Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.38' (ECDSA) to the list of known hosts. syzkaller login: [ 56.314399][ T7022] IPVS: ftp: loaded support on port[0] = 21 [ 56.409357][ T7022] chnl_net:caif_netlink_parms(): no params data found [ 56.463931][ T7022] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.472183][ T7022] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.481189][ T7022] device bridge_slave_0 entered promiscuous mode [ 56.490689][ T7022] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.498433][ T7022] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.506173][ T7022] device bridge_slave_1 entered promiscuous mode [ 56.528032][ T7022] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.540283][ T7022] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.563478][ T7022] team0: Port device team_slave_0 added [ 56.570996][ T7022] team0: Port device team_slave_1 added [ 56.588967][ T7022] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.595982][ T7022] 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. [ 56.623234][ T7022] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.635991][ T7022] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.643503][ T7022] 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. [ 56.670494][ T7022] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.740424][ T7022] device hsr_slave_0 entered promiscuous mode [ 56.777711][ T7022] device hsr_slave_1 entered promiscuous mode [ 56.904801][ T7022] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.951065][ T7022] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.019810][ T7022] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.059794][ T7022] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.144073][ T7022] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.151285][ T7022] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.159330][ T7022] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.166428][ T7022] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.214192][ T7022] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.229175][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.241135][ T3063] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.249531][ T3063] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.258041][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.272036][ T7022] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.282934][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.292667][ T2689] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.300202][ T2689] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.312575][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.321567][ T3063] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.328701][ T3063] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.348388][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.363136][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.371214][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.383772][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.392760][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.405281][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.415046][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.426676][ T7022] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.445336][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.453332][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.472209][ T7022] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.491046][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 57.500891][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.522232][ T7022] device veth0_vlan entered promiscuous mode [ 57.528953][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 57.539147][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.548472][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.556254][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.570893][ T7022] device veth1_vlan entered promiscuous mode [ 57.592814][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.601684][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.610344][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.619569][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.631124][ T7022] device veth0_macvtap entered promiscuous mode [ 57.643541][ T7022] device veth1_macvtap entered promiscuous mode [ 57.661160][ T7022] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.669493][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.678534][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.686508][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.696019][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.713728][ T7022] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.721976][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.730975][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 57.863148][ T7022] netlink: 'syz-executor588': attribute type 1 has an invalid length. [ 57.873298][ T7022] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 57.885033][ T7022] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 57.893437][ T7022] CPU: 0 PID: 7022 Comm: syz-executor588 Not tainted 5.6.0-syzkaller #0 [ 57.901736][ T7022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.911789][ T7022] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 57.917576][ T7022] 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 [ 57.937166][ T7022] RSP: 