SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) Warning: Permanently added '10.128.1.33' (ED25519) to the list of known hosts. 2026/04/23 18:59:27 parsed 1 programs syzkaller login: [ 76.357245][ T5830] cgroup: Unknown subsys name 'net' [ 76.472917][ T5830] cgroup: Unknown subsys name 'cpuset' [ 76.481541][ T5830] cgroup: Unknown subsys name 'rlimit' [ 76.487185][ T5830] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 77.858640][ T5830] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 80.894156][ T5855] chnl_net:caif_netlink_parms(): no params data found [ 80.981080][ T5855] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.988682][ T5855] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.996101][ T5855] bridge_slave_0: entered allmulticast mode [ 81.003184][ T5855] bridge_slave_0: entered promiscuous mode [ 81.013535][ T5855] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.021025][ T5855] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.028194][ T5855] bridge_slave_1: entered allmulticast mode [ 81.035883][ T5855] bridge_slave_1: entered promiscuous mode [ 81.066000][ T5855] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.077192][ T5855] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.105185][ T5855] team0: Port device team_slave_0 added [ 81.114119][ T5855] team0: Port device team_slave_1 added [ 81.137482][ T5855] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.144529][ T5855] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 81.170657][ T5855] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.187323][ T5855] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.194759][ T5855] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 81.221052][ T5855] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.262519][ T5855] hsr_slave_0: entered promiscuous mode [ 81.268808][ T5855] hsr_slave_1: entered promiscuous mode [ 81.386384][ T5855] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.397676][ T5855] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 81.406155][ T5855] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.414856][ T5855] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 81.422676][ T5855] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.433727][ T5855] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 81.441386][ T5855] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.451078][ T5855] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 81.479701][ T5855] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.486939][ T5855] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.495224][ T5855] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.502392][ T5855] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.551872][ T5855] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.569107][ T1145] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.579079][ T1145] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.593942][ T5855] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.606061][ T145] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.613242][ T145] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.627367][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.634529][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.773977][ T5855] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.817148][ T5855] veth0_vlan: entered promiscuous mode [ 81.828241][ T5855] veth1_vlan: entered promiscuous mode [ 81.855923][ T5855] veth0_macvtap: entered promiscuous mode [ 81.865043][ T5855] veth1_macvtap: entered promiscuous mode [ 81.883093][ T5855] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.896270][ T5855] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.912259][ T1145] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.921512][ T1145] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.933213][ T1145] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.942628][ T1145] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.082210][ T36] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.154403][ T36] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.244748][ T36] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.321720][ T36] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.771848][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 82.782989][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 82.795273][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 82.806442][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 82.814770][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 83.531294][ T145] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.539347][ T145] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.568291][ T1145] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.576308][ T1145] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/04/23 18:59:37 executed programs: 0 [ 84.523598][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 84.533845][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 84.542052][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 84.550702][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 84.558253][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 84.685837][ T5938] chnl_net:caif_netlink_parms(): no params data found [ 84.745911][ T5938] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.753222][ T5938] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.760438][ T5938] bridge_slave_0: entered allmulticast mode [ 84.767342][ T5938] bridge_slave_0: entered promiscuous mode [ 84.774960][ T5938] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.782467][ T5938] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.790358][ T5938] bridge_slave_1: entered allmulticast mode [ 84.798031][ T5938] bridge_slave_1: entered promiscuous mode [ 84.827059][ T5938] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 84.838320][ T5938] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 84.868544][ T5938] team0: Port device team_slave_0 added [ 84.877822][ T5938] team0: Port device team_slave_1 added [ 84.902163][ T5938] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 84.909132][ T5938] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 84.935161][ T5938] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 84.947978][ T5938] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 84.955091][ T5938] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 84.981058][ T5938] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.018003][ T5938] hsr_slave_0: entered promiscuous mode [ 85.024310][ T5938] hsr_slave_1: entered promiscuous mode [ 85.030674][ T5938] debugfs: 'hsr0' already exists in 'hsr' [ 85.036857][ T5938] Cannot create hsr debugfs directory [ 85.273863][ T36] bridge_slave_1: left allmulticast mode [ 85.280414][ T36] bridge_slave_1: left promiscuous mode [ 85.287352][ T36] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.303515][ T36] bridge_slave_0: left allmulticast mode [ 85.309315][ T36] bridge_slave_0: left promiscuous mode [ 85.315469][ T36] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.522362][ T36] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 85.535047][ T36] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 85.546083][ T36] bond0 (unregistering): Released all slaves [ 85.662667][ T36] hsr_slave_0: left promiscuous mode [ 85.668672][ T36] hsr_slave_1: left promiscuous mode [ 85.675329][ T36] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.689804][ T36] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.698182][ T36] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.706109][ T36] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.722897][ T36] veth1_macvtap: left promiscuous mode [ 85.728719][ T36] veth0_macvtap: left promiscuous mode [ 85.734586][ T36] veth1_vlan: left promiscuous mode [ 85.740439][ T36] veth0_vlan: left promiscuous mode [ 85.894482][ T36] team0 (unregistering): Port device team_slave_1 removed [ 85.908383][ T36] team0 (unregistering): Port device team_slave_0 removed [ 86.015426][ T5495] 8021q: adding VLAN 0 to HW filter on device eth1 [ 86.305994][ T5938] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 86.318308][ T5938] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 86.333605][ T5938] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 86.349693][ T5938] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 86.357779][ T5938] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 86.369404][ T5938] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 86.378153][ T5938] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 86.389492][ T5938] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 86.485755][ T5938] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.620425][ T50] Bluetooth: hci0: command tx timeout [ 86.720119][ T29] cfg80211: failed to load regulatory.db [ 86.986638][ T5938] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.002121][ T145] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.009321][ T145] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.068554][ T145] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.075852][ T145] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.568261][ T5938] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 87.650209][ T5938] veth0_vlan: entered promiscuous mode [ 87.661467][ T5938] veth1_vlan: entered promiscuous mode [ 87.697133][ T5938] veth0_macvtap: entered promiscuous mode [ 87.709256][ T5938] veth1_macvtap: entered promiscuous mode [ 87.737131][ T5938] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 87.756446][ T5938] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 87.771925][ T145] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.782186][ T145] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.793261][ T145] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.802495][ T145] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.862892][ T1145] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.871318][ T1145] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.897504][ T145] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 87.907028][ T145] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build800156731=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at d6526ea3e6 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"d6526ea3e6ad9081c902859bbb80f9f840377cb4\" /usr/bin/ld: /tmp/ccIPbfmP.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null