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 '10.128.0.121' (ED25519) to the list of known hosts. 2026/07/04 15:28:07 parsed 1 programs [ 79.836991][ T5620] cgroup: Unknown subsys name 'net' [ 79.951469][ T5620] cgroup: Unknown subsys name 'cpuset' [ 79.960847][ T5620] cgroup: Unknown subsys name 'rlimit' [ 79.967166][ T5620] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 81.368449][ T5620] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 84.895335][ T62] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.906838][ T62] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.938708][ T1100] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.947321][ T1100] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.679507][ T5677] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.687562][ T5677] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.695984][ T5677] bridge_slave_0: entered allmulticast mode [ 86.703699][ T5677] bridge_slave_0: entered promiscuous mode [ 86.713879][ T5677] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.721844][ T5677] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.730447][ T5677] bridge_slave_1: entered allmulticast mode [ 86.737921][ T5677] bridge_slave_1: entered promiscuous mode [ 86.767105][ T5677] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 86.779658][ T5677] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 86.809785][ T5677] team0: Port device team_slave_0 added [ 86.817799][ T5677] team0: Port device team_slave_1 added [ 86.843948][ T5677] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 86.851390][ T5677] 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. [ 86.878731][ T5677] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 86.891831][ T5677] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 86.899418][ T5677] 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. [ 86.926572][ T5677] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 86.971422][ T5677] hsr_slave_0: entered promiscuous mode [ 86.978965][ T5677] hsr_slave_1: entered promiscuous mode [ 87.227778][ T5677] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 87.245460][ T5677] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 87.254099][ T5677] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 87.266484][ T5677] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 87.277583][ T5677] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 87.287512][ T5677] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 87.296623][ T5677] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 87.306382][ T5677] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 87.392373][ T5677] 8021q: adding VLAN 0 to HW filter on device bond0 [ 87.416062][ T5677] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.430818][ T1100] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.439064][ T1100] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.459171][ T372] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.466592][ T372] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.777853][ T5677] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 87.825392][ T5677] veth0_vlan: entered promiscuous mode [ 87.841597][ T5677] veth1_vlan: entered promiscuous mode [ 87.873959][ T5677] veth0_macvtap: entered promiscuous mode [ 87.884407][ T5677] veth1_macvtap: entered promiscuous mode [ 87.907238][ T5677] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 87.922930][ T5677] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 87.940185][ T62] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.950838][ T62] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.967330][ T62] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.977102][ T62] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.114631][ T4929] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 88.117069][ T1100] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.124748][ T4929] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 88.143143][ T4929] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 88.154997][ T4929] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 88.163353][ T4929] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 88.226372][ T1100] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.286708][ T1100] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.391115][ T1100] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/07/04 15:28:19 executed programs: 0 [ 89.251528][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 89.261793][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 89.273003][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 89.283052][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 89.293808][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.700344][ T5744] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.708500][ T5744] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.716030][ T5744] bridge_slave_0: entered allmulticast mode [ 89.723817][ T5744] bridge_slave_0: entered promiscuous mode [ 89.733151][ T5744] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.740572][ T5744] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.747863][ T5744] bridge_slave_1: entered allmulticast mode [ 89.756124][ T5744] bridge_slave_1: entered promiscuous mode [ 89.787270][ T5744] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.804281][ T5744] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.837571][ T5744] team0: Port device team_slave_0 added [ 89.845484][ T5744] team0: Port device team_slave_1 added [ 89.875018][ T5744] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.882901][ T5744] 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. [ 89.910920][ T5744] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.924397][ T5744] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.932105][ T5744] 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. [ 89.960805][ T5744] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 90.007367][ T5744] hsr_slave_0: entered promiscuous mode [ 90.014288][ T5744] hsr_slave_1: entered promiscuous mode [ 90.021422][ T5744] debugfs: 'hsr0' already exists in 'hsr' [ 90.027411][ T5744] Cannot create hsr debugfs directory [ 90.919502][ T1100] bridge_slave_1: left allmulticast mode [ 90.926632][ T1100] bridge_slave_1: left promiscuous mode [ 90.934285][ T1100] bridge0: port 2(bridge_slave_1) entered disabled state [ 90.947308][ T1100] bridge_slave_0: left allmulticast mode [ 90.953780][ T1100] bridge_slave_0: left promiscuous mode [ 90.960455][ T1100] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.082737][ T1100] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 91.093697][ T1100] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 91.103823][ T1100] bond0 (unregistering): Released all slaves [ 91.226430][ T1100] hsr_slave_0: left promiscuous mode [ 91.232998][ T1100] hsr_slave_1: left promiscuous mode [ 91.240050][ T1100] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 91.248123][ T1100] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 91.257309][ T1100] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 91.267710][ T1100] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 91.287644][ T1100] veth1_macvtap: left promiscuous mode [ 91.295125][ T1100] veth0_macvtap: left promiscuous mode [ 91.301771][ T1100] veth1_vlan: left promiscuous mode [ 91.307498][ T1100] veth0_vlan: left promiscuous mode [ 91.314094][ T50] Bluetooth: hci0: command tx timeout [ 91.616568][ T1100] team0 (unregistering): Port device team_slave_1 removed [ 91.643130][ T1100] team0 (unregistering): Port device team_slave_0 removed [ 91.758723][ T5273] 8021q: adding VLAN 0 to HW filter on device eth1 [ 92.106616][ T5744] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 92.118922][ T185] cfg80211: failed to load regulatory.db [ 92.124364][ T5744] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 92.141874][ T5744] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 92.157584][ T5744] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 92.170617][ T5744] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 92.186735][ T5744] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 92.195494][ T5744] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.215069][ T5744] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 92.623777][ T5744] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.754669][ T5744] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.792790][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.800189][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.836170][ T14] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.843854][ T14] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.360118][ T5744] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.388969][ T50] Bluetooth: hci0: command tx timeout [ 93.427983][ T5744] veth0_vlan: entered promiscuous mode [ 93.446537][ T5744] veth1_vlan: entered promiscuous mode [ 93.491302][ T5744] veth0_macvtap: entered promiscuous mode [ 93.502621][ T5744] veth1_macvtap: entered promiscuous mode [ 93.531400][ T5744] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 93.551809][ T5744] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 93.573088][ T14] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.582769][ T14] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.594237][ T14] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.604867][ T14] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.671331][ T62] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.681389][ T62] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.708031][ T14] wlan1: Created IBSS using preconfigured 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) [ 93.717755][ T14] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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-build2135292455=/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/cc4M598x.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