Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts. 2021/01/23 07:31:37 fuzzer started 2021/01/23 07:31:37 connecting to host at 10.128.0.26:44109 2021/01/23 07:31:37 checking machine... 2021/01/23 07:31:37 checking revisions... 2021/01/23 07:31:37 testing simple program... syzkaller login: [ 72.877906][ T8480] IPVS: ftp: loaded support on port[0] = 21 [ 73.017749][ T8480] chnl_net:caif_netlink_parms(): no params data found [ 73.077206][ T8480] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.086063][ T8480] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.095707][ T8480] device bridge_slave_0 entered promiscuous mode [ 73.106190][ T8480] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.116326][ T8480] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.126535][ T8480] device bridge_slave_1 entered promiscuous mode [ 73.149275][ T8480] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.161635][ T8480] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.187515][ T8480] team0: Port device team_slave_0 added [ 73.196735][ T8480] team0: Port device team_slave_1 added [ 73.215621][ T8480] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.223201][ T8480] 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. [ 73.250562][ T8480] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.264540][ T8480] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.271642][ T8480] 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. [ 73.298831][ T8480] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.329155][ T8480] device hsr_slave_0 entered promiscuous mode [ 73.336596][ T8480] device hsr_slave_1 entered promiscuous mode [ 73.446622][ T8480] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.458098][ T8480] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.477245][ T8480] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.488955][ T8480] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.519078][ T8480] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.527037][ T8480] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.535912][ T8480] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.543498][ T8480] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.595051][ T8480] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.609597][ T3178] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.622084][ T3178] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.632605][ T3178] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.642212][ T3178] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.658301][ T8480] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.671776][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.683876][ T19] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.691516][ T19] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.714830][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.725417][ T19] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.733257][ T19] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.746957][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.756366][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.768186][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.787495][ T8480] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.799037][ T8480] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.814775][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.824316][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.836519][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.853482][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.862249][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.878336][ T8480] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.899044][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.920032][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.928908][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.939425][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.951644][ T8480] device veth0_vlan entered promiscuous mode [ 73.964794][ T8480] device veth1_vlan entered promiscuous mode [ 73.990475][ T3178] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.000838][ T3178] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.010507][ T3178] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.024137][ T8480] device veth0_macvtap entered promiscuous mode [ 74.036743][ T8480] device veth1_macvtap entered promiscuous mode [ 74.058030][ T8480] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.066999][ T3178] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.077264][ T3178] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.091258][ T8480] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.101888][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.111374][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.126567][ T8480] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.136168][ T8480] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.147933][ T8480] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.157203][ T8480] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.246222][ T550] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.261757][ T550] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.286135][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 74.305497][ T24] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.315527][ T24] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.327060][ T8700] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/01/23 07:31:40 building call list... [ 75.174952][ T199] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.451757][ T199] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.698467][ T199] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.927299][ T199] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 77.932616][ T8463] can: request_module (can-proto-0) failed. [ 78.562028][ T199] device hsr_slave_0 left promiscuous mode [ 78.570339][ T199] device hsr_slave_1 left promiscuous mode [ 78.578004][ T199] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.585932][ T199] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.597203][ T199] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.605611][ T199] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.615395][ T199] device bridge_slave_1 left promiscuous mode [ 78.622876][ T199] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.637642][ T199] device bridge_slave_0 left promiscuous mode [ 78.644392][ T199] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.661355][ T199] device veth1_macvtap left promiscuous mode [ 78.668520][ T199] device veth0_macvtap left promiscuous mode [ 78.676798][ T199] device veth1_vlan left promiscuous mode [ 78.683649][ T199] device veth0_vlan left promiscuous mode executing program [ 82.312454][ T199] ------------[ cut here ]------------ [ 82.318467][ T199] WARNING: CPU: 0 PID: 199 at net/wireless/core.c:1455 cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.331649][ T199] Modules linked in: [ 82.336291][ T199] CPU: 1 PID: 199 Comm: kworker/u4:4 Not tainted 5.11.0-rc4-next-20210122-syzkaller #0 [ 82.346831][ T199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.358197][ T199] Workqueue: netns cleanup_net [ 82.363551][ T199] RIP: 0010:cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.370600][ T199] Code: be e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 a0 cd c6 00 31 ff 89 c3 89 c6 e8 25 ec 3c f9 85 db 0f 85 64 f9 ff ff e8 98 e4 3c f9 <0f> 0b e9 58 f9 ff ff e8 8c e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 [ 82.391900][ T199] RSP: 0018:ffffc9000113f720 EFLAGS: 00010293 [ 82.398769][ T199] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 82.408748][ T199] RDX: ffff888011845400 RSI: ffffffff883638c8 RDI: 0000000000000003 [ 82.417780][ T199] RBP: ffff88801b2d4000 R08: 0000000000000000 R09: ffffffff88362cdd [ 82.427875][ T199] R10: ffffffff883638bb R11: 0000000000000006 R12: 1ffff92000227ee9 [ 82.436558][ T199] R13: ffff88801b138580 R14: ffff888028cca000 R15: 0000000000000002 [ 82.445173][ T199] FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 82.455184][ T199] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.462377][ T199] CR2: 00007f2738693000 CR3: 00000000225a7000 CR4: 00000000001506f0 [ 82.471306][ T199] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.479977][ T199] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.488524][ T199] Call Trace: [ 82.492010][ T199] ? mark_lock+0xef/0x17b0 [ 82.498743][ T199] ? cfg80211_register_wdev+0x320/0x320 [ 82.505322][ T199] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 82.511847][ T199] ? lock_chain_count+0x20/0x20 [ 82.517288][ T199] ? find_held_lock+0x2d/0x110 [ 82.523093][ T199] ? rt_flush_dev+0x1c9/0x260 [ 82.528105][ T199] ? mark_held_locks+0x9f/0xe0 [ 82.533540][ T199] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 82.540224][ T199] ? _find_next_bit.constprop.0+0x1a0/0x200 [ 82.546697][ T199] ? cpumask_next+0x3c/0x40 [ 82.551678][ T199] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 82.560043][ T199] ? rt_flush_dev+0x88/0x260 [ 82.565700][ T199] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 82.573047][ T199] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 82.580145][ T199] ? ipmr_device_event+0x1ab/0x220 [ 82.585958][ T199] notifier_call_chain+0xb5/0x200 [ 82.591458][ T199] call_netdevice_notifiers_info+0xb5/0x130 [ 82.597891][ T199] unregister_netdevice_many+0x943/0x1750 [ 82.604182][ T199] ? net_tx_action+0xbf0/0xbf0 [ 82.609601][ T199] ? unregister_netdevice_many+0x1750/0x1750 [ 82.616253][ T199] ? sysfs_remove_group+0xc2/0x170 [ 82.622104][ T199] ? br_dev_delete+0x112/0x190 [ 82.627230][ T199] default_device_exit_batch+0x2fa/0x3c0 [ 82.633269][ T199] ? unregister_netdev+0x20/0x20 [ 82.638632][ T199] ? __init_waitqueue_head+0xd0/0xd0 [ 82.646841][ T199] ? cfg802154_switch_netns+0x440/0x440 [ 82.654163][ T199] ? unregister_netdev+0x20/0x20 [ 82.660025][ T199] ? dev_change_net_namespace+0x1200/0x1200 [ 82.667028][ T199] ops_exit_list+0x10d/0x160 [ 82.672820][ T199] cleanup_net+0x4ea/0xb10 [ 82.677805][ T199] ? ops_free_list.part.0+0x3d0/0x3d0 [ 82.684659][ T199] process_one_work+0x98d/0x15f0 [ 82.690808][ T199] ? pwq_dec_nr_in_flight+0x320/0x320 [ 82.697374][ T199] ? rwlock_bug.part.0+0x90/0x90 [ 82.703083][ T199] ? _raw_spin_lock_irq+0x41/0x50 [ 82.709065][ T199] worker_thread+0x64c/0x1120 [ 82.714954][ T199] ? __kthread_parkme+0x13f/0x1e0 [ 82.720967][ T199] ? process_one_work+0x15f0/0x15f0 [ 82.727174][ T199] kthread+0x3b1/0x4a0 [ 82.731525][ T199] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 82.738805][ T199] ret_from_fork+0x1f/0x30 [ 82.743941][ T199] Kernel panic - not syncing: panic_on_warn set ... [ 82.751136][ T199] CPU: 0 PID: 199 Comm: kworker/u4:4 Not tainted 5.11.0-rc4-next-20210122-syzkaller #0 [ 82.761228][ T199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.772258][ T199] Workqueue: netns cleanup_net [ 82.777662][ T199] Call Trace: [ 82.781451][ T199] dump_stack+0x107/0x163 [ 82.786193][ T199] panic+0x306/0x73d [ 82.790397][ T199] ? __warn_printk+0xf3/0xf3 [ 82.795881][ T199] ? __warn.cold+0x1a/0x44 [ 82.800516][ T199] ? cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.807161][ T199] __warn.cold+0x35/0x44 [ 82.811436][ T199] ? cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.818809][ T199] report_bug+0x1bd/0x210 [ 82.823369][ T199] handle_bug+0x3c/0x60 [ 82.827535][ T199] exc_invalid_op+0x14/0x40 [ 82.832235][ T199] asm_exc_invalid_op+0x12/0x20 [ 82.837576][ T199] RIP: 0010:cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.844694][ T199] Code: be e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 a0 cd c6 00 31 ff 89 c3 89 c6 e8 25 ec 3c f9 85 db 0f 85 64 f9 ff ff e8 98 e4 3c f9 <0f> 0b e9 58 f9 ff ff e8 8c e4 3c f9 49 8d 7d 68 be ff ff ff ff e8 [ 82.865515][ T199] RSP: 0018:ffffc9000113f720 EFLAGS: 00010293 [ 82.872325][ T199] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 82.880494][ T199] RDX: ffff888011845400 RSI: ffffffff883638c8 RDI: 0000000000000003 [ 82.888810][ T199] RBP: ffff88801b2d4000 R08: 0000000000000000 R09: ffffffff88362cdd [ 82.896983][ T199] R10: ffffffff883638bb R11: 0000000000000006 R12: 1ffff92000227ee9 [ 82.905304][ T199] R13: ffff88801b138580 R14: ffff888028cca000 R15: 0000000000000002 [ 82.913828][ T199] ? cfg80211_netdev_notifier_call+0xd3b/0x1460 [ 82.920603][ T199] ? cfg80211_netdev_notifier_call+0x15d/0x1460 [ 82.927828][ T199] ? cfg80211_netdev_notifier_call+0xd48/0x1460 [ 82.934535][ T199] ? mark_lock+0xef/0x17b0 [ 82.939268][ T199] ? cfg80211_register_wdev+0x320/0x320 [ 82.945014][ T199] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 82.951657][ T199] ? lock_chain_count+0x20/0x20 [ 82.956970][ T199] ? find_held_lock+0x2d/0x110 [ 82.961752][ T199] ? rt_flush_dev+0x1c9/0x260 [ 82.966715][ T199] ? mark_held_locks+0x9f/0xe0 [ 82.972040][ T199] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 82.977779][ T199] ? _find_next_bit.constprop.0+0x1a0/0x200 [ 82.984512][ T199] ? cpumask_next+0x3c/0x40 [ 82.989265][ T199] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 82.995002][ T199] ? rt_flush_dev+0x88/0x260 [ 82.999893][ T199] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 83.007022][ T199] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 83.013900][ T199] ? ipmr_device_event+0x1ab/0x220 [ 83.019331][ T199] notifier_call_chain+0xb5/0x200 [ 83.025038][ T199] call_netdevice_notifiers_info+0xb5/0x130 [ 83.030951][ T199] unregister_netdevice_many+0x943/0x1750 [ 83.037347][ T199] ? net_tx_action+0xbf0/0xbf0 [ 83.042216][ T199] ? unregister_netdevice_many+0x1750/0x1750 [ 83.048428][ T199] ? sysfs_remove_group+0xc2/0x170 [ 83.053726][ T199] ? br_dev_delete+0x112/0x190 [ 83.058812][ T199] default_device_exit_batch+0x2fa/0x3c0 [ 83.064749][ T199] ? unregister_netdev+0x20/0x20 [ 83.070005][ T199] ? __init_waitqueue_head+0xd0/0xd0 [ 83.075391][ T199] ? cfg802154_switch_netns+0x440/0x440 [ 83.081130][ T199] ? unregister_netdev+0x20/0x20 [ 83.086307][ T199] ? dev_change_net_namespace+0x1200/0x1200 [ 83.092565][ T199] ops_exit_list+0x10d/0x160 [ 83.097440][ T199] cleanup_net+0x4ea/0xb10 [ 83.102143][ T199] ? ops_free_list.part.0+0x3d0/0x3d0 [ 83.107627][ T199] process_one_work+0x98d/0x15f0 [ 83.112673][ T199] ? pwq_dec_nr_in_flight+0x320/0x320 [ 83.118361][ T199] ? rwlock_bug.part.0+0x90/0x90 [ 83.123498][ T199] ? _raw_spin_lock_irq+0x41/0x50 [ 83.128715][ T199] worker_thread+0x64c/0x1120 [ 83.133669][ T199] ? __kthread_parkme+0x13f/0x1e0 [ 83.138903][ T199] ? process_one_work+0x15f0/0x15f0 [ 83.144634][ T199] kthread+0x3b1/0x4a0 [ 83.149053][ T199] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 83.155482][ T199] ret_from_fork+0x1f/0x30 [ 83.162180][ T199] Kernel Offset: disabled [ 83.166773][ T199] Rebooting in 86400 seconds..