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 '10.128.0.51' (ED25519) to the list of known hosts. 2026/04/16 18:34:05 parsed 1 programs [ 88.377937][ T5825] cgroup: Unknown subsys name 'net' [ 88.493105][ T5825] cgroup: Unknown subsys name 'cpuset' [ 88.502357][ T5825] cgroup: Unknown subsys name 'rlimit' [ 88.508240][ T5825] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 90.154133][ T5825] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 92.166044][ T9] cfg80211: failed to load regulatory.db [ 94.159504][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 94.170032][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 94.177950][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 94.187530][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 94.195376][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 96.008745][ T48] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.027028][ T48] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.206067][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.219803][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.721088][ T5891] chnl_net:caif_netlink_parms(): no params data found [ 96.962216][ T5891] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.974912][ T5891] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.983364][ T5891] bridge_slave_0: entered allmulticast mode [ 96.991994][ T5891] bridge_slave_0: entered promiscuous mode [ 97.011408][ T5891] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.023427][ T5891] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.031077][ T5891] bridge_slave_1: entered allmulticast mode [ 97.040341][ T5891] bridge_slave_1: entered promiscuous mode [ 97.078225][ T5891] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 97.091923][ T5891] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 97.134706][ T5891] team0: Port device team_slave_0 added [ 97.145966][ T5891] team0: Port device team_slave_1 added [ 97.177707][ T5891] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 97.184796][ T5891] 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. [ 97.213252][ T5891] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 97.226183][ T5891] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 97.233431][ T5891] 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. [ 97.260754][ T5891] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 97.313233][ T5891] hsr_slave_0: entered promiscuous mode [ 97.319874][ T5891] hsr_slave_1: entered promiscuous mode [ 97.480740][ T5891] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 97.494264][ T5891] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 97.503487][ T5891] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 97.514428][ T5891] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 97.522552][ T5891] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 97.533265][ T5891] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 97.543645][ T5891] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 97.555731][ T5891] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 97.641072][ T5891] 8021q: adding VLAN 0 to HW filter on device bond0 [ 97.668757][ T5891] 8021q: adding VLAN 0 to HW filter on device team0 [ 97.686995][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.695006][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 97.713401][ T48] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.720607][ T48] bridge0: port 2(bridge_slave_1) entered forwarding state [ 97.926293][ T5891] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 97.976116][ T5891] veth0_vlan: entered promiscuous mode [ 97.988213][ T5891] veth1_vlan: entered promiscuous mode [ 98.023635][ T5891] veth0_macvtap: entered promiscuous mode [ 98.033330][ T5891] veth1_macvtap: entered promiscuous mode [ 98.059599][ T5891] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 98.073936][ T5891] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 98.093370][ T48] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.104704][ T48] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.115993][ T48] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.130832][ T48] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/16 18:34:18 executed programs: 0 [ 98.270897][ T5142] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.282086][ T5142] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.291828][ T5142] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.301488][ T5142] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.311622][ T5142] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 98.545908][ T5935] chnl_net:caif_netlink_parms(): no params data found [ 98.645245][ T5935] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.652715][ T5935] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.660569][ T5935] bridge_slave_0: entered allmulticast mode [ 98.667924][ T5935] bridge_slave_0: entered promiscuous mode [ 98.678047][ T5935] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.685698][ T5935] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.693035][ T5935] bridge_slave_1: entered allmulticast mode [ 98.700833][ T5935] bridge_slave_1: entered promiscuous mode [ 98.738425][ T5935] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.751521][ T5935] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.791558][ T5935] team0: Port device team_slave_0 added [ 98.801136][ T5935] team0: Port device team_slave_1 added [ 98.835275][ T5935] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.842481][ T5935] 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. [ 98.868842][ T5935] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.886985][ T5935] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.894707][ T5935] 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. [ 98.921150][ T5935] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.980497][ T5935] hsr_slave_0: entered promiscuous mode [ 98.988244][ T5935] hsr_slave_1: entered promiscuous mode [ 98.996040][ T5935] debugfs: 'hsr0' already exists in 'hsr' [ 99.002134][ T5935] Cannot create hsr debugfs directory [ 99.187377][ T5935] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 99.197552][ T5935] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 99.211660][ T5935] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 99.224096][ T5935] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 99.232717][ T5935] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 99.244956][ T5935] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 99.254927][ T5935] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 99.265887][ T5935] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 99.358130][ T5935] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.383337][ T5935] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.395694][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.402906][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.419049][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.426327][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.647406][ T5935] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.690938][ T5935] veth0_vlan: entered promiscuous mode [ 99.708014][ T5935] veth1_vlan: entered promiscuous mode [ 99.738728][ T5935] veth0_macvtap: entered promiscuous mode [ 99.750616][ T5935] veth1_macvtap: entered promiscuous mode [ 99.773882][ T5935] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.790237][ T5935] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.805801][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.817191][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.829374][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.840779][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.914667][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 99.926091][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 99.966171][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 99.975379][ 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) [ 100.553151][ T48] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 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-build4221843335=/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='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at d6526ea3e6a 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/ccWGsQCH.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