[ 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. Starting Load/Save RF Kill Switch Status... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. syzkaller login: [ 68.960885][ T8489] IPVS: ftp: loaded support on port[0] = 21 [ 69.062468][ T8489] chnl_net:caif_netlink_parms(): no params data found [ 69.114026][ T8489] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.122930][ T8489] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.131977][ T8489] device bridge_slave_0 entered promiscuous mode [ 69.142270][ T8489] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.149525][ T8489] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.157259][ T8489] device bridge_slave_1 entered promiscuous mode [ 69.179668][ T8489] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.191062][ T8489] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.215715][ T8489] team0: Port device team_slave_0 added [ 69.223877][ T8489] team0: Port device team_slave_1 added [ 69.243176][ T8489] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.250378][ T8489] 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. [ 69.276610][ T8489] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.290393][ T8489] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.297355][ T8489] 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. [ 69.323732][ T8489] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.352529][ T8489] device hsr_slave_0 entered promiscuous mode [ 69.360595][ T8489] device hsr_slave_1 entered promiscuous mode [ 69.470218][ T8489] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.483324][ T8489] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.492709][ T8489] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.503968][ T8489] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.531331][ T8489] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.538567][ T8489] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.546399][ T8489] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.553570][ T8489] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.602479][ T8489] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.616898][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.627989][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.636938][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.645622][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.660204][ T8489] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.674092][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.683838][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.691232][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.717770][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.727238][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.734433][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.758430][ T3207] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.771042][ T3207] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.793692][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.802686][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.812949][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.825493][ T8489] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.847222][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.854757][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.871029][ T8489] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.892659][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.914402][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.922817][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.931960][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.943406][ T8489] device veth0_vlan entered promiscuous mode [ 69.955995][ T8489] device veth1_vlan entered promiscuous mode [ 69.979056][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.987042][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.997661][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.011922][ T8489] device veth0_macvtap entered promiscuous mode [ 70.022824][ T8489] device veth1_macvtap entered promiscuous mode [ 70.041122][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.051980][ T8489] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.061290][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.071552][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.083382][ T8489] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.091357][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.101264][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.115497][ T8489] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.124929][ T8489] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program [ 70.134202][ T8489] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.143574][ T8489] 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 executing program [ 70.263795][ T8713] divide error: 0000 [#1] PREEMPT SMP KASAN [ 70.269715][ T8713] CPU: 0 PID: 8713 Comm: syz-executor252 Not tainted 5.11.0-rc4-syzkaller #0 [ 70.278511][ T8713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.288596][ T8713] RIP: 0010:netem_enqueue+0x1470/0x3510 [ 70.294160][ T8713] Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 56 49 93 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 [ 70.313936][ T8713] RSP: 0018:ffffc90001f5f688 EFLAGS: 00010246 [ 70.320015][ T8713] RAX: 000000008893a070 RBX: ffff888011f59400 RCX: 0000000000000000 [ 70.328000][ T8713] RDX: 0000000000000000 RSI: ffff88802565ac80 RDI: ffff88802565acf4 [ 70.336014][ T8713] RBP: ffff888028520330 R08: ffff88802565ad50 R09: 0000000000000000 [ 70.343977][ T8713] R10: ffffffff83bc3fbd R11: 0000000000000000 R12: 0000000000000001 [ 70.351936][ T8713] R13: 0000000000000080 R14: ffff888028520000 R15: 0000000000000000 [ 70.359912][ T8713] FS: 0000000001a7e880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 70.368829][ T8713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.375399][ T8713] CR2: 00000000006d5090 CR3: 00000000131b7000 CR4: 00000000001506f0 [ 70.383356][ T8713] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.391332][ T8713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.399303][ T8713] Call Trace: [ 70.402578][ T8713] ? lock_release+0x710/0x710 [ 70.407250][ T8713] ? __lock_acquire+0xbdc/0x54f0 [ 70.412181][ T8713] ? netem_dump+0x1120/0x1120 [ 70.417017][ T8713] ? rwlock_bug.part.0+0x90/0x90 [ 70.421967][ T8713] __dev_queue_xmit+0x1913/0x2dd0 [ 70.427008][ T8713] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 70.432293][ T8713] ? memcpy+0x39/0x60 [ 70.436268][ T8713] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.442523][ T8713] ? memcpy+0x39/0x60 [ 70.446497][ T8713] ? __skb_clone+0x586/0x770 [ 70.451076][ T8713] netlink_deliver_tap+0x92e/0xb70 [ 70.456175][ T8713] netlink_unicast+0x5e5/0x7d0 [ 70.460928][ T8713] ? netlink_attachskb+0x870/0x870 [ 70.466043][ T8713] ? _copy_from_iter_full+0x275/0x850 [ 70.471407][ T8713] ? memset+0x20/0x40 [ 70.475411][ T8713] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.481639][ T8713] ? __check_object_size+0x30/0x3f0 [ 70.486870][ T8713] netlink_sendmsg+0x856/0xd90 [ 70.491627][ T8713] ? netlink_unicast+0x7d0/0x7d0 [ 70.496552][ T8713] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.502791][ T8713] ? netlink_unicast+0x7d0/0x7d0 [ 70.507735][ T8713] sock_sendmsg+0xcf/0x120 [ 70.512138][ T8713] ____sys_sendmsg+0x6e8/0x810 [ 70.516891][ T8713] ? kernel_sendmsg+0x50/0x50 [ 70.521560][ T8713] ? do_recvmmsg+0x6c0/0x6c0 [ 70.526148][ T8713] ? fs_reclaim_release+0x9c/0xe0 [ 70.531163][ T8713] ___sys_sendmsg+0xf3/0x170 [ 70.535745][ T8713] ? sendmsg_copy_msghdr+0x160/0x160 [ 70.541039][ T8713] ? lockdep_init_map_waits+0x26a/0x720 [ 70.546575][ T8713] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.552544][ T8713] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.558775][ T8713] ? percpu_counter_add_batch+0xbd/0x180 [ 70.564594][ T8713] ? find_held_lock+0x2d/0x110 [ 70.569347][ T8713] ? fd_install+0x1e3/0x640 [ 70.573837][ T8713] ? lock_downgrade+0x6d0/0x6d0 [ 70.578682][ T8713] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.584915][ T8713] ? __fget_light+0x215/0x280 [ 70.589579][ T8713] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.595813][ T8713] __sys_sendmsg+0xe5/0x1b0 [ 70.600326][ T8713] ? __sys_sendmsg_sock+0xb0/0xb0 [ 70.605355][ T8713] ? syscall_enter_from_user_mode+0x1d/0x50 [ 70.611271][ T8713] do_syscall_64+0x2d/0x70 [ 70.615673][ T8713] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 70.621563][ T8713] RIP: 0033:0x444149 [ 70.625459][ T8713] Code: e8 6c 05 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 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 70.645058][ T8713] RSP: 002b:00007fffd7350148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.653466][ T8713] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000444149 [ 70.661453][ T8713] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 [ 70.669412][ T8713] RBP: 00007fffd7350150 R08: 0000000000000000 R09: 0000000000000000 [ 70.677510][ T8713] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000011278 [ 70.685570][ T8713] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 70.693549][ T8713] Modules linked in: [ 70.697505][ T8713] ---[ end trace 1b6851e0a42ad300 ]--- [ 70.703001][ T8713] RIP: 0010:netem_enqueue+0x1470/0x3510 [ 70.708627][ T8713] Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 56 49 93 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 [ 70.728324][ T8713] RSP: 0018:ffffc90001f5f688 EFLAGS: 00010246 [ 70.734423][ T8713] RAX: 000000008893a070 RBX: ffff888011f59400 RCX: 0000000000000000 [ 70.742436][ T8713] RDX: 0000000000000000 RSI: ffff88802565ac80 RDI: ffff88802565acf4 [ 70.750480][ T8713] RBP: ffff888028520330 R08: ffff88802565ad50 R09: 0000000000000000 [ 70.758500][ T8713] R10: ffffffff83bc3fbd R11: 0000000000000000 R12: 0000000000000001 [ 70.766512][ T8713] R13: 0000000000000080 R14: ffff888028520000 R15: 0000000000000000 [ 70.774612][ T8713] FS: 0000000001a7e880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 70.783617][ T8713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.790245][ T8713] CR2: 00000000006d5090 CR3: 00000000131b7000 CR4: 00000000001506f0 [ 70.798294][ T8713] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.806292][ T8713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.814309][ T8713] Kernel panic - not syncing: Fatal exception in interrupt [ 70.822116][ T8713] Kernel Offset: disabled [ 70.826441][ T8713] Rebooting in 86400 seconds..