syzkaller login: [ 115.404189][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 115.415269][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 115.426248][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:10980' (ECDSA) to the list of known hosts. 1970/01/01 00:02:55 fuzzer started 1970/01/01 00:02:59 connecting to host at localhost:36989 1970/01/01 00:03:00 checking machine... 1970/01/01 00:03:00 checking revisions... 1970/01/01 00:03:03 testing simple program... executing program [ 183.681403][ T3062] cgroup: Unknown subsys name 'net' [ 184.164199][ T3062] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 191.126342][ T3065] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 191.165600][ T3065] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link executing program [ 194.333077][ T3065] device hsr_slave_0 entered promiscuous mode [ 194.402949][ T3065] device hsr_slave_1 entered promiscuous mode executing program [ 196.491343][ T3065] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 196.592951][ T3065] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 196.674631][ T3065] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 196.802456][ T3065] netdevsim netdevsim0 netdevsim3: renamed from eth3 executing program [ 199.101793][ T3065] 8021q: adding VLAN 0 to HW filter on device bond0 [ 199.206142][ T3376] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 199.233309][ T3376] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 200.614361][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 200.625956][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 200.693575][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 200.706741][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 200.748415][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 200.813145][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 201.028492][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 201.037427][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 201.137378][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 201.146548][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 201.214481][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 202.462592][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 202.464466][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 205.603192][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 205.621552][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 207.253562][ T1720] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 207.265746][ T1720] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 207.284887][ T1720] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 207.295193][ T1720] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 207.321157][ T3065] device veth0_vlan entered promiscuous mode [ 207.406725][ T3065] device veth1_vlan entered promiscuous mode executing program [ 207.697369][ T1720] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 207.706124][ T1720] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 207.764146][ T3065] device veth0_macvtap entered promiscuous mode [ 207.823811][ T3065] device veth1_macvtap entered promiscuous mode [ 207.995312][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 208.012715][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 208.031375][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 208.044665][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 208.153212][ T3376] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 208.167411][ T3376] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 208.246663][ T3065] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 208.248194][ T3065] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 208.253813][ T3065] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 208.254570][ T3065] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:03:29 building call list... executing program [ 210.725233][ T1167] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 210.986205][ T1167] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 211.201901][ T1167] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 211.449998][ T1167] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 214.709897][ T1167] device hsr_slave_0 left promiscuous mode [ 214.784741][ T1167] device hsr_slave_1 left promiscuous mode [ 215.107369][ T1167] device veth1_macvtap left promiscuous mode [ 215.115467][ T1167] device veth0_macvtap left promiscuous mode [ 215.134615][ T1167] device veth1_vlan left promiscuous mode [ 215.137596][ T1167] device veth0_vlan left promiscuous mode executing program [ 218.853783][ T1167] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 219.031611][ T1167] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface executing program [ 219.835860][ T1167] bond0 (unregistering): Released all slaves executing program executing program executing program executing program [ 231.720111][ T1167] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 231.724757][ T1167] leaked reference. [ 231.725918][ T1167] ipv6_add_dev+0x300/0xeec [ 231.726819][ T1167] addrconf_notify+0x3ac/0x1080 [ 231.727459][ T1167] notifier_call_chain+0xc0/0x180 [ 231.727971][ T1167] raw_notifier_call_chain+0x18/0x24 [ 231.728506][ T1167] call_netdevice_notifiers_info+0x80/0xe0 [ 231.729014][ T1167] register_netdevice+0xa7c/0x1094 [ 231.729675][ T1167] register_netdev+0x24/0x4c [ 231.730226][ T1167] loopback_net_init+0x6c/0x124 [ 231.730739][ T1167] ops_init+0x8c/0x46c [ 231.731318][ T1167] setup_net+0x638/0xbec [ 231.731844][ T1167] copy_net_ns+0x1fc/0x560 [ 231.732273][ T1167] create_new_namespaces+0x300/0x840 [ 231.732709][ T1167] unshare_nsproxy_namespaces+0x7c/0x174 [ 231.733109][ T1167] ksys_unshare+0x284/0x580 [ 231.733509][ T1167] __arm64_sys_unshare+0x30/0x50 [ 231.733912][ T1167] invoke_syscall+0x6c/0x260 executing program [ 236.065054][ T3060] can: request_module (can-proto-0) failed. [ 236.377392][ T3060] can: request_module (can-proto-0) failed. [ 236.610751][ T3060] can: request_module (can-proto-0) failed. executing program executing program [ 241.880998][ T1167] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 241.881960][ T1167] leaked reference. [ 241.882342][ T1167] ipv6_add_dev+0x300/0xeec [ 241.882812][ T1167] addrconf_notify+0x3ac/0x1080 [ 241.883234][ T1167] notifier_call_chain+0xc0/0x180 [ 241.883663][ T1167] raw_notifier_call_chain+0x18/0x24 [ 241.884071][ T1167] call_netdevice_notifiers_info+0x80/0xe0 [ 241.884545][ T1167] register_netdevice+0xa7c/0x1094 [ 241.884987][ T1167] register_netdev+0x24/0x4c [ 241.885384][ T1167] loopback_net_init+0x6c/0x124 [ 241.885778][ T1167] ops_init+0x8c/0x46c [ 241.886289][ T1167] setup_net+0x638/0xbec [ 241.886694][ T1167] copy_net_ns+0x1fc/0x560 [ 241.887057][ T1167] create_new_namespaces+0x300/0x840 [ 241.887508][ T1167] unshare_nsproxy_namespaces+0x7c/0x174 [ 241.887985][ T1167] ksys_unshare+0x284/0x580 [ 241.888419][ T1167] __arm64_sys_unshare+0x30/0x50 [ 241.888957][ T1167] invoke_syscall+0x6c/0x260 executing program executing program executing program [ 251.971146][ T1167] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 251.972898][ T1167] leaked reference. [ 251.973309][ T1167] ipv6_add_dev+0x300/0xeec [ 251.973788][ T1167] addrconf_notify+0x3ac/0x1080 [ 251.974193][ T1167] notifier_call_chain+0xc0/0x180 [ 251.974598][ T1167] raw_notifier_call_chain+0x18/0x24 [ 251.975119][ T1167] call_netdevice_notifiers_info+0x80/0xe0 [ 251.975604][ T1167] register_netdevice+0xa7c/0x1094 [ 251.976017][ T1167] register_netdev+0x24/0x4c [ 251.976465][ T1167] loopback_net_init+0x6c/0x124 [ 251.976890][ T1167] ops_init+0x8c/0x46c [ 251.977274][ T1167] setup_net+0x638/0xbec [ 251.977687][ T1167] copy_net_ns+0x1fc/0x560 [ 251.978244][ T1167] create_new_namespaces+0x300/0x840 [ 251.978693][ T1167] unshare_nsproxy_namespaces+0x7c/0x174 [ 251.979192][ T1167] ksys_unshare+0x284/0x580 [ 251.979603][ T1167] __arm64_sys_unshare+0x30/0x50 [ 251.980046][ T1167] invoke_syscall+0x6c/0x260 executing program [ 254.436911][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 254.455366][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 254.467695][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 254.500370][ T2902] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. VM DIAGNOSIS: 23:03:01 Registers: info registers vcpu 0 PC=ffff8000097cc460 X00=0000000000000002 X01=0000000000000002 X02=ffff000009e93172 X03=dfff800000000000 X04=1fffe000013d262e X05=ffff800013977170 X06=0000000000000001 X07=0000000000000004 X08=ffff800013977173 X09=dfff800000000000 X10=ffff70000272ee2e X11=1ffff0000272ee2e X12=ffff70000272ee2f X13=0000000000000000 X14=1ffff0000272ee04 X15=0000000000000000 X16=0000000000000000 X17=0000000000000000 X18=ffff00006a93ac00 X19=ffff000009e93080 X20=ffff800010f3d030 X21=ffff80000e9574c0 X22=1fffe000013d2658 X23=00000000000000c0 X24=0000000000000001 X25=0000000000000000 X26=ffff000009e93080 X27=1ffff0000272eea2 X28=0000000000000031 X29=ffff800013977190 X30=ffff8000097d39ec SP=ffff800013977190 PSTATE=800000c5 N--- EL1h FPCR=00000000 FPSR=00000000 Q00=0000000000000000:0000000000000000 Q01=68642f6463706368:642f62696c2f0068 Q02=5000736b6f6f682d:6e75722d64637063 Q03=2000000000000008:2000000000000008 Q04=0020000000000000:0000000000000000 Q05=0000000004001010:0000000004001010 Q06=0000000000000000:0000000000000000 Q07=8020080280200802:8020080280200802 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=4010040140100401:4010040140100401 Q17=ff000000000000ff:ff000000000000ff Q18=0000000080000000:0000000000000800 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 info registers vcpu 1 PC=ffff8000082aa428 X00=aaaaaaaaaaaaaaab X01=0000000000000000 X02=ffff00000dbaa4d0 X03=0000000000000000 X04=0000000000000001 X05=0000000000000080 X06=0000000000000000 X07=ffff80000cb48d54 X08=0000000000000000 X09=0000000000000000 X10=dfff800000000000 X11=1ffff00001c43f6f X12=0000000000000000 X13=00000000f1f1f1f1 X14=1ffff00002294ef6 X15=000000400005def8 X16=0000000000000000 X17=0000000000000000 X18=0000000000000000 X19=0000000000000000 X20=ffff800010c0cd60 X21=0000000000000000 X22=ffff00000dba9b00 X23=ffff00006a96b398 X24=0000000000000000 X25=0000000000000000 X26=0000000000000023 X27=0000000000000080 X28=ffff80000cb48d54 X29=ffff8000114a7670 X30=ffff8000082b15fc SP=ffff8000114a7670 PSTATE=000000c5 ---- EL1h FPCR=00000000 FPSR=00000010 Q00=0000000000000000:0000000000000000 Q01=0000000000000000:414fffffe0000000 Q02=30c8093aa1096585:05a051c304f7becf Q03=0000000040000000:0000000000000000 Q04=4010040140100401:4000000000000000 Q05=4010040140100401:4010040140100401 Q06=5555400000400000:5555400000400000 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=0000000000000010:0000002879694dd0 Q31=0000000000000000:0000000000000000