[ 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 '10.128.0.113' (ECDSA) to the list of known hosts. syzkaller login: [ 66.327336][ T8485] IPVS: ftp: loaded support on port[0] = 21 [ 66.422094][ T8485] chnl_net:caif_netlink_parms(): no params data found [ 66.476287][ T8485] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.483705][ T8485] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.492761][ T8485] device bridge_slave_0 entered promiscuous mode [ 66.502357][ T8485] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.509630][ T8485] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.517698][ T8485] device bridge_slave_1 entered promiscuous mode [ 66.538344][ T8485] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.549102][ T8485] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.572279][ T8485] team0: Port device team_slave_0 added [ 66.579761][ T8485] team0: Port device team_slave_1 added [ 66.598159][ T8485] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.605392][ T8485] 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. [ 66.632584][ T8485] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.646382][ T8485] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.653344][ T8485] 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. [ 66.679705][ T8485] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.706539][ T8485] device hsr_slave_0 entered promiscuous mode [ 66.713202][ T8485] device hsr_slave_1 entered promiscuous mode [ 66.813998][ T8485] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.824744][ T8485] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.835396][ T8485] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.844163][ T8485] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.871330][ T8485] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.878503][ T8485] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.886319][ T8485] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.893378][ T8485] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.940751][ T8485] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.955939][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.967795][ T3157] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.976407][ T3157] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.984146][ T3157] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.997924][ T8485] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.010925][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.020373][ T3000] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.027515][ T3000] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.047269][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.056507][ T8691] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.063552][ T8691] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.087138][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.096637][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.106531][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.116352][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.124879][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.136604][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.156266][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.163630][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.176886][ T8485] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.198789][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.218369][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.227583][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.235749][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.247476][ T8485] device veth0_vlan entered promiscuous mode [ 67.259847][ T8485] device veth1_vlan entered promiscuous mode [ 67.281852][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.290730][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.299826][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.310158][ T8485] device veth0_macvtap entered promiscuous mode [ 67.320970][ T8485] device veth1_macvtap entered promiscuous mode [ 67.340963][ T8485] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.349517][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.360203][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.372721][ T8485] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.381552][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 67.393144][ T8485] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.402029][ T8485] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.411032][ T8485] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.420123][ T8485] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.466753][ T8485] ------------[ cut here ]------------ [ 67.472383][ T8485] WARNING: CPU: 1 PID: 8485 at net/sched/sch_taprio.c:998 taprio_change+0x1ed0/0x2d40 [ 67.481997][ T8485] Modules linked in: [ 67.486010][ T8485] CPU: 1 PID: 8485 Comm: syz-executor239 Not tainted 5.10.0-rc1-syzkaller #0 [ 67.494870][ T8485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.505026][ T8485] RIP: 0010:taprio_change+0x1ed0/0x2d40 [ 67.510572][ T8485] Code: 8b 44 24 18 41 bf ea ff ff ff 48 c7 00 40 25 48 8a e8 84 85 4c fa 48 8b 7c 24 08 e8 8a 7f c3 01 e9 0a eb ff ff e8 70 85 4c fa <0f> 0b 48 83 7c 24 18 00 74 2e e8 61 85 4c fa 48 8b 54 24 18 48 b8 [ 67.530357][ T8485] RSP: 0018:ffffc90000ecf2b8 EFLAGS: 00010293 [ 67.536552][ T8485] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff87237ce0 [ 67.544704][ T8485] RDX: ffff888024b61a40 RSI: ffffffff87238190 RDI: 0000000000000007 [ 67.552682][ T8485] RBP: 16439585f6815984 R08: 0000000000000001 R09: ffffffff8ebae72f [ 67.560773][ T8485] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 67.569181][ T8485] R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 [ 67.578110][ T8485] FS: 0000000000fd5880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 67.587120][ T8485] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.593729][ T8485] CR2: 0000000020000600 CR3: 0000000015227000 CR4: 00000000001506e0 [ 67.601788][ T8485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.609844][ T8485] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.617882][ T8485] Call Trace: [ 67.621194][ T8485] ? lockdep_init_map_waits+0x26a/0x720 [ 67.626812][ T8485] ? fifo_init+0x342/0x6c0 [ 67.631271][ T8485] ? taprio_peek_soft+0x5e0/0x5e0 [ 67.636367][ T8485] ? fifo_create_dflt+0xe0/0xe0 [ 67.641238][ T8485] ? mutex_is_locked+0xe/0x40 [ 67.646000][ T8485] ? rtnl_is_locked+0x11/0x20 [ 67.650713][ T8485] ? qdisc_hash_add+0x21d/0x330 [ 67.655669][ T8485] taprio_init+0x52e/0x670 [ 67.660111][ T8485] ? taprio_change+0x2d40/0x2d40 [ 67.665114][ T8485] qdisc_create+0x4ba/0x1270 [ 67.669728][ T8485] ? tc_get_qdisc+0xad0/0xad0 [ 67.674485][ T8485] ? __nla_parse+0x3d/0x50 [ 67.678905][ T8485] tc_modify_qdisc+0x4c8/0x1990 [ 67.683747][ T8485] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 67.688915][ T8485] ? qdisc_create+0x1270/0x1270 [ 67.693803][ T8485] ? qdisc_create+0x1270/0x1270 [ 67.698742][ T8485] rtnetlink_rcv_msg+0x44e/0xad0 [ 67.703719][ T8485] ? rtnetlink_put_metrics+0x510/0x510 [ 67.709245][ T8485] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 67.714724][ T8485] netlink_rcv_skb+0x153/0x420 [ 67.719479][ T8485] ? rtnetlink_put_metrics+0x510/0x510 [ 67.725043][ T8485] ? netlink_ack+0xaa0/0xaa0 [ 67.729654][ T8485] ? netlink_deliver_tap+0x227/0xb70 [ 67.735026][ T8485] netlink_unicast+0x533/0x7d0 [ 67.739808][ T8485] ? netlink_attachskb+0x810/0x810 [ 67.744988][ T8485] ? __phys_addr_symbol+0x2c/0x70 [ 67.750023][ T8485] ? __check_object_size+0x171/0x3f0 [ 67.755424][ T8485] netlink_sendmsg+0x856/0xd90 [ 67.760207][ T8485] ? netlink_unicast+0x7d0/0x7d0 [ 67.765223][ T8485] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 67.770516][ T8485] ? netlink_unicast+0x7d0/0x7d0 [ 67.775575][ T8485] sock_sendmsg+0xcf/0x120 [ 67.780014][ T8485] ____sys_sendmsg+0x6e8/0x810 [ 67.784891][ T8485] ? kernel_sendmsg+0x50/0x50 [ 67.789592][ T8485] ? do_recvmmsg+0x6c0/0x6c0 [ 67.794285][ T8485] ? fs_reclaim_release+0x90/0xd0 [ 67.799323][ T8485] ___sys_sendmsg+0xf3/0x170 [ 67.803893][ T8485] ? sendmsg_copy_msghdr+0x160/0x160 [ 67.809238][ T8485] ? lockdep_init_map_waits+0x26a/0x720 [ 67.814922][ T8485] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 67.820903][ T8485] ? percpu_counter_add_batch+0xbd/0x180 [ 67.826603][ T8485] ? find_held_lock+0x2d/0x110 [ 67.831374][ T8485] ? __fd_install+0x1b4/0x600 [ 67.836115][ T8485] ? lock_downgrade+0x6d0/0x6d0 [ 67.840988][ T8485] ? __fget_light+0x215/0x280 [ 67.845767][ T8485] __sys_sendmsg+0xe5/0x1b0 [ 67.850283][ T8485] ? __sys_sendmsg_sock+0xb0/0xb0 [ 67.855388][ T8485] ? syscall_enter_from_user_mode+0x1d/0x50 [ 67.861301][ T8485] do_syscall_64+0x2d/0x70 [ 67.865782][ T8485] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.871714][ T8485] RIP: 0033:0x443999 [ 67.875701][ T8485] 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 eb 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.895384][ T8485] RSP: 002b:00007ffcb38fcd78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 67.903801][ T8485] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443999 [ 67.911824][ T8485] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 67.919877][ T8485] RBP: 00007ffcb38fcd80 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 67.927918][ T8485] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffcb38fcd90 [ 67.935984][ T8485] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 67.943978][ T8485] Kernel panic - not syncing: panic_on_warn set ... [ 67.950571][ T8485] CPU: 1 PID: 8485 Comm: syz-executor239 Not tainted 5.10.0-rc1-syzkaller #0 [ 67.959309][ T8485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.969341][ T8485] Call Trace: [ 67.972627][ T8485] dump_stack+0x107/0x163 [ 67.976958][ T8485] panic+0x306/0x73d [ 67.980852][ T8485] ? __warn_printk+0xf3/0xf3 [ 67.985434][ T8485] ? __warn.cold+0x1d/0xbb [ 67.989831][ T8485] ? __warn.cold+0x14/0xbb [ 67.994263][ T8485] ? taprio_change+0x1ed0/0x2d40 [ 67.999225][ T8485] __warn.cold+0x38/0xbb [ 68.003466][ T8485] ? taprio_change+0x1ed0/0x2d40 [ 68.008401][ T8485] report_bug+0x1bd/0x210 [ 68.012720][ T8485] handle_bug+0x3c/0x60 [ 68.016857][ T8485] exc_invalid_op+0x14/0x40 [ 68.021340][ T8485] asm_exc_invalid_op+0x12/0x20 [ 68.026184][ T8485] RIP: 0010:taprio_change+0x1ed0/0x2d40 [ 68.031728][ T8485] Code: 8b 44 24 18 41 bf ea ff ff ff 48 c7 00 40 25 48 8a e8 84 85 4c fa 48 8b 7c 24 08 e8 8a 7f c3 01 e9 0a eb ff ff e8 70 85 4c fa <0f> 0b 48 83 7c 24 18 00 74 2e e8 61 85 4c fa 48 8b 54 24 18 48 b8 [ 68.051313][ T8485] RSP: 0018:ffffc90000ecf2b8 EFLAGS: 00010293 [ 68.057362][ T8485] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff87237ce0 [ 68.065311][ T8485] RDX: ffff888024b61a40 RSI: ffffffff87238190 RDI: 0000000000000007 [ 68.073262][ T8485] RBP: 16439585f6815984 R08: 0000000000000001 R09: ffffffff8ebae72f [ 68.081242][ T8485] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 68.089194][ T8485] R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 [ 68.097160][ T8485] ? taprio_change+0x1a20/0x2d40 [ 68.102072][ T8485] ? taprio_change+0x1ed0/0x2d40 [ 68.107004][ T8485] ? taprio_change+0x1ed0/0x2d40 [ 68.111935][ T8485] ? lockdep_init_map_waits+0x26a/0x720 [ 68.117459][ T8485] ? fifo_init+0x342/0x6c0 [ 68.121854][ T8485] ? taprio_peek_soft+0x5e0/0x5e0 [ 68.126857][ T8485] ? fifo_create_dflt+0xe0/0xe0 [ 68.131692][ T8485] ? mutex_is_locked+0xe/0x40 [ 68.136351][ T8485] ? rtnl_is_locked+0x11/0x20 [ 68.141019][ T8485] ? qdisc_hash_add+0x21d/0x330 [ 68.145855][ T8485] taprio_init+0x52e/0x670 [ 68.150257][ T8485] ? taprio_change+0x2d40/0x2d40 [ 68.155174][ T8485] qdisc_create+0x4ba/0x1270 [ 68.159748][ T8485] ? tc_get_qdisc+0xad0/0xad0 [ 68.164407][ T8485] ? __nla_parse+0x3d/0x50 [ 68.168804][ T8485] tc_modify_qdisc+0x4c8/0x1990 [ 68.173651][ T8485] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 68.178755][ T8485] ? qdisc_create+0x1270/0x1270 [ 68.183598][ T8485] ? qdisc_create+0x1270/0x1270 [ 68.188440][ T8485] rtnetlink_rcv_msg+0x44e/0xad0 [ 68.193360][ T8485] ? rtnetlink_put_metrics+0x510/0x510 [ 68.198821][ T8485] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 68.204092][ T8485] netlink_rcv_skb+0x153/0x420 [ 68.208837][ T8485] ? rtnetlink_put_metrics+0x510/0x510 [ 68.214290][ T8485] ? netlink_ack+0xaa0/0xaa0 [ 68.218856][ T8485] ? netlink_deliver_tap+0x227/0xb70 [ 68.224148][ T8485] netlink_unicast+0x533/0x7d0 [ 68.228906][ T8485] ? netlink_attachskb+0x810/0x810 [ 68.236268][ T8485] ? __phys_addr_symbol+0x2c/0x70 [ 68.241284][ T8485] ? __check_object_size+0x171/0x3f0 [ 68.246560][ T8485] netlink_sendmsg+0x856/0xd90 [ 68.251305][ T8485] ? netlink_unicast+0x7d0/0x7d0 [ 68.256229][ T8485] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 68.261502][ T8485] ? netlink_unicast+0x7d0/0x7d0 [ 68.266442][ T8485] sock_sendmsg+0xcf/0x120 [ 68.270842][ T8485] ____sys_sendmsg+0x6e8/0x810 [ 68.275595][ T8485] ? kernel_sendmsg+0x50/0x50 [ 68.280258][ T8485] ? do_recvmmsg+0x6c0/0x6c0 [ 68.284844][ T8485] ? fs_reclaim_release+0x90/0xd0 [ 68.289874][ T8485] ___sys_sendmsg+0xf3/0x170 [ 68.294444][ T8485] ? sendmsg_copy_msghdr+0x160/0x160 [ 68.299722][ T8485] ? lockdep_init_map_waits+0x26a/0x720 [ 68.305247][ T8485] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 68.311209][ T8485] ? percpu_counter_add_batch+0xbd/0x180 [ 68.316841][ T8485] ? find_held_lock+0x2d/0x110 [ 68.321601][ T8485] ? __fd_install+0x1b4/0x600 [ 68.326270][ T8485] ? lock_downgrade+0x6d0/0x6d0 [ 68.331100][ T8485] ? __fget_light+0x215/0x280 [ 68.335784][ T8485] __sys_sendmsg+0xe5/0x1b0 [ 68.340278][ T8485] ? __sys_sendmsg_sock+0xb0/0xb0 [ 68.345307][ T8485] ? syscall_enter_from_user_mode+0x1d/0x50 [ 68.351209][ T8485] do_syscall_64+0x2d/0x70 [ 68.355608][ T8485] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.361478][ T8485] RIP: 0033:0x443999 [ 68.365367][ T8485] 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 eb 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.384955][ T8485] RSP: 002b:00007ffcb38fcd78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.393360][ T8485] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443999 [ 68.401326][ T8485] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 68.409286][ T8485] RBP: 00007ffcb38fcd80 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 68.417237][ T8485] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffcb38fcd90 [ 68.425193][ T8485] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 68.433857][ T8485] Kernel Offset: disabled [ 68.438254][ T8485] Rebooting in 86400 seconds..