[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 71.946262][ T27] audit: type=1800 audit(1583774537.517:25): pid=9425 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[ 71.977809][ T27] audit: type=1800 audit(1583774537.517:26): pid=9425 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[ 72.027829][ T27] audit: type=1800 audit(1583774537.517:27): pid=9425 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.15.197' (ECDSA) to the list of known hosts.
syzkaller login: [ 82.199138][ T9578] IPVS: ftp: loaded support on port[0] = 21
[ 82.262547][ T9578] chnl_net:caif_netlink_parms(): no params data found
[ 82.311625][ T9578] bridge0: port 1(bridge_slave_0) entered blocking state
[ 82.319280][ T9578] bridge0: port 1(bridge_slave_0) entered disabled state
[ 82.327157][ T9578] device bridge_slave_0 entered promiscuous mode
[ 82.336330][ T9578] bridge0: port 2(bridge_slave_1) entered blocking state
[ 82.343603][ T9578] bridge0: port 2(bridge_slave_1) entered disabled state
[ 82.351531][ T9578] device bridge_slave_1 entered promiscuous mode
[ 82.370235][ T9578] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 82.381129][ T9578] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 82.401193][ T9578] team0: Port device team_slave_0 added
[ 82.408632][ T9578] team0: Port device team_slave_1 added
[ 82.424591][ T9578] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 82.431607][ T9578] 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.
[ 82.457872][ T9578] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 82.470247][ T9578] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 82.477190][ T9578] 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.
[ 82.503358][ T9578] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 82.569957][ T9578] device hsr_slave_0 entered promiscuous mode
[ 82.608141][ T9578] device hsr_slave_1 entered promiscuous mode
[ 82.728536][ T9578] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 82.791230][ T9578] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 82.860617][ T9578] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 82.900878][ T9578] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 82.974012][ T9578] bridge0: port 2(bridge_slave_1) entered blocking state
[ 82.981178][ T9578] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 82.988962][ T9578] bridge0: port 1(bridge_slave_0) entered blocking state
[ 82.996097][ T9578] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 83.043209][ T9578] 8021q: adding VLAN 0 to HW filter on device bond0
[ 83.056542][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 83.066562][ T2715] bridge0: port 1(bridge_slave_0) entered disabled state
[ 83.074463][ T2715] bridge0: port 2(bridge_slave_1) entered disabled state
[ 83.082901][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 83.096654][ T9578] 8021q: adding VLAN 0 to HW filter on device team0
[ 83.107734][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 83.116461][ T3014] bridge0: port 1(bridge_slave_0) entered blocking state
[ 83.123569][ T3014] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 83.135066][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 83.144516][ T2715] bridge0: port 2(bridge_slave_1) entered blocking state
[ 83.151744][ T2715] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 83.171624][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 83.180486][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 83.193259][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 83.208711][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 83.217333][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 83.229900][ T9578] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 83.248382][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 83.255816][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 83.270808][ T9578] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 83.289369][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 83.300440][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 83.325422][ T9578] device veth0_vlan entered promiscuous mode
[ 83.332274][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 83.341361][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 83.350525][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 83.358288][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 83.371391][ T9578] device veth1_vlan entered promiscuous mode
[ 83.392515][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 83.400694][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 83.408900][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 83.417282][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 83.429825][ T9578] device veth0_macvtap entered promiscuous mode
[ 83.439520][ T9578] device veth1_macvtap entered promiscuous mode
[ 83.456964][ T9578] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 83.464777][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 83.473250][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 83.481581][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 83.490695][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 83.503586][ T9578] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 83.511084][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 83.520572][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
executing program
[ 83.719212][ T9583] team0: Device sit1 is of different type
[ 83.928751][ T9583] netlink: 8 bytes leftover after parsing attributes in process `syz-executor067'.
[ 83.940483][ T9583] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
[ 83.950212][ T9583] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 83.957604][ T9583] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 83.966333][ T9583] device bridge_slave_0 left promiscuous mode
[ 83.973239][ T9583] bridge0: port 1(bridge_slave_0) entered disabled state
[ 84.068230][ T9583] device bridge_slave_1 left promiscuous mode
[ 84.074476][ T9583] bridge0: port 2(bridge_slave_1) entered disabled state
[ 84.169532][ T9583] bond0: (slave bond_slave_0): Releasing backup interface
[ 84.338988][ T9583] bond0: (slave bond_slave_1): Releasing backup interface
[ 84.539972][ T9583] team0: Port device team_slave_0 removed
[ 84.648603][ T9583] team0: Port device team_slave_1 removed
[ 84.708116][ T9583] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 84.715526][ T9583] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 84.759185][ T9583] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 84.766737][ T9583] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 84.826941][ T9583] netlink: 'syz-executor067': attribute type 10 has an invalid length.
