[ 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 '10.128.0.127' (ECDSA) to the list of known hosts. syzkaller login: [ 65.021593][ T26] audit: type=1400 audit(1589711977.278:8): avc: denied { execmem } for pid=7167 comm="syz-executor526" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 65.056026][ T7168] IPVS: ftp: loaded support on port[0] = 21 [ 65.151008][ T7168] chnl_net:caif_netlink_parms(): no params data found [ 65.203610][ T7168] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.212615][ T7168] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.221353][ T7168] device bridge_slave_0 entered promiscuous mode [ 65.230932][ T7168] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.238133][ T7168] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.246575][ T7168] device bridge_slave_1 entered promiscuous mode [ 65.268131][ T7168] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.280066][ T7168] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.303733][ T7168] team0: Port device team_slave_0 added [ 65.312473][ T7168] team0: Port device team_slave_1 added [ 65.331106][ T7168] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.338068][ T7168] 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. [ 65.365420][ T7168] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.378360][ T7168] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.386593][ T7168] 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. [ 65.414267][ T7168] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.502850][ T7168] device hsr_slave_0 entered promiscuous mode [ 65.549849][ T7168] device hsr_slave_1 entered promiscuous mode [ 65.703899][ T7168] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.752480][ T7168] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.812478][ T7168] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.871696][ T7168] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.924809][ T7168] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.932149][ T7168] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.940160][ T7168] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.947251][ T7168] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.996115][ T7168] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.011283][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.021896][ T3083] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.030767][ T3083] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.039901][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.054087][ T7168] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.065544][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.076066][ T2731] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.083416][ T2731] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.101661][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.111301][ T3082] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.118464][ T3082] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.141887][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.152042][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.164624][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.173455][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.183614][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.196622][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.205820][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.220772][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.241157][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.250442][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.268227][ T7168] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.289635][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.298327][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.320137][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.331414][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.345497][ T7168] device veth0_vlan entered promiscuous mode [ 66.355924][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.365780][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.381576][ T7168] device veth1_vlan entered promiscuous mode [ 66.405809][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.415190][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.426951][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.442856][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.456277][ T7168] device veth0_macvtap entered promiscuous mode [ 66.472108][ T7168] device veth1_macvtap entered promiscuous mode [ 66.502488][ T7168] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.510742][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.524085][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.533877][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.544271][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.556655][ T7168] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.565529][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.576229][ T3082] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 66.781633][ T7377] device ip6gretap0 entered promiscuous mode [ 66.843261][ T7377] device ip6gretap0 left promiscuous mode [ 67.001675][ T7380] sysctl duplicate entry: /net/ipv4/neigh/hsr1//mcast_solicit [ 67.011019][ T7380] CPU: 0 PID: 7380 Comm: syz-executor526 Not tainted 5.7.0-rc5-syzkaller #0 [ 67.019774][ T7380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.030517][ T7380] Call Trace: [ 67.033855][ T7380] dump_stack+0x188/0x20d [ 67.038348][ T7380] __register_sysctl_table+0x801/0xef0 [ 67.043820][ T7380] neigh_sysctl_register+0x347/0x680 [ 67.049581][ T7380] ? neigh_stat_seq_show+0x3f0/0x3f0 [ 67.054865][ T7380] ? lock_downgrade+0x840/0x840 [ 67.060542][ T7380] ? mark_held_locks+0x9f/0xe0 [ 67.065479][ T7380] ? __local_bh_enable_ip+0x159/0x270 [ 67.077368][ T7380] devinet_sysctl_register+0xb1/0x230 [ 67.082728][ T7380] inetdev_init+0x227/0x4b0 [ 67.087214][ T7380] inetdev_event+0xfdb/0x15b0 [ 67.092050][ T7380] ? update_gid_event_work_handler+0xb0/0xb0 [ 67.099271][ T7380] ? add_netdev_ips+0x40/0x40 [ 67.104226][ T7380] ? upper_device_filter+0x1a0/0x1a0 [ 67.110032][ T7380] ? is_ndev_for_default_gid_filter.part.0+0x250/0x250 [ 67.116956][ T7380] ? inetdev_init+0x4b0/0x4b0 [ 67.121710][ T7380] ? is_eth_port_of_netdev_filter.part.0+0x2c0/0x2c0 [ 67.129163][ T7380] ? skb_dequeue+0x153/0x1c0 [ 67.133920][ T7380] ? notifier_call_chain+0xc0/0x230 [ 67.139541][ T7380] notifier_call_chain+0xc0/0x230 [ 67.149792][ T7380] call_netdevice_notifiers_info+0xb5/0x130 [ 67.155672][ T7380] register_netdevice+0xd70/0x10b0 [ 67.160944][ T7380] ? netdev_change_features+0xb0/0xb0 [ 67.166373][ T7380] ? hsr_add_port+0x4f4/0x790 [ 67.172965][ T7380] hsr_dev_finalize+0x516/0x746 [ 67.177905][ T7380] hsr_newlink+0x27c/0x520 [ 67.182512][ T7380] ? hsr_fill_info+0x2d0/0x2d0 [ 67.187452][ T7380] ? rtnl_create_link+0x184/0xac0 [ 67.192650][ T7380] ? hsr_fill_info+0x2d0/0x2d0 [ 67.197798][ T7380] __rtnl_newlink+0xf18/0x1590 [ 67.203460][ T7380] ? rtnl_link_unregister+0x240/0x240 [ 67.208928][ T7380] ? is_bpf_text_address+0xcb/0x160 [ 67.214200][ T7380] ? kernel_text_address+0x6e/0xe0 [ 67.221443][ T7380] ? __kernel_text_address+0x9/0x30 [ 67.228656][ T7380] ? unwind_get_return_address+0x5a/0xa0 [ 67.234826][ T7380] ? profile_setup.cold+0xc1/0xc1 [ 67.240052][ T7380] ? arch_stack_walk+0x97/0xf0 [ 67.245012][ T7380] ? stack_trace_save+0x8c/0xc0 [ 67.249861][ T7380] ? stack_trace_consume_entry+0x160/0x160 [ 67.255775][ T7380] ? rtnl_newlink+0x46/0xa0 [ 67.260786][ T7380] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 67.266321][ T7380] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.272282][ T7380] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 67.278080][ T7380] rtnl_newlink+0x64/0xa0 [ 67.282386][ T7380] ? __rtnl_newlink+0x1590/0x1590 [ 67.287386][ T7380] rtnetlink_rcv_msg+0x44e/0xad0 [ 67.292320][ T7380] ? rtnl_bridge_getlink+0x870/0x870 [ 67.297597][ T7380] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 67.302858][ T7380] ? __copy_skb_header+0x270/0x5b0 [ 67.307959][ T7380] ? skb_splice_bits+0x1a0/0x1a0 [ 67.312885][ T7380] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 67.318758][ T7380] ? kmem_cache_alloc+0x261/0x740 [ 67.323769][ T7380] netlink_rcv_skb+0x15a/0x410 [ 67.328511][ T7380] ? rtnl_bridge_getlink+0x870/0x870 [ 67.333781][ T7380] ? netlink_ack+0xa10/0xa10 [ 67.338367][ T7380] netlink_unicast+0x537/0x740 [ 67.343119][ T7380] ? netlink_attachskb+0x810/0x810 [ 67.348214][ T7380] ? _copy_from_iter_full+0x25c/0x870 [ 67.354184][ T7380] netlink_sendmsg+0x882/0xe10 [ 67.358942][ T7380] ? netlink_unicast+0x740/0x740 [ 67.363882][ T7380] ? netlink_unicast+0x740/0x740 [ 67.368809][ T7380] sock_sendmsg+0xcf/0x120 [ 67.373201][ T7380] ____sys_sendmsg+0x6bf/0x7e0 [ 67.377951][ T7380] ? kernel_sendmsg+0x50/0x50 [ 67.383057][ T7380] ___sys_sendmsg+0x100/0x170 [ 67.387709][ T7380] ? sendmsg_copy_msghdr+0x70/0x70 [ 67.393155][ T7380] ? __fget_files+0x32f/0x500 [ 67.397819][ T7380] ? ksys_dup3+0x3c0/0x3c0 [ 67.402218][ T7380] ? mark_held_locks+0xe0/0xe0 [ 67.406959][ T7380] ? __fget_light+0x20e/0x270 [ 67.411625][ T7380] __sys_sendmsg+0xec/0x1b0 [ 67.416154][ T7380] ? __sys_sendmsg_sock+0xb0/0xb0 [ 67.421208][ T7380] ? trace_hardirqs_off_caller+0x55/0x230 [ 67.426929][ T7380] ? do_syscall_64+0x21/0x7d0 [ 67.431592][ T7380] do_syscall_64+0xf6/0x7d0 [ 67.436080][ T7380] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 67.441956][ T7380] RIP: 0033:0x449409 [ 67.445825][ T7380] Code: e8 cc 14 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 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.467425][ T7380] RSP: 002b:00007f8c3b0b5db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 67.475822][ T7380] RAX: ffffffffffffffda RBX: 00000000006dfc98 RCX: 0000000000449409 [ 67.484838][ T7380] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 [ 67.494130][ T7380] RBP: 00000000006dfc90 R08: 0000000000000014 R09: 0000000000000000 [ 67.502359][ T7380] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dfc9c [ 67.511004][ T7380] R13: 00007fff342f381f R14: 00007f8c3b0b69c0 R15: 00000000006dfc9c [ 67.670609][ T7383] sysctl duplicate entry: /net/ipv4/conf/hsr1//forwarding [ 67.678383][ T7383] CPU: 1 PID: 7383 Comm: syz-executor526 Not tainted 5.7.0-rc5-syzkaller #0 [ 67.687369][ T7383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.698178][ T7383] Call Trace: [ 67.701713][ T7383] dump_stack+0x188/0x20d [ 67.706038][ T7383] __register_sysctl_table+0x801/0xef0 [ 67.711990][ T7383] __devinet_sysctl_register+0x156/0x280 [ 67.717807][ T7383] ? devinet_exit_net+0x170/0x170 [ 67.723605][ T7383] ? mark_held_locks+0x9f/0xe0 [ 67.728962][ T7383] ? __local_bh_enable_ip+0x159/0x270 [ 67.735054][ T7383] devinet_sysctl_register+0x160/0x230 [ 67.740915][ T7383] inetdev_init+0x227/0x4b0 [ 67.745622][ T7383] inetdev_event+0xfdb/0x15b0 [ 67.751651][ T7383] ? update_gid_event_work_handler+0xb0/0xb0 [ 67.758446][ T7383] ? add_netdev_ips+0x40/0x40 [ 67.763189][ T7383] ? upper_device_filter+0x1a0/0x1a0 [ 67.768469][ T7383] ? is_ndev_for_default_gid_filter.part.0+0x250/0x250 [ 67.775575][ T7383] ? inetdev_init+0x4b0/0x4b0 [ 67.780243][ T7383] ? is_eth_port_of_netdev_filter.part.0+0x2c0/0x2c0 [ 67.787586][ T7383] ? skb_dequeue+0x153/0x1c0 [ 67.792372][ T7383] ? notifier_call_chain+0xc0/0x230 [ 67.798026][ T7383] notifier_call_chain+0xc0/0x230 [ 67.803581][ T7383] call_netdevice_notifiers_info+0xb5/0x130 [ 67.809700][ T7383] register_netdevice+0xd70/0x10b0 [ 67.816284][ T7383] ? netdev_change_features+0xb0/0xb0 [ 67.821833][ T7383] ? hsr_add_port+0x4f4/0x790 [ 67.826492][ T7383] hsr_dev_finalize+0x516/0x746 [ 67.831850][ T7383] hsr_newlink+0x27c/0x520 [ 67.836268][ T7383] ? hsr_fill_info+0x2d0/0x2d0 [ 67.841880][ T7383] ? rtnl_create_link+0x184/0xac0 [ 67.847217][ T7383] ? hsr_fill_info+0x2d0/0x2d0 [ 67.851974][ T7383] __rtnl_newlink+0xf18/0x1590 [ 67.858890][ T7383] ? rtnl_link_unregister+0x240/0x240 [ 67.864439][ T7383] ? is_bpf_text_address+0xcb/0x160 [ 67.869642][ T7383] ? kernel_text_address+0x6e/0xe0 [ 67.874736][ T7383] ? __kernel_text_address+0x9/0x30 [ 67.879916][ T7383] ? unwind_get_return_address+0x5a/0xa0 [ 67.885730][ T7383] ? profile_setup.cold+0xc1/0xc1 [ 67.890744][ T7383] ? arch_stack_walk+0x97/0xf0 [ 67.895965][ T7383] ? stack_trace_save+0x8c/0xc0 [ 67.902368][ T7383] ? stack_trace_consume_entry+0x160/0x160 [ 67.909709][ T7383] ? rtnl_newlink+0x46/0xa0 [ 67.914730][ T7383] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 67.920704][ T7383] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.927042][ T7383] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 67.933200][ T7383] rtnl_newlink+0x64/0xa0 [ 67.937718][ T7383] ? __rtnl_newlink+0x1590/0x1590 [ 67.942942][ T7383] rtnetlink_rcv_msg+0x44e/0xad0 [ 67.948267][ T7383] ? rtnl_bridge_getlink+0x870/0x870 [ 67.953768][ T7383] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 67.959669][ T7383] ? __copy_skb_header+0x270/0x5b0 [ 67.964860][ T7383] ? skb_splice_bits+0x1a0/0x1a0 [ 67.972905][ T7383] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 67.979009][ T7383] ? kmem_cache_alloc+0x261/0x740 [ 67.984112][ T7383] netlink_rcv_skb+0x15a/0x410 [ 67.989677][ T7383] ? rtnl_bridge_getlink+0x870/0x870 [ 67.997060][ T7383] ? netlink_ack+0xa10/0xa10 [ 68.003389][ T7383] netlink_unicast+0x537/0x740 [ 68.008276][ T7383] ? netlink_attachskb+0x810/0x810 [ 68.014883][ T7383] ? _copy_from_iter_full+0x25c/0x870 [ 68.022298][ T7383] netlink_sendmsg+0x882/0xe10 [ 68.028386][ T7383] ? netlink_unicast+0x740/0x740 [ 68.034172][ T7383] ? netlink_unicast+0x740/0x740 [ 68.039317][ T7383] sock_sendmsg+0xcf/0x120 [ 68.043717][ T7383] ____sys_sendmsg+0x6bf/0x7e0 [ 68.048466][ T7383] ? kernel_sendmsg+0x50/0x50 [ 68.053237][ T7383] ___sys_sendmsg+0x100/0x170 [ 68.057899][ T7383] ? sendmsg_copy_msghdr+0x70/0x70 [ 68.063152][ T7383] ? __fget_files+0x32f/0x500 [ 68.067945][ T7383] ? ksys_dup3+0x3c0/0x3c0 [ 68.072744][ T7383] ? mark_held_locks+0xe0/0xe0 [ 68.077494][ T7383] ? __fget_light+0x20e/0x270 [ 68.082163][ T7383] __sys_sendmsg+0xec/0x1b0 [ 68.086734][ T7383] ? __sys_sendmsg_sock+0xb0/0xb0 [ 68.091885][ T7383] ? trace_hardirqs_off_caller+0x55/0x230 [ 68.097687][ T7383] ? do_syscall_64+0x21/0x7d0 [ 68.103526][ T7383] do_syscall_64+0xf6/0x7d0 [ 68.108142][ T7383] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 68.114184][ T7383] RIP: 0033:0x449409 [ 68.118161][ T7383] Code: e8 cc 14 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 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.137849][ T7383] RSP: 002b:00007f8c3b052db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.146256][ T7383] RAX: ffffffffffffffda RBX: 00000000006dfcc8 RCX: 0000000000449409 [ 