[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. syzkaller login: [ 72.609259][ T7008] IPVS: ftp: loaded support on port[0] = 21 [ 72.704305][ T7008] chnl_net:caif_netlink_parms(): no params data found [ 72.755688][ T7008] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.763635][ T7008] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.771506][ T7008] device bridge_slave_0 entered promiscuous mode [ 72.781600][ T7008] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.789385][ T7008] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.797449][ T7008] device bridge_slave_1 entered promiscuous mode [ 72.818453][ T7008] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.829747][ T7008] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.852317][ T7008] team0: Port device team_slave_0 added [ 72.860485][ T7008] team0: Port device team_slave_1 added [ 72.879550][ T7008] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.886605][ T7008] 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. [ 72.912601][ T7008] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.925472][ T7008] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.932524][ T7008] 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. [ 72.958638][ T7008] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.036460][ T7008] device hsr_slave_0 entered promiscuous mode [ 73.082838][ T7008] device hsr_slave_1 entered promiscuous mode [ 73.220952][ T7008] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.275386][ T7008] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.335322][ T7008] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.405159][ T7008] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.478035][ T7008] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.489166][ T7008] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.497301][ T7008] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.504582][ T7008] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.551611][ T7008] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.567864][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.578325][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.587083][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.596779][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.614218][ T7008] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.625951][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.634984][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.642030][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.664332][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.674416][ T25] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.681528][ T25] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.690747][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.704399][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.721269][ T7008] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.731850][ T7008] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.744810][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.754366][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.763868][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.773399][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.781990][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.790992][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.807684][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.821278][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.829849][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.842829][ T7008] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.861806][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.871605][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.893015][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.901425][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.910655][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.918707][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.929010][ T7008] device veth0_vlan entered promiscuous mode [ 73.941650][ T7008] device veth1_vlan entered promiscuous mode [ 73.964061][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.974092][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.982800][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.991240][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.002326][ T7008] device veth0_macvtap entered promiscuous mode [ 74.013734][ T7008] device veth1_macvtap entered promiscuous mode [ 74.031663][ T7008] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.039796][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.049199][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.058122][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.067683][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.080008][ T7008] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.089139][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.098231][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 74.259023][ T7008] netlink: 'syz-executor700': attribute type 1 has an invalid length. [ 74.267782][ T7008] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 74.279604][ T7008] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 74.288017][ T7008] CPU: 0 PID: 7008 Comm: syz-executor700 Not tainted 5.6.0-syzkaller #0 [ 74.296338][ T7008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.306385][ T7008] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 74.312187][ T7008] Code: fd 00 f0 ff ff 0f 87 23 03 00 00 e8 01 c5 d0 fc 48 8b 5c 24 38 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 1b 03 00 