[ 84.837906][ T9583] team0: Device ipvlan1 failed to register rx_handler
executing program
[ 84.932051][ T9584] team0: Port device sit1 added
[ 84.938434][ T9584] netlink: 8 bytes leftover after parsing attributes in process `syz-executor067'.
[ 84.954409][ T9584] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
[ 84.965556][ T9584] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 84.975424][ T9584] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 85.088910][ T9584] team0: Port device sit1 removed
[ 85.137939][ T9584] netlink: 'syz-executor067': attribute type 10 has an invalid length.
[ 85.148787][ T9584] team0: Device ipvlan1 failed to register rx_handler
executing program
[ 85.408064][ T9585] netlink: 8 bytes leftover after parsing attributes in process `syz-executor067'.
[ 85.411888][ T9585] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
[ 85.426326][ T9585] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 85.433860][ T9585] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 85.450372][ T9585] netlink: 'syz-executor067': attribute type 10 has an invalid length.
[ 85.460452][ T9585] team0: Device ipvlan1 failed to register rx_handler
executing program
[ 85.698796][ T9586] netlink: 8 bytes leftover after parsing attributes in process `syz-executor067'.
[ 85.712309][ T9586] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
[ 85.722016][ T9586] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 85.729600][ T9586] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 85.745607][ T9586] netlink: 'syz-executor067': attribute type 10 has an invalid length.
[ 85.755613][ T9586] team0: Device ipvlan1 failed to register rx_handler
executing program
[ 85.947877][ C1] general protection fault, probably for non-canonical address 0xdffffc0020000068: 0000 [#1] PREEMPT SMP KASAN
[ 85.959720][ C1] KASAN: probably user-memory-access in range [0x0000000100000340-0x0000000100000347]
[ 85.969254][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0
[ 85.978338][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 85.988477][ C1] RIP: 0010:ipvlan_hard_header+0x114/0x150
[ 85.994259][ C1] Code: 5c 41 5d 41 5e 41 5f c3 45 31 e4 eb e4 e8 04 73 d2 fc 48 8d bd 48 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 2d 4c 8b a5 48 03 00 00 e9 32 ff ff ff e8 75 93 0f
[ 86.013847][ C1] RSP: 0018:ffffc90000da8810 EFLAGS: 00010203
[ 86.019893][ C1] RAX: dffffc0000000000 RBX: ffff88809469a000 RCX: ffff88809469a178
[ 86.027848][ C1] RDX: 0000000020000068 RSI: ffffffff84a0227c RDI: 0000000100000347
[ 86.035799][ C1] RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000060
[ 86.043794][ C1] R10: fffffbfff1852715 R11: ffffffff8c2938af R12: 0000000000000000
[ 86.051790][ C1] R13: ffff888094d30b40 R14: ffff88809469a178 R15: 0000000000000060
[ 86.059763][ C1] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
[ 86.068680][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 86.075237][ C1] CR2: 00000000200000d0 CR3: 0000000090657000 CR4: 00000000001406e0
[ 86.083187][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 86.091137][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 86.099081][ C1] Call Trace:
[ 86.102336][ C1]
[ 86.105166][ C1] ? neigh_resolve_output+0x3c8/0x930
[ 86.110521][ C1] ? ipvlan_get_iflink+0x70/0x70
[ 86.115434][ C1] neigh_resolve_output+0x4fd/0x930
[ 86.120614][ C1] ip6_finish_output2+0x1091/0x25b0
[ 86.125786][ C1] ? find_held_lock+0x2d/0x110
[ 86.130524][ C1] ? ip6_sk_dst_lookup_flow+0xa90/0xa90
[ 86.136055][ C1] ? lock_downgrade+0x7f0/0x7f0
[ 86.140882][ C1] ? rcu_read_lock_held_common+0x130/0x130
[ 86.146667][ C1] ? __ip6_finish_output+0x442/0xab0
[ 86.151929][ C1] __ip6_finish_output+0x442/0xab0
[ 86.157016][ C1] ip6_finish_output+0x34/0x1f0
[ 86.161852][ C1] ip6_output+0x239/0x810
[ 86.166158][ C1] ? ip6_finish_output+0x1f0/0x1f0
