[ OK ] Started Getty on tty3. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ 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. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. syzkaller login: [ 61.044650][ T7234] IPVS: ftp: loaded support on port[0] = 21 [ 61.142897][ T7234] chnl_net:caif_netlink_parms(): no params data found [ 61.196392][ T7234] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.204143][ T7234] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.214313][ T7234] device bridge_slave_0 entered promiscuous mode [ 61.223910][ T7234] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.231602][ T7234] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.240000][ T7234] device bridge_slave_1 entered promiscuous mode [ 61.261607][ T7234] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.272884][ T7234] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.296216][ T7234] team0: Port device team_slave_0 added [ 61.303896][ T7234] team0: Port device team_slave_1 added [ 61.325009][ T7234] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.332407][ T7234] 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. [ 61.358504][ T7234] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.371417][ T7234] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.378367][ T7234] 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. [ 61.404384][ T7234] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.462454][ T7234] device hsr_slave_0 entered promiscuous mode [ 61.519786][ T7234] device hsr_slave_1 entered promiscuous mode [ 61.687828][ T7234] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.752254][ T7234] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.811787][ T7234] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.873029][ T7234] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.955278][ T7234] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.962594][ T7234] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.970802][ T7234] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.978018][ T7234] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.025736][ T7234] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.040852][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.053598][ T3147] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.062242][ T3147] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.075533][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 62.089815][ T7234] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.101723][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.111001][ T3368] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.118066][ T3368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.139580][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.148343][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.158206][ T3147] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.165377][ T3147] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.173492][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.182698][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.191907][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.201155][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.218901][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.226780][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.236333][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.245600][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.254552][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.264630][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.273531][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.285243][ T7234] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.306765][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.314446][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.331210][ T7234] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.351433][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 62.360708][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 62.380038][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 62.388391][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 62.401647][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 62.410440][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 62.418576][ T7234] device veth0_vlan entered promiscuous mode [ 62.431194][ T7234] device veth1_vlan entered promiscuous mode [ 62.454166][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.463047][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.471590][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 62.480909][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.492834][ T7234] device veth0_macvtap entered promiscuous mode [ 62.504245][ T7234] device veth1_macvtap entered promiscuous mode [ 62.523447][ T7234] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.532784][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.541508][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.549886][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.560098][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.573020][ T7234] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.580689][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.590172][ T3368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 62.775610][ T7234] netlink: 'syz-executor500': attribute type 1 has an invalid length. [ 62.784425][ T7234] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 62.796125][ T7234] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 62.804643][ T7234] CPU: 0 PID: 7234 Comm: syz-executor500 Not tainted 5.6.0-syzkaller #0 [ 62.812950][ T7234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.823130][ T7234] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 62.828944][ T7234] 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 [ 62.848628][ T7234] RSP: 0018:ffffc90001867558 EFLAGS: 00010247 [ 62.854706][ T7234] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 62.862658][ T7234] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 62.870608][ T7234] RBP: ffff88808a858000 R08: ffff88809d0d61c0 R09: ffffc90001867588 [ 62.878699][ T7234] R10: fffff5200030ceb3 R11: ffffc9000186759f R12: 0000000000000000 [ 62.886777][ T7234] R13: ffff8880a01bfd00 R14: 1ffff9200030ceab R15: 0000000000000000 [ 62.894745][ T7234] FS: 0000000000f0a880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 62.903677][ T7234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.910270][ T7234] CR2: 00000000200000c0 CR3: 00000000a4196000 CR4: 00000000001406f0 [ 62.918225][ T7234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.926188][ T7234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.934220][ T7234] Call Trace: [ 62.937503][ T7234] ? macsec_add_txsa+0xf70/0xf70 [ 62.942814][ T7234] ? nla_memcpy+0xa0/0xa0 [ 62.947128][ T7234] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.953226][ T7234] ? cap_capable+0x1eb/0x250 [ 62.957808][ T7234] ? __nla_parse+0x2e/0x60 [ 62.962225][ T7234] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 62.968563][ T7234] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 62.974990][ T7234] genl_rcv_msg+0x627/0xdf0 [ 62.979593][ T7234] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 62.986062][ T7234] ? __dev_queue_xmit+0xbf2/0x30a0 [ 62.991174][ T7234] ? lock_release+0x800/0x800 [ 62.995833][ T7234] ? skb_splice_bits+0x1a0/0x1a0 [ 63.000752][ T7234] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 63.006540][ T7234] netlink_rcv_skb+0x15a/0x410 [ 63.011293][ T7234] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 63.017597][ T7234] ? netlink_ack+0xa10/0xa10 [ 63.022180][ T7234] genl_rcv+0x24/0x40 [ 63.026218][ T7234] netlink_unicast+0x537/0x740 [ 63.030979][ T7234] ? netlink_attachskb+0x810/0x810 [ 63.036070][ T7234] ? _copy_from_iter_full+0x25c/0x870 [ 63.041475][ T7234] ? __phys_addr_symbol+0x2c/0x70 [ 63.046482][ T7234] ? __check_object_size+0x171/0x437 [ 63.051840][ T7234] netlink_sendmsg+0x882/0xe10 [ 63.056605][ T7234] ? aa_af_perm+0x260/0x260 [ 63.061195][ T7234] ? netlink_unicast+0x740/0x740 [ 63.066109][ T7234] ? netlink_unicast+0x740/0x740 [ 63.071039][ T7234] sock_sendmsg+0xcf/0x120 [ 63.075516][ T7234] ____sys_sendmsg+0x6bf/0x7e0 [ 63.080271][ T7234] ? do_huge_pmd_anonymous_page+0xb65/0x1930 [ 63.086240][ T7234] ? kernel_sendmsg+0x50/0x50 [ 63.090928][ T7234] ? print_usage_bug+0x240/0x240 [ 63.095847][ T7234] ? lock_downgrade+0x840/0x840 [ 63.100736][ T7234] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.106347][ T7234] ___sys_sendmsg+0x100/0x170 [ 63.111021][ T7234] ? lockdep_hardirqs_on+0x463/0x620 [ 63.116284][ T7234] ? sendmsg_copy_msghdr+0x70/0x70 [ 63.121388][ T7234] ? prep_transhuge_page+0xa0/0xa0 [ 63.126475][ T7234] ? pud_val+0x7c/0xf0 [ 63.130531][ T7234] ? pmd_val+0xf0/0xf0 [ 63.134595][ T7234] ? mark_held_locks+0xe0/0xe0 [ 63.139450][ T7234] ? find_held_lock+0x2d/0x110 [ 63.144190][ T7234] ? do_page_fault+0x58b/0x12da [ 63.149031][ T7234] ? apply_to_existing_page_range+0x40/0x40 [ 63.154902][ T7234] ? lock_downgrade+0x840/0x840 [ 63.159739][ T7234] ? __fget_light+0x1ab/0x270 [ 63.164395][ T7234] __sys_sendmsg+0xec/0x1b0 [ 63.168880][ T7234] ? __sys_sendmsg_sock+0xb0/0xb0 [ 63.173901][ T7234] ? mark_held_locks+0x9f/0xe0 [ 63.178654][ T7234] ? trace_hardirqs_off_caller+0x55/0x230 [ 63.184366][ T7234] ? do_syscall_64+0x21/0x7d0 [ 63.189028][ T7234] do_syscall_64+0xf6/0x7d0 [ 63.193514][ T7234] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 63.199385][ T7234] RIP: 0033:0x4438a9 [ 63.203260][ T7234] 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 [ 63.222845][ T7234] RSP: 002b:00007fff1c439198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.231298][ T7234] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004438a9 [ 63.239373][ T7234] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 63.247343][ T7234] RBP: 00007fff1c4391b0 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 63.255301][ T7234] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff1c4391e0 [ 63.263252][ T7234] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 63.271213][ T7234] Modules linked in: [ 63.280235][ T7234] ---[ end trace 9d9ef889b336cf90 ]--- [ 63.285820][ T7234] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 63.294288][ T7234] 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 [ 63.314503][ T7234] RSP: 0018:ffffc90001867558 EFLAGS: 00010247 [ 63.320971][ T7234] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 63.328983][ T7234] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 63.337209][ T7234] RBP: ffff88808a858000 R08: ffff88809d0d61c0 R09: ffffc90001867588 [ 63.345245][ T7234] R10: fffff5200030ceb3 R11: ffffc9000186759f R12: 0000000000000000 [ 63.353403][ T7234] R13: ffff8880a01bfd00 R14: 1ffff9200030ceab R15: 0000000000000000 [ 63.361420][ T7234] FS: 0000000000f0a880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 63.370944][ T7234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.377804][ T7234] CR2: 00000000200000c0 CR3: 00000000a4196000 CR4: 00000000001406f0 [ 63.386596][ T7234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.395489][ T7234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.403809][ T7234] Kernel panic - not syncing: Fatal exception [ 63.411669][ T7234] Kernel Offset: disabled [ 63.416083][ T7234] Rebooting in 86400 seconds..