: ffff88801135b800 RSI: ffffffff883638b8 RDI: 0000000000000003 [ 82.904690][ T270] RBP: ffff888035622000 R08: 0000000000000000 R09: ffffffff88362ccd [ 82.913015][ T270] R10: ffffffff883638ab R11: 0000000000000006 R12: 1ffff920002d5ee9 [ 82.921638][ T270] R13: ffff888144628580 R14: ffff888035630000 R15: 0000000000000002 [ 82.929792][ T270] ? cfg80211_netdev_notifier_call+0xd3b/0x1460 [ 82.936368][ T270] ? cfg80211_netdev_notifier_call+0x15d/0x1460 [ 82.942738][ T270] ? cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.949193][ T270] ? mark_lock+0xef/0x17b0 [ 82.953902][ T270] ? cfg80211_register_wdev+0x320/0x320 [ 82.959560][ T270] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 82.965734][ T270] ? lock_chain_count+0x20/0x20 [ 82.970680][ T270] ? find_held_lock+0x2d/0x110 [ 82.975559][ T270] ? rt_flush_dev+0x1c9/0x260 [ 82.980415][ T270] ? mark_held_locks+0x9f/0xe0 [ 82.985640][ T270] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 82.991361][ T270] ? _find_next_bit.constprop.0+0x1a0/0x200 [ 82.997260][ T270] ? cpumask_next+0x3c/0x40 [ 83.002056][ T270] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 83.008200][ T270] ? rt_flush_dev+0x88/0x260 [ 83.012882][ T270] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 83.024394][ T270] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 83.031095][ T270] ? ipmr_device_event+0x1ab/0x220 [ 83.036413][ T270] notifier_call_chain+0xb5/0x200 [ 83.041828][ T270] call_netdevice_notifiers_info+0xb5/0x130 [ 83.048098][ T270] unregister_netdevice_many+0x943/0x1750 [ 83.054000][ T270] ? net_tx_action+0xbf0/0xbf0 [ 83.059034][ T270] ? unregister_netdevice_many+0x1750/0x1750 [ 83.065457][ T270] ? sysfs_remove_group+0xc2/0x170 [ 83.070796][ T270] ? br_dev_delete+0x112/0x190 [ 83.075877][ T270] default_device_exit_batch+0x2fa/0x3c0 [ 83.081538][ T270] ? unregister_netdev+0x20/0x20 [ 83.086500][ T270] ? __init_waitqueue_head+0xd0/0xd0 [ 83.091972][ T270] ? cfg802154_switch_netns+0x440/0x440 [ 83.097703][ T270] ? unregister_netdev+0x20/0x20 [ 83.103121][ T270] ? dev_change_net_namespace+0x1200/0x1200 [ 83.109257][ T270] ops_exit_list+0x10d/0x160 [ 83.113959][ T270] cleanup_net+0x4ea/0xb10 [ 83.118469][ T270] ? ops_free_list.part.0+0x3d0/0x3d0 [ 83.124049][ T270] process_one_work+0x98d/0x15f0 [ 83.129206][ T270] ? pwq_dec_nr_in_flight+0x320/0x320 [ 83.134781][ T270] ? rwlock_bug.part.0+0x90/0x90 [ 83.139955][ T270] ? _raw_spin_lock_irq+0x41/0x50 [ 83.145360][ T270] worker_thread+0x64c/0x1120 [ 83.150153][ T270] ? __kthread_parkme+0x13f/0x1e0 [ 83.155267][ T270] ? process_one_work+0x15f0/0x15f0 [ 83.160840][ T270] kthread+0x3b1/0x4a0 [ 83.165164][ T270] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 83.171350][ T270] ret_from_fork+0x1f/0x30 [ 83.177901][ T270] Kernel Offset: disabled [ 83.182762][ T270] Rebooting in 86400 seconds..