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 '10.128.1.100' (ED25519) to the list of known hosts. 2026/05/12 01:53:42 parsed 1 programs [ 81.193565][ T5637] cgroup: Unknown subsys name 'net' [ 81.283298][ T5637] cgroup: Unknown subsys name 'cpuset' [ 81.291906][ T5637] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 82.732929][ T5637] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 85.997318][ T5654] 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. [ 86.824066][ T24] cfg80211: failed to load regulatory.db [ 87.670834][ T5711] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 87.680422][ T5711] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 87.690538][ T5711] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 87.701656][ T5711] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 87.709915][ T5711] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 87.872528][ T5653] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.880920][ T5653] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.891245][ T5653] bridge_slave_0: entered allmulticast mode [ 87.899835][ T5653] bridge_slave_0: entered promiscuous mode [ 87.931455][ T5653] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.959804][ T5653] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.974824][ T5653] bridge_slave_1: entered allmulticast mode [ 87.985444][ T5653] bridge_slave_1: entered promiscuous mode [ 88.144458][ T5653] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.161611][ T5653] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.529967][ T5653] team0: Port device team_slave_0 added [ 88.613726][ T5653] team0: Port device team_slave_1 added [ 88.752571][ T5653] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 88.768040][ T5653] 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. [ 88.794288][ T5653] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 88.807743][ T5653] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 88.813121][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.814734][ T5653] 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. [ 88.844523][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 88.851656][ T5653] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 88.986592][ T202] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 89.002210][ T202] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 89.032815][ T5653] hsr_slave_0: entered promiscuous mode [ 89.043157][ T5653] hsr_slave_1: entered promiscuous mode [ 89.395855][ T5653] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 89.412836][ T5653] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 89.423415][ T5653] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 89.450363][ T5653] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 89.458894][ T5653] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 89.472165][ T5653] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 89.481496][ T5653] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 89.494353][ T5653] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 89.562808][ T5653] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.585532][ T5653] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.601025][ T1159] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.608802][ T1159] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.624480][ T202] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.631846][ T202] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.780788][ T5711] Bluetooth: hci0: command tx timeout [ 89.920938][ T5653] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 89.963491][ T5653] veth0_vlan: entered promiscuous mode [ 89.976020][ T5653] veth1_vlan: entered promiscuous mode [ 90.008537][ T5653] veth0_macvtap: entered promiscuous mode [ 90.018565][ T5653] veth1_macvtap: entered promiscuous mode [ 90.040440][ T5653] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 90.056048][ T5653] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 90.073211][ T37] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.082391][ T37] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.096637][ T37] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.105852][ T37] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/05/12 01:53:53 executed programs: 0 [ 90.251883][ T50] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 90.262389][ T50] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 90.272444][ T50] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 90.283103][ T50] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 90.293190][ T50] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 90.714853][ T5757] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.722442][ T5757] bridge0: port 1(bridge_slave_0) entered disabled state [ 90.729781][ T5757] bridge_slave_0: entered allmulticast mode [ 90.736681][ T5757] bridge_slave_0: entered promiscuous mode [ 90.745925][ T5757] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.753702][ T5757] bridge0: port 2(bridge_slave_1) entered disabled state [ 90.761351][ T5757] bridge_slave_1: entered allmulticast mode [ 90.769284][ T5757] bridge_slave_1: entered promiscuous mode [ 90.797035][ T5757] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 90.808897][ T5757] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 90.844638][ T5757] team0: Port device team_slave_0 added [ 90.852701][ T5757] team0: Port device team_slave_1 added [ 90.878460][ T5757] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 90.885580][ T5757] 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. [ 90.912458][ T5757] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 90.925946][ T5757] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 90.933294][ T5757] 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. [ 90.959569][ T5757] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 91.011045][ T5757] hsr_slave_0: entered promiscuous mode [ 91.017735][ T5757] hsr_slave_1: entered promiscuous mode [ 91.024396][ T5757] debugfs: 'hsr0' already exists in 'hsr' [ 91.030367][ T5757] Cannot create hsr debugfs directory [ 91.174590][ T5757] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 91.185497][ T5757] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 91.193992][ T5757] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 91.205075][ T5757] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 91.213070][ T5757] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 91.223007][ T5757] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 91.231768][ T5757] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 91.241455][ T5757] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 91.317645][ T5757] 8021q: adding VLAN 0 to HW filter on device bond0 [ 91.339809][ T5757] 8021q: adding VLAN 0 to HW filter on device team0 [ 91.354127][ T1159] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.361275][ T1159] bridge0: port 1(bridge_slave_0) entered forwarding state [ 91.375303][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.382526][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.676973][ T5757] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 91.722547][ T5757] veth0_vlan: entered promiscuous mode [ 91.734006][ T5757] veth1_vlan: entered promiscuous mode [ 91.762088][ T5757] veth0_macvtap: entered promiscuous mode [ 91.772112][ T5757] veth1_macvtap: entered promiscuous mode [ 91.792263][ T5757] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 91.805417][ T5757] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 91.820125][ T202] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.829236][ T202] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.840554][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.851782][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.857809][ T5711] Bluetooth: hci0: command tx timeout [ 91.922321][ T1159] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.936471][ T1159] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 91.965813][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.973888][ T13] 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) [ 92.247133][ T3287] 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-build839784451=/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 64219f15374 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=64219f1537429ca826770c4d6f3d49ee6964d16c -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-170613" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=64219f1537429ca826770c4d6f3d49ee6964d16c -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-170613" ./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=64219f1537429ca826770c4d6f3d49ee6964d16c -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-170613" -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=\"64219f1537429ca826770c4d6f3d49ee6964d16c\" /usr/bin/ld: /tmp/ccqMzj7y.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