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 '10.128.1.118' (ED25519) to the list of known hosts. 2026/01/06 07:08:17 parsed 1 programs [ 92.963020][ T5811] cgroup: Unknown subsys name 'net' [ 93.039286][ T5811] cgroup: Unknown subsys name 'cpuset' [ 93.048332][ T5811] cgroup: Unknown subsys name 'rlimit' [ 93.054408][ T5811] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 94.681928][ T5811] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 97.134264][ T43] cfg80211: failed to load regulatory.db [ 98.548688][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.560065][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.567878][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.576573][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.588882][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 99.285450][ T5840] chnl_net:caif_netlink_parms(): no params data found [ 99.715779][ T5840] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.738895][ T5840] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.746734][ T5840] bridge_slave_0: entered allmulticast mode [ 99.755742][ T5840] bridge_slave_0: entered promiscuous mode [ 99.783651][ T5840] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.790968][ T5840] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.798668][ T5840] bridge_slave_1: entered allmulticast mode [ 99.806998][ T5840] bridge_slave_1: entered promiscuous mode [ 100.071751][ T3847] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.094641][ T3847] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 100.187339][ T5840] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.233362][ T3137] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.241313][ T3137] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 100.256243][ T5840] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.334915][ T5840] team0: Port device team_slave_0 added [ 100.418360][ T5840] team0: Port device team_slave_1 added [ 100.575505][ T5840] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.582521][ T5840] 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. [ 100.608884][ T5840] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.635689][ T5840] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.643104][ T5840] 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. [ 100.669842][ T5840] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.848514][ T5840] hsr_slave_0: entered promiscuous mode [ 100.855120][ T5840] hsr_slave_1: entered promiscuous mode [ 101.402110][ T5840] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.416000][ T5840] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.427442][ T5840] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.438899][ T5840] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.519804][ T5840] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.546720][ T5840] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.559655][ T2197] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.567045][ T2197] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.582451][ T3578] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.589630][ T3578] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.775219][ T5840] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.820283][ T5840] veth0_vlan: entered promiscuous mode [ 101.832677][ T5840] veth1_vlan: entered promiscuous mode [ 101.863195][ T5840] veth0_macvtap: entered promiscuous mode [ 101.872728][ T5840] veth1_macvtap: entered promiscuous mode [ 101.893475][ T5840] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.909481][ T5840] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.924937][ T1129] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.935526][ T1129] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.946604][ T1129] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.960869][ T1129] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/01/06 07:08:30 executed programs: 0 [ 102.098330][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 102.108455][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 102.116231][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 102.124309][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 102.132117][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 102.156083][ T1129] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.225570][ T1129] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.298274][ T1129] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.381189][ T1129] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.412658][ T5922] chnl_net:caif_netlink_parms(): no params data found [ 102.498363][ T5922] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.505969][ T5922] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.513392][ T5922] bridge_slave_0: entered allmulticast mode [ 102.520609][ T5922] bridge_slave_0: entered promiscuous mode [ 102.530306][ T5922] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.537753][ T5922] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.545017][ T5922] bridge_slave_1: entered allmulticast mode [ 102.552226][ T5922] bridge_slave_1: entered promiscuous mode [ 102.591314][ T5922] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 102.603655][ T5922] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 102.638323][ T5922] team0: Port device team_slave_0 added [ 102.646355][ T5922] team0: Port device team_slave_1 added [ 102.679132][ T5922] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 102.686507][ T5922] 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. [ 102.712953][ T5922] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 102.725430][ T5922] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 102.732600][ T5922] 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. [ 102.758672][ T5922] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 102.807236][ T5922] hsr_slave_0: entered promiscuous mode [ 102.815120][ T5922] hsr_slave_1: entered promiscuous mode [ 102.821275][ T5922] debugfs: 'hsr0' already exists in 'hsr' [ 102.827380][ T5922] Cannot create hsr debugfs directory [ 104.173961][ T52] Bluetooth: hci0: command tx timeout [ 104.934305][ T1129] bridge_slave_1: left allmulticast mode [ 104.941210][ T1129] bridge_slave_1: left promiscuous mode [ 104.948629][ T1129] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.959376][ T1129] bridge_slave_0: left allmulticast mode [ 104.966464][ T1129] bridge_slave_0: left promiscuous mode [ 104.972182][ T1129] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.202544][ T1129] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 105.214334][ T1129] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 105.224828][ T1129] bond0 (unregistering): Released all slaves [ 105.354261][ T1129] hsr_slave_0: left promiscuous mode [ 105.360636][ T1129] hsr_slave_1: left promiscuous mode [ 105.372974][ T1129] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 105.380612][ T1129] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 105.391014][ T1129] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 105.398806][ T1129] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 105.423674][ T1129] veth1_macvtap: left promiscuous mode [ 105.429859][ T1129] veth0_macvtap: left promiscuous mode [ 105.436029][ T1129] veth1_vlan: left promiscuous mode [ 105.441503][ T1129] veth0_vlan: left promiscuous mode [ 105.893021][ T1129] team0 (unregistering): Port device team_slave_1 removed [ 105.919096][ T1129] team0 (unregistering): Port device team_slave_0 removed [ 106.265624][ T52] Bluetooth: hci0: command tx timeout [ 106.362578][ T5922] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 106.382064][ T5922] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 106.401460][ T5922] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 106.433667][ T5922] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 106.572701][ T5922] 8021q: adding VLAN 0 to HW filter on device bond0 [ 106.602200][ T5922] 8021q: adding VLAN 0 to HW filter on device team0 [ 106.617514][ T2197] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.624751][ T2197] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.649146][ T2197] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.656434][ T2197] bridge0: port 2(bridge_slave_1) entered forwarding state [ 106.913275][ T5922] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 106.954937][ T5922] veth0_vlan: entered promiscuous mode [ 106.966536][ T5922] veth1_vlan: entered promiscuous mode [ 106.998022][ T5922] veth0_macvtap: entered promiscuous mode [ 107.007423][ T5922] veth1_macvtap: entered promiscuous mode [ 107.027487][ T5922] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 107.041967][ T5922] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 107.057774][ T1922] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.067869][ T1922] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.078927][ T1922] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.089438][ T1922] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.148201][ T2197] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.160852][ T2197] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.192080][ T1922] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.201474][ T1922] 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-build751401350=/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='go1.24.4' 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/ccmYWDXN.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): 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