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 '10.128.0.10' (ED25519) to the list of known hosts. 2026/01/16 14:10:52 parsed 1 programs [ 44.294122][ T5814] cgroup: Unknown subsys name 'net' [ 44.398859][ T5814] cgroup: Unknown subsys name 'cpuset' [ 44.405854][ T5814] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 53.013278][ T5814] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 54.500294][ T5823] 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. [ 54.608994][ T5828] chnl_net:caif_netlink_parms(): no params data found [ 54.628582][ T5828] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.636082][ T5828] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.643353][ T5828] bridge_slave_0: entered allmulticast mode [ 54.649598][ T5828] bridge_slave_0: entered promiscuous mode [ 54.656058][ T5828] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.663386][ T5828] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.670684][ T5828] bridge_slave_1: entered allmulticast mode [ 54.676839][ T5828] bridge_slave_1: entered promiscuous mode [ 54.689143][ T5828] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.699215][ T5828] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.712955][ T5828] team0: Port device team_slave_0 added [ 54.719167][ T5828] team0: Port device team_slave_1 added [ 54.729336][ T5828] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.736293][ T5828] 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. [ 54.763030][ T5828] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.774111][ T5828] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.781299][ T5828] 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. [ 54.807205][ T5828] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.824808][ T5828] hsr_slave_0: entered promiscuous mode [ 54.830630][ T5828] hsr_slave_1: entered promiscuous mode [ 54.860130][ T5828] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.867897][ T5828] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.875407][ T5828] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.883438][ T5828] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.895706][ T5828] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.903087][ T5828] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.910540][ T5828] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.917805][ T5828] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.935223][ T5828] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.944496][ T1097] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.952080][ T1097] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.961923][ T5828] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.970290][ T31] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.978091][ T31] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.987218][ T1097] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.994500][ T1097] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.039547][ T5828] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.054546][ T5828] veth0_vlan: entered promiscuous mode [ 55.061919][ T5828] veth1_vlan: entered promiscuous mode [ 55.076976][ T5828] veth0_macvtap: entered promiscuous mode [ 55.084154][ T5828] veth1_macvtap: entered promiscuous mode [ 55.093396][ T5828] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 55.102918][ T5828] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 55.112557][ T35] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.121687][ T35] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.131221][ T35] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.140240][ T35] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.174860][ T5135] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.182317][ T5135] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.190115][ T5135] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.197820][ T5135] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.205612][ T5135] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.213126][ T35] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.264430][ T35] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.280201][ T35] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.330018][ T35] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.689878][ T1097] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.699624][ T1097] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.710618][ T31] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.718824][ T31] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/01/16 14:11:06 executed programs: 0 [ 58.091653][ T35] bridge_slave_1: left allmulticast mode [ 58.102588][ T35] bridge_slave_1: left promiscuous mode [ 58.108508][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.116091][ T35] bridge_slave_0: left allmulticast mode [ 58.122201][ T35] bridge_slave_0: left promiscuous mode [ 58.127843][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.180190][ T35] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 58.189656][ T35] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 58.198993][ T35] bond0 (unregistering): Released all slaves [ 58.259317][ T35] hsr_slave_0: left promiscuous mode [ 58.265523][ T35] hsr_slave_1: left promiscuous mode [ 58.271603][ T35] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 58.279163][ T35] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 58.286699][ T35] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 58.295364][ T35] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 58.305538][ T35] veth1_macvtap: left promiscuous mode [ 58.311288][ T35] veth0_macvtap: left promiscuous mode [ 58.316792][ T35] veth1_vlan: left promiscuous mode [ 58.322304][ T35] veth0_vlan: left promiscuous mode [ 58.348816][ T35] team0 (unregistering): Port device team_slave_1 removed [ 58.357049][ T35] team0 (unregistering): Port device team_slave_0 removed [ 61.970096][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 61.977258][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 61.984564][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 61.992772][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 62.000321][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 62.037930][ T5992] chnl_net:caif_netlink_parms(): no params data found [ 62.060242][ T5992] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.067305][ T5992] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.074552][ T5992] bridge_slave_0: entered allmulticast mode [ 62.081059][ T5992] bridge_slave_0: entered promiscuous mode [ 62.087481][ T5992] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.094777][ T5992] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.102020][ T5992] bridge_slave_1: entered allmulticast mode [ 62.108293][ T5992] bridge_slave_1: entered promiscuous mode [ 62.119097][ T5992] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.128803][ T5992] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.142261][ T5992] team0: Port device team_slave_0 added [ 62.148546][ T5992] team0: Port device team_slave_1 added [ 62.158789][ T5992] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.165743][ T5992] 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. [ 62.192242][ T5992] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.203221][ T5992] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.210357][ T5992] 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. [ 62.236450][ T5992] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.253773][ T5992] hsr_slave_0: entered promiscuous mode [ 62.259633][ T5992] hsr_slave_1: entered promiscuous mode [ 62.393088][ T5992] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.401279][ T5992] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.409186][ T5992] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.417131][ T5992] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.443459][ T5992] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.450583][ T5992] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.457991][ T5992] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.465076][ T5992] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.490336][ T5992] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.501084][ T5992] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.510795][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.525081][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.536338][ T35] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.543466][ T35] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.553663][ T1097] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.560872][ T1097] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.620990][ T5992] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.639673][ T5992] veth0_vlan: entered promiscuous mode [ 62.648812][ T5992] veth1_vlan: entered promiscuous mode [ 62.662593][ T5992] veth0_macvtap: entered promiscuous mode [ 62.670638][ T5992] veth1_macvtap: entered promiscuous mode [ 62.681839][ T5992] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.692261][ T5992] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.701961][ T31] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.727953][ T31] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.736951][ T31] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.749749][ T35] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.763144][ T35] wlan0: 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) [ 62.770995][ T31] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.783728][ T58] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.797558][ T58] 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-build2226822454=/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='go1.24.4' 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/ccR9rODE.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): 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