[ 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 '10.128.0.131' (ECDSA) to the list of known hosts. 2020/06/04 11:50:27 parsed 1 programs 2020/06/04 11:50:27 executed programs: 0 syzkaller login: [ 120.491331][ T6882] IPVS: ftp: loaded support on port[0] = 21 [ 120.588184][ T6882] chnl_net:caif_netlink_parms(): no params data found [ 120.644691][ T6882] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.652989][ T6882] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.662983][ T6882] device bridge_slave_0 entered promiscuous mode [ 120.672919][ T6882] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.680719][ T6882] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.689208][ T6882] device bridge_slave_1 entered promiscuous mode [ 120.711465][ T6882] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 120.722735][ T6882] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 120.749802][ T6882] team0: Port device team_slave_0 added [ 120.758008][ T6882] team0: Port device team_slave_1 added [ 120.777352][ T6882] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 120.784702][ T6882] 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. [ 120.811785][ T6882] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 120.825523][ T6882] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 120.832488][ T6882] 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. [ 120.860098][ T6882] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 120.936970][ T6882] device hsr_slave_0 entered promiscuous mode [ 120.993612][ T6882] device hsr_slave_1 entered promiscuous mode [ 121.127992][ T6882] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 121.176192][ T6882] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 121.226007][ T6882] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 121.285884][ T6882] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 121.369945][ T6882] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.378929][ T6882] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.388556][ T6882] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.396356][ T6882] bridge0: port 1(bridge_slave_0) entered forwarding state [ 121.447587][ T6882] 8021q: adding VLAN 0 to HW filter on device bond0 [ 121.462441][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 121.474858][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 121.484035][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.492159][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 121.507738][ T6882] 8021q: adding VLAN 0 to HW filter on device team0 [ 121.519066][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 121.528758][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.536209][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 121.549955][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 121.560315][ T2767] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.567575][ T2767] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.583204][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 121.592023][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 121.615269][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 121.625535][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 121.635253][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 121.647464][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 121.657042][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 121.668477][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 121.677746][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 121.687497][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 121.698738][ T6882] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 121.710700][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 121.731036][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 121.738989][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 121.754597][ T6882] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 121.775401][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 121.785026][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 121.805762][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 121.815393][ T2767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 121.826523][ T6882] device veth0_vlan entered promiscuous mode [ 121.834218][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 121.842048][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 121.858041][ T6882] device veth1_vlan entered promiscuous mode [ 121.881265][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 121.890071][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 121.898914][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 121.908148][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 121.921519][ T6882] device veth0_macvtap entered promiscuous mode [ 121.932652][ T6882] device veth1_macvtap entered promiscuous mode [ 121.952464][ T6882] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 121.960606][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 121.970533][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 121.979605][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 121.990594][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 122.005029][ T6882] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 122.013307][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 122.022078][ T2769] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 122.235215][ C1] hrtimer: interrupt took 32003 ns [ 122.249078][ T7091] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. 