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 '10.128.1.106' (ED25519) to the list of known hosts. 2026/01/19 20:27:13 parsed 1 programs [ 90.458194][ T5835] cgroup: Unknown subsys name 'net' [ 90.604128][ T5835] cgroup: Unknown subsys name 'cpuset' [ 90.613204][ T5835] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 92.243852][ T5835] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 92.341929][ T10] cfg80211: failed to load regulatory.db [ 95.537951][ T5848] 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. [ 96.725179][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 96.753051][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 96.762045][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 96.772415][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 96.781032][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.476855][ T995] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.520348][ T995] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.642656][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.661819][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.626952][ T5901] chnl_net:caif_netlink_parms(): no params data found [ 98.878801][ T5901] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.887066][ T5901] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.896015][ T5901] bridge_slave_0: entered allmulticast mode [ 98.906149][ T5901] bridge_slave_0: entered promiscuous mode [ 98.915983][ T5901] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.923387][ T5901] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.930820][ T5901] bridge_slave_1: entered allmulticast mode [ 98.937963][ T5901] bridge_slave_1: entered promiscuous mode [ 98.972144][ T5901] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.983869][ T5901] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.016537][ T5901] team0: Port device team_slave_0 added [ 99.024461][ T5901] team0: Port device team_slave_1 added [ 99.050104][ T5901] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.058006][ T5901] 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. [ 99.084015][ T5901] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.096692][ T5901] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.104204][ T5901] 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. [ 99.130366][ T5901] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.174036][ T5901] hsr_slave_0: entered promiscuous mode [ 99.180619][ T5901] hsr_slave_1: entered promiscuous mode [ 99.337526][ T5901] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 99.349578][ T5901] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 99.360087][ T5901] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 99.371065][ T5901] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 99.404006][ T5901] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.411409][ T5901] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.419410][ T5901] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.426733][ T5901] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.485404][ T5901] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.503901][ T1131] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.513786][ T1131] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.530131][ T5901] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.543743][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.550971][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.565492][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.572880][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.754350][ T5901] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.798087][ T5901] veth0_vlan: entered promiscuous mode [ 99.812810][ T5901] veth1_vlan: entered promiscuous mode [ 99.844641][ T5901] veth0_macvtap: entered promiscuous mode [ 99.853774][ T5901] veth1_macvtap: entered promiscuous mode [ 99.875282][ T5901] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.891523][ T5901] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.906717][ T36] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.917386][ T36] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.928955][ T36] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.940340][ T36] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/01/19 20:27:25 executed programs: 0 [ 100.068809][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 100.078157][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 100.089468][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 100.092553][ T1131] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.098102][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 100.115845][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.185998][ T1131] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.294069][ T1131] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.344977][ T5940] chnl_net:caif_netlink_parms(): no params data found [ 100.383836][ T1131] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.455818][ T5940] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.463154][ T5940] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.472400][ T5940] bridge_slave_0: entered allmulticast mode [ 100.479550][ T5940] bridge_slave_0: entered promiscuous mode [ 100.488588][ T5940] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.496672][ T5940] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.504380][ T5940] bridge_slave_1: entered allmulticast mode [ 100.512726][ T5940] bridge_slave_1: entered promiscuous mode [ 100.552242][ T5940] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.564737][ T5940] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.602552][ T5940] team0: Port device team_slave_0 added [ 100.611219][ T5940] team0: Port device team_slave_1 added [ 100.640090][ T5940] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.647832][ T5940] 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. [ 100.673758][ T5940] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.687965][ T5940] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.695741][ T5940] 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. [ 100.721947][ T5940] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.773740][ T5940] hsr_slave_0: entered promiscuous mode [ 100.780512][ T5940] hsr_slave_1: entered promiscuous mode [ 100.786774][ T5940] debugfs: 'hsr0' already exists in 'hsr' [ 100.793192][ T5940] Cannot create hsr debugfs directory [ 102.181563][ T52] Bluetooth: hci0: command tx timeout [ 103.033796][ T1131] bridge_slave_1: left allmulticast mode [ 103.039577][ T1131] bridge_slave_1: left promiscuous mode [ 103.046717][ T1131] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.059048][ T1131] bridge_slave_0: left allmulticast mode [ 103.066128][ T1131] bridge_slave_0: left promiscuous mode [ 103.072174][ T1131] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.297312][ T1131] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 103.309017][ T1131] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 103.323931][ T1131] bond0 (unregistering): Released all slaves [ 103.450108][ T1131] hsr_slave_0: left promiscuous mode [ 103.456815][ T1131] hsr_slave_1: left promiscuous mode [ 103.463661][ T1131] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 103.471323][ T1131] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 103.482993][ T1131] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 103.490808][ T1131] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 103.517015][ T1131] veth1_macvtap: left promiscuous mode [ 103.522878][ T1131] veth0_macvtap: left promiscuous mode [ 103.528637][ T1131] veth1_vlan: left promiscuous mode [ 103.536180][ T1131] veth0_vlan: left promiscuous mode [ 104.018697][ T1131] team0 (unregistering): Port device team_slave_1 removed [ 104.048168][ T1131] team0 (unregistering): Port device team_slave_0 removed [ 104.270441][ T52] Bluetooth: hci0: command tx timeout [ 104.563852][ T5940] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 104.591893][ T5940] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 104.611518][ T5940] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 104.634612][ T5940] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 104.804867][ T5940] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.835106][ T5940] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.853256][ T1131] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.860514][ T1131] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.880194][ T995] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.887548][ T995] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.081830][ T5940] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 105.129898][ T5940] veth0_vlan: entered promiscuous mode [ 105.143281][ T5940] veth1_vlan: entered promiscuous mode [ 105.174077][ T5940] veth0_macvtap: entered promiscuous mode [ 105.183325][ T5940] veth1_macvtap: entered promiscuous mode [ 105.202378][ T5940] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.218346][ T5940] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.232908][ T3516] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.244359][ T3516] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.254806][ T3516] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.264438][ T3516] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.324638][ T3516] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.336784][ T3516] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.364488][ T1131] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.372817][ T1131] 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-build1707627119=/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/ccI2gOeT.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