[ 86.171246][ C1] ? mark_held_locks+0x9f/0xe0
[ 86.175986][ C1] ? __ip6_finish_output+0xab0/0xab0
[ 86.181251][ C1] mld_sendpack+0x961/0xdf0
[ 86.185989][ C1] ? mld_send_initial_cr.part.0+0xf5/0x150
[ 86.191775][ C1] ? nf_hook.constprop.0+0x520/0x520
[ 86.197036][ C1] ? mark_held_locks+0x9f/0xe0
[ 86.201773][ C1] ? __local_bh_enable_ip+0x159/0x270
[ 86.207120][ C1] mld_send_initial_cr.part.0+0x107/0x150
[ 86.212813][ C1] mld_dad_timer_expire+0x3c/0x210
[ 86.217907][ C1] call_timer_fn+0x195/0x760
[ 86.222482][ C1] ? mld_send_initial_cr.part.0+0x150/0x150
[ 86.228361][ C1] ? timer_fixup_init+0x60/0x60
[ 86.233202][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 86.238737][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 86.244699][ C1] ? _raw_spin_unlock_irq+0x1f/0x80
[ 86.249906][ C1] ? mld_send_initial_cr.part.0+0x150/0x150
[ 86.255778][ C1] run_timer_softirq+0x623/0x1600
[ 86.260784][ C1] ? add_timer+0x830/0x830
[ 86.265181][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 86.270702][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 86.276663][ C1] __do_softirq+0x26c/0x99d
[ 86.281165][ C1] irq_exit+0x192/0x1d0
[ 86.285300][ C1] smp_apic_timer_interrupt+0x19e/0x600
[ 86.290926][ C1] apic_timer_interrupt+0xf/0x20
[ 86.295837][ C1]
[ 86.298791][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 86.304136][ C1] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d e4 35 65 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d d4 35 65 00 fb f4 cc 41 56 41 55 41 54 55 53 e8 f3 25 9d f9 e8 8e f7 cf fb 0f 1f
[ 86.323757][ C1] RSP: 0018:ffffc90000d3fdb8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 86.332177][ C1] RAX: 1ffffffff132790a RBX: ffff8880a9634340 RCX: 0000000000000000
[ 86.340136][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a9634bdc
[ 86.348102][ C1] RBP: dffffc0000000000 R08: ffff8880a9634340 R09: 0000000000000000
[ 86.356063][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffffed10152c6868
[ 86.364026][ C1] R13: 0000000000000001 R14: ffffffff8a862140 R15: 0000000000000000
[ 86.372024][ C1] default_idle+0x49/0x350
[ 86.376433][ C1] do_idle+0x393/0x690
[ 86.380490][ C1] ? __wake_up_common+0x147/0x650
[ 86.385498][ C1] ? arch_cpu_idle_exit+0x70/0x70
[ 86.390514][ C1] ? _raw_spin_unlock_irqrestore+0x62/0xe0
[ 86.396317][ C1] ? lockdep_hardirqs_on+0x417/0x5d0
[ 86.401594][ C1] cpu_startup_entry+0x14/0x20
[ 86.406347][ C1] start_secondary+0x2f3/0x400
[ 86.411110][ C1] ? set_cpu_sibling_map+0x1ed0/0x1ed0
[ 86.416552][ C1] secondary_startup_64+0xa4/0xb0
[ 86.421588][ C1] Modules linked in:
[ 86.425504][ C1] ---[ end trace d098a9fa3dac0906 ]---
[ 86.430961][ C1] RIP: 0010:ipvlan_hard_header+0x114/0x150
[ 86.436839][ C1] Code: 5c 41 5d 41 5e 41 5f c3 45 31 e4 eb e4 e8 04 73 d2 fc 48 8d bd 48 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 2d 4c 8b a5 48 03 00 00 e9 32 ff ff ff e8 75 93 0f
[ 86.456451][ C1] RSP: 0018:ffffc90000da8810 EFLAGS: 00010203
[ 86.462520][ C1] RAX: dffffc0000000000 RBX: ffff88809469a000 RCX: ffff88809469a178
[ 86.470531][ C1] RDX: 0000000020000068 RSI: ffffffff84a0227c RDI: 0000000100000347
[ 86.478506][ C1] RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000060
[ 86.486472][ C1] R10: fffffbfff1852715 R11: ffffffff8c2938af R12: 0000000000000000
[ 86.494441][ C1] R13: ffff888094d30b40 R14: ffff88809469a178 R15: 0000000000000060
[ 86.502411][ C1] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
[ 86.511373][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 86.517967][ C1] CR2: 00000000200000d0 CR3: 0000000090657000 CR4: 00000000001406e0
[ 86.525935][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 86.533916][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 86.541885][ C1] Kernel panic - not syncing: Fatal exception in interrupt
[ 86.550330][ C1] Kernel Offset: disabled
[ 86.554775][ C1] Rebooting in 86400 seconds..