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 '10.128.1.101' (ED25519) to the list of known hosts. 2026/06/22 19:52:39 parsed 1 programs [ 72.540376][ T5634] cgroup: Unknown subsys name 'net' [ 72.605287][ T5634] cgroup: Unknown subsys name 'cpuset' [ 72.613390][ T5634] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 73.920111][ T5634] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 76.695898][ T5650] 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. [ 76.791555][ T5660] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 76.799325][ T5660] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 76.811096][ T5660] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 76.824235][ T5660] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 76.832010][ T5660] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 77.769976][ T149] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.786851][ T149] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.932139][ T149] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.952693][ T149] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.433863][ T5694] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.446523][ T5694] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.454411][ T5694] bridge_slave_0: entered allmulticast mode [ 78.465912][ T5694] bridge_slave_0: entered promiscuous mode [ 78.480594][ T5694] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.488237][ T5694] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.495965][ T5694] bridge_slave_1: entered allmulticast mode [ 78.503238][ T5694] bridge_slave_1: entered promiscuous mode [ 78.611414][ T5694] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.625760][ T5694] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.671689][ T5694] team0: Port device team_slave_0 added [ 78.682109][ T5694] team0: Port device team_slave_1 added [ 78.727790][ T5694] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.736802][ T5694] 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. [ 78.763952][ T5694] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.780876][ T5694] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.789189][ T5694] 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. [ 78.818451][ T5694] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.889268][ T5694] hsr_slave_0: entered promiscuous mode [ 78.896537][ T5694] hsr_slave_1: entered promiscuous mode [ 79.039396][ T5694] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.049390][ T5694] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 79.057227][ T5694] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.065777][ T5694] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 79.073791][ T5694] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.083914][ T5694] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 79.092112][ T5694] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.101153][ T5694] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 79.153285][ T5694] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.170269][ T5694] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.185916][ T1166] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.193152][ T1166] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.206449][ T1123] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.213649][ T1123] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.262325][ T5694] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.296359][ T5694] veth0_vlan: entered promiscuous mode [ 79.306570][ T5694] veth1_vlan: entered promiscuous mode [ 79.329842][ T5694] veth0_macvtap: entered promiscuous mode [ 79.338981][ T5694] veth1_macvtap: entered promiscuous mode [ 79.356958][ T5694] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.369503][ T5694] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.382348][ T1166] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.392083][ T1166] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.401763][ T1166] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.412349][ T1166] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/06/22 19:52:49 executed programs: 0 [ 79.497089][ T1123] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.512286][ T5663] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 79.521617][ T5663] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 79.530402][ T5663] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 79.538769][ T5663] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 79.547098][ T5663] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 79.548182][ T1123] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.609009][ T1123] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.666740][ T1123] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.755707][ T5742] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.763509][ T5742] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.771074][ T5742] bridge_slave_0: entered allmulticast mode [ 79.778242][ T5742] bridge_slave_0: entered promiscuous mode [ 79.786220][ T5742] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.793534][ T5742] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.800991][ T5742] bridge_slave_1: entered allmulticast mode [ 79.808242][ T5742] bridge_slave_1: entered promiscuous mode [ 79.833318][ T5742] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.845436][ T5742] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.870318][ T5742] team0: Port device team_slave_0 added [ 79.879155][ T5742] team0: Port device team_slave_1 added [ 79.899237][ T5742] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.907107][ T5742] 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. [ 79.941624][ T5742] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.955156][ T5742] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.962559][ T5742] 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. [ 79.989949][ T5742] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.025561][ T5742] hsr_slave_0: entered promiscuous mode [ 80.032082][ T5742] hsr_slave_1: entered promiscuous mode [ 80.038921][ T5742] debugfs: 'hsr0' already exists in 'hsr' [ 80.045171][ T5742] Cannot create hsr debugfs directory [ 81.582878][ T5663] Bluetooth: hci0: command tx timeout [ 82.440737][ T1123] bridge_slave_1: left allmulticast mode [ 82.446838][ T1123] bridge_slave_1: left promiscuous mode [ 82.452568][ T1123] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.461546][ T1123] bridge_slave_0: left allmulticast mode [ 82.467963][ T1123] bridge_slave_0: left promiscuous mode [ 82.474453][ T1123] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.538705][ T1123] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.550708][ T1123] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.562407][ T1123] bond0 (unregistering): Released all slaves [ 82.668128][ T1123] hsr_slave_0: left promiscuous mode [ 82.677577][ T1123] hsr_slave_1: left promiscuous mode [ 82.684000][ T1123] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.691577][ T1123] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.701356][ T1123] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.711921][ T1123] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.725254][ T1123] veth1_macvtap: left promiscuous mode [ 82.731058][ T1123] veth0_macvtap: left promiscuous mode [ 82.736941][ T1123] veth1_vlan: left promiscuous mode [ 82.742458][ T1123] veth0_vlan: left promiscuous mode [ 82.895683][ T1123] team0 (unregistering): Port device team_slave_1 removed [ 82.908769][ T1123] team0 (unregistering): Port device team_slave_0 removed [ 83.007542][ T5287] 8021q: adding VLAN 0 to HW filter on device eth1 [ 83.213934][ T5742] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.226678][ T5742] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 83.237880][ T5742] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.250899][ T5742] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 83.259994][ T5742] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.274252][ T5742] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 83.284386][ T5742] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.294433][ T5742] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 83.376932][ T5742] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.398178][ T5742] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.418830][ T1123] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.426254][ T1123] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.445574][ T1123] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.453092][ T1123] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.513881][ T5742] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.556335][ T5742] veth0_vlan: entered promiscuous mode [ 83.570102][ T5742] veth1_vlan: entered promiscuous mode [ 83.602240][ T5742] veth0_macvtap: entered promiscuous mode [ 83.611972][ T5742] veth1_macvtap: entered promiscuous mode [ 83.630642][ T5742] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.644813][ T5742] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.661326][ T1123] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.670859][ T5663] Bluetooth: hci0: command tx timeout [ 83.688102][ T1123] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.701904][ T1123] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.719475][ T1123] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.750358][ T1123] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.765010][ T1123] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.785786][ T1123] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.794752][ T1123] 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) 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-build1907908541=/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 d6526ea3e 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/ccIQiLKx.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