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 '10.128.0.160' (ED25519) to the list of known hosts. 2025/12/24 02:07:15 parsed 1 programs [ 86.825115][ T5834] cgroup: Unknown subsys name 'net' [ 86.927367][ T5834] cgroup: Unknown subsys name 'cpuset' [ 86.936419][ T5834] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 88.722942][ T5834] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.765843][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 91.774428][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 91.784257][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 91.793608][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 91.803258][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 92.108839][ T5853] 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. [ 92.136370][ T9] cfg80211: failed to load regulatory.db [ 92.555825][ T5852] chnl_net:caif_netlink_parms(): no params data found [ 93.170222][ T5852] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.179294][ T5852] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.188086][ T5852] bridge_slave_0: entered allmulticast mode [ 93.195555][ T5852] bridge_slave_0: entered promiscuous mode [ 93.209670][ T5852] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.217177][ T5852] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.224447][ T5852] bridge_slave_1: entered allmulticast mode [ 93.232654][ T5852] bridge_slave_1: entered promiscuous mode [ 93.379056][ T5852] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.461015][ T5852] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 93.627814][ T5852] team0: Port device team_slave_0 added [ 93.674460][ T5852] team0: Port device team_slave_1 added [ 93.985860][ T5852] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 93.992847][ T5852] 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. [ 94.019405][ T5852] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.113826][ T5852] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.120955][ T5852] 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. [ 94.149350][ T5852] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.699008][ T5852] hsr_slave_0: entered promiscuous mode [ 94.706714][ T5852] hsr_slave_1: entered promiscuous mode [ 94.872644][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.884492][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.473287][ T3460] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.505384][ T3460] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.910172][ T5852] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 95.967461][ T5852] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 95.991674][ T5852] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 96.008265][ T5852] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 96.294264][ T5852] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.319301][ T5852] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.333395][ T1915] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.340679][ T1915] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.356698][ T3460] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.363963][ T3460] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.537105][ T5852] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.581414][ T5852] veth0_vlan: entered promiscuous mode [ 96.593335][ T5852] veth1_vlan: entered promiscuous mode [ 96.624186][ T5852] veth0_macvtap: entered promiscuous mode [ 96.633398][ T5852] veth1_macvtap: entered promiscuous mode [ 96.652489][ T5852] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.668315][ T5852] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 96.682827][ T3460] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.693125][ T3460] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.706501][ T3460] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.716383][ T3460] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2025/12/24 02:07:27 executed programs: 0 [ 96.896636][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 96.907083][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 96.915489][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 96.930453][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 96.938778][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.167614][ T5945] chnl_net:caif_netlink_parms(): no params data found [ 97.245553][ T5945] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.252776][ T5945] bridge0: port 1(bridge_slave_0) entered disabled state [ 97.260183][ T5945] bridge_slave_0: entered allmulticast mode [ 97.268679][ T5945] bridge_slave_0: entered promiscuous mode [ 97.277133][ T5945] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.284804][ T5945] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.291992][ T5945] bridge_slave_1: entered allmulticast mode [ 97.299658][ T5945] bridge_slave_1: entered promiscuous mode [ 97.336070][ T5945] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 97.347724][ T5945] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 97.380871][ T5945] team0: Port device team_slave_0 added [ 97.388665][ T5945] team0: Port device team_slave_1 added [ 97.419954][ T5945] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 97.427204][ T5945] 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. [ 97.453354][ T5945] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 97.466269][ T5945] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 97.473229][ T5945] 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. [ 97.499784][ T5945] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 97.546631][ T5945] hsr_slave_0: entered promiscuous mode [ 97.553179][ T5945] hsr_slave_1: entered promiscuous mode [ 97.559896][ T5945] debugfs: 'hsr0' already exists in 'hsr' [ 97.565812][ T5945] Cannot create hsr debugfs directory [ 97.731265][ T5945] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 97.741959][ T5945] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 97.752343][ T5945] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 97.762943][ T5945] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 97.856141][ T5945] 8021q: adding VLAN 0 to HW filter on device bond0 [ 97.876639][ T5945] 8021q: adding VLAN 0 to HW filter on device team0 [ 97.891661][ T3460] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.898813][ T3460] bridge0: port 1(bridge_slave_0) entered forwarding state [ 97.916150][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.923285][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.102785][ T5945] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 98.151213][ T5945] veth0_vlan: entered promiscuous mode [ 98.161878][ T5945] veth1_vlan: entered promiscuous mode [ 98.192176][ T5945] veth0_macvtap: entered promiscuous mode [ 98.203395][ T5945] veth1_macvtap: entered promiscuous mode [ 98.226669][ T5945] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 98.240978][ T5945] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 98.255564][ T3460] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.266220][ T3460] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.277144][ T3460] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.291583][ T3460] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.358621][ T4527] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.370142][ T4527] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.404207][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.412109][ T12] 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-build871082840=/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 d6526ea3e 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/ccc2MLIK.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