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 '10.128.1.184' (ED25519) to the list of known hosts. 2026/04/10 18:41:16 parsed 1 programs [ 79.531812][ T5840] cgroup: Unknown subsys name 'net' [ 79.598011][ T5840] cgroup: Unknown subsys name 'cpuset' [ 79.607208][ T5840] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 80.968849][ T5840] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 84.100096][ T5856] 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. [ 84.603423][ T5879] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 84.614492][ T5879] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 84.625450][ T5879] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 84.635978][ T5879] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 84.645044][ T5879] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 84.698025][ T5857] chnl_net:caif_netlink_parms(): no params data found [ 85.044222][ T5857] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.053251][ T5857] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.062988][ T5857] bridge_slave_0: entered allmulticast mode [ 85.071732][ T5857] bridge_slave_0: entered promiscuous mode [ 85.121634][ T5857] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.129131][ T5857] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.138416][ T5857] bridge_slave_1: entered allmulticast mode [ 85.149472][ T5857] bridge_slave_1: entered promiscuous mode [ 85.233024][ T5857] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.401685][ T5857] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.490481][ T5857] team0: Port device team_slave_0 added [ 85.521836][ T5857] team0: Port device team_slave_1 added [ 85.590514][ T5857] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.597843][ T5857] 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. [ 85.625458][ T5857] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.640252][ T5857] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.647762][ T5857] 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. [ 85.675284][ T5857] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.826173][ T5857] hsr_slave_0: entered promiscuous mode [ 85.833414][ T5857] hsr_slave_1: entered promiscuous mode [ 85.851506][ T1169] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.868502][ T1169] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.040593][ T756] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.058857][ T756] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.001951][ T5857] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 87.021153][ T5857] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 87.029873][ T5857] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 87.043216][ T5857] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 87.116731][ T5857] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 87.135364][ T5857] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 87.151894][ T5857] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 87.168565][ T5857] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 87.801095][ T5857] 8021q: adding VLAN 0 to HW filter on device bond0 [ 87.861744][ T5857] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.884270][ T35] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.896102][ T35] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.936554][ T756] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.946204][ T756] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.167806][ T5857] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.213006][ T5857] veth0_vlan: entered promiscuous mode [ 88.228230][ T5857] veth1_vlan: entered promiscuous mode [ 88.256054][ T5857] veth0_macvtap: entered promiscuous mode [ 88.266756][ T5857] veth1_macvtap: entered promiscuous mode [ 88.285084][ T5857] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.303176][ T5857] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.323688][ T756] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.339472][ T756] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.357403][ T756] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.369246][ T756] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/10 18:41:27 executed programs: 0 [ 88.550586][ T5159] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 88.564765][ T5159] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 88.576245][ T5159] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 88.589922][ T5159] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 88.598613][ T5159] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 88.849826][ T5948] chnl_net:caif_netlink_parms(): no params data found [ 88.941072][ T5948] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.949876][ T5948] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.958497][ T5948] bridge_slave_0: entered allmulticast mode [ 88.967540][ T5948] bridge_slave_0: entered promiscuous mode [ 88.977504][ T5948] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.986175][ T5948] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.994349][ T5948] bridge_slave_1: entered allmulticast mode [ 89.002496][ T5948] bridge_slave_1: entered promiscuous mode [ 89.037981][ T5948] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.052139][ T5948] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.088538][ T5948] team0: Port device team_slave_0 added [ 89.097302][ T5948] team0: Port device team_slave_1 added [ 89.122954][ T5948] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.130771][ T5948] 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. [ 89.158422][ T5948] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.172864][ T5948] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.181356][ T5948] 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. [ 89.209581][ T5948] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 89.256319][ T5948] hsr_slave_0: entered promiscuous mode [ 89.262649][ T5948] hsr_slave_1: entered promiscuous mode [ 89.269052][ T5948] debugfs: 'hsr0' already exists in 'hsr' [ 89.275056][ T5948] Cannot create hsr debugfs directory [ 89.420900][ T5948] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 89.430538][ T5948] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 89.439464][ T5948] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 89.449053][ T5948] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 89.457883][ T5948] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 89.468465][ T5948] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 89.476933][ T5948] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 89.487884][ T5948] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 89.517779][ T5948] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.525808][ T5948] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.534536][ T5948] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.541946][ T5948] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.602529][ T5948] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.618931][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.628316][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.643827][ T5948] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.656683][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.663974][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.678246][ T35] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.685562][ T35] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.848136][ T5948] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 89.892276][ T5948] veth0_vlan: entered promiscuous mode [ 89.905078][ T5948] veth1_vlan: entered promiscuous mode [ 89.932561][ T5948] veth0_macvtap: entered promiscuous mode [ 89.941615][ T5948] veth1_macvtap: entered promiscuous mode [ 89.960348][ T5948] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 89.975523][ T5948] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 89.989410][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.000299][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.011292][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.021790][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.087520][ T756] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.097846][ T756] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 90.128210][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.136917][ 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) [ 90.663705][ T1107] netdevsim netdevsim3 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-build710274573=/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 d6526ea3e6 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/ccvzc3d5.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