Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts. 2020/07/11 13:03:20 parsed 1 programs 2020/07/11 13:03:21 executed programs: 0 syzkaller login: [ 59.379089][ T6892] IPVS: ftp: loaded support on port[0] = 21 [ 59.474086][ T6892] chnl_net:caif_netlink_parms(): no params data found [ 59.521025][ T6892] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.529933][ T6892] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.539960][ T6892] device bridge_slave_0 entered promiscuous mode [ 59.549606][ T6892] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.557866][ T6892] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.567241][ T6892] device bridge_slave_1 entered promiscuous mode [ 59.586611][ T6892] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.597420][ T6892] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.620492][ T6892] team0: Port device team_slave_0 added [ 59.629095][ T6892] team0: Port device team_slave_1 added [ 59.646225][ T6892] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.653193][ T6892] 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. [ 59.679300][ T6892] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.692231][ T6892] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.699788][ T6892] 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. [ 59.726073][ T6892] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.787896][ T6892] device hsr_slave_0 entered promiscuous mode [ 59.825935][ T6892] device hsr_slave_1 entered promiscuous mode [ 59.969422][ T6892] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.027830][ T6892] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.087454][ T6892] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.126596][ T6892] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.190930][ T6892] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.198105][ T6892] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.206090][ T6892] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.213162][ T6892] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.258343][ T6892] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.272098][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.282071][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.290490][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.298986][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 60.311578][ T6892] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.322948][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.332056][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.339188][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.357086][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.365998][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.373029][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.392881][ T3798] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.401609][ T3798] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.420735][ T6892] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.431595][ T6892] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.444269][ T3798] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.452953][ T3798] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.462584][ T3798] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.472558][ T3798] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.491654][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.500310][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.522340][ T6892] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.548339][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 60.557460][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.579235][ T6892] device veth0_vlan entered promiscuous mode [ 60.586024][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 60.594249][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.606066][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.614839][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.628043][ T6892] device veth1_vlan entered promiscuous mode [ 60.650378][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.659105][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.667968][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.676964][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.688518][ T6892] device veth0_macvtap entered promiscuous mode [ 60.699290][ T6892] device veth1_macvtap entered promiscuous mode [ 60.718281][ T6892] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.725983][ T2757] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.734116][ T2757] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.743508][ T2757] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.753291][ T2757] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.766915][ T6892] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.774680][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.783219][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 61.340934][ T0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 61.340945][ T0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 61.340958][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc4-next-20200710-syzkaller #0 [ 61.340966][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.340986][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 61.341000][ 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 [ 61.341007][ T0] RSP: 0018:ffffffff89a07ce8 EFLAGS: 00010046 [ 61.341018][ T0] RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 [ 61.341026][ T0] RDX: 1ffff11015cc6bc2 RSI: ffff88808ba70580 RDI: ffffffff89a86580 [ 61.341034][ T0] RBP: ffffffff89a07db8 R08: 0000000000000001 R09: ffffffff89a86e50 [ 61.341042][ T0] R10: fffffbfff155eb51 R11: 0000000000000000 R12: ffff8880ae635e00 [ 61.341051][ T0] R13: ffffffff89a86580 R14: ffff88808ba70580 R15: ffffffff89a869b0 [ 61.341062][ T0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 61.341070][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.341078][ T0] CR2: 000055f41b59f520 CR3: 00000000a6fab000 CR4: 00000000001506f0 [ 61.341089][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.341096][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.341100][ T0] Call Trace: [ 61.341117][ T0] __schedule+0x8b4/0x1e80 [ 61.341134][ T0] ? io_schedule_timeout+0x140/0x140 [ 61.341150][ T0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.341163][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 61.341182][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 61.341196][ T0] schedule_idle+0x53/0x90 [ 61.341210][ T0] do_idle+0x323/0x6d0 [ 61.341226][ T0] ? arch_cpu_idle_exit+0x70/0x70 [ 61.341245][ T0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 61.341260][ T0] cpu_startup_entry+0x14/0x20 [ 61.341271][ T0] start_kernel+0x9cb/0xa06 [ 61.341285][ T0] ? mem_encrypt_init+0x5/0x5 [ 61.341300][ T0] ? x86_cpuid_vendor+0x84/0x90 [ 61.341313][ T0] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 61.341327][ T0] ? load_ucode_bsp+0x1b7/0x1f7 [ 61.341342][ T0] secondary_startup_64+0xa4/0xb0 [ 61.341352][ T0] Modules linked in: [ 61.341369][ T0] ---[ end trace a6f193e66b8ac538 ]--- [ 61.341384][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 61.341396][ 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 [ 61.341403][ T0] RSP: 0018:ffffffff89a07ce8 EFLAGS: 00010046 [ 61.341414][ T0] RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000 [ 61.341422][ T0] RDX: 1ffff11015cc6bc2 RSI: ffff88808ba70580 RDI: ffffffff89a86580 [ 61.341430][ T0] RBP: ffffffff89a07db8 R08: 0000000000000001 R09: ffffffff89a86e50 [ 61.341438][ T0] R10: fffffbfff155eb51 R11: 0000000000000000 R12: ffff8880ae635e00 [ 61.341449][ T0] R13: ffffffff89a86580 R14: ffff88808ba70580 R15: ffffffff89a869b0 [ 61.341460][ T0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 61.341468][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.341476][ T0] CR2: 000055f41b59f520 CR3: 00000000a6fab000 CR4: 00000000001506f0 [ 61.341486][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.341493][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.341499][ T0] Kernel panic - not syncing: Fatal exception [ 61.342628][ T0] Kernel Offset: disabled [ 61.706852][ T0] Rebooting in 86400 seconds..