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 '10.128.10.7' (ED25519) to the list of known hosts. 2026/02/01 15:28:55 parsed 1 programs [ 73.959505][ T5824] cgroup: Unknown subsys name 'net' [ 74.112373][ T5824] cgroup: Unknown subsys name 'cpuset' [ 74.120750][ T5824] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 75.442614][ T5824] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 78.153715][ T5844] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 79.656563][ T5866] chnl_net:caif_netlink_parms(): no params data found [ 79.763374][ T3449] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.780484][ T3449] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.052175][ T3449] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.060445][ T3449] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.076319][ T5866] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.093361][ T5866] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.102642][ T5866] bridge_slave_0: entered allmulticast mode [ 80.111020][ T5866] bridge_slave_0: entered promiscuous mode [ 80.121027][ T5866] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.128536][ T5866] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.138306][ T5866] bridge_slave_1: entered allmulticast mode [ 80.145995][ T5866] bridge_slave_1: entered promiscuous mode [ 80.381886][ T5866] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.383276][ T5905] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 80.399648][ T5905] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 80.407651][ T5905] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 80.415723][ T5905] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 80.423377][ T5905] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 80.471067][ T5866] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.763616][ T5866] team0: Port device team_slave_0 added [ 80.821447][ T5866] team0: Port device team_slave_1 added [ 81.018600][ T5866] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.029568][ T5866] 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. [ 81.056308][ T5866] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.107400][ T5866] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.116685][ T5866] 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. [ 81.143500][ T5866] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.264131][ T5866] hsr_slave_0: entered promiscuous mode [ 81.271543][ T5866] hsr_slave_1: entered promiscuous mode [ 81.755456][ T5866] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.778530][ T5866] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.803361][ T5866] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.826850][ T5866] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.940509][ T5866] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.962283][ T5866] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.975985][ T58] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.983277][ T58] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.000534][ T58] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.007635][ T58] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.160076][ T5866] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.199982][ T5866] veth0_vlan: entered promiscuous mode [ 82.211358][ T5866] veth1_vlan: entered promiscuous mode [ 82.238415][ T5866] veth0_macvtap: entered promiscuous mode [ 82.248190][ T5866] veth1_macvtap: entered promiscuous mode [ 82.266963][ T5866] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.280414][ T5866] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.296201][ T35] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.305639][ T35] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.316994][ T35] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.326511][ T35] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/02/01 15:29:05 executed programs: 0 [ 82.452393][ T5144] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 82.460661][ T5144] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 82.471389][ T5144] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 82.481530][ T5144] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 82.483488][ T35] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.490137][ T5144] Bluetooth: hci0: command tx timeout [ 82.507274][ T5144] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 82.554070][ T35] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.632158][ T35] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.707137][ T5934] chnl_net:caif_netlink_parms(): no params data found [ 82.769689][ T35] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.811754][ T5934] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.819537][ T5934] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.826734][ T5934] bridge_slave_0: entered allmulticast mode [ 82.834398][ T5934] bridge_slave_0: entered promiscuous mode [ 82.842254][ T5934] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.849801][ T5934] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.856978][ T5934] bridge_slave_1: entered allmulticast mode [ 82.864629][ T5934] bridge_slave_1: entered promiscuous mode [ 82.900844][ T5934] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.912327][ T5934] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.941172][ T5934] team0: Port device team_slave_0 added [ 82.949224][ T5934] team0: Port device team_slave_1 added [ 82.978373][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.985602][ 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. [ 83.012143][ T5934] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 83.024639][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 83.031975][ 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. [ 83.058535][ T5934] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 83.107771][ T5934] hsr_slave_0: entered promiscuous mode [ 83.114151][ T5934] hsr_slave_1: entered promiscuous mode [ 83.121283][ T5934] debugfs: 'hsr0' already exists in 'hsr' [ 83.127078][ T5934] Cannot create hsr debugfs directory [ 84.559356][ T51] Bluetooth: hci0: command tx timeout [ 84.559383][ T5936] Bluetooth: hci1: command tx timeout [ 85.289767][ T35] bridge_slave_1: left allmulticast mode [ 85.295498][ T35] bridge_slave_1: left promiscuous mode [ 85.302063][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.314055][ T35] bridge_slave_0: left allmulticast mode [ 85.323405][ T35] bridge_slave_0: left promiscuous mode [ 85.329312][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.541121][ T35] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 85.552061][ T35] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 85.562218][ T35] bond0 (unregistering): Released all slaves [ 85.677733][ T35] hsr_slave_0: left promiscuous mode [ 85.689480][ T35] hsr_slave_1: left promiscuous mode [ 85.695493][ T35] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.703341][ T35] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.712339][ T35] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.720706][ T35] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.743823][ T35] veth1_macvtap: left promiscuous mode [ 85.759431][ T35] veth0_macvtap: left promiscuous mode [ 85.765094][ T35] veth1_vlan: left promiscuous mode [ 85.770968][ T35] veth0_vlan: left promiscuous mode [ 86.155755][ T35] team0 (unregistering): Port device team_slave_1 removed [ 86.183582][ T35] team0 (unregistering): Port device team_slave_0 removed [ 86.631460][ T5934] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 86.639578][ T5936] Bluetooth: hci1: command tx timeout [ 86.640055][ T51] Bluetooth: hci0: command tx timeout [ 86.649507][ T5934] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 86.678747][ T5934] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 86.695612][ T5934] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 86.725686][ T795] cfg80211: failed to load regulatory.db [ 86.816731][ T5934] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.843121][ T5934] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.857865][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.865020][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.893270][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.900515][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.070114][ T5934] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 87.106702][ T5934] veth0_vlan: entered promiscuous mode [ 87.117314][ T5934] veth1_vlan: entered promiscuous mode [ 87.149854][ T5934] veth0_macvtap: entered promiscuous mode [ 87.158706][ T5934] veth1_macvtap: entered promiscuous mode [ 87.177337][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 87.188522][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 87.208042][ T3526] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.216868][ T3526] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.236416][ T3526] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.245640][ T3526] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.297525][ T3449] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.305725][ T3449] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.332536][ T3526] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.341447][ T3526] 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-build3982555105=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/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/ccdUxPNq.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