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 '10.128.0.255' (ED25519) to the list of known hosts. 2026/07/05 19:07:40 parsed 1 programs [ 88.217114][ T5622] cgroup: Unknown subsys name 'net' [ 88.315013][ T5622] cgroup: Unknown subsys name 'cpuset' [ 88.325062][ T5622] cgroup: Unknown subsys name 'rlimit' [ 88.331062][ T5622] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 89.980851][ T5622] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 92.076286][ T185] cfg80211: failed to load regulatory.db [ 94.274761][ T5651] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.282181][ T5651] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.289424][ T5651] bridge_slave_0: entered allmulticast mode [ 94.297695][ T5651] bridge_slave_0: entered promiscuous mode [ 94.308025][ T5651] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.315401][ T5651] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.322988][ T5651] bridge_slave_1: entered allmulticast mode [ 94.331192][ T5651] bridge_slave_1: entered promiscuous mode [ 94.365329][ T5651] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 94.377121][ T5651] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 94.412029][ T5651] team0: Port device team_slave_0 added [ 94.420109][ T5651] team0: Port device team_slave_1 added [ 94.450453][ T5651] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 94.457872][ 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. [ 94.483897][ T5651] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.496859][ T5651] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.503930][ 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. [ 94.530064][ T5651] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.583678][ T5651] hsr_slave_0: entered promiscuous mode [ 94.590641][ T5651] hsr_slave_1: entered promiscuous mode [ 94.756197][ T5651] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.770664][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 94.779603][ T5651] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.789675][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 94.797787][ T5651] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.809637][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 94.818372][ T5651] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.831909][ T5651] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 94.867787][ T5651] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.875431][ T5651] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.883809][ T5651] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.891026][ T5651] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.955676][ T5651] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.978152][ T36] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.987722][ T36] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.005970][ T5651] 8021q: adding VLAN 0 to HW filter on device team0 [ 95.020657][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.028135][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.043615][ T48] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.051044][ T48] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.420237][ T5651] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 95.473464][ T5651] veth0_vlan: entered promiscuous mode [ 95.487661][ T5651] veth1_vlan: entered promiscuous mode [ 95.524414][ T5651] veth0_macvtap: entered promiscuous mode [ 95.536529][ T5651] veth1_macvtap: entered promiscuous mode [ 95.559375][ T5651] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 95.578552][ T5651] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 95.598787][ T348] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.612373][ T348] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.623452][ T348] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.636298][ T348] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.774332][ T348] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 95.867959][ T348] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 95.928079][ T48] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.936551][ T48] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.972779][ T348] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.010028][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.018051][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.050625][ T348] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.971103][ T4929] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.980055][ T4929] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.992255][ T4929] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.001393][ T4929] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.009300][ T4929] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 2026/07/05 19:07:54 executed programs: 0 [ 98.555359][ T348] bridge_slave_1: left allmulticast mode [ 98.562512][ T348] bridge_slave_1: left promiscuous mode [ 98.570204][ T348] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.592688][ T348] bridge_slave_0: left allmulticast mode [ 98.604055][ T348] bridge_slave_0: left promiscuous mode [ 98.619288][ T348] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.636701][ T4929] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.647183][ T4929] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.656884][ T4929] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.665614][ T4929] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.674287][ T4929] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 98.853927][ T348] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 98.865715][ T348] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 98.878183][ T348] bond0 (unregistering): Released all slaves [ 99.058917][ T348] hsr_slave_0: left promiscuous mode [ 99.068815][ T348] hsr_slave_1: left promiscuous mode [ 99.080698][ T348] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 99.088560][ T348] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 99.097317][ T348] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 99.105660][ T348] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 99.137856][ T348] veth1_macvtap: left promiscuous mode [ 99.144796][ T348] veth0_macvtap: left promiscuous mode [ 99.150499][ T348] veth1_vlan: left promiscuous mode [ 99.159515][ T348] veth0_vlan: left promiscuous mode [ 99.479044][ T348] team0 (unregistering): Port device team_slave_1 removed [ 99.506495][ T348] team0 (unregistering): Port device team_slave_0 removed [ 99.636307][ T5273] 8021q: adding VLAN 0 to HW filter on device eth1 [ 100.227682][ T5747] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.235434][ T5747] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.243000][ T5747] bridge_slave_0: entered allmulticast mode [ 100.251102][ T5747] bridge_slave_0: entered promiscuous mode [ 100.264711][ T5747] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.272106][ T5747] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.279423][ T5747] bridge_slave_1: entered allmulticast mode [ 100.288545][ T5747] bridge_slave_1: entered promiscuous mode [ 100.711453][ T4929] Bluetooth: hci0: command tx timeout [ 100.781072][ T5273] 8021q: adding VLAN 0 to HW filter on device eth2 [ 100.821467][ T5747] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.840600][ T5747] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.968902][ T5747] team0: Port device team_slave_0 added [ 100.999410][ T5747] team0: Port device team_slave_1 added [ 101.215308][ T5747] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 101.222582][ T5747] 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. [ 101.264569][ T5747] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 101.284976][ T5747] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 101.292486][ T5747] 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. [ 101.330280][ T5747] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.529610][ T5747] hsr_slave_0: entered promiscuous mode [ 101.536635][ T5747] hsr_slave_1: entered promiscuous mode [ 101.619853][ T5273] 8021q: adding VLAN 0 to HW filter on device eth3 [ 102.431815][ T5747] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 102.445119][ T5747] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 102.459990][ T5747] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 102.472455][ T5747] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 102.481308][ T5747] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 102.495211][ T5747] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 102.504313][ T5747] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 102.516608][ T5747] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 102.626571][ T5747] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.653623][ T5747] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.670180][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.677679][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.696815][ T48] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.704149][ T48] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.791145][ T4929] Bluetooth: hci0: command tx timeout [ 103.273133][ T5747] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 103.345988][ T5747] veth0_vlan: entered promiscuous mode [ 103.366721][ T5747] veth1_vlan: entered promiscuous mode [ 103.406566][ T5747] veth0_macvtap: entered promiscuous mode [ 103.424717][ T5747] veth1_macvtap: entered promiscuous mode [ 103.451968][ T5747] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 103.475057][ T5747] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 103.497086][ T48] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.518550][ T48] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.563132][ T48] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.589143][ T48] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.646414][ T48] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.663188][ T48] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.698641][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.707285][ 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) 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-build3451061467=/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 d6526ea3e6a 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/ccuienS1.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