2020/06/04 11:50:32 executed programs: 23 2020/06/04 11:50:37 executed programs: 61 2020/06/04 11:50:42 executed programs: 99 [ 138.445830][ T8406] general protection fault, probably for non-canonical address 0xdffffc000000002a: 0000 [#1] PREEMPT SMP KASAN [ 138.457771][ T8406] KASAN: null-ptr-deref in range [0x0000000000000150-0x0000000000000157] [ 138.466187][ T8406] CPU: 1 PID: 8406 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 138.474480][ T8406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.484588][ T8406] RIP: 0010:__lock_acquire+0xe1b/0x4a70 [ 138.490106][ T8406] Code: 91 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 4b 9a 91 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 57 2e 00 00 49 81 3a c0 74 c0 8b 0f 84 b0 f2 ff [ 138.509785][ T8406] RSP: 0018:ffffc9000419f7b8 EFLAGS: 00010002 [ 138.515826][ T8406] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 138.523862][ T8406] RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150 [ 138.531810][ T8406] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 138.539775][ T8406] R10: 0000000000000150 R11: 0000000000000001 R12: 0000000000000000 [ 138.547728][ T8406] R13: ffff8880a883c040 R14: 0000000000000000 R15: 0000000000000000 [ 138.555690][ T8406] FS: 00007fb1294b3700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 138.564599][ T8406] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 138.572113][ T8406] CR2: 00007f9538980710 CR3: 0000000094b43000 CR4: 00000000001426e0 [ 138.580148][ T8406] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 138.588192][ T8406] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 138.596146][ T8406] Call Trace: [ 138.599430][ T8406] ? __lock_acquire+0x2226/0x4a70 [ 138.604454][ T8406] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 138.610420][ T8406] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 138.616375][ T8406] lock_acquire+0x1f2/0x8f0 [ 138.620852][ T8406] ? start_creating+0xa8/0x250 [ 138.625589][ T8406] ? lock_release+0x800/0x800 [ 138.630238][ T8406] ? find_held_lock+0x2d/0x110 [ 138.634977][ T8406] ? simple_pin_fs+0x8f/0x190 [ 138.639631][ T8406] down_write+0x8d/0x150 [ 138.643855][ T8406] ? start_creating+0xa8/0x250 [ 138.648740][ T8406] ? __down_timeout+0x2d0/0x2d0 [ 138.653570][ T8406] ? do_raw_spin_unlock+0x171/0x260 [ 138.658762][ T8406] ? mntput+0xc/0x90 [ 138.662659][ T8406] start_creating+0xa8/0x250 [ 138.667314][ T8406] __debugfs_create_file+0x62/0x400 [ 138.672497][ T8406] kvm_arch_create_vcpu_debugfs+0x9f/0x200 [ 138.678292][ T8406] kvm_vm_ioctl+0x1c0b/0x2440 [ 138.683028][ T8406] ? kvm_unregister_device_ops+0x60/0x60 [ 138.688647][ T8406] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 138.694091][ T8406] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 138.700056][ T8406] ? retint_kernel+0x2b/0x2b [ 138.704631][ T8406] ? trace_hardirqs_on_caller+0x64/0x240 [ 138.710389][ T8406] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 138.715881][ T8406] ? __this_cpu_preempt_check+0x84/0x190 [ 138.721557][ T8406] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 138.727374][ T8406] ? retint_kernel+0x2b/0x2b [ 138.731960][ T8406] ? do_vfs_ioctl+0x1295/0x1360 [ 138.736813][ T8406] ? do_vfs_ioctl+0xa9a/0x1360 [ 138.741574][ T8406] ? do_vfs_ioctl+0x50c/0x1360 [ 138.746331][ T8406] ? ioctl_file_clone+0x180/0x180 [ 138.751346][ T8406] ? __fget_files+0x32f/0x500 [ 138.756004][ T8406] ? ksys_dup3+0x3c0/0x3c0 [ 138.760395][ T8406] ? __x64_sys_futex+0x380/0x4f0 [ 138.765326][ T8406] ? kvm_unregister_device_ops+0x60/0x60 [ 138.770935][ T8406] ksys_ioctl+0x11a/0x180 [ 138.775257][ T8406] __x64_sys_ioctl+0x6f/0xb0 [ 138.779836][ T8406] do_syscall_64+0xf6/0x7d0 [ 138.784332][ T8406] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 138.790198][ T8406] RIP: 0033:0x45ca69 [ 138.794066][ T8406] Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 138.813658][ T8406] RSP: 002b:00007fb1294b2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 138.822040][ T8406] RAX: ffffffffffffffda RBX: 00000000004e7400 RCX: 000000000045ca69 [ 138.830000][ T8406] RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000005 [ 138.837945][ T8406] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 138.847020][ T8406] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 138.854967][ T8406] R13: 0000000000000396 R14: 00000000004c6306 R15: 00007fb1294b36d4 [ 138.862949][ T8406] Modules linked in: [ 138.867353][ T8406] ---[ end trace ac876eff69a35314 ]--- [ 138.872797][ T8406] RIP: 0010:__lock_acquire+0xe1b/0x4a70 [ 138.878318][ T8406] Code: 91 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 4b 9a 91 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 57 2e 00 00 49 81 3a c0 74 c0 8b 0f 84 b0 f2 ff [ 138.898359][ T8406] RSP: 0018:ffffc9000419f7b8 EFLAGS: 00010002 [ 138.904405][ T8406] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 138.912352][ T8406] RDX: 000000000000002a RSI: 0000000000000000 RDI: 0000000000000150 [ 138.920319][ T8406] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 138.928294][ T8406] R10: 0000000000000150 R11: 0000000000000001 R12: 0000000000000000 [ 138.936247][ T8406] R13: ffff8880a883c040 R14: 0000000000000000 R15: 0000000000000000 [ 138.944199][ T8406] FS: 00007fb1294b3700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 138.953120][ T8406] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 138.959681][ T8406] CR2: 00007f9538980710 CR3: 0000000094b43000 CR4: 00000000001426e0 [ 138.967650][ T8406] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 138.975607][ T8406] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 138.983554][ T8406] Kernel panic - not syncing: Fatal exception [ 138.990326][ T8406] Kernel Offset: disabled [ 138.994639][ T8406] Rebooting in 86400 seconds..