[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.109' (ECDSA) to the list of known hosts. syzkaller login: [ 135.399521][ T8232] IPVS: ftp: loaded support on port[0] = 21 [ 135.555291][ T8232] chnl_net:caif_netlink_parms(): no params data found [ 135.640874][ T8232] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.648209][ T8232] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.657653][ T8232] device bridge_slave_0 entered promiscuous mode [ 135.668280][ T8232] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.675803][ T8232] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.685636][ T8232] device bridge_slave_1 entered promiscuous mode [ 135.718493][ T8232] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 135.731569][ T8232] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 135.765260][ T8232] team0: Port device team_slave_0 added [ 135.775180][ T8232] team0: Port device team_slave_1 added [ 135.804803][ T8232] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 135.811999][ T8232] 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. [ 135.838478][ T8232] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 135.851739][ T8232] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 135.858965][ T8232] 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. [ 135.886877][ T8232] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 135.929407][ T8232] device hsr_slave_0 entered promiscuous mode [ 135.938990][ T8232] device hsr_slave_1 entered promiscuous mode [ 136.119307][ T8232] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 136.137947][ T8232] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 136.165797][ T8232] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 136.205512][ T8232] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 136.351311][ T8232] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.358558][ T8232] bridge0: port 2(bridge_slave_1) entered forwarding state [ 136.366567][ T8232] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.374061][ T8232] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.450925][ T8232] 8021q: adding VLAN 0 to HW filter on device bond0 [ 136.471453][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 136.484251][ T18] bridge0: port 1(bridge_slave_0) entered disabled state [ 136.493166][ T18] bridge0: port 2(bridge_slave_1) entered disabled state [ 136.506606][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 136.524332][ T8232] 8021q: adding VLAN 0 to HW filter on device team0 [ 136.538990][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 136.549203][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 136.558490][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.565923][ T8439] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.582312][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 136.591842][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 136.601237][ T2020] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.608541][ T2020] bridge0: port 2(bridge_slave_1) entered forwarding state [ 136.626108][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 136.641757][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 136.664435][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 136.674695][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 136.686052][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 136.714391][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 136.725199][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 136.735418][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 136.745001][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 136.754498][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 136.763368][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 136.779295][ T8232] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 136.816129][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 136.824082][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 136.840561][ T8232] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 136.874423][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 136.884386][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 136.917186][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 136.926857][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 136.938600][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 136.947854][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 136.962823][ T8232] device veth0_vlan entered promiscuous mode [ 136.981435][ T8232] device veth1_vlan entered promiscuous mode [ 137.021246][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 137.030563][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 137.040172][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 137.049963][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 137.067548][ T8232] device veth0_macvtap entered promiscuous mode [ 137.080953][ T8232] device veth1_macvtap entered promiscuous mode [ 137.111519][ T8232] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 137.119497][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 137.129093][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 137.138205][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 137.148188][ T2020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 137.165765][ T8232] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 137.175235][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 137.184786][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 137.202405][ T8232] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 137.211503][ T8232] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 137.221554][ T8232] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 137.230652][ T8232] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 137.342343][ C1] ===================================================== [ 137.349310][ C1] BUG: KMSAN: uninit-value in ip_rcv_core+0xf4c/0x1480 [ 137.356208][ C1] CPU: 1 PID: 8441 Comm: syz-executor085 Not tainted 5.11.0-rc7-syzkaller #0 [ 137.365789][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.375857][ C1] Call Trace: [ 137.379151][ C1] [ 137.381999][ C1] dump_stack+0x21c/0x280 [ 137.386353][ C1] kmsan_report+0xfb/0x1e0 [ 137.390788][ C1] __msan_warning+0x5f/0xa0 [ 137.395310][ C1] ip_rcv_core+0xf4c/0x1480 [ 137.399834][ C1] ip_rcv+0xc7/0x820 [ 137.403745][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.408965][ C1] __netif_receive_skb+0x1ec/0x640 [ 137.414098][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.420273][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 137.425925][ C1] process_backlog+0x517/0xbd0 [ 137.430710][ C1] ? native_apic_mem_write+0x45/0x90 [ 137.436016][ C1] ? rps_trigger_softirq+0x2e0/0x2e0 [ 137.441323][ C1] napi_poll+0x428/0x15c0 [ 137.445676][ C1] net_rx_action+0x34c/0xd30 [ 137.450287][ C1] ? net_tx_action+0xd30/0xd30 [ 137.455067][ C1] __do_softirq+0x1b9/0x715 [ 137.459589][ C1] asm_call_irq_on_stack+0xf/0x20 [ 137.465846][ C1] [ 137.470082][ C1] do_softirq_own_stack+0x6e/0x90 [ 137.475126][ C1] __local_bh_enable_ip+0x184/0x1d0 [ 137.480342][ C1] local_bh_enable+0x36/0x40 [ 137.484943][ C1] __dev_queue_xmit+0x3b3e/0x45c0 [ 137.489988][ C1] dev_queue_xmit+0x4b/0x60 [ 137.494501][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 137.499866][ C1] packet_sendmsg+0x8778/0x9a60 [ 137.504725][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.510526][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.515711][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.521346][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.526536][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.532329][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 137.538492][ C1] ? packet_getsockopt+0x1120/0x1120 [ 137.543774][ C1] __sys_sendto+0x9ea/0xc60 [ 137.548362][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.553547][ C1] __se_sys_sendto+0x107/0x130 [ 137.558351][ C1] __x64_sys_sendto+0x6e/0x90 [ 137.563044][ C1] do_syscall_64+0x9f/0x140 [ 137.567537][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 137.573438][ C1] RIP: 0033:0x443789 [ 137.577417][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 [ 137.597040][ C1] RSP: 002b:00007ffd03b25cf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 137.605470][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443789 [ 137.613458][ C1] RDX: 000000000000000e RSI: 0000000020000200 RDI: 0000000000000003 [ 137.621458][ C1] RBP: 0000000000000000 R08: 0000000020000040 R09: 0000000000000014 [ 137.629429][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd03b25d20 [ 137.637413][ C1] R13: 00000000000f4240 R14: 00000000004b8018 R15: 00000000004004b8 [ 137.645378][ C1] [ 137.647695][ C1] Uninit was stored to memory at: [ 137.652695][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 137.658412][ C1] __msan_chain_origin+0x57/0xa0 [ 137.664416][ C1] iptunnel_xmit+0xbd6/0xf20 [ 137.669023][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 137.674151][ C1] geneve_xmit+0x209e/0x3c20 [ 137.679805][ C1] xmit_one+0x2b6/0x760 [ 137.683977][ C1] __dev_queue_xmit+0x3426/0x45c0 [ 137.688999][ C1] dev_queue_xmit+0x4b/0x60 [ 137.693576][ C1] packet_sendmsg+0x8778/0x9a60 [ 137.698442][ C1] __sys_sendto+0x9ea/0xc60 [ 137.702938][ C1] __se_sys_sendto+0x107/0x130 [ 137.707717][ C1] __x64_sys_sendto+0x6e/0x90 [ 137.712388][ C1] do_syscall_64+0x9f/0x140 [ 137.716960][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 137.723120][ C1] [ 137.725442][ C1] Uninit was created at: [ 137.729676][ C1] kmsan_internal_poison_shadow+0x5c/0xf0 [ 137.735402][ C1] kmsan_slab_alloc+0x8d/0xe0 [ 137.740091][ C1] __kmalloc_node_track_caller+0xa37/0x1430 [ 137.746169][ C1] __alloc_skb+0x2f8/0xb30 [ 137.750716][ C1] alloc_skb_with_frags+0x1f3/0xc10 [ 137.755977][ C1] sock_alloc_send_pskb+0xdc1/0xf90 [ 137.761238][ C1] packet_sendmsg+0x6aab/0x9a60 [ 137.766145][ C1] __sys_sendto+0x9ea/0xc60 [ 137.770646][ C1] __se_sys_sendto+0x107/0x130 [ 137.775411][ C1] __x64_sys_sendto+0x6e/0x90 [ 137.780107][ C1] do_syscall_64+0x9f/0x140 [ 137.784602][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 137.791106][ C1] ===================================================== [ 137.798507][ C1] Disabling lock debugging due to kernel taint [ 137.804647][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 137.811221][ C1] CPU: 1 PID: 8441 Comm: syz-executor085 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 137.821433][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.831669][ C1] Call Trace: [ 137.834944][ C1] [ 137.837779][ C1] dump_stack+0x21c/0x280 [ 137.842137][ C1] panic+0x4c6/0xea7 [ 137.846129][ C1] ? add_taint+0x17c/0x210 [ 137.850835][ C1] kmsan_report+0x1de/0x1e0 [ 137.855495][ C1] __msan_warning+0x5f/0xa0 [ 137.860011][ C1] ip_rcv_core+0xf4c/0x1480 [ 137.865453][ C1] ip_rcv+0xc7/0x820 [ 137.869371][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.874712][ C1] __netif_receive_skb+0x1ec/0x640 [ 137.879829][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.885645][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 137.891316][ C1] process_backlog+0x517/0xbd0 [ 137.896079][ C1] ? native_apic_mem_write+0x45/0x90 [ 137.901368][ C1] ? rps_trigger_softirq+0x2e0/0x2e0 [ 137.906649][ C1] napi_poll+0x428/0x15c0 [ 137.910979][ C1] net_rx_action+0x34c/0xd30 [ 137.915570][ C1] ? net_tx_action+0xd30/0xd30 [ 137.920355][ C1] __do_softirq+0x1b9/0x715 [ 137.924858][ C1] asm_call_irq_on_stack+0xf/0x20 [ 137.930014][ C1] [ 137.932939][ C1] do_softirq_own_stack+0x6e/0x90 [ 137.938277][ C1] __local_bh_enable_ip+0x184/0x1d0 [ 137.943543][ C1] local_bh_enable+0x36/0x40 [ 137.948273][ C1] __dev_queue_xmit+0x3b3e/0x45c0 [ 137.953581][ C1] dev_queue_xmit+0x4b/0x60 [ 137.958096][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 137.963376][ C1] packet_sendmsg+0x8778/0x9a60 [ 137.968221][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.974075][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.979273][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.984912][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.990143][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.995957][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.002165][ C1] ? packet_getsockopt+0x1120/0x1120 [ 138.007759][ C1] __sys_sendto+0x9ea/0xc60 [ 138.012371][ C1] ? kmsan_get_metadata+0x116/0x180 [ 138.017597][ C1] __se_sys_sendto+0x107/0x130 [ 138.022370][ C1] __x64_sys_sendto+0x6e/0x90 [ 138.027482][ C1] do_syscall_64+0x9f/0x140 [ 138.032000][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 138.037893][ C1] RIP: 0033:0x443789 [ 138.041879][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 [ 138.061808][ C1] RSP: 002b:00007ffd03b25cf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 138.070443][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443789 [ 138.078502][ C1] RDX: 000000000000000e RSI: 0000000020000200 RDI: 0000000000000003 [ 138.086619][ C1] RBP: 0000000000000000 R08: 0000000020000040 R09: 0000000000000014 [ 138.094636][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd03b25d20 [ 138.102603][ C1] R13: 00000000000f4240 R14: 00000000004b8018 R15: 00000000004004b8 [ 138.111564][ C1] Kernel Offset: disabled [ 138.115910][ C1] Rebooting in 86400 seconds..