syzkaller login: [ 46.793492][ T2079] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 46.795634][ T2079] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 46.801101][ T2079] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:19580' (ECDSA) to the list of known hosts. 1970/01/01 00:00:59 fuzzer started 1970/01/01 00:01:02 connecting to host at localhost:43973 1970/01/01 00:01:02 checking machine... 1970/01/01 00:01:02 checking revisions... 1970/01/01 00:01:04 testing simple program... [ 64.261090][ T2228] cgroup: Unknown subsys name 'net' [ 64.403067][ T2228] cgroup: Unknown subsys name 'hugetlb' [ 64.406816][ T2228] cgroup: Unknown subsys name 'rlimit' executing program [ 65.604725][ T2230] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.612217][ T2230] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.052455][ T2230] device hsr_slave_0 entered promiscuous mode [ 66.055069][ T2230] device hsr_slave_1 entered promiscuous mode [ 66.266513][ T2230] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.282339][ T2230] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.289583][ T2230] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.295435][ T2230] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.840584][ T2230] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.857591][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.859534][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.207094][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.208226][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.213883][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.214862][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.230591][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.239765][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.255522][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.260607][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.276581][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.279818][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.285425][ T2230] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.314734][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.315277][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.258838][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.261233][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready executing program [ 68.596496][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.597506][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.598397][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.599023][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.605485][ T2230] device veth0_vlan entered promiscuous mode [ 68.621538][ T2230] device veth1_vlan entered promiscuous mode [ 68.664217][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.665544][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.667570][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.668531][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.675185][ T2230] device veth0_macvtap entered promiscuous mode [ 68.684595][ T2230] device veth1_macvtap entered promiscuous mode [ 68.715159][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.719232][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.722130][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.725162][ T87] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.738460][ T15] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.739895][ T15] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.745275][ T2230] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.746480][ T2230] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.746993][ T2230] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.747321][ T2230] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.013065][ T41] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:10 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 [ 70.716279][ T41] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.832952][ T41] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.874746][ T41] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.676301][ T41] device hsr_slave_0 left promiscuous mode [ 72.681982][ T41] device hsr_slave_1 left promiscuous mode [ 72.704979][ T41] device veth1_macvtap left promiscuous mode [ 72.707955][ T41] device veth0_macvtap left promiscuous mode [ 72.708551][ T41] device veth1_vlan left promiscuous mode [ 72.708982][ T41] device veth0_vlan left promiscuous mode [ 72.938997][ T41] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.949926][ T41] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 73.005271][ T41] bond0 (unregistering): Released all slaves [ 83.915085][ T2079] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 85.452556][ T2079] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 85.453983][ T2079] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 86.278678][ T2079] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. VM DIAGNOSIS: 00:38:11 Registers: info registers vcpu 0 R00=00000001 R01=81d72cd0 R02=00000001 R03=82bb2e00 R04=00000000 R05=dddd4a80 R06=00000000 R07=00000000 R08=82ab3e00 R09=82bb2e00 R10=00000402 R11=df965dc4 R12=df965d70 R13=df965d80 R14=816fc980 R15=80276588 PSR=20000013 --C- A S svc32 s00=04000000 s01=00000000 d00=0000000004000000 s02=20000000 s03=fffa9992 d01=fffa999220000000 s04=fc000000 s05=ffffffff d02=fffffffffc000000 s06=fc000000 s07=ffffffff d03=fffffffffc000000 s08=000ae50f s09=00ed2bb9 d04=00ed2bb9000ae50f s10=00000000 s11=00000000 d05=0000000000000000 s12=ff9c65d0 s13=00e8e316 d06=00e8e316ff9c65d0 s14=ffffffff s15=00000000 d07=00000000ffffffff s16=fe000000 s17=083e1cc7 d08=083e1cc7fe000000 s18=24000000 s19=000041b2 d09=000041b224000000 s20=ff327ff9 s21=00e8e312 d10=00e8e312ff327ff9 s22=ffffffff s23=00000000 d11=00000000ffffffff s24=060ae50f s25=00000000 d12=00000000060ae50f s26=20000000 s27=fffa9992 d13=fffa999220000000 s28=02000000 s29=00000000 d14=0000000002000000 s30=02000000 s31=00000000 d15=0000000002000000 s32=01c2b5b5 s33=00052674 d16=0005267401c2b5b5 s34=00000000 s35=00000000 d17=0000000000000000 s36=01bb1381 s37=ff8b1e4e d18=ff8b1e4e01bb1381 s38=00000000 s39=ffffffff d19=ffffffff00000000 s40=01000000 s41=00000000 d20=0000000001000000 s42=00628b36 s43=00000000 d21=0000000000628b36 s44=00000001 s45=00000000 d22=0000000000000001 s46=0020d912 s47=00000000 d23=000000000020d912 s48=fe382349 s49=083e1cc7 d24=083e1cc7fe382349 s50=02701c56 s51=00000000 d25=0000000002701c56 s52=01741e2a s53=ff73b146 d26=ff73b14601741e2a s54=ff3fd9ed s55=0082c3bc d27=0082c3bcff3fd9ed s56=00f1431e s57=ff2bde26 d28=ff2bde2600f1431e s58=ff95ef13 s59=ff3fd9ed d29=ff3fd9edff95ef13 s60=1e4dabfd s61=fffa9992 d30=fffa99921e4dabfd s62=959ac8b9 s63=00488f10 d31=00488f10959ac8b9 FPSCR: 00000000 info registers vcpu 1 R00=823a0780 R01=81f1f994 R02=73117280 R03=81092d68 R04=82486e00 R05=000036c6 R06=000036c6 R07=00000000 R08=dddde1c8 R09=dddde1f0 R10=dddde218 R11=df805e64 R12=df805e68 R13=df805e58 R14=81092d9c R15=81092d78 PSR=60030193 -ZC- A S svc32 s00=13661575 s01=c128980d d00=c128980d13661575 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=896add65 s33=c541c06b d16=c541c06b896add65 s34=7e42147b s35=0c206a3e d17=0c206a3e7e42147b s36=167b261a s37=9182163e d18=9182163e167b261a s38=3a142f80 s39=c1c545db d19=c1c545db3a142f80 s40=3f806c00 s41=ad5a9e88 d20=ad5a9e883f806c00 s42=8a3a06d1 s43=b4908722 d21=b49087228a3a06d1 s44=77baf687 s45=de12afdd d22=de12afdd77baf687 s46=7a849897 s47=4cf6df29 d23=4cf6df297a849897 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