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 '10.128.1.163' (ED25519) to the list of known hosts. 2026/05/15 17:58:49 parsed 1 programs syzkaller login: [ 89.631795][ T5629] cgroup: Unknown subsys name 'net' [ 89.739786][ T5629] cgroup: Unknown subsys name 'cpuset' [ 89.749651][ T5629] cgroup: Unknown subsys name 'rlimit' [ 89.757795][ T5629] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 91.160210][ T5629] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 96.085810][ T5686] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 96.094163][ T5686] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 96.103709][ T5686] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 96.114797][ T5686] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 96.128265][ T5686] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.312632][ T5703] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.321758][ T5703] bridge0: port 1(bridge_slave_0) entered disabled state [ 97.331062][ T5703] bridge_slave_0: entered allmulticast mode [ 97.339312][ T5703] bridge_slave_0: entered promiscuous mode [ 97.350320][ T5703] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.359695][ T5703] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.367910][ T5703] bridge_slave_1: entered allmulticast mode [ 97.376676][ T5703] bridge_slave_1: entered promiscuous mode [ 97.409112][ T5703] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 97.424001][ T5703] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 97.454232][ T5703] team0: Port device team_slave_0 added [ 97.463877][ T5703] team0: Port device team_slave_1 added [ 97.482229][ T1233] cfg80211: failed to load regulatory.db [ 97.507273][ T5703] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 97.514705][ T5703] 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. [ 97.542541][ T5703] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 97.556682][ T5703] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 97.565391][ T5703] 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. [ 97.593824][ T5703] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 97.635544][ T5703] hsr_slave_0: entered promiscuous mode [ 97.643803][ T5703] hsr_slave_1: entered promiscuous mode [ 97.790630][ T5703] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 97.804462][ T5703] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 97.814538][ T5703] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 97.824401][ T5703] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 97.833182][ T5703] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 97.844153][ T5703] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 97.853320][ T5703] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 97.865240][ T5703] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 97.897458][ T5703] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.905854][ T5703] bridge0: port 2(bridge_slave_1) entered forwarding state [ 97.916240][ T5703] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.925092][ T5703] bridge0: port 1(bridge_slave_0) entered forwarding state [ 97.996313][ T5703] 8021q: adding VLAN 0 to HW filter on device bond0 [ 98.019282][ T135] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.029898][ T135] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.051151][ T5703] 8021q: adding VLAN 0 to HW filter on device team0 [ 98.070514][ T135] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.079814][ T135] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.094702][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.102662][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.422301][ T5703] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 98.482113][ T5703] veth0_vlan: entered promiscuous mode [ 98.494453][ T5703] veth1_vlan: entered promiscuous mode [ 98.528015][ T5703] veth0_macvtap: entered promiscuous mode [ 98.539495][ T5703] veth1_macvtap: entered promiscuous mode [ 98.560727][ T5703] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 98.579883][ T5703] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 98.596827][ T135] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.610010][ T135] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.620803][ T135] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.632290][ T135] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.769112][ T76] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 98.879257][ T76] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 98.909444][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.924211][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.957460][ T76] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 98.997737][ T146] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 99.006360][ T146] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 99.033369][ T76] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/05/15 17:59:02 executed programs: 0 [ 99.915820][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 99.928270][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 99.940390][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 99.950576][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 99.964306][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.409892][ T5754] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.419401][ T5754] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.430518][ T5754] bridge_slave_0: entered allmulticast mode [ 100.440897][ T5754] bridge_slave_0: entered promiscuous mode [ 100.454819][ T5754] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.466395][ T5754] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.474714][ T5754] bridge_slave_1: entered allmulticast mode [ 100.483601][ T5754] bridge_slave_1: entered promiscuous mode [ 100.517410][ T5754] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.530866][ T5754] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.568008][ T5754] team0: Port device team_slave_0 added [ 100.576602][ T5754] team0: Port device team_slave_1 added [ 100.610081][ T5754] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.618423][ T5754] 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. [ 100.649259][ T5754] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.663244][ T5754] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.672031][ T5754] 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. [ 100.704033][ T5754] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.762764][ T5754] hsr_slave_0: entered promiscuous mode [ 100.771095][ T5754] hsr_slave_1: entered promiscuous mode [ 100.778940][ T5754] debugfs: 'hsr0' already exists in 'hsr' [ 100.786348][ T5754] Cannot create hsr debugfs directory [ 101.512233][ T76] bridge_slave_1: left allmulticast mode [ 101.518480][ T76] bridge_slave_1: left promiscuous mode [ 101.526451][ T76] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.541717][ T76] bridge_slave_0: left allmulticast mode [ 101.551912][ T76] bridge_slave_0: left promiscuous mode [ 101.559401][ T76] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.809083][ T76] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 101.822628][ T76] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 101.844439][ T76] bond0 (unregistering): Released all slaves [ 101.967447][ T76] hsr_slave_0: left promiscuous mode [ 101.980304][ T76] hsr_slave_1: left promiscuous mode [ 101.987676][ T76] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 101.996231][ T76] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 102.004858][ T76] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 102.013133][ T76] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 102.027326][ T76] veth1_macvtap: left promiscuous mode [ 102.034149][ T76] veth0_macvtap: left promiscuous mode [ 102.041768][ T50] Bluetooth: hci0: command tx timeout [ 102.041941][ T76] veth1_vlan: left promiscuous mode [ 102.054230][ T76] veth0_vlan: left promiscuous mode [ 102.227605][ T76] team0 (unregistering): Port device team_slave_1 removed [ 102.242342][ T76] team0 (unregistering): Port device team_slave_0 removed [ 102.347678][ T5280] 8021q: adding VLAN 0 to HW filter on device eth1 [ 102.737314][ T5754] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 102.757712][ T5754] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 102.768474][ T5754] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 102.784621][ T5754] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 102.794174][ T5754] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 102.815478][ T5754] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 102.992304][ T5754] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 103.003867][ T5754] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 103.217119][ T5754] 8021q: adding VLAN 0 to HW filter on device bond0 [ 103.251199][ T5754] 8021q: adding VLAN 0 to HW filter on device team0 [ 103.294870][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.302456][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.328677][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.336748][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.970513][ T5754] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 104.046494][ T5754] veth0_vlan: entered promiscuous mode [ 104.065223][ T5754] veth1_vlan: entered promiscuous mode [ 104.110773][ T5754] veth0_macvtap: entered promiscuous mode [ 104.119769][ T50] Bluetooth: hci0: command tx timeout [ 104.125056][ T5754] veth1_macvtap: entered promiscuous mode [ 104.154627][ T5754] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 104.171595][ T5754] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 104.198724][ T1027] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.219862][ T1027] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.243121][ T1027] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.267695][ T1027] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.319690][ T1027] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.328469][ T1027] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 104.358270][ T13] 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) [ 104.367681][ T13] 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-build1408062626=/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 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/ccsiX592.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