[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.84' (ECDSA) to the list of known hosts. 2020/07/17 17:50:59 parsed 1 programs 2020/07/17 17:50:59 executed programs: 0 syzkaller login: [ 71.002279][ T6839] IPVS: ftp: loaded support on port[0] = 21 [ 71.097332][ T6839] chnl_net:caif_netlink_parms(): no params data found [ 71.149650][ T6839] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.158358][ T6839] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.167448][ T6839] device bridge_slave_0 entered promiscuous mode [ 71.177512][ T6839] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.184602][ T6839] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.192926][ T6839] device bridge_slave_1 entered promiscuous mode [ 71.213458][ T6839] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.224399][ T6839] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.247153][ T6839] team0: Port device team_slave_0 added [ 71.254437][ T6839] team0: Port device team_slave_1 added [ 71.273488][ T6839] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.280590][ T6839] 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. [ 71.306569][ T6839] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.318904][ T6839] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.326822][ T6839] 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. [ 71.352936][ T6839] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.418134][ T6839] device hsr_slave_0 entered promiscuous mode [ 71.475687][ T6839] device hsr_slave_1 entered promiscuous mode [ 71.605717][ T6839] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.658086][ T6839] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.717767][ T6839] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.768210][ T6839] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.841748][ T6839] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.848976][ T6839] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.856981][ T6839] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.864057][ T6839] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.910915][ T6839] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.924712][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.935428][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.943353][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.952535][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.966959][ T6839] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.978267][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.987475][ T3845] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.994518][ T3845] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.018595][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.027669][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.034727][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.043401][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.052580][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.066475][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.081328][ T6839] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 72.092161][ T6839] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 72.104683][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.114663][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.123662][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.132229][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.141175][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.164075][ T6839] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.171314][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.179510][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.203301][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.212341][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.232524][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.242126][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.253280][ T6839] device veth0_vlan entered promiscuous mode [ 72.260329][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.268914][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.281669][ T6839] device veth1_vlan entered promiscuous mode [ 72.302967][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.311250][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.319471][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.328258][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.341186][ T6839] device veth0_macvtap entered promiscuous mode [ 72.351323][ T6839] device veth1_macvtap entered promiscuous mode [ 72.368932][ T6839] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.376416][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.384568][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.393125][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.401814][ T3845] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.414830][ T6839] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.422391][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.432173][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.902078][ T0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 72.902089][ T0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 72.902102][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc5-syzkaller #0 [ 72.902109][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.902129][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 72.902142][ T0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 72.902149][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 72.902160][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 72.902168][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff8880a0342180 RDI: ffff8880a9632340 [ 72.902206][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9632c08 [ 72.902214][ T0] R10: fffffbfff155d939 R11: 0000000000000000 R12: ffff8880ae735e00 [ 72.902222][ T0] R13: ffff8880a9632340 R14: ffff8880a0342180 R15: ffff8880a9632770 [ 72.902233][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 72.902242][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.902250][ T0] CR2: 0000000000000000 CR3: 00000000a651f000 CR4: 00000000001406e0 [ 72.902260][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.902268][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.902272][ T0] Call Trace: [ 72.902289][ T0] __schedule+0x8e1/0x1eb0 [ 72.902307][ T0] ? io_schedule_timeout+0x140/0x140 [ 72.902322][ T0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.902334][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 72.902345][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 72.902360][ T0] schedule_idle+0x53/0x90 [ 72.902374][ T0] do_idle+0x323/0x6d0 [ 72.902388][ T0] ? arch_cpu_idle_exit+0x70/0x70 [ 72.902400][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 72.902411][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 72.902426][ T0] cpu_startup_entry+0x14/0x20 [ 72.902439][ T0] start_secondary+0x2b3/0x370 [ 72.902453][ T0] ? set_cpu_sibling_map+0x1e80/0x1e80 [ 72.902470][ T0] secondary_startup_64+0xa4/0xb0 [ 72.902480][ T0] Modules linked in: [ 72.902497][ T0] ---[ end trace a441096a86a9167e ]--- [ 72.902511][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 72.902522][ T0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 72.902529][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 72.902539][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 72.902547][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff8880a0342180 RDI: ffff8880a9632340 [ 72.902555][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9632c08 [ 72.902563][ T0] R10: fffffbfff155d939 R11: 0000000000000000 R12: ffff8880ae735e00 [ 72.902571][ T0] R13: ffff8880a9632340 R14: ffff8880a0342180 R15: ffff8880a9632770 [ 72.902581][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 72.902589][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.902597][ T0] CR2: 0000000000000000 CR3: 00000000a651f000 CR4: 00000000001406e0 [ 72.902604][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.902612][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.902618][ T0] Kernel panic - not syncing: Fatal exception [ 72.903640][ T0] Kernel Offset: disabled [ 73.254052][ T0] Rebooting in 86400 seconds..