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 '10.128.0.64' (ED25519) to the list of known hosts. 2026/05/25 23:52:13 parsed 1 programs [ 78.046308][ T5611] cgroup: Unknown subsys name 'net' [ 78.177940][ T5611] cgroup: Unknown subsys name 'cpuset' [ 78.187164][ T5611] cgroup: Unknown subsys name 'rlimit' [ 78.192835][ T5611] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 79.609227][ T5611] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 82.903989][ T3334] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.935366][ T3334] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.176897][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.203761][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.403591][ T5690] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 84.414505][ T5690] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 84.422926][ T5690] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 84.431018][ T5690] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 84.438811][ T5690] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 85.300186][ T5651] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.318460][ T5651] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.333587][ T5651] bridge_slave_0: entered allmulticast mode [ 85.342373][ T5651] bridge_slave_0: entered promiscuous mode [ 85.355010][ T5651] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.362601][ T5651] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.377685][ T5651] bridge_slave_1: entered allmulticast mode [ 85.391583][ T5651] bridge_slave_1: entered promiscuous mode [ 85.633004][ T5651] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.647252][ T5651] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.712596][ T5651] team0: Port device team_slave_0 added [ 85.731889][ T5651] team0: Port device team_slave_1 added [ 85.757249][ T5651] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.764312][ T5651] 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. [ 85.790720][ T5651] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.805068][ T5651] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.812047][ T5651] 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. [ 85.839120][ T5651] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.881642][ T5651] hsr_slave_0: entered promiscuous mode [ 85.888006][ T5651] hsr_slave_1: entered promiscuous mode [ 86.014798][ T5651] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 86.029542][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 86.039025][ T5651] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 86.049583][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 86.058222][ T5651] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 86.069812][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 86.077727][ T5651] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 86.088175][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 86.152834][ T5651] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.178162][ T5651] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.191991][ T162] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.199649][ T162] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.217517][ T36] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.224644][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.491738][ T5651] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.525459][ T5690] Bluetooth: hci0: command tx timeout [ 86.543232][ T5651] veth0_vlan: entered promiscuous mode [ 86.556993][ T5651] veth1_vlan: entered promiscuous mode [ 86.587012][ T5651] veth0_macvtap: entered promiscuous mode [ 86.596504][ T5651] veth1_macvtap: entered promiscuous mode [ 86.616479][ T5651] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.630806][ T5651] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.646010][ T3334] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.658149][ T162] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.667725][ T162] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.680081][ T162] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.693181][ T1219] cfg80211: failed to load regulatory.db 2026/05/25 23:52:24 executed programs: 0 [ 86.899722][ T4920] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 86.910776][ T4920] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 86.919549][ T4920] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 86.934636][ T4920] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 86.943136][ T4920] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 87.390027][ T5737] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.397616][ T5737] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.405245][ T5737] bridge_slave_0: entered allmulticast mode [ 87.412182][ T5737] bridge_slave_0: entered promiscuous mode [ 87.422535][ T5737] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.429818][ T5737] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.437337][ T5737] bridge_slave_1: entered allmulticast mode [ 87.444532][ T5737] bridge_slave_1: entered promiscuous mode [ 87.471614][ T5737] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.483000][ T5737] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.515582][ T5737] team0: Port device team_slave_0 added [ 87.523857][ T5737] team0: Port device team_slave_1 added [ 87.557095][ T5737] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 87.564811][ T5737] 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. [ 87.591147][ T5737] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 87.604908][ T5737] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 87.611917][ T5737] 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. [ 87.637860][ T5737] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.680255][ T5737] hsr_slave_0: entered promiscuous mode [ 87.686623][ T5737] hsr_slave_1: entered promiscuous mode [ 87.692720][ T5737] debugfs: 'hsr0' already exists in 'hsr' [ 87.699266][ T5737] Cannot create hsr debugfs directory [ 87.840758][ T5737] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 87.850154][ T5737] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 87.858401][ T5737] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 87.868297][ T5737] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 87.876855][ T5737] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 87.889018][ T5737] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 87.897347][ T5737] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 87.908339][ T5737] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 87.982410][ T5737] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.001015][ T5737] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.012266][ T162] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.019401][ T162] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.032945][ T138] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.040118][ T138] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.316764][ T5737] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.360646][ T5737] veth0_vlan: entered promiscuous mode [ 88.372972][ T5737] veth1_vlan: entered promiscuous mode [ 88.402120][ T5737] veth0_macvtap: entered promiscuous mode [ 88.411363][ T5737] veth1_macvtap: entered promiscuous mode [ 88.432879][ T5737] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.447429][ T5737] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.462710][ T36] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.472390][ T3334] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.483771][ T3334] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.492847][ T3334] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.556994][ T3334] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.566009][ T3334] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 88.596602][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.605591][ T36] wlan1: Creating new IBSS network, 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) [ 89.180120][ T162] netdevsim netdevsim3 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 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-build844638075=/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 4e1406b4de 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=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" ./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=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" -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=\"4e1406b4defac0e2a9d9424c70706f79a7750cf3\" /usr/bin/ld: /tmp/cc4QvxVP.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