00 [ 74.331788][ T7008] RSP: 0018:ffffc90000eb7558 EFLAGS: 00010247 [ 74.337831][ T7008] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 74.345778][ T7008] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 74.353740][ T7008] RBP: ffff8880892c6000 R08: ffff888094bdc580 R09: ffffc90000eb7588 [ 74.361710][ T7008] R10: fffff520001d6eb3 R11: ffffc90000eb759f R12: 0000000000000000 [ 74.369664][ T7008] R13: ffff888218561100 R14: 1ffff920001d6eab R15: 0000000000000000 [ 74.377617][ T7008] FS: 0000000000bbb880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 74.386541][ T7008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.393120][ T7008] CR2: 00000000200000c0 CR3: 000000009fc18000 CR4: 00000000001406f0 [ 74.401154][ T7008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.409644][ T7008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.419082][ T7008] Call Trace: [ 74.422361][ T7008] ? macsec_add_txsa+0xf70/0xf70 [ 74.427275][ T7008] ? nla_memcpy+0xa0/0xa0 [ 74.432640][ T7008] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.438650][ T7008] ? cap_capable+0x1eb/0x250 [ 74.443240][ T7008] ? __nla_parse+0x2e/0x60 [ 74.447638][ T7008] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 74.453976][ T7008] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 74.460301][ T7008] genl_rcv_msg+0x627/0xdf0 [ 74.464793][ T7008] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 74.471102][ T7008] ? __dev_queue_xmit+0xbf2/0x30a0 [ 74.476902][ T7008] ? lock_release+0x800/0x800 [ 74.481657][ T7008] ? skb_splice_bits+0x1a0/0x1a0 [ 74.486672][ T7008] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 74.492463][ T7008] netlink_rcv_skb+0x15a/0x410 [ 74.497205][ T7008] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 74.503514][ T7008] ? netlink_ack+0xa10/0xa10 [ 74.508086][ T7008] genl_rcv+0x24/0x40 [ 74.512072][ T7008] netlink_unicast+0x537/0x740 [ 74.516825][ T7008] ? netlink_attachskb+0x810/0x810 [ 74.521921][ T7008] ? _copy_from_iter_full+0x25c/0x870 [ 74.527267][ T7008] ? __phys_addr_symbol+0x2c/0x70 [ 74.532545][ T7008] ? __check_object_size+0x171/0x437 [ 74.537813][ T7008] netlink_sendmsg+0x882/0xe10 [ 74.542583][ T7008] ? aa_af_perm+0x260/0x260 [ 74.547062][ T7008] ? netlink_unicast+0x740/0x740 [ 74.551977][ T7008] ? netlink_unicast+0x740/0x740 [ 74.556891][ T7008] sock_sendmsg+0xcf/0x120 [ 74.561280][ T7008] ____sys_sendmsg+0x6bf/0x7e0 [ 74.566024][ T7008] ? do_huge_pmd_anonymous_page+0xb65/0x1930 [ 74.572423][ T7008] ? kernel_sendmsg+0x50/0x50 [ 74.577202][ T7008] ? print_usage_bug+0x240/0x240 [ 74.582227][ T7008] ? lock_downgrade+0x840/0x840 [ 74.587069][ T7008] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.592849][ T7008] ___sys_sendmsg+0x100/0x170 [ 74.597574][ T7008] ? lockdep_hardirqs_on+0x463/0x620 [ 74.602929][ T7008] ? sendmsg_copy_msghdr+0x70/0x70 [ 74.608066][ T7008] ? prep_transhuge_page+0xa0/0xa0 [ 74.613167][ T7008] ? pud_val+0x7c/0xf0 [ 74.617223][ T7008] ? pmd_val+0xf0/0xf0 [ 74.621280][ T7008] ? mark_held_locks+0xe0/0xe0 [ 74.626031][ T7008] ? find_held_lock+0x2d/0x110 [ 74.630913][ T7008] ? do_page_fault+0x58b/0x12da [ 74.635781][ T7008] ? apply_to_existing_page_range+0x40/0x40 [ 74.641660][ T7008] ? lock_downgrade+0x840/0x840 [ 74.646513][ T7008] ? __fget_light+0x1ab/0x270 [ 74.651175][ T7008] __sys_sendmsg+0xec/0x1b0 [ 74.655655][ T7008] ? __sys_sendmsg_sock+0xb0/0xb0 [ 74.660654][ T7008] ? mark_held_locks+0x9f/0xe0 [ 74.665397][ T7008] ? trace_hardirqs_off_caller+0x55/0x230 [ 74.671264][ T7008] ? do_syscall_64+0x21/0x7d0 [ 74.675919][ T7008] do_syscall_64+0xf6/0x7d0 [ 74.680408][ T7008] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 74.686461][ T7008] RIP: 0033:0x4438a9 [ 74.690331][ T7008] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 6b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 74.709923][ T7008] RSP: 002b:00007ffe47c92638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.718318][ T7008] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004438a9 [ 74.726458][ T7008] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 74.734445][ T7008] RBP: 00007ffe47c92650 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 74.742404][ T7008] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe47c92680 [ 74.750352][ T7008] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 74.758595][ T7008] Modules linked in: [ 74.768936][ T7008] ---[ end trace 1a4615eb7e49060e ]--- [ 74.774895][ T7008] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 74.781689][ T7008] Code: fd 00 f0 ff ff 0f 87 23 03 00 00 e8 01 c5 d0 fc 48 8b 5c 24 38 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 1b 03 00 00 [ 74.802836][ T7008] RSP: 0018:ffffc90000eb7558 EFLAGS: 00010247 [ 74.808902][ T7008] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 74.816927][ T7008] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 74.826165][ T7008] RBP: ffff8880892c6000 R08: ffff888094bdc580 R09: ffffc90000eb7588 [ 74.834171][ T7008] R10: fffff520001d6eb3 R11: ffffc90000eb759f R12: 0000000000000000 [ 74.842202][ T7008] R13: ffff888218561100 R14: 1ffff920001d6eab R15: 0000000000000000 [ 74.850171][ T7008] FS: 0000000000bbb880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 74.859311][ T7008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.866042][ T7008] CR2: 00007f7da803b008 CR3: 000000009fc18000 CR4: 00000000001406f0 [ 74.874904][ T7008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.885693][ T7008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.894270][ T7008] Kernel panic - not syncing: Fatal exception [ 74.901701][ T7008] Kernel Offset: disabled [ 74.906054][ T7008] Rebooting in 86400 seconds..