syzkaller login: [ 94.325484][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 94.348283][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 94.361884][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:50017' (ECDSA) to the list of known hosts. 1970/01/01 00:02:08 fuzzer started 1970/01/01 00:02:12 connecting to host at localhost:39653 1970/01/01 00:02:12 checking machine... 1970/01/01 00:02:12 checking revisions... 1970/01/01 00:02:14 testing simple program... [ 135.507353][ T3057] cgroup: Unknown subsys name 'net' executing program [ 136.051887][ T3057] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 142.570842][ T3060] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 142.616309][ T3060] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link executing program [ 145.460312][ T3060] device hsr_slave_0 entered promiscuous mode [ 145.507817][ T3060] device hsr_slave_1 entered promiscuous mode [ 147.458613][ T3060] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 147.549843][ T3060] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 147.626247][ T3060] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 147.696255][ T3060] netdevsim netdevsim0 netdevsim3: renamed from eth3 executing program [ 149.779607][ T3060] 8021q: adding VLAN 0 to HW filter on device bond0 [ 149.897640][ T1715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 149.917959][ T1715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready executing program [ 151.046093][ T1715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 151.052124][ T1715] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 151.098165][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 151.115013][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 151.177767][ T1715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 151.240704][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 151.431628][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 151.441315][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 151.516036][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 151.531761][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 151.594724][ T3060] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 152.737722][ T2828] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 152.740439][ T2828] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 155.320233][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 155.331038][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 156.521357][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 156.544883][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 156.557328][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 156.568819][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 156.617458][ T3060] device veth0_vlan entered promiscuous mode [ 156.710960][ T3060] device veth1_vlan entered promiscuous mode [ 157.000331][ T2828] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready executing program [ 157.031232][ T2828] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 157.091627][ T3060] device veth0_macvtap entered promiscuous mode [ 157.140179][ T3060] device veth1_macvtap entered promiscuous mode [ 157.298323][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 157.308477][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 157.326836][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 157.336652][ T3058] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 157.404117][ T1715] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 157.412838][ T1715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 157.486478][ T3060] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.489287][ T3060] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.491792][ T3060] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.501051][ T3060] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:02:38 building call list... [ 159.418653][ T38] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.584035][ T38] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.731324][ T38] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.902958][ T38] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 162.649746][ T38] device hsr_slave_0 left promiscuous mode [ 162.697257][ T38] device hsr_slave_1 left promiscuous mode [ 162.948335][ T38] device veth1_macvtap left promiscuous mode [ 162.951290][ T38] device veth0_macvtap left promiscuous mode [ 162.966622][ T38] device veth1_vlan left promiscuous mode [ 162.968814][ T38] device veth0_vlan left promiscuous mode executing program [ 165.327234][ T38] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 165.484674][ T38] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface executing program [ 166.212730][ T38] bond0 (unregistering): Released all slaves executing program executing program executing program [ 177.645048][ T38] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 177.648305][ T38] leaked reference. [ 177.649442][ T38] ipv6_add_dev+0x13c/0x580 [ 177.651717][ T38] addrconf_notify+0x1a0/0x710 [ 177.653168][ T38] raw_notifier_call_chain+0x54/0x74 [ 177.654781][ T38] call_netdevice_notifiers_info+0x54/0xa0 [ 177.656222][ T38] register_netdevice+0x3f0/0x564 [ 177.657390][ T38] register_netdev+0x24/0x4c [ 177.658534][ T38] loopback_net_init+0x4c/0xb0 [ 177.659621][ T38] ops_init+0x40/0x14c [ 177.660652][ T38] setup_net+0x190/0x3c0 [ 177.661724][ T38] copy_net_ns+0xec/0x360 [ 177.662849][ T38] create_new_namespaces+0x114/0x350 [ 177.664385][ T38] unshare_nsproxy_namespaces+0x64/0xb0 [ 177.665813][ T38] ksys_unshare+0x18c/0x320 [ 177.666898][ T38] __arm64_sys_unshare+0x14/0x24 [ 177.668014][ T38] invoke_syscall+0x48/0x114 [ 177.669093][ T38] el0_svc_common.constprop.0+0x44/0xec executing program executing program executing program executing program [ 187.275119][ T3050] can: request_module (can-proto-0) failed. [ 187.546905][ T3050] can: request_module (can-proto-0) failed. [ 187.755028][ T3050] can: request_module (can-proto-0) failed. [ 187.766221][ T38] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 187.768618][ T38] leaked reference. [ 187.769449][ T38] ipv6_add_dev+0x13c/0x580 [ 187.771209][ T38] addrconf_notify+0x1a0/0x710 [ 187.773103][ T38] raw_notifier_call_chain+0x54/0x74 [ 187.775592][ T38] call_netdevice_notifiers_info+0x54/0xa0 [ 187.778200][ T38] register_netdevice+0x3f0/0x564 [ 187.779483][ T38] register_netdev+0x24/0x4c [ 187.780622][ T38] loopback_net_init+0x4c/0xb0 [ 187.782354][ T38] ops_init+0x40/0x14c [ 187.784624][ T38] setup_net+0x190/0x3c0 [ 187.786026][ T38] copy_net_ns+0xec/0x360 [ 187.787262][ T38] create_new_namespaces+0x114/0x350 [ 187.788479][ T38] unshare_nsproxy_namespaces+0x64/0xb0 [ 187.790589][ T38] ksys_unshare+0x18c/0x320 [ 187.792225][ T38] __arm64_sys_unshare+0x14/0x24 [ 187.794259][ T38] invoke_syscall+0x48/0x114 [ 187.796049][ T38] el0_svc_common.constprop.0+0x44/0xec executing program executing program [ 194.560468][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 194.569935][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 194.581643][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 194.591403][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. executing program [ 198.094479][ T38] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 198.096072][ T38] leaked reference. [ 198.096934][ T38] ipv6_add_dev+0x13c/0x580 [ 198.098024][ T38] addrconf_notify+0x1a0/0x710 [ 198.099132][ T38] raw_notifier_call_chain+0x54/0x74 [ 198.100379][ T38] call_netdevice_notifiers_info+0x54/0xa0 [ 198.101648][ T38] register_netdevice+0x3f0/0x564 [ 198.102818][ T38] register_netdev+0x24/0x4c [ 198.103811][ T38] loopback_net_init+0x4c/0xb0 [ 198.104895][ T38] ops_init+0x40/0x14c [ 198.105933][ T38] setup_net+0x190/0x3c0 [ 198.107017][ T38] copy_net_ns+0xec/0x360 [ 198.108074][ T38] create_new_namespaces+0x114/0x350 [ 198.109212][ T38] unshare_nsproxy_namespaces+0x64/0xb0 [ 198.110369][ T38] ksys_unshare+0x18c/0x320 [ 198.111413][ T38] __arm64_sys_unshare+0x14/0x24 [ 198.112599][ T38] invoke_syscall+0x48/0x114 [ 198.113646][ T38] el0_svc_common.constprop.0+0x44/0xec executing program executing program VM DIAGNOSIS: 22:33:23 Registers: info registers vcpu 0 PC=ffff800009863420 X00=000000000000000a X01=ffff800009670c5c X02=ffff800009670c5c X03=ffff0a00ffffff05 X04=ffff800009fcb2e5 X05=f1ff000002e60000 X06=0000000000000053 X07=0000000000000000 X08=ffff80000a9bbb30 X09=ffff80000a9bbb30 X10=ffff80000a49eb08 X11=fffffffffffcc0a8 X12=00000000000002fc X13=00000000000008f4 X14=ffff80000a3eeb08 X15=0000000000000020 X16=617355202e656572 X17=746e756f63206567 X18=00000000fffffffd X19=ffff80000a9bb991 X20=ffff0a00ffffff05 X21=ffff80000a9bb998 X22=ffff0a00ffffff05 X23=00000000ffffffe0 X24=0000000000000008 X25=0000000000000020 X26=ffff800009fcb2e5 X27=ffff800009fcb2e5 X28=ffff80000a9bb991 X29=ffff80000a9bb4e0 X30=869c800009866708 SP=ffff80000a9bb4e0 PSTATE=804000c9 N--- EL2h BTYPE=0 FPCR=00000000 FPSR=00000000 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=0000000000000000:0000000000000000 Z01=652f646370636864:2f62642f7261762f Z02=0000002400000065:7361656c2e346874 Z03=0000000000000000:0000000000000000 Z04=8020080080200800:0000000000000000 Z05=0000000000000000:0000000000000000 Z06=0000000000000000:0000000040000000 Z07=8020080280200802:8020080280200802 Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=4010040140100401:4010040140100401 Z17=a008a00800004000:a8a8004000000000 Z18=8020080080200800:0000000040000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000000 info registers vcpu 1 PC=fffffbfffdbfac00 X00=000000400005def8 X01=0000000000000000 X02=0000000000000000 X03=0000000000000000 X04=00000000000003e8 X05=0000000000004e20 X06=00000000000000b1 X07=000000000000891e X08=0000000000000065 X09=000000000000891e X10=0000000000000017 X11=0003473bc0000000 X12=00000002979056b4 X13=000000007fffffff X14=0000000000000000 X15=0000000000000000 X16=000000400005df18 X17=0000000001b1d160 X18=0000000000000000 X19=0000ffff82929000 X20=000000400005def0 X21=000000400004e000 X22=0000004000050000 X23=0000000000000000 X24=0000000000000000 X25=0000000000000000 X26=000000400005dd90 X27=0000000000002710 X28=00000040000004e0 X29=000000400005dee8 X30=0000000000055de8 SP=ffff80000aad4000 PSTATE=024003c9 ---- EL2h BTYPE=0 FPCR=00000000 FPSR=00000010 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=0000000000000000:0000000000000004 Z01=0000000000000000:4129cff000000000 Z02=61e87ab300e80a96:9ddd0f2f4a517223 Z03=0000000040000000:0000000000000000 Z04=4010040140100401:4000000000000000 Z05=4010040140100401:4010040140100401 Z06=5555400000400000:5555400000400000 Z07=0000000000000000:0000000000000000 Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000 Z17=0000000000000000:0000000000000000 Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000010:0000001d9775b5b0 Z31=0000000000000000:0000000000000000