[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.61' (ECDSA) to the list of known hosts. syzkaller login: [ 70.020960][ T8423] IPVS: ftp: loaded support on port[0] = 21 [ 70.109621][ T8423] chnl_net:caif_netlink_parms(): no params data found [ 70.161372][ T8423] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.169116][ T8423] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.177942][ T8423] device bridge_slave_0 entered promiscuous mode [ 70.188030][ T8423] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.195652][ T8423] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.203972][ T8423] device bridge_slave_1 entered promiscuous mode [ 70.223788][ T8423] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.235217][ T8423] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.257944][ T8423] team0: Port device team_slave_0 added [ 70.265678][ T8423] team0: Port device team_slave_1 added [ 70.284523][ T8423] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.291481][ T8423] 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. [ 70.318685][ T8423] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.331683][ T8423] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.339183][ T8423] 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. [ 70.365122][ T8423] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.392215][ T8423] device hsr_slave_0 entered promiscuous mode [ 70.398811][ T8423] device hsr_slave_1 entered promiscuous mode [ 70.502438][ T8423] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.514378][ T8423] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.525223][ T8423] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.534281][ T8423] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.560568][ T8423] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.567880][ T8423] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.575644][ T8423] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.582823][ T8423] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.626652][ T8423] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.640769][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.653707][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.662586][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.670393][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.684931][ T8423] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.697421][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.706410][ T3002] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.713536][ T3002] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.732578][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.741202][ T8629] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.748354][ T8629] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.758733][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.771058][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.788503][ T8423] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 70.800482][ T8423] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.816617][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.825709][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.834298][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.843037][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.859864][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.867411][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.880203][ T8423] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.900310][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.918949][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.927737][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.936911][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.948070][ T8423] device veth0_vlan entered promiscuous mode [ 70.962658][ T8423] device veth1_vlan entered promiscuous mode [ 70.984656][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.993751][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.002191][ T8629] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.013489][ T8423] device veth0_macvtap entered promiscuous mode [ 71.025420][ T8423] device veth1_macvtap entered promiscuous mode [ 71.044668][ T8423] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.053580][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.064515][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.076566][ T8423] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.084444][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 71.096039][ T8423] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.105651][ T8423] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.114897][ T8423] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.124247][ T8423] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.167049][ T8423] ------------[ cut here ]------------ [ 71.172571][ T8423] net/hsr/hsr_forward.c:560: Malformed frame (port_src hsr0) [ 71.180742][ T8423] WARNING: CPU: 0 PID: 8423 at net/hsr/hsr_forward.c:559 hsr_forward_skb+0x10b6/0x1840 [ 71.190486][ T8423] Modules linked in: [ 71.194457][ T8423] CPU: 0 PID: 8423 Comm: syz-executor440 Not tainted 5.11.0-rc7-syzkaller #0 [ 71.203294][ T8423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.213427][ T8423] RIP: 0010:hsr_forward_skb+0x10b6/0x1840 [ 71.219162][ T8423] Code: fa ff ff e8 fc e7 c0 f8 4c 89 e1 ba 30 02 00 00 48 c7 c6 20 c0 8d 8a 48 c7 c7 40 c1 8d 8a c6 05 93 e2 fd 04 01 e8 64 fb 0a 00 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 [ 71.238871][ T8423] RSP: 0018:ffffc90001cbf8e0 EFLAGS: 00010286 [ 71.245027][ T8423] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 71.253071][ T8423] RDX: ffff888017c50000 RSI: ffffffff815b87d5 RDI: fffff52000397f0e [ 71.261050][ T8423] RBP: ffff88801d5c5c80 R08: 0000000000000000 R09: 0000000000000000 [ 71.269077][ T8423] R10: ffffffff815b19ae R11: 0000000000000000 R12: ffff888025f26000 [ 71.277126][ T8423] R13: 1ffff92000397f23 R14: ffff888011ae8d00 R15: ffff888011ae8d10 [ 71.285155][ T8423] FS: 0000000001ca9300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 71.294163][ T8423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.300758][ T8423] CR2: 00000000200000c0 CR3: 00000000182da000 CR4: 00000000001506f0 [ 71.308789][ T8423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.316824][ T8423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.324861][ T8423] Call Trace: [ 71.328144][ T8423] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.334208][ T8423] ? prp_fill_frame_info+0x6a0/0x6a0 [ 71.339504][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.345794][ T8423] ? validate_xmit_xfrm+0x460/0x1040 [ 71.351098][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.357392][ T8423] ? netif_skb_features+0x38d/0xb90 [ 71.362662][ T8423] ? validate_xmit_skb+0x868/0xee0 [ 71.367778][ T8423] hsr_dev_xmit+0x78/0xd0 [ 71.372171][ T8423] __dev_direct_xmit+0x527/0x730 [ 71.377121][ T8423] ? validate_xmit_skb_list+0x120/0x120 [ 71.382712][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.388978][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.395281][ T8423] ? netdev_pick_tx+0x150/0xb70 [ 71.400137][ T8423] ? prb_fill_curr_block+0x5d0/0x5d0 [ 71.405469][ T8423] packet_direct_xmit+0x1a5/0x280 [ 71.410501][ T8423] packet_sendmsg+0x2405/0x52b0 [ 71.415446][ T8423] ? aa_sk_perm+0x316/0xaa0 [ 71.419975][ T8423] ? packet_cached_dev_get+0x250/0x250 [ 71.425498][ T8423] ? aa_af_perm+0x230/0x230 [ 71.430027][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.436322][ T8423] ? packet_cached_dev_get+0x250/0x250 [ 71.441854][ T8423] sock_sendmsg+0xcf/0x120 [ 71.446280][ T8423] __sys_sendto+0x21c/0x320 [ 71.450774][ T8423] ? __ia32_sys_getpeername+0xb0/0xb0 [ 71.456210][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.462531][ T8423] ? __sys_setsockopt+0x31c/0x610 [ 71.467585][ T8423] ? __ia32_sys_recv+0x100/0x100 [ 71.472567][ T8423] ? vlan_ioctl_set+0x30/0x30 [ 71.477264][ T8423] ? vmacache_update+0xce/0x140 [ 71.482201][ T8423] __x64_sys_sendto+0xdd/0x1b0 [ 71.486990][ T8423] ? lockdep_hardirqs_on+0x79/0x100 [ 71.492261][ T8423] ? syscall_enter_from_user_mode+0x1d/0x50 [ 71.498164][ T8423] do_syscall_64+0x2d/0x70 [ 71.502657][ T8423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.508561][ T8423] RIP: 0033:0x4431a9 [ 71.512496][ T8423] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 71.532201][ T8423] RSP: 002b:00007ffdf75e6bf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 71.540630][ T8423] RAX: ffffffffffffffda RBX: 00007ffdf75e6c18 RCX: 00000000004431a9 [ 71.548652][ T8423] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 71.556691][ T8423] RBP: 0000000000000003 R08: 0000000020000100 R09: 0000000000000014 [ 71.564725][ T8423] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdf75e6c20 [ 71.572761][ T8423] R13: 00007ffdf75e6c40 R14: 00000000004b8018 R15: 00000000004004b8 [ 71.580765][ T8423] Kernel panic - not syncing: panic_on_warn set ... [ 71.587330][ T8423] CPU: 0 PID: 8423 Comm: syz-executor440 Not tainted 5.11.0-rc7-syzkaller #0 [ 71.596076][ T8423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.606114][ T8423] Call Trace: [ 71.609393][ T8423] dump_stack+0x107/0x163 [ 71.613749][ T8423] panic+0x306/0x73d [ 71.617653][ T8423] ? __warn_printk+0xf3/0xf3 [ 71.622252][ T8423] ? __warn.cold+0x1a/0x44 [ 71.626681][ T8423] ? hsr_forward_skb+0x10b6/0x1840 [ 71.631782][ T8423] __warn.cold+0x35/0x44 [ 71.636029][ T8423] ? hsr_forward_skb+0x10b6/0x1840 [ 71.641126][ T8423] report_bug+0x1bd/0x210 [ 71.645446][ T8423] handle_bug+0x3c/0x60 [ 71.649607][ T8423] exc_invalid_op+0x14/0x40 [ 71.654102][ T8423] asm_exc_invalid_op+0x12/0x20 [ 71.658946][ T8423] RIP: 0010:hsr_forward_skb+0x10b6/0x1840 [ 71.664651][ T8423] Code: fa ff ff e8 fc e7 c0 f8 4c 89 e1 ba 30 02 00 00 48 c7 c6 20 c0 8d 8a 48 c7 c7 40 c1 8d 8a c6 05 93 e2 fd 04 01 e8 64 fb 0a 00 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 [ 71.684270][ T8423] RSP: 0018:ffffc90001cbf8e0 EFLAGS: 00010286 [ 71.690367][ T8423] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 71.698325][ T8423] RDX: ffff888017c50000 RSI: ffffffff815b87d5 RDI: fffff52000397f0e [ 71.706285][ T8423] RBP: ffff88801d5c5c80 R08: 0000000000000000 R09: 0000000000000000 [ 71.714262][ T8423] R10: ffffffff815b19ae R11: 0000000000000000 R12: ffff888025f26000 [ 71.722221][ T8423] R13: 1ffff92000397f23 R14: ffff888011ae8d00 R15: ffff888011ae8d10 [ 71.730203][ T8423] ? wake_up_klogd.part.0+0x8e/0xd0 [ 71.735401][ T8423] ? vprintk_func+0x95/0x1e0 [ 71.739985][ T8423] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.745956][ T8423] ? prp_fill_frame_info+0x6a0/0x6a0 [ 71.751228][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.757461][ T8423] ? validate_xmit_xfrm+0x460/0x1040 [ 71.762737][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.768986][ T8423] ? netif_skb_features+0x38d/0xb90 [ 71.774171][ T8423] ? validate_xmit_skb+0x868/0xee0 [ 71.779264][ T8423] hsr_dev_xmit+0x78/0xd0 [ 71.783577][ T8423] __dev_direct_xmit+0x527/0x730 [ 71.788501][ T8423] ? validate_xmit_skb_list+0x120/0x120 [ 71.794050][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.800277][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.806505][ T8423] ? netdev_pick_tx+0x150/0xb70 [ 71.811336][ T8423] ? prb_fill_curr_block+0x5d0/0x5d0 [ 71.816609][ T8423] packet_direct_xmit+0x1a5/0x280 [ 71.821643][ T8423] packet_sendmsg+0x2405/0x52b0 [ 71.826513][ T8423] ? aa_sk_perm+0x316/0xaa0 [ 71.831010][ T8423] ? packet_cached_dev_get+0x250/0x250 [ 71.836449][ T8423] ? aa_af_perm+0x230/0x230 [ 71.840948][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.847177][ T8423] ? packet_cached_dev_get+0x250/0x250 [ 71.852619][ T8423] sock_sendmsg+0xcf/0x120 [ 71.857036][ T8423] __sys_sendto+0x21c/0x320 [ 71.861525][ T8423] ? __ia32_sys_getpeername+0xb0/0xb0 [ 71.866907][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.873134][ T8423] ? __sys_setsockopt+0x31c/0x610 [ 71.878146][ T8423] ? __ia32_sys_recv+0x100/0x100 [ 71.883068][ T8423] ? vlan_ioctl_set+0x30/0x30 [ 71.887726][ T8423] ? vmacache_update+0xce/0x140 [ 71.892584][ T8423] __x64_sys_sendto+0xdd/0x1b0 [ 71.897358][ T8423] ? lockdep_hardirqs_on+0x79/0x100 [ 71.902549][ T8423] ? syscall_enter_from_user_mode+0x1d/0x50 [ 71.908447][ T8423] do_syscall_64+0x2d/0x70 [ 71.912865][ T8423] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.918760][ T8423] RIP: 0033:0x4431a9 [ 71.922643][ T8423] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 71.942255][ T8423] RSP: 002b:00007ffdf75e6bf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 71.950673][ T8423] RAX: ffffffffffffffda RBX: 00007ffdf75e6c18 RCX: 00000000004431a9 [ 71.958627][ T8423] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 71.966951][ T8423] RBP: 0000000000000003 R08: 0000000020000100 R09: 0000000000000014 [ 71.974909][ T8423] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdf75e6c20 [ 71.982873][ T8423] R13: 00007ffdf75e6c40 R14: 00000000004b8018 R15: 00000000004004b8 [ 71.991552][ T8423] Kernel Offset: disabled [ 71.995960][ T8423] Rebooting in 86400 seconds..