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 '10.128.1.186' (ED25519) to the list of known hosts. 2026/07/15 11:36:28 parsed 1 programs [ 81.625140][ T5620] cgroup: Unknown subsys name 'net' [ 81.726398][ T5620] cgroup: Unknown subsys name 'cpuset' [ 81.736216][ T5620] cgroup: Unknown subsys name 'rlimit' [ 81.745242][ T5620] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 83.155068][ T5620] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 87.038160][ T3346] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.046255][ T3346] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.104258][ T57] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.112419][ T57] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.799674][ T5675] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 87.810929][ T5675] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 87.824685][ T5675] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 87.836887][ T5675] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 87.845664][ T5675] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.443674][ T5701] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.453340][ T5701] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.460627][ T5701] bridge_slave_0: entered allmulticast mode [ 89.468163][ T5701] bridge_slave_0: entered promiscuous mode [ 89.479296][ T5701] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.486697][ T5701] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.494931][ T5701] bridge_slave_1: entered allmulticast mode [ 89.502754][ T5701] bridge_slave_1: entered promiscuous mode [ 89.534108][ T5701] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.546368][ T5701] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.576219][ T5701] team0: Port device team_slave_0 added [ 89.584179][ T5701] team0: Port device team_slave_1 added [ 89.609930][ T5701] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.618153][ T5701] 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. [ 89.645276][ T5701] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.659838][ T5701] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.666988][ T5701] 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. [ 89.693096][ T5701] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 89.733193][ T5701] hsr_slave_0: entered promiscuous mode [ 89.739825][ T5701] hsr_slave_1: entered promiscuous mode [ 89.878358][ T5701] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 89.893303][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 89.902390][ T5701] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 89.912183][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 89.923075][ T5701] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 89.936362][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 89.945805][ T5701] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 89.958719][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 89.990016][ T5701] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.998191][ T5701] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.006361][ T5701] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.013580][ T5701] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.073872][ T5701] 8021q: adding VLAN 0 to HW filter on device bond0 [ 90.096599][ T3346] bridge0: port 1(bridge_slave_0) entered disabled state [ 90.106128][ T3346] bridge0: port 2(bridge_slave_1) entered disabled state [ 90.123692][ T5701] 8021q: adding VLAN 0 to HW filter on device team0 [ 90.137577][ T3346] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.145401][ T3346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.159761][ T661] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.167205][ T661] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.469758][ T5701] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 90.520434][ T5701] veth0_vlan: entered promiscuous mode [ 90.536309][ T5701] veth1_vlan: entered promiscuous mode [ 90.570402][ T5701] veth0_macvtap: entered promiscuous mode [ 90.580766][ T5701] veth1_macvtap: entered promiscuous mode [ 90.600733][ T5701] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 90.618112][ T5701] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 90.634922][ T59] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.645633][ T59] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.666917][ T59] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.676749][ T59] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.831631][ T661] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.899580][ T661] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.952404][ T661] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.042421][ T661] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/07/15 11:36:41 executed programs: 0 [ 91.368496][ T4928] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 91.381478][ T4928] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 91.392315][ T4928] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 91.400888][ T4928] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 91.409818][ T4928] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 91.840710][ T5743] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.849068][ T5743] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.857517][ T5743] bridge_slave_0: entered allmulticast mode [ 91.866074][ T5743] bridge_slave_0: entered promiscuous mode [ 91.875384][ T5743] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.883486][ T5743] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.890806][ T5743] bridge_slave_1: entered allmulticast mode [ 91.898574][ T5743] bridge_slave_1: entered promiscuous mode [ 91.934619][ T5743] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 91.946905][ T5743] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 91.980565][ T5743] team0: Port device team_slave_0 added [ 91.989695][ T5743] team0: Port device team_slave_1 added [ 92.018446][ T5743] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 92.025703][ T5743] 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. [ 92.052357][ T5743] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 92.066178][ T5743] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 92.073378][ T5743] 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. [ 92.099897][ T5743] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 92.155027][ T5743] hsr_slave_0: entered promiscuous mode [ 92.161451][ T5743] hsr_slave_1: entered promiscuous mode [ 92.169816][ T5743] debugfs: 'hsr0' already exists in 'hsr' [ 92.176043][ T5743] Cannot create hsr debugfs directory [ 92.340072][ T29] cfg80211: failed to load regulatory.db [ 92.828569][ T661] bridge_slave_1: left allmulticast mode [ 92.834780][ T661] bridge_slave_1: left promiscuous mode [ 92.842735][ T661] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.856416][ T661] bridge_slave_0: left allmulticast mode [ 92.863265][ T661] bridge_slave_0: left promiscuous mode [ 92.869977][ T661] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.985713][ T661] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 93.002892][ T661] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 93.012983][ T661] bond0 (unregistering): Released all slaves [ 93.148520][ T661] hsr_slave_0: left promiscuous mode [ 93.154945][ T661] hsr_slave_1: left promiscuous mode [ 93.161232][ T661] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 93.170551][ T661] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 93.179586][ T661] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 93.190506][ T661] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 93.206963][ T661] veth1_macvtap: left promiscuous mode [ 93.214496][ T661] veth0_macvtap: left promiscuous mode [ 93.220512][ T661] veth1_vlan: left promiscuous mode [ 93.226639][ T661] veth0_vlan: left promiscuous mode [ 93.453360][ T4928] Bluetooth: hci0: command tx timeout [ 93.523495][ T661] team0 (unregistering): Port device team_slave_1 removed [ 93.544199][ T661] team0 (unregistering): Port device team_slave_0 removed [ 93.643109][ T5272] 8021q: adding VLAN 0 to HW filter on device eth1 [ 94.036272][ T5743] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.051096][ T5743] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 94.062341][ T5743] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.075494][ T5743] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 94.083765][ T5743] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.106237][ T5743] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 94.157616][ T5743] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.170221][ T5743] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 94.324262][ T5743] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.356950][ T5743] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.370815][ T57] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.378430][ T57] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.409569][ T57] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.417030][ T57] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.941222][ T5743] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 95.009463][ T5743] veth0_vlan: entered promiscuous mode [ 95.030671][ T5743] veth1_vlan: entered promiscuous mode [ 95.080482][ T5743] veth0_macvtap: entered promiscuous mode [ 95.096773][ T5743] veth1_macvtap: entered promiscuous mode [ 95.123612][ T5743] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 95.148983][ T5743] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 95.169626][ T3346] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.198415][ T3346] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.234174][ T3346] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.253211][ T3346] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.331004][ T3346] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.361377][ T3346] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.448129][ T661] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.470999][ T661] 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) [ 95.536079][ T4928] Bluetooth: hci0: command tx timeout 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-build1991572601=/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/cc1NV4YP.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