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 '10.128.1.34' (ED25519) to the list of known hosts. 2026/04/25 18:00:51 parsed 1 programs [ 79.193479][ T5615] cgroup: Unknown subsys name 'net' [ 79.323534][ T5615] cgroup: Unknown subsys name 'cpuset' [ 79.334774][ T5615] cgroup: Unknown subsys name 'rlimit' [ 79.341316][ T5615] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 80.852611][ T5615] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 84.186864][ T35] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.209053][ T35] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.407979][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.445663][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.335972][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 86.349018][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 86.358570][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 86.367746][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 86.375977][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 87.478497][ T5674] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.494135][ T5674] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.503124][ T5674] bridge_slave_0: entered allmulticast mode [ 87.512725][ T5674] bridge_slave_0: entered promiscuous mode [ 87.524767][ T5674] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.532179][ T5674] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.540130][ T5674] bridge_slave_1: entered allmulticast mode [ 87.548330][ T5674] bridge_slave_1: entered promiscuous mode [ 87.593938][ T5674] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.607329][ T5674] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.651532][ T5674] team0: Port device team_slave_0 added [ 87.660582][ T5674] team0: Port device team_slave_1 added [ 87.718229][ T5674] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 87.726544][ T5674] 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. [ 87.753666][ T5674] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 87.766940][ T5674] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 87.773971][ T5674] 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. [ 87.800569][ T5674] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.844916][ T5674] hsr_slave_0: entered promiscuous mode [ 87.851652][ T5674] hsr_slave_1: entered promiscuous mode [ 87.986164][ T5674] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 88.001067][ T5674] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 88.010495][ T5674] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 88.023172][ T5674] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 88.033934][ T5674] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 88.044128][ T5674] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 88.052806][ T5674] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 88.065626][ T5674] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 88.099127][ T5674] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.107653][ T5674] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.116682][ T5674] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.124024][ T5674] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.139551][ T111] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.148417][ T111] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.206226][ T5674] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.234860][ T5674] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.249018][ T111] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.256282][ T111] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.274099][ T111] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.281636][ T111] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.420461][ T4932] Bluetooth: hci0: command tx timeout [ 88.595816][ T5674] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.648093][ T5674] veth0_vlan: entered promiscuous mode [ 88.663114][ T5674] veth1_vlan: entered promiscuous mode [ 88.696986][ T5674] veth0_macvtap: entered promiscuous mode [ 88.707494][ T5674] veth1_macvtap: entered promiscuous mode [ 88.728286][ T5674] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.747820][ T5674] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.768497][ T111] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.786549][ T111] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.797091][ T111] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.808704][ T111] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/25 18:01:03 executed programs: 0 [ 88.943588][ T111] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.963554][ T50] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 88.975503][ T50] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 88.985664][ T50] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 88.995246][ T50] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 89.005193][ T50] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 89.044047][ T111] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 89.106517][ T111] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 89.475509][ T5739] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.484789][ T5739] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.493448][ T5739] bridge_slave_0: entered allmulticast mode [ 89.502867][ T5739] bridge_slave_0: entered promiscuous mode [ 89.512349][ T5739] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.520591][ T5739] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.528037][ T5739] bridge_slave_1: entered allmulticast mode [ 89.536128][ T5739] bridge_slave_1: entered promiscuous mode [ 89.571902][ T5739] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.585220][ T5739] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.618765][ T5739] team0: Port device team_slave_0 added [ 89.632342][ T5739] team0: Port device team_slave_1 added [ 89.666885][ T5739] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.674382][ T5739] 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. [ 89.703790][ T5739] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.718900][ T5739] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.728792][ T5739] 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. [ 89.757610][ T5739] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 89.811975][ T5739] hsr_slave_0: entered promiscuous mode [ 89.819071][ T5739] hsr_slave_1: entered promiscuous mode [ 89.826426][ T5739] debugfs: 'hsr0' already exists in 'hsr' [ 89.833260][ T5739] Cannot create hsr debugfs directory [ 90.236429][ T111] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.500330][ T50] Bluetooth: hci0: command tx timeout [ 91.060345][ T50] Bluetooth: hci1: command tx timeout [ 91.680752][ T111] bridge_slave_1: left allmulticast mode [ 91.687654][ T111] bridge_slave_1: left promiscuous mode [ 91.696314][ T111] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.712306][ T111] bridge_slave_0: left allmulticast mode [ 91.718463][ T111] bridge_slave_0: left promiscuous mode [ 91.725022][ T111] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.940128][ T111] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 91.954207][ T111] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 91.964979][ T111] bond0 (unregistering): Released all slaves [ 92.114279][ T987] cfg80211: failed to load regulatory.db [ 92.121066][ T111] hsr_slave_0: left promiscuous mode [ 92.127522][ T111] hsr_slave_1: left promiscuous mode [ 92.141042][ T111] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 92.149260][ T111] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 92.168373][ T111] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 92.177430][ T111] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 92.196931][ T111] veth1_macvtap: left promiscuous mode [ 92.204822][ T111] veth0_macvtap: left promiscuous mode [ 92.211081][ T111] veth1_vlan: left promiscuous mode [ 92.216460][ T111] veth0_vlan: left promiscuous mode [ 92.402788][ T111] team0 (unregistering): Port device team_slave_1 removed [ 92.416631][ T111] team0 (unregistering): Port device team_slave_0 removed [ 92.553716][ T5276] 8021q: adding VLAN 0 to HW filter on device eth1 [ 92.584592][ T50] Bluetooth: hci0: command tx timeout [ 92.825017][ T5739] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 92.848146][ T5739] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 92.858768][ T5739] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 92.876293][ T5739] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 92.887671][ T5739] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 92.902120][ T5739] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 92.915168][ T5739] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.931434][ T5739] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 93.057772][ T5739] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.086407][ T5739] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.103130][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.111891][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.140564][ T50] Bluetooth: hci1: command tx timeout [ 93.146110][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.156715][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.458927][ T5739] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.503830][ T5739] veth0_vlan: entered promiscuous mode [ 93.515843][ T5739] veth1_vlan: entered promiscuous mode [ 93.543972][ T5739] veth0_macvtap: entered promiscuous mode [ 93.554307][ T5739] veth1_macvtap: entered promiscuous mode [ 93.573541][ T5739] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 93.589454][ T5739] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 93.604847][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.614493][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.627630][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.638618][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.700552][ T111] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.709064][ T111] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.741915][ T111] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.751905][ T111] 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-build1049821067=/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/cc2esyG8.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