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 '10.128.1.235' (ED25519) to the list of known hosts. 2026/01/07 00:46:24 parsed 1 programs [ 77.333022][ T5820] cgroup: Unknown subsys name 'net' [ 77.499699][ T5820] cgroup: Unknown subsys name 'cpuset' [ 77.508270][ T5820] cgroup: Unknown subsys name 'rlimit' [ 77.514649][ T5820] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 78.853466][ T5820] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 83.236206][ T5879] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 83.245623][ T5879] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 83.254489][ T5879] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 83.267993][ T5879] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 83.287351][ T5879] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 84.513731][ T5876] chnl_net:caif_netlink_parms(): no params data found [ 84.881678][ T1595] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.894198][ T1595] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.926561][ T5876] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.934920][ T5876] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.946663][ T5876] bridge_slave_0: entered allmulticast mode [ 84.953495][ T5876] bridge_slave_0: entered promiscuous mode [ 84.964541][ T5876] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.971873][ T5876] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.979553][ T5876] bridge_slave_1: entered allmulticast mode [ 84.987591][ T5876] bridge_slave_1: entered promiscuous mode [ 85.049013][ T5876] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.066197][ T5876] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.111607][ T1595] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.119657][ T5876] team0: Port device team_slave_0 added [ 85.128614][ T1595] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.141769][ T5876] team0: Port device team_slave_1 added [ 85.258436][ T5876] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.265446][ T5876] 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. [ 85.345698][ T5876] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.379659][ T5876] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.386799][ T5876] 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. [ 85.467256][ T5876] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.682815][ T5876] hsr_slave_0: entered promiscuous mode [ 85.691371][ T5876] hsr_slave_1: entered promiscuous mode [ 85.860525][ T5876] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.872239][ T5876] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.882317][ T5876] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.893866][ T5876] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.955531][ T5876] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.978488][ T5876] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.990197][ T152] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.997604][ T152] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.011700][ T50] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.018987][ T50] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.155561][ T5876] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.197097][ T5876] veth0_vlan: entered promiscuous mode [ 86.206931][ T5876] veth1_vlan: entered promiscuous mode [ 86.232621][ T5876] veth0_macvtap: entered promiscuous mode [ 86.241212][ T5876] veth1_macvtap: entered promiscuous mode [ 86.260810][ T5876] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.275113][ T5876] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.290880][ T75] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.302295][ T75] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.312862][ T75] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.323169][ T75] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/01/07 00:46:35 executed programs: 0 [ 86.458567][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 86.459935][ T75] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.467300][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 86.486909][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 86.496395][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 86.504680][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 86.509150][ T978] cfg80211: failed to load regulatory.db [ 86.557776][ T75] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.650497][ T75] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.701243][ T75] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.720699][ T5934] chnl_net:caif_netlink_parms(): no params data found [ 86.782514][ T5934] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.790231][ T5934] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.798630][ T5934] bridge_slave_0: entered allmulticast mode [ 86.805441][ T5934] bridge_slave_0: entered promiscuous mode [ 86.813945][ T5934] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.821948][ T5934] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.832485][ T5934] bridge_slave_1: entered allmulticast mode [ 86.839797][ T5934] bridge_slave_1: entered promiscuous mode [ 86.871161][ T5934] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 86.882353][ T5934] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 86.911485][ T5934] team0: Port device team_slave_0 added [ 86.920533][ T5934] team0: Port device team_slave_1 added [ 86.944266][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 86.951276][ T5934] 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. [ 86.977549][ T5934] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 86.990886][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 86.997989][ T5934] 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. [ 87.024388][ T5934] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.060168][ T5934] hsr_slave_0: entered promiscuous mode [ 87.066353][ T5934] hsr_slave_1: entered promiscuous mode [ 87.073452][ T5934] debugfs: 'hsr0' already exists in 'hsr' [ 87.079554][ T5934] Cannot create hsr debugfs directory [ 88.587055][ T52] Bluetooth: hci0: command tx timeout [ 89.215409][ T75] bridge_slave_1: left allmulticast mode [ 89.222182][ T75] bridge_slave_1: left promiscuous mode [ 89.229350][ T75] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.239814][ T75] bridge_slave_0: left allmulticast mode [ 89.245631][ T75] bridge_slave_0: left promiscuous mode [ 89.253153][ T75] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.438391][ T75] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 89.449005][ T75] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 89.459162][ T75] bond0 (unregistering): Released all slaves [ 89.559699][ T75] hsr_slave_0: left promiscuous mode [ 89.567873][ T75] hsr_slave_1: left promiscuous mode [ 89.574119][ T75] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 89.582445][ T75] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 89.591605][ T75] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 89.601614][ T75] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 89.631453][ T75] veth1_macvtap: left promiscuous mode [ 89.639041][ T75] veth0_macvtap: left promiscuous mode [ 89.644817][ T75] veth1_vlan: left promiscuous mode [ 89.651206][ T75] veth0_vlan: left promiscuous mode [ 90.101922][ T75] team0 (unregistering): Port device team_slave_1 removed [ 90.125643][ T75] team0 (unregistering): Port device team_slave_0 removed [ 90.616007][ T5934] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 90.643597][ T5934] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 90.659169][ T5934] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 90.673471][ T52] Bluetooth: hci0: command tx timeout [ 90.688034][ T5934] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 90.826064][ T5934] 8021q: adding VLAN 0 to HW filter on device bond0 [ 90.859105][ T5934] 8021q: adding VLAN 0 to HW filter on device team0 [ 90.873799][ T1595] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.881148][ T1595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.910588][ T75] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.917993][ T75] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.170255][ T5934] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 91.238467][ T5934] veth0_vlan: entered promiscuous mode [ 91.253732][ T5934] veth1_vlan: entered promiscuous mode [ 91.302918][ T5934] veth0_macvtap: entered promiscuous mode [ 91.315572][ T5934] veth1_macvtap: entered promiscuous mode [ 91.344136][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 91.363969][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 91.384378][ T152] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.405591][ T152] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.421006][ T152] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.442573][ T152] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.516087][ T152] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.537941][ T152] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 91.576976][ T152] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.585030][ T152] 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-build4196879027=/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 4fb8ef376b 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=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" ./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=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" -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=\"4fb8ef376b21a14e0ed92c40c92913ac567bd2a3\" /usr/bin/ld: /tmp/ccjQcpXA.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