[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.148' (ECDSA) to the list of known hosts. syzkaller login: [ 60.891093][ T6860] IPVS: ftp: loaded support on port[0] = 21 [ 60.986549][ T6860] chnl_net:caif_netlink_parms(): no params data found [ 61.042551][ T6860] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.050060][ T6860] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.059297][ T6860] device bridge_slave_0 entered promiscuous mode [ 61.069292][ T6860] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.077255][ T6860] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.086003][ T6860] device bridge_slave_1 entered promiscuous mode [ 61.106801][ T6860] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.117843][ T6860] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.140852][ T6860] team0: Port device team_slave_0 added [ 61.148222][ T6860] team0: Port device team_slave_1 added [ 61.166799][ T6860] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.173810][ T6860] 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. [ 61.199764][ T6860] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.212504][ T6860] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.219447][ T6860] 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. [ 61.245532][ T6860] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.273034][ T6860] device hsr_slave_0 entered promiscuous mode [ 61.279892][ T6860] device hsr_slave_1 entered promiscuous mode [ 61.423764][ T6860] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.434302][ T6860] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.444114][ T6860] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.454568][ T6860] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.478154][ T6860] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.485328][ T6860] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.493131][ T6860] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.500280][ T6860] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.545152][ T6860] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.558184][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.569873][ T26] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.578400][ T26] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.586645][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 61.600798][ T6860] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.613582][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.622458][ T3103] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.629505][ T3103] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.652006][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.660837][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.667901][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.676730][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.696888][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.705365][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.714265][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.723159][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.734773][ T6860] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.752642][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.761239][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.775507][ T6860] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.794577][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.814881][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.823620][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.832380][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.844285][ T6860] device veth0_vlan entered promiscuous mode [ 61.855772][ T6860] device veth1_vlan entered promiscuous mode [ 61.878642][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.887257][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.895922][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.906957][ T6860] device veth0_macvtap entered promiscuous mode [ 61.917641][ T6860] device veth1_macvtap entered promiscuous mode [ 61.935893][ T6860] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.943363][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.954289][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.966225][ T6860] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.974579][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.984119][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 61.994937][ T6860] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.004815][ T6860] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.014057][ T6860] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.023204][ T6860] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 62.118659][ T7082] IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE [ 62.126050][ T7082] IPv6: NLM_F_CREATE should be set when creating new route [ 62.133329][ T7082] IPv6: NLM_F_CREATE should be set when creating new route [ 62.140675][ T7082] general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN [ 62.152390][ T7082] KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087] [ 62.160812][ T7082] CPU: 1 PID: 7082 Comm: syz-executor140 Not tainted 5.9.0-rc1-syzkaller #0 [ 62.169475][ T7082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.179546][ T7082] RIP: 0010:rt6_fill_node+0x1396/0x2940 [ 62.185111][ T7082] Code: 3c 02 00 0f 85 ef 14 00 00 4d 8b 6d 10 e8 82 c8 86 fa 49 8d bd 80 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 10 15 00 00 4d 8b ad 80 00 00 00 e8 34 09 06 01 [ 62.204702][ T7082] RSP: 0018:ffffc900066e72b0 EFLAGS: 00010202 [ 62.210754][ T7082] RAX: dffffc0000000000 RBX: ffff88809f3a0800 RCX: ffffffff86ed7656 [ 62.218709][ T7082] RDX: 0000000000000010 RSI: ffffffff86ed768e RDI: 0000000000000080 [ 62.226681][ T7082] RBP: ffffc900066e73e8 R08: 0000000000000001 R09: ffff88809f3a0847 [ 62.234632][ T7082] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880943d40c0 [ 62.242685][ T7082] R13: 0000000000000000 R14: ffff8880a8296d00 R15: 0000000000000000 [ 62.250645][ T7082] FS: 00000000016b8880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 62.259555][ T7082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.266119][ T7082] CR2: 0000000020000300 CR3: 00000000a8b7e000 CR4: 00000000001506e0 [ 62.274074][ T7082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.282029][ T7082] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.289982][ T7082] Call Trace: [ 62.293258][ T7082] ? __find_rr_leaf+0xd10/0xd10 [ 62.298102][ T7082] ? kmem_cache_alloc_node_trace+0x39f/0x400 [ 62.304079][ T7082] ? kasan_unpoison_shadow+0x33/0x40 [ 62.309354][ T7082] ? __phys_addr+0x9a/0x110 [ 62.313840][ T7082] ? memset+0x20/0x40 [ 62.317799][ T7082] inet6_rt_notify+0x14c/0x2b0 [ 62.322544][ T7082] fib6_add+0x2840/0x3ed0 [ 62.326857][ T7082] ? fib6_update_sernum_stub+0x80/0x80 [ 62.332298][ T7082] ? do_raw_spin_lock+0x120/0x2b0 [ 62.337320][ T7082] ip6_route_add+0x8b/0x150 [ 62.341808][ T7082] inet6_rtm_newroute+0x152/0x160 [ 62.346816][ T7082] ? ip6_route_multipath_add+0x1ee0/0x1ee0 [ 62.352598][ T7082] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 62.357946][ T7082] ? lock_is_held_type+0xbb/0xf0 [ 62.362872][ T7082] ? ip6_route_multipath_add+0x1ee0/0x1ee0 [ 62.368659][ T7082] rtnetlink_rcv_msg+0x44e/0xad0 [ 62.373604][ T7082] ? rtnetlink_put_metrics+0x510/0x510 [ 62.379043][ T7082] ? do_raw_spin_unlock+0x171/0x230 [ 62.384231][ T7082] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 62.389496][ T7082] netlink_rcv_skb+0x15a/0x430 [ 62.394254][ T7082] ? rtnetlink_put_metrics+0x510/0x510 [ 62.399704][ T7082] ? netlink_ack+0xa10/0xa10 [ 62.404274][ T7082] netlink_unicast+0x533/0x7d0 [ 62.409027][ T7082] ? netlink_attachskb+0x810/0x810 [ 62.414118][ T7082] ? _copy_from_iter_full+0x247/0x890 [ 62.419480][ T7082] ? __phys_addr+0x9a/0x110 [ 62.423959][ T7082] ? __phys_addr_symbol+0x2c/0x70 [ 62.428957][ T7082] ? __check_object_size+0x171/0x3e4 [ 62.434219][ T7082] netlink_sendmsg+0x856/0xd90 [ 62.438981][ T7082] ? netlink_unicast+0x7d0/0x7d0 [ 62.443919][ T7082] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 62.449196][ T7082] ? netlink_unicast+0x7d0/0x7d0 [ 62.454128][ T7082] sock_sendmsg+0xcf/0x120 [ 62.458610][ T7082] ____sys_sendmsg+0x6e8/0x810 [ 62.463359][ T7082] ? kernel_sendmsg+0x50/0x50 [ 62.468033][ T7082] ? do_recvmmsg+0x6d0/0x6d0 [ 62.472602][ T7082] ? __might_fault+0xef/0x1d0 [ 62.477273][ T7082] ? find_held_lock+0x2d/0x110 [ 62.482030][ T7082] ? __might_fault+0x11f/0x1d0 [ 62.486770][ T7082] ___sys_sendmsg+0xf3/0x170 [ 62.491356][ T7082] ? sendmsg_copy_msghdr+0x160/0x160 [ 62.496620][ T7082] ? __might_fault+0x190/0x1d0 [ 62.501363][ T7082] ? _copy_to_user+0x126/0x160 [ 62.506106][ T7082] ? sock_do_ioctl+0x168/0x2d0 [ 62.510848][ T7082] ? compat_ifr_data_ioctl+0x150/0x150 [ 62.516286][ T7082] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 62.522157][ T7082] ? __fget_light+0x215/0x280 [ 62.526811][ T7082] __sys_sendmsg+0xe5/0x1b0 [ 62.531298][ T7082] ? __sys_sendmsg_sock+0xb0/0xb0 [ 62.536322][ T7082] ? trace_hardirqs_on+0x5f/0x220 [ 62.541328][ T7082] ? lockdep_hardirqs_on+0x76/0xf0 [ 62.546428][ T7082] do_syscall_64+0x2d/0x70 [ 62.550825][ T7082] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.556700][ T7082] RIP: 0033:0x443ef9 [ 62.560579][ T7082] Code: e8 8c 07 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 bb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 62.580163][ T7082] RSP: 002b:00007ffc05a1f198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.588558][ T7082] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443ef9 [ 62.596532][ T7082] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 62.604490][ T7082] RBP: 00007ffc05a1f1a0 R08: 0000000000000000 R09: 0000000000000000 [ 62.612443][ T7082] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000f2a6 [ 62.620389][ T7082] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.628349][ T7082] Modules linked in: [ 62.632298][ T7082] ---[ end trace 1313b0178661d3c3 ]--- [ 62.637761][ T7082] RIP: 0010:rt6_fill_node+0x1396/0x2940 [ 62.643362][ T7082] Code: 3c 02 00 0f 85 ef 14 00 00 4d 8b 6d 10 e8 82 c8 86 fa 49 8d bd 80 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 10 15 00 00 4d 8b ad 80 00 00 00 e8 34 09 06 01 [ 62.663053][ T7082] RSP: 0018:ffffc900066e72b0 EFLAGS: 00010202 [ 62.669129][ T7082] RAX: dffffc0000000000 RBX: ffff88809f3a0800 RCX: ffffffff86ed7656 [ 62.677129][ T7082] RDX: 0000000000000010 RSI: ffffffff86ed768e RDI: 0000000000000080 [ 62.685139][ T7082] RBP: ffffc900066e73e8 R08: 0000000000000001 R09: ffff88809f3a0847 [ 62.693171][ T7082] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880943d40c0 [ 62.701178][ T7082] R13: 0000000000000000 R14: ffff8880a8296d00 R15: 0000000000000000 [ 62.709156][ T7082] FS: 00000000016b8880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 62.718125][ T7082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.724752][ T7082] CR2: 0000000020000300 CR3: 00000000a8b7e000 CR4: 00000000001506e0 [ 62.732759][ T7082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.740765][ T7082] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.748750][ T7082] Kernel panic - not syncing: Fatal exception in interrupt [ 62.757005][ T7082] Kernel Offset: disabled [ 62.761324][ T7082] Rebooting in 86400 seconds..