[ 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. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.119' (ECDSA) to the list of known hosts. syzkaller login: [ 58.026724][ T7006] IPVS: ftp: loaded support on port[0] = 21 [ 58.119932][ T7006] chnl_net:caif_netlink_parms(): no params data found [ 58.172874][ T7006] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.181106][ T7006] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.189809][ T7006] device bridge_slave_0 entered promiscuous mode [ 58.199330][ T7006] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.206758][ T7006] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.214493][ T7006] device bridge_slave_1 entered promiscuous mode [ 58.234853][ T7006] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.247439][ T7006] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.270588][ T7006] team0: Port device team_slave_0 added [ 58.278114][ T7006] team0: Port device team_slave_1 added [ 58.296218][ T7006] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.303177][ T7006] 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. [ 58.330469][ T7006] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.343255][ T7006] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.351497][ T7006] 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. [ 58.378439][ T7006] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.469510][ T7006] device hsr_slave_0 entered promiscuous mode [ 58.506534][ T7006] device hsr_slave_1 entered promiscuous mode [ 58.656877][ T7006] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.689300][ T7006] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.740123][ T7006] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.799168][ T7006] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.881247][ T7006] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.888452][ T7006] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.896349][ T7006] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.903462][ T7006] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.951502][ T7006] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.965007][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.975296][ T2879] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.983857][ T2879] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.992756][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 59.007374][ T7006] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.018541][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.027874][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.037347][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.056395][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.064842][ T2879] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.071969][ T2879] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.092964][ T7006] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.104517][ T7006] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.119457][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.129501][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.138300][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.149576][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.158771][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.168628][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.191038][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.199868][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.212864][ T7006] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.232092][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 59.241758][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.263493][ T7006] device veth0_vlan entered promiscuous mode [ 59.270748][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 59.280202][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.289974][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.298537][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.310887][ T7006] device veth1_vlan entered promiscuous mode [ 59.333960][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.343792][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.352714][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.361883][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.373343][ T7006] device veth0_macvtap entered promiscuous mode [ 59.384591][ T7006] device veth1_macvtap entered promiscuous mode [ 59.403024][ T7006] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.412256][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.420853][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.429457][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.438210][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.451487][ T7006] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.459006][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.468570][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 59.631497][ T7006] netlink: 'syz-executor343': attribute type 1 has an invalid length. [ 59.642733][ T7006] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 59.654588][ T7006] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 59.663004][ T7006] CPU: 1 PID: 7006 Comm: syz-executor343 Not tainted 5.6.0-syzkaller #0 [ 59.671316][ T7006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.681493][ T7006] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 59.687282][ T7006] 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 [ 