syzkaller login: [ 69.914709][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 69.928924][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 69.932933][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:8515' (ECDSA) to the list of known hosts. 1970/01/01 00:01:42 fuzzer started 1970/01/01 00:01:44 connecting to host at localhost:37473 1970/01/01 00:01:44 checking machine... 1970/01/01 00:01:44 checking revisions... 1970/01/01 00:01:46 testing simple program... [ 106.356677][ T3062] cgroup: Unknown subsys name 'net' [ 106.743947][ T3062] cgroup: Unknown subsys name 'rlimit' executing program [ 110.713359][ T3065] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 110.739000][ T3065] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link executing program [ 112.379779][ T3065] device hsr_slave_0 entered promiscuous mode [ 112.420742][ T3065] device hsr_slave_1 entered promiscuous mode [ 113.465673][ T3065] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 113.535487][ T3065] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 113.600445][ T3065] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 113.650048][ T3065] netdevsim netdevsim0 netdevsim3: renamed from eth3 executing program [ 114.860494][ T3065] 8021q: adding VLAN 0 to HW filter on device bond0 [ 114.915733][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 114.932150][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 115.812448][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 115.824544][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 115.900574][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 115.905678][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 115.954174][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 116.002157][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 116.095556][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 116.100442][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 116.139555][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 116.144447][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 116.189043][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 116.914252][ T1038] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 116.915652][ T1038] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 118.751643][ T1038] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 118.755444][ T1038] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 119.650658][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 119.664037][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 119.681756][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 119.689078][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 119.710578][ T3065] device veth0_vlan entered promiscuous mode [ 119.755658][ T3065] device veth1_vlan entered promiscuous mode [ 119.762942][ T1038] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready executing program [ 119.910398][ T3404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 119.914369][ T3404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 119.953121][ T3065] device veth0_macvtap entered promiscuous mode [ 119.980852][ T3065] device veth1_macvtap entered promiscuous mode [ 120.078388][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 120.082974][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 120.094490][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 120.101157][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 120.135180][ T3404] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 120.139750][ T3404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 120.173652][ T3065] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 120.174583][ T3065] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 120.174975][ T3065] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 120.175352][ T3065] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:02:00 building call list... [ 121.710502][ T2215] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 122.039164][ T2215] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 122.439261][ T2215] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 122.664451][ T2215] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 125.097482][ T2215] device hsr_slave_0 left promiscuous mode [ 125.148920][ T2215] device hsr_slave_1 left promiscuous mode [ 125.421774][ T2215] device veth1_macvtap left promiscuous mode [ 125.423287][ T2215] device veth0_macvtap left promiscuous mode [ 125.425163][ T2215] device veth1_vlan left promiscuous mode [ 125.438154][ T2215] device veth0_vlan left promiscuous mode executing program [ 127.724881][ T2215] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 127.911812][ T2215] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 128.331545][ T2215] bond0 (unregistering): Released all slaves executing program executing program executing program executing program [ 138.306515][ T3053] can: request_module (can-proto-0) failed. [ 138.478008][ T3053] can: request_module (can-proto-0) failed. [ 138.598978][ T3053] can: request_module (can-proto-0) failed. [ 139.687047][ T2215] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 139.687945][ T2215] leaked reference. [ 139.688773][ T2215] ipv6_add_dev+0x300/0xeec [ 139.689348][ T2215] addrconf_notify+0x3ac/0x1080 [ 139.689655][ T2215] notifier_call_chain+0xc0/0x180 [ 139.690128][ T2215] raw_notifier_call_chain+0x18/0x24 [ 139.690388][ T2215] call_netdevice_notifiers_info+0x80/0xe0 [ 139.690696][ T2215] register_netdevice+0xa7c/0x1094 [ 139.690944][ T2215] register_netdev+0x24/0x4c [ 139.691182][ T2215] loopback_net_init+0x6c/0x124 [ 139.691436][ T2215] ops_init+0x8c/0x46c [ 139.691664][ T2215] setup_net+0x638/0xbec [ 139.691894][ T2215] copy_net_ns+0x1fc/0x560 [ 139.692127][ T2215] create_new_namespaces+0x300/0x840 [ 139.692376][ T2215] unshare_nsproxy_namespaces+0x7c/0x174 [ 139.692625][ T2215] ksys_unshare+0x284/0x580 [ 139.692866][ T2215] __arm64_sys_unshare+0x30/0x50 [ 139.693112][ T2215] invoke_syscall+0x6c/0x260 executing program executing program executing program [ 149.788354][ T2215] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 149.788980][ T2215] leaked reference. [ 149.789220][ T2215] ipv6_add_dev+0x300/0xeec [ 149.789522][ T2215] addrconf_notify+0x3ac/0x1080 [ 149.789755][ T2215] notifier_call_chain+0xc0/0x180 [ 149.790011][ T2215] raw_notifier_call_chain+0x18/0x24 [ 149.790383][ T2215] call_netdevice_notifiers_info+0x80/0xe0 [ 149.790640][ T2215] register_netdevice+0xa7c/0x1094 [ 149.790874][ T2215] register_netdev+0x24/0x4c [ 149.791101][ T2215] loopback_net_init+0x6c/0x124 [ 149.791474][ T2215] ops_init+0x8c/0x46c [ 149.791732][ T2215] setup_net+0x638/0xbec [ 149.791956][ T2215] copy_net_ns+0x1fc/0x560 [ 149.792213][ T2215] create_new_namespaces+0x300/0x840 [ 149.792448][ T2215] unshare_nsproxy_namespaces+0x7c/0x174 [ 149.792796][ T2215] ksys_unshare+0x284/0x580 [ 149.793042][ T2215] __arm64_sys_unshare+0x30/0x50 [ 149.793282][ T2215] invoke_syscall+0x6c/0x260 executing program [ 151.698885][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 151.701920][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 151.704802][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 151.710379][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 159.848410][ T2215] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 159.849129][ T2215] leaked reference. [ 159.849670][ T2215] ipv6_add_dev+0x300/0xeec [ 159.850102][ T2215] addrconf_notify+0x3ac/0x1080 [ 159.850486][ T2215] notifier_call_chain+0xc0/0x180 [ 159.850897][ T2215] raw_notifier_call_chain+0x18/0x24 [ 159.851274][ T2215] call_netdevice_notifiers_info+0x80/0xe0 [ 159.851676][ T2215] register_netdevice+0xa7c/0x1094 [ 159.852093][ T2215] register_netdev+0x24/0x4c [ 159.852471][ T2215] loopback_net_init+0x6c/0x124 [ 159.852868][ T2215] ops_init+0x8c/0x46c [ 159.853233][ T2215] setup_net+0x638/0xbec [ 159.853621][ T2215] copy_net_ns+0x1fc/0x560 [ 159.853999][ T2215] create_new_namespaces+0x300/0x840 [ 159.854383][ T2215] unshare_nsproxy_namespaces+0x7c/0x174 [ 159.854919][ T2215] ksys_unshare+0x284/0x580 [ 159.855269][ T2215] __arm64_sys_unshare+0x30/0x50 [ 159.855509][ T2215] invoke_syscall+0x6c/0x260 VM DIAGNOSIS: 11:54:22 Registers: info registers vcpu 0 PC=ffff80000b5fac08 X00=ffff80000b5fac00 X01=0000000000000000 X02=1fffe0000d52759d X03=0000000000000001 X04=ffff800019fc75c0 X05=ffff7000033f8e84 X06=ffff00000e4f1b00 X07=00000000f2f2f2f2 X08=00000000f3f3f300 X09=00000000f2000000 X10=00000000f204f204 X11=00000000f3f3f3f3 X12=00000000f1f1f1f1 X13=0000000000000000 X14=1ffff000033f8e52 X15=0000000000000000 X16=0000000000000000 X17=0000000000000000 X18=ffff00006a93ac00 X19=ffff80000e434a70 X20=0000000000000000 X21=0000000000000003 X22=0000000000000028 X23=ffff80000e434b00 X24=dfff800000000000 X25=ffff80000e434a40 X26=0000000000000004 X27=ffff80000e434a70 X28=ffff0000138ea570 X29=ffff800019fc7300 X30=ffff8000083a3458 SP=ffff800019fc7300 PSTATE=800000c5 N--- EL1h FPCR=00000000 FPSR=00000010 Q00=0000000000000000:3f844b203ddb74be Q01=0000000000000000:3f847ae147ae147b Q02=0000000000000000:4189bf2bd2cceb16 Q03=0000000000000000:4120a12000000000 Q04=0000000000000000:3f841bc9ae215bd0 Q05=0000000000000000:3fe046c82ddfa483 Q06=0000000000000000:3fd3333333333333 Q07=0000000000000000:3feaaaaaaaaaaaab Q08=0000000000000000:3fda0eaab14fabfe Q09=0000000000000000:3fe1e8de65326c4a Q10=0000000000000000:3fe0000000000000 Q11=0000000000000000:0000000000000000 Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000 Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000 Q16=0000000000000000:0000000000000000 Q17=0000000000000000:0000000000000000 Q18=0000000000000000:0000000000000000 Q19=0000000000000000:0000000000000000 Q20=0000000000000000:0000000000000000 Q21=0000000000000000:0000000000000000 Q22=0000000000000000:0000000000000000 Q23=0000000000000000:0000000000000000 Q24=0000000000000000:0000000000000000 Q25=0000000000000000:0000000000000000 Q26=0000000000000000:0000000000000000 Q27=0000000000000000:0000000000000000 Q28=0000000000000000:0000000000000000 Q29=0000000000000000:0000000000000000 Q30=0000000000000000:00000000d728606c Q31=0000000000000000:0000000000000000 info registers vcpu 1 PC=ffff800008013168 X00=0000ffffc5ed8210 X01=0000ffff95c8a330 X02=0000ffff95ca1168 X03=0000ffff95cba200 X04=0000ffff95c88000 X05=0000ffff95cb8000 X06=0000000000000003 X07=0000000000000000 X08=0000000000000000 X09=0000000000000000 X10=0000000000000000 X11=0000ffff95cb8e58 X12=0000000000000000 X13=0000000000000000 X14=0000000000000000 X15=0000000000000000 X16=0000000000000000 X17=0000000000000000 X18=0000000000000000 X19=0000ffff95cb9060 X20=0000ffff95cb9a78 X21=0000ffffc5ed8210 X22=0000ffff95c88f88 X23=0000000000000000 X24=0000000000000000 X25=0000000000000000 X26=0000000000000000 X27=0000ffff95c88f88 X28=0000ffff95c88000 X29=0000ffffc5ed7c80 X30=0000ffff95c8998c SP=ffff800011638000 PSTATE=400003c5 -Z-- EL1h FPCR=00000000 FPSR=00000000 Q00=0000000000000000:0000000000000000 Q01=0000000000000000:0000000000000000 Q02=0000000000000000:0000000000000000 Q03=0000000000000000:0000000000000000 Q04=0000000000000000:0000000000000000 Q05=0000000000000000:0000000000000000 Q06=0000000000000000:0000000000000000 Q07=0000000000000000:0000000000000000 Q08=0000000000000000:0000000000000000 Q09=0000000000000000:0000000000000000 Q10=0000000000000000:0000000000000000 Q11=0000000000000000:0000000000000000 Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000 Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000 Q16=0000000000000000:0000000000000000 Q17=0000000000000000:0000000000000000 Q18=0000000000000000:0000000000000000 Q19=0000000000000000:0000000000000000 Q20=0000000000000000:0000000000000000 Q21=0000000000000000:0000000000000000 Q22=0000000000000000:0000000000000000 Q23=0000000000000000:0000000000000000 Q24=0000000000000000:0000000000000000 Q25=0000000000000000:0000000000000000 Q26=0000000000000000:0000000000000000 Q27=0000000000000000:0000000000000000 Q28=0000000000000000:0000000000000000 Q29=0000000000000000:0000000000000000 Q30=0000000000000000:0000000000000000 Q31=0000000000000000:0000000000000000