68.155089][ T7383] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000014 [ 68.167978][ T7383] RBP: 00000000006dfcc0 R08: 0000000000000008 R09: 0000000000000000 [ 68.177182][ T7383] R10: 0000000000000002 R11: 0000000000000246 R12: 00000000006dfccc [ 68.185595][ T7383] R13: 00007fff342f381f R14: 00007f8c3b0539c0 R15: 00000000006dfccc [ 68.349858][ T7381] ------------[ cut here ]------------ [ 68.356385][ T7381] proc_dir_entry 'dev_snmp6/hsr1' already registered [ 68.363350][ T7381] WARNING: CPU: 0 PID: 7381 at fs/proc/generic.c:362 proc_register+0x40b/0x580 [ 68.372289][ T7381] Kernel panic - not syncing: panic_on_warn set ... [ 68.378888][ T7381] CPU: 0 PID: 7381 Comm: syz-executor526 Not tainted 5.7.0-rc5-syzkaller #0 [ 68.387562][ T7381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.397687][ T7381] Call Trace: [ 68.400961][ T7381] dump_stack+0x188/0x20d [ 68.405269][ T7381] ? proc_register+0x380/0x580 [ 68.410010][ T7381] panic+0x2e3/0x75c [ 68.413882][ T7381] ? add_taint.cold+0x16/0x16 [ 68.418551][ T7381] ? __probe_kernel_read+0x188/0x1d0 [ 68.423820][ T7381] ? __warn.cold+0x14/0x35 [ 68.428219][ T7381] ? __warn+0xd5/0x1c8 [ 68.432277][ T7381] ? proc_register+0x40b/0x580 [ 68.437272][ T7381] __warn.cold+0x2f/0x35 [ 68.442705][ T7381] ? proc_register+0x40b/0x580 [ 68.447444][ T7381] report_bug+0x27b/0x2f0 [ 68.451751][ T7381] do_error_trap+0x12b/0x220 [ 68.456315][ T7381] ? proc_register+0x40b/0x580 [ 68.461273][ T7381] do_invalid_op+0x32/0x40 [ 68.465903][ T7381] ? proc_register+0x40b/0x580 [ 68.470650][ T7381] invalid_op+0x23/0x30 [ 68.474791][ T7381] RIP: 0010:proc_register+0x40b/0x580 [ 68.480139][ T7381] Code: ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 5c 01 00 00 48 8b 04 24 48 c7 c7 e0 69 39 88 48 8b b0 d8 00 00 00 e8 dd cc 61 ff <0f> 0b 48 c7 c7 40 9f ac 89 e8 27 ea ed 05 48 8b 4c 24 28 48 b8 00 [ 68.501210][ T7381] RSP: 0018:ffffc90001f9ecc8 EFLAGS: 00010282 [ 68.507382][ T7381] RAX: 0000000000000000 RBX: ffff88809f861408 RCX: 0000000000000000 [ 68.515348][ T7381] RDX: 0000000000000000 RSI: ffffffff815ce751 RDI: fffff520003f3d8b [ 68.523306][ T7381] RBP: ffff888094e6d180 R08: ffff88809d8081c0 R09: ffffed1015cc66a9 [ 68.531260][ T7381] R10: ffff8880ae633547 R11: ffffed1015cc66a8 R12: 0000000000000000 [ 68.539316][ T7381] R13: dffffc0000000000 R14: ffff888086f578c0 R15: 0000000000000004 [ 68.547378][ T7381] ? vprintk_func+0x81/0x17e [ 68.552116][ T7381] ? proc_register+0x40b/0x580 [ 68.556883][ T7381] ? snmp6_seq_show+0x180/0x180 [ 68.561730][ T7381] proc_create_single_data+0xdb/0x130 [ 68.567176][ T7381] ? proc_create_seq_private+0x180/0x180 [ 68.572808][ T7381] ? kmem_cache_alloc_trace+0x390/0x7d0 [ 68.578499][ T7381] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 68.584403][ T7381] snmp6_register_dev+0xbe/0x140 [ 68.589329][ T7381] ipv6_add_dev+0x54b/0x10b0 [ 68.593899][ T7381] addrconf_notify+0x960/0x2310 [ 68.598738][ T7381] ? lock_downgrade+0x840/0x840 [ 68.603573][ T7381] ? tls_dev_event+0x100/0xc60 [ 68.608311][ T7381] ? mark_held_locks+0x9f/0xe0 [ 68.613052][ T7381] ? inet6_ifinfo_notify+0x150/0x150 [ 68.618323][ T7381] ? clusterip_netdev_event+0x465/0x640 [ 68.623959][ T7381] ? __local_bh_enable_ip+0x159/0x270 [ 68.629315][ T7381] ? clusterip_netdev_event+0x465/0x640 [ 68.634940][ T7381] ? tee_netdev_event+0x431/0x5d0 [ 68.639946][ T7381] ? ip6mr_device_event+0x1ab/0x220 [ 68.645190][ T7381] ? notifier_call_chain+0xc0/0x230 [ 68.650386][ T7381] notifier_call_chain+0xc0/0x230 [ 68.655409][ T7381] call_netdevice_notifiers_info+0xb5/0x130 [ 68.662675][ T7381] register_netdevice+0xd70/0x10b0 [ 68.667778][ T7381] ? netdev_change_features+0xb0/0xb0 [ 68.673131][ T7381] ? hsr_add_port+0x4f4/0x790 [ 68.677794][ T7381] hsr_dev_finalize+0x516/0x746 [ 68.682643][ T7381] hsr_newlink+0x27c/0x520 [ 68.687035][ T7381] ? hsr_fill_info+0x2d0/0x2d0 [ 68.691793][ T7381] ? rtnl_create_link+0x184/0xac0 [ 68.696809][ T7381] ? hsr_fill_info+0x2d0/0x2d0 [ 68.701567][ T7381] __rtnl_newlink+0xf18/0x1590 [ 68.706313][ T7381] ? rtnl_link_unregister+0x240/0x240 [ 68.711662][ T7381] ? is_bpf_text_address+0xcb/0x160 [ 68.716841][ T7381] ? kernel_text_address+0x6e/0xe0 [ 68.722205][ T7381] ? __kernel_text_address+0x9/0x30 [ 68.728781][ T7381] ? unwind_get_return_address+0x5a/0xa0 [ 68.735202][ T7381] ? profile_setup.cold+0xc1/0xc1 [ 68.740233][ T7381] ? arch_stack_walk+0x97/0xf0 [ 68.745262][ T7381] ? stack_trace_save+0x8c/0xc0 [ 68.751251][ T7381] ? stack_trace_consume_entry+0x160/0x160 [ 68.757202][ T7381] ? rtnl_newlink+0x46/0xa0 [ 68.762040][ T7381] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 68.768127][ T7381] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 68.774274][ T7381] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 68.780522][ T7381] rtnl_newlink+0x64/0xa0 [ 68.785266][ T7381] ? __rtnl_newlink+0x1590/0x1590 [ 68.791515][ T7381] rtnetlink_rcv_msg+0x44e/0xad0 [ 68.796893][ T7381] ? rtnl_bridge_getlink+0x870/0x870 [ 68.803146][ T7381] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 68.809557][ T7381] ? __copy_skb_header+0x270/0x5b0 [ 68.815994][ T7381] ? skb_splice_bits+0x1a0/0x1a0 [ 68.821101][ T7381] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 68.827207][ T7381] ? kmem_cache_alloc+0x261/0x740 [ 68.833370][ T7381] netlink_rcv_skb+0x15a/0x410 [ 68.838651][ T7381] ? rtnl_bridge_getlink+0x870/0x870 [ 68.845027][ T7381] ? netlink_ack+0xa10/0xa10 [ 68.850136][ T7381] netlink_unicast+0x537/0x740 [ 68.855035][ T7381] ? netlink_attachskb+0x810/0x810 [ 68.860270][ T7381] ? _copy_from_iter_full+0x25c/0x870 [ 68.865646][ T7381] netlink_sendmsg+0x882/0xe10 [ 68.870746][ T7381] ? netlink_unicast+0x740/0x740 [ 68.875794][ T7381] ? netlink_unicast+0x740/0x740 [ 68.880913][ T7381] sock_sendmsg+0xcf/0x120 [ 68.885317][ T7381] ____sys_sendmsg+0x6bf/0x7e0 [ 68.891309][ T7381] ? kernel_sendmsg+0x50/0x50 [ 68.895988][ T7381] ___sys_sendmsg+0x100/0x170 [ 68.901879][ T7381] ? sendmsg_copy_msghdr+0x70/0x70 [ 68.907359][ T7381] ? __fget_files+0x32f/0x500 [ 68.912195][ T7381] ? ksys_dup3+0x3c0/0x3c0 [ 68.919240][ T7381] ? lock_downgrade+0x840/0x840 [ 68.924092][ T7381] ? __fget_light+0x20e/0x270 [ 68.929097][ T7381] __sys_sendmsg+0xec/0x1b0 [ 68.933574][ T7381] ? __sys_sendmsg_sock+0xb0/0xb0 [ 68.938584][ T7381] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 68.945169][ T7381] ? __x64_sys_futex+0x380/0x4f0 [ 68.950632][ T7381] ? trace_hardirqs_off_caller+0x55/0x230 [ 68.956679][ T7381] ? do_syscall_64+0x21/0x7d0 [ 68.961551][ T7381] do_syscall_64+0xf6/0x7d0 [ 68.966588][ T7381] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 68.973448][ T7381] RIP: 0033:0x449409 [ 68.977543][ T7381] Code: e8 cc 14 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 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 69.000813][ T7381] RSP: 002b:00007f8c3b094db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 69.009338][ T7381] RAX: ffffffffffffffda RBX: 00000000006dfca8 RCX: 0000000000449409 [ 69.018306][ T7381] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 000000000000000e [ 69.028431][ T7381] RBP: 00000000006dfca0 R08: 0000000000000014 R09: 0000000000000000 [ 69.038061][ T7381] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dfcac [ 69.046323][ T7381] R13: 00007fff342f381f R14: 00007f8c3b0959c0 R15: 00000000006dfcac [ 69.058222][ T7381] Kernel Offset: disabled [ 69.062732][ T7381] Rebooting in 86400 seconds..