59.706881][ T7006] RSP: 0018:ffffc90001797558 EFLAGS: 00010247 [ 59.712926][ T7006] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 59.720885][ T7006] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 59.728954][ T7006] RBP: ffff8880a8372000 R08: ffff888095cae5c0 R09: ffffc90001797588 [ 59.736915][ T7006] R10: fffff520002f2eb3 R11: ffffc9000179759f R12: 0000000000000000 [ 59.745003][ T7006] R13: ffff88809ffaff80 R14: 1ffff920002f2eab R15: 0000000000000000 [ 59.752976][ T7006] FS: 0000000000a6a880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 59.761897][ T7006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.768464][ T7006] CR2: 00007fdd4d1316c0 CR3: 0000000093074000 CR4: 00000000001406e0 [ 59.776424][ T7006] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.784369][ T7006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.792317][ T7006] Call Trace: [ 59.795589][ T7006] ? macsec_add_txsa+0xf70/0xf70 [ 59.800503][ T7006] ? nla_memcpy+0xa0/0xa0 [ 59.804827][ T7006] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.810802][ T7006] ? cap_capable+0x1eb/0x250 [ 59.815440][ T7006] ? __nla_parse+0x2e/0x60 [ 59.819915][ T7006] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 59.826269][ T7006] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 59.832691][ T7006] genl_rcv_msg+0x627/0xdf0 [ 59.837240][ T7006] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.843564][ T7006] ? __dev_queue_xmit+0xbf2/0x30a0 [ 59.848671][ T7006] ? lock_release+0x800/0x800 [ 59.853324][ T7006] ? skb_splice_bits+0x1a0/0x1a0 [ 59.858236][ T7006] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 59.864096][ T7006] netlink_rcv_skb+0x15a/0x410 [ 59.868865][ T7006] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 59.875185][ T7006] ? netlink_ack+0xa10/0xa10 [ 59.879783][ T7006] genl_rcv+0x24/0x40 [ 59.883767][ T7006] netlink_unicast+0x537/0x740 [ 59.888529][ T7006] ? netlink_attachskb+0x810/0x810 [ 59.893650][ T7006] ? _copy_from_iter_full+0x25c/0x870 [ 59.899099][ T7006] ? __phys_addr_symbol+0x2c/0x70 [ 59.904106][ T7006] ? __check_object_size+0x171/0x437 [ 59.909376][ T7006] netlink_sendmsg+0x882/0xe10 [ 59.914118][ T7006] ? aa_af_perm+0x260/0x260 [ 59.918618][ T7006] ? netlink_unicast+0x740/0x740 [ 59.923531][ T7006] ? netlink_unicast+0x740/0x740 [ 59.928448][ T7006] sock_sendmsg+0xcf/0x120 [ 59.932841][ T7006] ____sys_sendmsg+0x6bf/0x7e0 [ 59.937601][ T7006] ? do_huge_pmd_anonymous_page+0xb65/0x1930 [ 59.943573][ T7006] ? kernel_sendmsg+0x50/0x50 [ 59.948226][ T7006] ? print_usage_bug+0x240/0x240 [ 59.953159][ T7006] ? lock_downgrade+0x840/0x840 [ 59.957995][ T7006] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.963519][ T7006] ___sys_sendmsg+0x100/0x170 [ 59.968197][ T7006] ? lockdep_hardirqs_on+0x463/0x620 [ 59.973461][ T7006] ? sendmsg_copy_msghdr+0x70/0x70 [ 59.978567][ T7006] ? prep_transhuge_page+0xa0/0xa0 [ 59.983677][ T7006] ? pud_val+0x7c/0xf0 [ 59.987741][ T7006] ? pmd_val+0xf0/0xf0 [ 59.991811][ T7006] ? mark_held_locks+0xe0/0xe0 [ 59.996614][ T7006] ? find_held_lock+0x2d/0x110 [ 60.001570][ T7006] ? do_page_fault+0x58b/0x12da [ 60.006426][ T7006] ? apply_to_existing_page_range+0x40/0x40 [ 60.012337][ T7006] ? lock_downgrade+0x840/0x840 [ 60.017291][ T7006] ? __fget_light+0x1ab/0x270 [ 60.021961][ T7006] __sys_sendmsg+0xec/0x1b0 [ 60.026455][ T7006] ? __sys_sendmsg_sock+0xb0/0xb0 [ 60.031484][ T7006] ? mark_held_locks+0x9f/0xe0 [ 60.036252][ T7006] ? trace_hardirqs_off_caller+0x55/0x230 [ 60.041962][ T7006] ? do_syscall_64+0x21/0x7d0 [ 60.046637][ T7006] do_syscall_64+0xf6/0x7d0 [ 60.051247][ T7006] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.057122][ T7006] RIP: 0033:0x4438a9 [ 60.060997][ T7006] 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 [ 60.080581][ T7006] RSP: 002b:00007ffdc14392d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 60.088983][ T7006] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004438a9 [ 60.096940][ T7006] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 60.104889][ T7006] RBP: 00007ffdc14392f0 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 60.112850][ T7006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc1439320 [ 60.120800][ T7006] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 60.128759][ T7006] Modules linked in: [ 60.137848][ T7006] ---[ end trace 98b6a7926fe123d8 ]--- [ 60.143356][ T7006] RIP: 0010:macsec_upd_offload+0x1c9/0x5a0 [ 60.149857][ T7006] 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 [ 60.169890][ T7006] RSP: 0018:ffffc90001797558 EFLAGS: 00010247 [ 60.176326][ T7006] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84a2244d [ 60.184345][ T7006] RDX: 0000000000000000 RSI: ffffffff84a2245f RDI: 0000000000000004 [ 60.192704][ T7006] RBP: ffff8880a8372000 R08: ffff888095cae5c0 R09: ffffc90001797588 [ 60.200730][ T7006] R10: fffff520002f2eb3 R11: ffffc9000179759f R12: 0000000000000000 [ 60.209768][ T7006] R13: ffff88809ffaff80 R14: 1ffff920002f2eab R15: 0000000000000000 [ 60.217798][ T7006] FS: 0000000000a6a880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 60.226825][ T7006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.233400][ T7006] CR2: 00007fdd4d1316c0 CR3: 0000000093074000 CR4: 00000000001406e0 [ 60.241398][ T7006] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.249470][ T7006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.257726][ T7006] Kernel panic - not syncing: Fatal exception [ 60.265106][ T7006] Kernel Offset: disabled [ 60.269430][ T7006] Rebooting in 86400 seconds..