SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) no interfaces have a carrier [ 60.247047][ T5258] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.288142][ T5258] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.5' (ED25519) to the list of known hosts. 2026/07/12 22:25:10 parsed 1 programs syzkaller login: [ 92.351725][ T29] cfg80211: failed to load regulatory.db [ 95.301514][ T5612] cgroup: Unknown subsys name 'net' [ 95.410856][ T5612] cgroup: Unknown subsys name 'cpuset' [ 95.421004][ T5612] cgroup: Unknown subsys name 'rlimit' [ 95.426931][ T5612] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 97.081405][ T5612] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 101.203589][ T1059] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 101.212833][ T1059] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 101.283792][ T140] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 101.292024][ T140] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.238339][ T5660] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 102.248946][ T5660] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 102.257599][ T5660] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 102.268192][ T5660] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 102.276974][ T5660] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 104.002739][ T5683] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.010711][ T5683] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.018400][ T5683] bridge_slave_0: entered allmulticast mode [ 104.025960][ T5683] bridge_slave_0: entered promiscuous mode [ 104.038080][ T5683] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.045408][ T5683] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.053513][ T5683] bridge_slave_1: entered allmulticast mode [ 104.060927][ T5683] bridge_slave_1: entered promiscuous mode [ 104.092875][ T5683] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 104.105954][ T5683] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 104.139478][ T5683] team0: Port device team_slave_0 added [ 104.147125][ T5683] team0: Port device team_slave_1 added [ 104.176787][ T5683] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 104.184303][ T5683] 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. [ 104.211503][ T5683] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 104.224347][ T5683] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 104.231509][ T5683] 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. [ 104.258247][ T5683] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 104.306044][ T5683] hsr_slave_0: entered promiscuous mode [ 104.313322][ T5683] hsr_slave_1: entered promiscuous mode [ 104.466508][ T5683] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 104.481912][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 104.491603][ T5683] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 104.500917][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 104.509269][ T5683] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 104.519707][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 104.528178][ T5683] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 104.542284][ T5683] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 104.578643][ T5683] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.586654][ T5683] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.595237][ T5683] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.602748][ T5683] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.618103][ T140] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.627591][ T140] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.695216][ T5683] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.726244][ T5683] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.743806][ T140] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.751422][ T140] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.767038][ T36] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.774560][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.144124][ T5683] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 105.204797][ T5683] veth0_vlan: entered promiscuous mode [ 105.220958][ T5683] veth1_vlan: entered promiscuous mode [ 105.256223][ T5683] veth0_macvtap: entered promiscuous mode [ 105.266581][ T5683] veth1_macvtap: entered promiscuous mode [ 105.291158][ T5683] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.309847][ T5683] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.331115][ T36] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.343271][ T36] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.355699][ T36] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.365796][ T36] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.530173][ T1107] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.596274][ T1107] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.702472][ T1107] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.790386][ T1107] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/07/12 22:25:24 executed programs: 0 [ 106.334019][ T4914] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 106.346409][ T4914] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 106.355208][ T4914] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 106.366072][ T4914] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 106.376964][ T4914] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 106.863329][ T5733] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.871389][ T5733] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.879067][ T5733] bridge_slave_0: entered allmulticast mode [ 106.886432][ T5733] bridge_slave_0: entered promiscuous mode [ 106.895256][ T5733] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.903071][ T5733] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.911879][ T5733] bridge_slave_1: entered allmulticast mode [ 106.919511][ T5733] bridge_slave_1: entered promiscuous mode [ 106.952934][ T5733] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 106.966798][ T5733] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 107.005048][ T5733] team0: Port device team_slave_0 added [ 107.013369][ T5733] team0: Port device team_slave_1 added [ 107.041642][ T5733] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 107.048807][ T5733] 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. [ 107.077654][ T5733] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 107.092621][ T5733] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 107.100053][ T5733] 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. [ 107.126486][ T5733] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 107.173219][ T5733] hsr_slave_0: entered promiscuous mode [ 107.180662][ T5733] hsr_slave_1: entered promiscuous mode [ 107.188077][ T5733] debugfs: 'hsr0' already exists in 'hsr' [ 107.194020][ T5733] Cannot create hsr debugfs directory [ 108.168140][ T1107] bridge_slave_1: left allmulticast mode [ 108.178432][ T1107] bridge_slave_1: left promiscuous mode [ 108.193565][ T1107] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.210567][ T1107] bridge_slave_0: left allmulticast mode [ 108.227258][ T1107] bridge_slave_0: left promiscuous mode [ 108.233875][ T1107] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.429605][ T4914] Bluetooth: hci0: command tx timeout [ 108.513728][ T1107] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 108.532994][ T1107] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 108.545779][ T1107] bond0 (unregistering): Released all slaves [ 108.745533][ T1107] hsr_slave_0: left promiscuous mode [ 108.752162][ T1107] hsr_slave_1: left promiscuous mode [ 108.762671][ T1107] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 108.777877][ T1107] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 108.788461][ T1107] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 108.796646][ T1107] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 108.812556][ T1107] veth1_macvtap: left promiscuous mode [ 108.819156][ T1107] veth0_macvtap: left promiscuous mode [ 108.824861][ T1107] veth1_vlan: left promiscuous mode [ 108.831614][ T1107] veth0_vlan: left promiscuous mode [ 109.072451][ T1107] team0 (unregistering): Port device team_slave_1 removed [ 109.111924][ T1107] team0 (unregistering): Port device team_slave_0 removed [ 109.300336][ T5258] 8021q: adding VLAN 0 to HW filter on device eth1 [ 109.662083][ T5733] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 109.677386][ T5733] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 109.692670][ T5733] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 109.719673][ T5733] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 109.730171][ T5733] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 109.745353][ T5733] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 109.755791][ T5733] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 109.772494][ T5733] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 110.121747][ T5733] 8021q: adding VLAN 0 to HW filter on device bond0 [ 110.185026][ T5733] 8021q: adding VLAN 0 to HW filter on device team0 [ 110.226588][ T1059] bridge0: port 1(bridge_slave_0) entered blocking state [ 110.233948][ T1059] bridge0: port 1(bridge_slave_0) entered forwarding state [ 110.262053][ T1059] bridge0: port 2(bridge_slave_1) entered blocking state [ 110.269533][ T1059] bridge0: port 2(bridge_slave_1) entered forwarding state [ 110.508331][ T4914] Bluetooth: hci0: command tx timeout [ 110.810181][ T5733] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 110.855888][ T5733] veth0_vlan: entered promiscuous mode [ 110.870641][ T5733] veth1_vlan: entered promiscuous mode [ 110.900974][ T5733] veth0_macvtap: entered promiscuous mode [ 110.911755][ T5733] veth1_macvtap: entered promiscuous mode [ 110.931557][ T5733] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 110.945252][ T5733] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 110.961432][ T62] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.971879][ T62] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.983336][ T62] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.995731][ T62] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.064377][ T62] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.075156][ T62] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.115215][ T62] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.124312][ T62] 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-build2659371263=/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='go1.26.0' 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/ccjCo44G.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