syzkaller login: [ 46.595119][ T2078] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 49.622959][ T2078] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 49.626034][ T2078] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:9209' (ECDSA) to the list of known hosts. 1970/01/01 00:00:56 fuzzer started 1970/01/01 00:00:58 connecting to host at localhost:35265 1970/01/01 00:00:58 checking machine... 1970/01/01 00:00:58 checking revisions... 1970/01/01 00:01:00 testing simple program... [ 60.655689][ T2227] cgroup: Unknown subsys name 'net' [ 60.875678][ T2227] cgroup: Unknown subsys name 'hugetlb' [ 60.878180][ T2227] cgroup: Unknown subsys name 'rlimit' executing program [ 62.156407][ T2229] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.180266][ T2229] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.593215][ T2229] device hsr_slave_0 entered promiscuous mode [ 62.597833][ T2229] device hsr_slave_1 entered promiscuous mode [ 62.755965][ T2229] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.765822][ T2229] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.775624][ T2229] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.780682][ T2229] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.217587][ T2229] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.229830][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.230792][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.470620][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.471941][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.479426][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.480518][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.488571][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.500004][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.523143][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.524830][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.533359][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.535302][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.547462][ T2229] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.572652][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.573209][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.506951][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 64.508034][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.792357][ T15] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 64.793730][ T15] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.798564][ T15] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.799585][ T15] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.808737][ T2229] device veth0_vlan entered promiscuous mode [ 64.820821][ T2229] device veth1_vlan entered promiscuous mode [ 64.856994][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 64.858181][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.866832][ T2229] device veth0_macvtap entered promiscuous mode [ 64.874903][ T2229] device veth1_macvtap entered promiscuous mode [ 64.896214][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.897499][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 64.899941][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.900921][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.908744][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.909971][ T92] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.921017][ T2229] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.921600][ T2229] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.921827][ T2229] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.922039][ T2229] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 65.179760][ T49] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.103255][ T49] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:07 BUG: program execution failed: executor 0: failed to write control pipe: write |1: broken pipe SYZFAIL: control pipe write failed (errno 9: Bad file descriptor) loop exited with status 67 [ 68.491564][ T49] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.533220][ T49] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.415510][ T49] device hsr_slave_0 left promiscuous mode [ 69.417309][ T49] device hsr_slave_1 left promiscuous mode [ 69.437149][ T49] device veth1_macvtap left promiscuous mode [ 69.437683][ T49] device veth0_macvtap left promiscuous mode [ 69.438198][ T49] device veth1_vlan left promiscuous mode [ 69.438556][ T49] device veth0_vlan left promiscuous mode [ 69.680608][ T49] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.691605][ T49] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.741848][ T49] bond0 (unregistering): Released all slaves [ 81.390504][ T2078] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 82.679349][ T2078] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 82.680696][ T2078] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 83.889575][ T2078] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. VM DIAGNOSIS: 02:24:46 Registers: info registers vcpu 0 R00=84ea4000 R01=00000000 R02=df8d5e4c R03=0000066f R04=82488940 R05=83a23c00 R06=839eae00 R07=00000000 R08=00000000 R09=84ea4000 R10=400004d8 R11=df8d5e84 R12=df8d5e10 R13=df8d5e50 R14=80276008 R15=8032ffe8 PSR=60000193 -ZC- A S svc32 s00=726f7020 s01=30362074 d00=30362074726f7020 s02=312e3736 s03=35323330 d01=35323330312e3736 s04=205b5d35 s05=34542020 d02=34542020205b5d35 s06=6e205d39 s07=65647465 d03=656474656e205d39 s08=6d697376 s09=74656e20 d04=74656e206d697376 s10=73766564 s11=20306d69 d05=20306d6973766564 s12=6474656e s13=69737665 d06=697376656474656e s14=2820326d s15=65726e75 d07=65726e752820326d s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000 info registers vcpu 1 R00=816fcba8 R01=00000000 R02=eb989f2c R03=839e8b80 R04=00000000 R05=839e8b80 R06=82ab8e40 R07=839e93d0 R08=00000001 R09=839e8b80 R10=000000f8 R11=eb989f04 R12=eb989ee0 R13=eb989f08 R14=8020c2c8 R15=8030d944 PSR=80000093 N--- A S svc32 s00=68e08181 s01=9a8ecc7c d00=9a8ecc7c68e08181 s02=69616620 s03=0a64656c d01=0a64656c69616620 s04=72652820 s05=206f6e72 d02=206f6e7272652820 s06=42203a39 s07=66206461 d03=6620646142203a39 s08=20656c69 s09=63736564 d04=6373656420656c69 s10=74706972 s11=0a29726f d05=0a29726f74706972 s12=706f6f6c s13=69786520 d06=69786520706f6f6c s14=20646574 s15=68746977 d07=6874697720646574 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=1f7221c6 s33=a69e5213 d16=a69e52131f7221c6 s34=0eb2b251 s35=62a02a06 d17=62a02a060eb2b251 s36=7a0f8a5a s37=8087854c d18=8087854c7a0f8a5a s38=bc0f7f6c s39=de119973 d19=de119973bc0f7f6c s40=287a6d7d s41=9c037008 d20=9c037008287a6d7d s42=a5297b24 s43=c5564e5b d21=c5564e5ba5297b24 s44=94c4b6ea s45=4b9702bd d22=4b9702bd94c4b6ea s46=4ff2b5b8 s47=3116530e d23=3116530e4ff2b5b8 s48=00000001 s49=00000000 d24=0000000000000001 s50=00000000 s51=00000000 d25=0000000000000000 s52=9cba2399 s53=66be7358 d26=66be73589cba2399 s54=b96e9788 s55=999bcc70 d27=999bcc70b96e9788 s56=7ebd2219 s57=59d007db d28=59d007db7ebd2219 s58=fa30e006 s59=4b7fd5df d29=4b7fd5dffa30e006 s60=42d11ca0 s61=2c210cb5 d30=2c210cb542d11ca0 s62=0000007d s63=00000068 d31=000000680000007d FPSCR: 00000000