syzkaller login: [ 119.941413][ T2903] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 119.948253][ T2903] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 119.962826][ T2903] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:57761' (ECDSA) to the list of known hosts. 1970/01/01 00:02:29 fuzzer started 1970/01/01 00:02:33 connecting to host at localhost:34085 1970/01/01 00:02:33 checking machine... 1970/01/01 00:02:33 checking revisions... 1970/01/01 00:02:36 testing simple program... executing program [ 157.264696][ T3063] cgroup: Unknown subsys name 'net' [ 158.252861][ T3063] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program [ 166.892414][ T3066] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 166.923670][ T3066] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link executing program [ 170.362383][ T3066] device hsr_slave_0 entered promiscuous mode [ 170.428230][ T3066] device hsr_slave_1 entered promiscuous mode executing program [ 172.440636][ T3066] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 172.535691][ T3066] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 172.605897][ T3066] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 172.713274][ T3066] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 174.905749][ T3066] 8021q: adding VLAN 0 to HW filter on device bond0 executing program [ 175.025036][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 175.052325][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 176.642919][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 176.658073][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 176.718326][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 176.734036][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 176.814767][ T896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 176.882710][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 177.061916][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 177.068692][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 177.158763][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 177.183725][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 177.247316][ T3066] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 178.837461][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 178.848836][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 182.296329][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 182.312672][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready executing program [ 184.054159][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 184.077998][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 184.104177][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 184.113441][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 184.165683][ T3066] device veth0_vlan entered promiscuous mode [ 184.269904][ T3066] device veth1_vlan entered promiscuous mode [ 184.544560][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 184.563908][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 184.603824][ T3066] device veth0_macvtap entered promiscuous mode [ 184.647180][ T3066] device veth1_macvtap entered promiscuous mode [ 184.896106][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 184.905105][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 184.920111][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 184.927159][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 185.017408][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 185.054321][ T3383] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 185.123229][ T3066] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 185.125328][ T3066] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 185.125781][ T3066] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 185.126238][ T3066] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program 1970/01/01 00:03:07 building call list... [ 187.968180][ T1902] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 188.214407][ T1902] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 188.455253][ T1902] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 188.667400][ T1902] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 192.141093][ T1902] device hsr_slave_0 left promiscuous mode [ 192.212566][ T1902] device hsr_slave_1 left promiscuous mode [ 192.518160][ T1902] device veth1_macvtap left promiscuous mode [ 192.531487][ T1902] device veth0_macvtap left promiscuous mode [ 192.534310][ T1902] device veth1_vlan left promiscuous mode [ 192.536780][ T1902] device veth0_vlan left promiscuous mode executing program executing program [ 196.365372][ T1902] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 196.524451][ T1902] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 197.235910][ T1902] bond0 (unregistering): Released all slaves executing program executing program executing program executing program [ 208.982066][ T1902] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 208.983614][ T1902] leaked reference. [ 208.984903][ T1902] ipv6_add_dev+0x300/0xeec [ 208.985730][ T1902] addrconf_notify+0x3ac/0x1080 [ 208.986113][ T1902] notifier_call_chain+0xc0/0x180 [ 208.986689][ T1902] raw_notifier_call_chain+0x18/0x24 [ 208.987111][ T1902] call_netdevice_notifiers_info+0x80/0xe0 [ 208.987539][ T1902] register_netdevice+0xa7c/0x1094 [ 208.987879][ T1902] register_netdev+0x24/0x4c [ 208.988199][ T1902] loopback_net_init+0x6c/0x124 [ 208.988556][ T1902] ops_init+0x8c/0x46c [ 208.988867][ T1902] setup_net+0x638/0xbec [ 208.990491][ T1902] copy_net_ns+0x1fc/0x560 [ 208.991853][ T1902] create_new_namespaces+0x300/0x840 [ 208.993427][ T1902] unshare_nsproxy_namespaces+0x7c/0x174 [ 208.995395][ T1902] ksys_unshare+0x284/0x580 [ 208.996920][ T1902] __arm64_sys_unshare+0x30/0x50 [ 208.997431][ T1902] invoke_syscall+0x6c/0x260 executing program [ 212.583363][ T3057] can: request_module (can-proto-0) failed. [ 212.990240][ T3057] can: request_module (can-proto-0) failed. [ 213.342595][ T3057] can: request_module (can-proto-0) failed. executing program executing program [ 219.195098][ T1902] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 219.196023][ T1902] leaked reference. [ 219.196395][ T1902] ipv6_add_dev+0x300/0xeec [ 219.196879][ T1902] addrconf_notify+0x3ac/0x1080 [ 219.197308][ T1902] notifier_call_chain+0xc0/0x180 [ 219.197735][ T1902] raw_notifier_call_chain+0x18/0x24 [ 219.198169][ T1902] call_netdevice_notifiers_info+0x80/0xe0 [ 219.199969][ T1902] register_netdevice+0xa7c/0x1094 [ 219.201345][ T1902] register_netdev+0x24/0x4c [ 219.202535][ T1902] loopback_net_init+0x6c/0x124 [ 219.203805][ T1902] ops_init+0x8c/0x46c [ 219.204854][ T1902] setup_net+0x638/0xbec [ 219.205895][ T1902] copy_net_ns+0x1fc/0x560 [ 219.207006][ T1902] create_new_namespaces+0x300/0x840 [ 219.208264][ T1902] unshare_nsproxy_namespaces+0x7c/0x174 [ 219.209613][ T1902] ksys_unshare+0x284/0x580 [ 219.210794][ T1902] __arm64_sys_unshare+0x30/0x50 [ 219.212603][ T1902] invoke_syscall+0x6c/0x260 executing program executing program executing program executing program [ 229.311504][ T1902] unregister_netdevice: waiting for lo to become free. Usage count = 2 [ 229.312302][ T1902] leaked reference. [ 229.312666][ T1902] ipv6_add_dev+0x300/0xeec [ 229.313105][ T1902] addrconf_notify+0x3ac/0x1080 [ 229.313485][ T1902] notifier_call_chain+0xc0/0x180 [ 229.313895][ T1902] raw_notifier_call_chain+0x18/0x24 [ 229.314295][ T1902] call_netdevice_notifiers_info+0x80/0xe0 [ 229.314703][ T1902] register_netdevice+0xa7c/0x1094 [ 229.315097][ T1902] register_netdev+0x24/0x4c [ 229.315479][ T1902] loopback_net_init+0x6c/0x124 [ 229.315886][ T1902] ops_init+0x8c/0x46c [ 229.316301][ T1902] setup_net+0x638/0xbec [ 229.316727][ T1902] copy_net_ns+0x1fc/0x560 [ 229.317104][ T1902] create_new_namespaces+0x300/0x840 [ 229.317509][ T1902] unshare_nsproxy_namespaces+0x7c/0x174 [ 229.318011][ T1902] ksys_unshare+0x284/0x580 [ 229.319534][ T1902] __arm64_sys_unshare+0x30/0x50 [ 229.321006][ T1902] invoke_syscall+0x6c/0x260 [ 230.373217][ T2903] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 230.396674][ T2903] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 230.405483][ T2903] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 230.418007][ T2903] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. executing program VM DIAGNOSIS: 02:20:07 Registers: info registers vcpu 0 PC=ffff80000cb3aff0 X00=ffff80000ce803c0 X01=ffff80000cbe2e20 X02=ffff80000ce80260 X03=1fffe0000d527533 X04=ffff800009ae2c40 X05=ffff8000115274b0 X06=1ffff000022a4e92 X07=1fffe00001de6b72 X08=ffff00000ef35b90 X09=ffff80000f85c9c0 X10=ffff600001c3547e X11=1fffe00001c3547e X12=ffff600001c3547f X13=0000000000000000 X14=1ffff000022a4e3a X15=ffff00006a93abc8 X16=0000000000000000 X17=0000000000000000 X18=ffff00006a93ac00 X19=ffff80000e1c7998 X20=ffff80000cb5b070 X21=0000000000000001 X22=ffff800009ae2320 X23=ffff800010e83a40 X24=ffff800009ae2c40 X25=ffff8000115274b0 X26=ffff800010e83a40 X27=0000000000000003 X28=ffff00000e1ab000 X29=ffff8000115272d0 X30=ffff80000cb3b150 SP=ffff8000115272d0 PSTATE=400000c5 -Z-- EL1h FPCR=00000000 FPSR=00000010 Q00=0000000000000000:3fdb08d0a36f24ae Q01=0000000000000000:412ecc4000000000 Q02=0000000000000000:4002f055d9a30e22 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=0000000000000010:000000222e666870 Q31=0000000000000000:0000000000000000 info registers vcpu 1 PC=ffff800009186608 X00=0000000000000000 X01=00000000000000c0 X02=0000000000000003 X03=1fffe00001b66001 X04=00000000f204f1f1 X05=ffff80000e8f0780 X06=0000000000000001 X07=00008ffffe2e1f10 X08=ffff80000e8f0780 X09=dfff800000000000 X10=ffff700001d1e0f0 X11=dfff800000000000 X12=000000000000f1f1 X13=1fffe00001b66161 X14=1ffff0000317adf6 X15=0000000000000000 X16=0000000000000000 X17=0000000000000000 X18=ffff00006a959c00 X19=1ffff0000317ae22 X20=ffff800010c00d60 X21=ffff00000db30ae8 X22=ffff00000db30000 X23=00000000000000c0 X24=0000000000000001 X25=0000000000000000 X26=ffff000009f2c080 X27=1ffff0000317aea2 X28=0000000000000037 X29=ffff800018bd7190 X30=ffff8000097d2c9c SP=ffff800018bd7190 PSTATE=100000c5 ---V EL1h FPCR=00000000 FPSR=00000000 Q00=2e2e2e2e2e2e2e2e:2e2e2e2e2e2e2e2e Q01=7475612f34687465:2f666e6f632f3676 Q02=001a001000000000:000000666e6f636f Q03=0000000000000000:0000000000000000 Q04=8000080080200802:8020080000000000 Q05=0000000000000000:0000000000000000 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=8008a00aa0080000:88aaa80000000000 Q18=8000080080200802:8020080000000000 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