0018:ffffc900016a7558 EFLAGS: 00010247 [ 57.943223][ T7022] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 57.951179][ T7022] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 57.959144][ T7022] RBP: ffff888090bbc000 R08: ffff888093bae1c0 R09: ffffc900016a7588 [ 57.967098][ T7022] R10: fffff520002d4eb3 R11: ffffc900016a759f R12: 0000000000000000 [ 57.975056][ T7022] R13: ffff888219063f80 R14: 1ffff920002d4eab R15: 0000000000000000 [ 57.983027][ T7022] FS: 0000000000915880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 57.992006][ T7022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.998676][ T7022] CR2: 00000000200000c0 CR3: 0000000090ecb000 CR4: 00000000001406f0 [ 58.006642][ T7022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.014604][ T7022] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.022568][ T7022] Call Trace: [ 58.025895][ T7022] ? macsec_add_txsa+0xf70/0xf70 [ 58.030829][ T7022] ? nla_memcpy+0xa0/0xa0 [ 58.035149][ T7022] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.041112][ T7022] ? cap_capable+0x1eb/0x250 [ 58.045692][ T7022] ? __nla_parse+0x2e/0x60 [ 58.050092][ T7022] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 58.056399][ T7022] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 58.062700][ T7022] genl_rcv_msg+0x627/0xdf0 [ 58.067195][ T7022] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 58.073523][ T7022] ? __dev_queue_xmit+0xbf2/0x30a0 [ 58.078633][ T7022] ? lock_release+0x800/0x800 [ 58.083286][ T7022] ? skb_splice_bits+0x1a0/0x1a0 [ 58.088209][ T7022] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 58.094024][ T7022] netlink_rcv_skb+0x15a/0x410 [ 58.098976][ T7022] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 58.105309][ T7022] ? netlink_ack+0xa10/0xa10 [ 58.109893][ T7022] genl_rcv+0x24/0x40 [ 58.113870][ T7022] netlink_unicast+0x537/0x740 [ 58.118624][ T7022] ? netlink_attachskb+0x810/0x810 [ 58.123718][ T7022] ? _copy_from_iter_full+0x25c/0x870 [ 58.129084][ T7022] ? __phys_addr_symbol+0x2c/0x70 [ 58.134093][ T7022] ? __check_object_size+0x171/0x437 [ 58.139361][ T7022] netlink_sendmsg+0x882/0xe10 [ 58.144165][ T7022] ? aa_af_perm+0x260/0x260 [ 58.148657][ T7022] ? netlink_unicast+0x740/0x740 [ 58.153595][ T7022] ? netlink_unicast+0x740/0x740 [ 58.158518][ T7022] sock_sendmsg+0xcf/0x120 [ 58.162913][ T7022] ____sys_sendmsg+0x6bf/0x7e0 [ 58.167657][ T7022] ? do_huge_pmd_anonymous_page+0xb65/0x1930 [ 58.173615][ T7022] ? kernel_sendmsg+0x50/0x50 [ 58.178271][ T7022] ? print_usage_bug+0x240/0x240 [ 58.183204][ T7022] ? lock_downgrade+0x840/0x840 [ 58.188098][ T7022] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.193630][ T7022] ___sys_sendmsg+0x100/0x170 [ 58.198291][ T7022] ? lockdep_hardirqs_on+0x463/0x620 [ 58.203574][ T7022] ? sendmsg_copy_msghdr+0x70/0x70 [ 58.208808][ T7022] ? prep_transhuge_page+0xa0/0xa0 [ 58.213905][ T7022] ? pud_val+0x7c/0xf0 [ 58.217968][ T7022] ? pmd_val+0xf0/0xf0 [ 58.222033][ T7022] ? mark_held_locks+0xe0/0xe0 [ 58.226784][ T7022] ? find_held_lock+0x2d/0x110 [ 58.231527][ T7022] ? do_page_fault+0x58b/0x12da [ 58.236353][ T7022] ? apply_to_existing_page_range+0x40/0x40 [ 58.242233][ T7022] ? lock_downgrade+0x840/0x840 [ 58.247084][ T7022] ? __fget_light+0x1ab/0x270 [ 58.251759][ T7022] __sys_sendmsg+0xec/0x1b0 [ 58.256249][ T7022] ? __sys_sendmsg_sock+0xb0/0xb0 [ 58.261282][ T7022] ? mark_held_locks+0x9f/0xe0 [ 58.266043][ T7022] ? trace_hardirqs_off_caller+0x55/0x230 [ 58.271808][ T7022] ? do_syscall_64+0x21/0x7d0 [ 58.276483][ T7022] do_syscall_64+0xf6/0x7d0 [ 58.280997][ T7022] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.286873][ T7022] RIP: 0033:0x4438a9 [ 58.290750][ T7022] 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 [ 58.310337][ T7022] RSP: 002b:00007ffdbc209dc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 58.318726][ T7022] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004438a9 [ 58.326673][ T7022] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 58.334634][ T7022] RBP: 00007ffdbc209de0 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 58.342591][ T7022] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdbc209e10 [ 58.350545][ T7022] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 58.358500][ T7022] Modules linked in: [ 58.367288][ T7022] ---[ end trace 940d024c60b441d2 ]--- [ 58.372824][ T7022] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 58.378848][ T7022] 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 [ 58.398581][ T7022] RSP: 0018:ffffc900016a7558 EFLAGS: 00010247 [ 58.404646][ T7022] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 58.412700][ T7022] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 58.421789][ T7022] RBP: ffff888090bbc000 R08: ffff888093bae1c0 R09: ffffc900016a7588 [ 58.429862][ T7022] R10: fffff520002d4eb3 R11: ffffc900016a759f R12: 0000000000000000 [ 58.438385][ T7022] R13: ffff888219063f80 R14: 1ffff920002d4eab R15: 0000000000000000 [ 58.446377][ T7022] FS: 0000000000915880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 58.455665][ T7022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.462356][ T7022] CR2: 00000000200000c0 CR3: 0000000090ecb000 CR4: 00000000001406f0 [ 58.470610][ T7022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.478942][ T7022] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.487090][ T7022] Kernel panic - not syncing: Fatal exception [ 58.494595][ T7022] Kernel Offset: disabled [ 58.498932][ T7022] Rebooting in 86400 seconds..