[ 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 '10.128.0.4' (ECDSA) to the list of known hosts. 2020/07/17 18:17:26 parsed 1 programs 2020/07/17 18:17:26 executed programs: 0 syzkaller login: [ 56.615413][ T6867] IPVS: ftp: loaded support on port[0] = 21 [ 56.707891][ T6867] chnl_net:caif_netlink_parms(): no params data found [ 56.759883][ T6867] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.767847][ T6867] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.776776][ T6867] device bridge_slave_0 entered promiscuous mode [ 56.785845][ T6867] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.792959][ T6867] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.801288][ T6867] device bridge_slave_1 entered promiscuous mode [ 56.821865][ T6867] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.832783][ T6867] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.854983][ T6867] team0: Port device team_slave_0 added [ 56.862273][ T6867] team0: Port device team_slave_1 added [ 56.880569][ T6867] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.887645][ T6867] 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. [ 56.913593][ T6867] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.925930][ T6867] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.932872][ T6867] 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. [ 56.958814][ T6867] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.037402][ T6867] device hsr_slave_0 entered promiscuous mode [ 57.083921][ T6867] device hsr_slave_1 entered promiscuous mode [ 57.208204][ T6867] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.256616][ T6867] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.316050][ T6867] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.356072][ T6867] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.422003][ T6867] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.429297][ T6867] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.437342][ T6867] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.444515][ T6867] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.488797][ T6867] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.504034][ T2558] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.516242][ T2558] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.524721][ T2558] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.534896][ T2558] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.548337][ T6867] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.559146][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.568936][ T2583] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.576117][ T2583] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.594659][ T2558] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.603006][ T2558] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.610120][ T2558] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.622460][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.631208][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.643276][ T2558] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.660476][ T6867] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.671843][ T6867] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.686362][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.695216][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.703839][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.721663][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.729686][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.744716][ T6867] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.764632][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 57.773277][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.797917][ T2558] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 57.806998][ T2558] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.817379][ T6867] device veth0_vlan entered promiscuous mode [ 57.825472][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.834090][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.849433][ T6867] device veth1_vlan entered promiscuous mode [ 57.871221][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.880201][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.888646][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.897763][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.908985][ T6867] device veth0_macvtap entered promiscuous mode [ 57.919887][ T6867] device veth1_macvtap entered promiscuous mode [ 57.936464][ T6867] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.944926][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.953052][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.961405][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.970320][ T2568] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.984479][ T6867] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.991783][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.002405][ T2583] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.513579][ T0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 58.513590][ T0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 58.513602][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc5-syzkaller #0 [ 58.513609][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.513627][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 58.513639][ 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 [ 58.513646][ T0] RSP: 0018:ffffffff89a07ce8 EFLAGS: 00010046 [ 58.513689][ T0] RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 [ 58.513697][ T0] RDX: 1ffff11015cc6bc2 RSI: ffff88809554c1c0 RDI: ffffffff89a86580 [ 58.513704][ T0] RBP: ffffffff89a07db8 R08: 0000000000000001 R09: ffffffff89a86e48 [ 58.513711][ T0] R10: fffffbfff155d939 R11: 0000000000000000 R12: ffff8880ae635e00 [ 58.513719][ T0] R13: ffffffff89a86580 R14: ffff88809554c1c0 R15: ffffffff89a869b0 [ 58.513729][ T0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 58.513736][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.513743][ T0] CR2: 000000000819b000 CR3: 00000000a0094000 CR4: 00000000001406f0 [ 58.513752][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.513759][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.513762][ T0] Call Trace: [ 58.513779][ T0] __schedule+0x8e1/0x1eb0 [ 58.513795][ T0] ? io_schedule_timeout+0x140/0x140 [ 58.513809][ T0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.513821][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 58.513831][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 58.513845][ T0] schedule_idle+0x53/0x90 [ 58.513857][ T0] do_idle+0x323/0x6d0 [ 58.513871][ T0] ? arch_cpu_idle_exit+0x70/0x70 [ 58.513886][ T0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 58.513898][ T0] cpu_startup_entry+0x14/0x20 [ 58.513909][ T0] start_kernel+0x9cb/0xa06 [ 58.513920][ T0] ? mem_encrypt_init+0x5/0x5 [ 58.513934][ T0] ? x86_cpuid_vendor+0x84/0x90 [ 58.513948][ T0] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 58.513962][ T0] ? load_ucode_bsp+0x1b7/0x1f7 [ 58.513976][ T0] secondary_startup_64+0xa4/0xb0 [ 58.513985][ T0] Modules linked in: [ 58.514000][ T0] ---[ end trace ec7684c678c222c0 ]--- [ 58.514013][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 58.514024][ 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 [ 58.514030][ T0] RSP: 0018:ffffffff89a07ce8 EFLAGS: 00010046 [ 58.514039][ T0] RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 [ 58.514047][ T0] RDX: 1ffff11015cc6bc2 RSI: ffff88809554c1c0 RDI: ffffffff89a86580 [ 58.514054][ T0] RBP: ffffffff89a07db8 R08: 0000000000000001 R09: ffffffff89a86e48 [ 58.514061][ T0] R10: fffffbfff155d939 R11: 0000000000000000 R12: ffff8880ae635e00 [ 58.514068][ T0] R13: ffffffff89a86580 R14: ffff88809554c1c0 R15: ffffffff89a869b0 [ 58.514077][ T0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 58.514084][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.514091][ T0] CR2: 000000000819b000 CR3: 00000000a0094000 CR4: 00000000001406f0 [ 58.514098][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.514104][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.514110][ T0] Kernel panic - not syncing: Fatal exception [ 58.515346][ T0] Kernel Offset: disabled [ 58.875418][ T0] Rebooting in 86400 seconds..