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 '10.128.0.204' (ED25519) to the list of known hosts. 2026/08/12 03:58:53 parsed 1 programs [ 97.533764][ T29] cfg80211: failed to load regulatory.db [ 100.789805][ T5624] cgroup: Unknown subsys name 'net' [ 100.928930][ T5624] cgroup: Unknown subsys name 'cpuset' [ 100.941577][ T5624] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 102.787369][ T5624] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 106.776344][ T5642] 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. [ 107.537776][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 107.561159][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 107.577189][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 107.590518][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 107.601557][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 111.114131][ T5665] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.140703][ T5665] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.150923][ T5665] bridge_slave_0: entered allmulticast mode [ 111.162980][ T5665] bridge_slave_0: entered promiscuous mode [ 111.181787][ T5665] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.191144][ T5665] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.200439][ T5665] bridge_slave_1: entered allmulticast mode [ 111.211217][ T5665] bridge_slave_1: entered promiscuous mode [ 111.591416][ T5665] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 111.635281][ T5665] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.649578][ T57] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.670207][ T57] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.751158][ T5665] team0: Port device team_slave_0 added [ 111.761877][ T5665] team0: Port device team_slave_1 added [ 111.870560][ T1093] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.877219][ T5665] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 111.886260][ T1093] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.902853][ T5665] 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. [ 111.941434][ T5665] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 111.975295][ T5665] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 111.985734][ T5665] 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. [ 112.020773][ T5665] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 112.166628][ T5665] hsr_slave_0: entered promiscuous mode [ 112.176271][ T5665] hsr_slave_1: entered promiscuous mode [ 112.417929][ T5665] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 112.436620][ T5665] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 112.446150][ T5665] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 112.462787][ T5665] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 112.481302][ T5665] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 112.499002][ T5665] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 112.514710][ T5665] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 112.538653][ T5665] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 112.687244][ T5665] 8021q: adding VLAN 0 to HW filter on device bond0 [ 112.721969][ T5665] 8021q: adding VLAN 0 to HW filter on device team0 [ 112.740573][ T57] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.752037][ T57] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.779526][ T57] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.788794][ T57] bridge0: port 2(bridge_slave_1) entered forwarding state [ 113.371727][ T5665] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 113.479286][ T5665] veth0_vlan: entered promiscuous mode [ 113.508217][ T5665] veth1_vlan: entered promiscuous mode [ 113.599640][ T5665] veth0_macvtap: entered promiscuous mode [ 113.617995][ T5665] veth1_macvtap: entered promiscuous mode [ 113.649835][ T5665] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 113.668707][ T5665] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 113.715144][ T57] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.754278][ T57] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.766177][ T57] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.795257][ T82] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 2026/08/12 03:59:10 executed programs: 0 [ 113.971828][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 113.990188][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 114.004309][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 114.027339][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 114.044926][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 114.893579][ T5750] bridge0: port 1(bridge_slave_0) entered blocking state [ 114.904552][ T5750] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.915696][ T5750] bridge_slave_0: entered allmulticast mode [ 114.930661][ T5750] bridge_slave_0: entered promiscuous mode [ 114.945888][ T5750] bridge0: port 2(bridge_slave_1) entered blocking state [ 114.957304][ T5750] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.966506][ T5750] bridge_slave_1: entered allmulticast mode [ 114.975978][ T5750] bridge_slave_1: entered promiscuous mode [ 115.024132][ T5750] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 115.037743][ T5750] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 115.092157][ T5750] team0: Port device team_slave_0 added [ 115.103669][ T5750] team0: Port device team_slave_1 added [ 115.142554][ T5750] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 115.150462][ T5750] 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. [ 115.180613][ T5750] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 115.201660][ T5750] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 115.212928][ T5750] 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. [ 115.244414][ T5750] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 115.314433][ T5750] hsr_slave_0: entered promiscuous mode [ 115.324514][ T5750] hsr_slave_1: entered promiscuous mode [ 115.331403][ T5750] debugfs: 'hsr0' already exists in 'hsr' [ 115.338468][ T5750] Cannot create hsr debugfs directory [ 115.569282][ T5750] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 115.583815][ T5750] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 115.596629][ T5750] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 115.617982][ T5750] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 115.630559][ T5750] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 115.647934][ T5750] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 115.657611][ T5750] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 115.669413][ T5750] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 115.767176][ T5750] 8021q: adding VLAN 0 to HW filter on device bond0 [ 115.794413][ T5750] 8021q: adding VLAN 0 to HW filter on device team0 [ 115.810910][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 115.819387][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 115.839668][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 115.851180][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 116.085359][ T4930] Bluetooth: hci0: command tx timeout [ 116.362608][ T5750] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 116.428991][ T5750] veth0_vlan: entered promiscuous mode [ 116.448127][ T5750] veth1_vlan: entered promiscuous mode [ 116.487961][ T5750] veth0_macvtap: entered promiscuous mode [ 116.499642][ T5750] veth1_macvtap: entered promiscuous mode [ 116.525697][ T5750] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 116.541259][ T5750] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 116.575258][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 116.587573][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 116.670914][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 116.680441][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 116.725684][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 116.733222][ T1093] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 116.736694][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 116.750660][ T1093] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 117.429464][ T13] netdevsim netdevsim3 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 117.582326][ T13] netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 117.717156][ T13] netdevsim netdevsim3 netdevsim1 (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-build2238906680=/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 a6c9c731229 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=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./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=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" -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=\"a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea\" /usr/bin/ld: /tmp/cc3weX2g.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