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 '[localhost]:2260' (ED25519) to the list of known hosts. 2026/02/03 11:31:58 parsed 1 programs syzkaller login: [ 89.690308][ T5311] cgroup: Unknown subsys name 'net' [ 89.764506][ T5311] cgroup: Unknown subsys name 'cpuset' [ 89.770422][ T5311] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.652621][ T5311] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 97.176423][ T10] cfg80211: failed to load regulatory.db [ 97.773251][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.776594][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.788895][ T5334] 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. [ 97.976310][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.998356][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.764732][ T5367] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.769328][ T5367] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.773588][ T5367] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.777335][ T5367] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.781366][ T5367] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 101.845280][ T5333] chnl_net:caif_netlink_parms(): no params data found [ 102.832048][ T5333] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.835953][ T5333] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.838983][ T5333] bridge_slave_0: entered allmulticast mode [ 102.861652][ T5333] bridge_slave_0: entered promiscuous mode [ 102.881389][ T5333] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.884633][ T5333] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.888088][ T5333] bridge_slave_1: entered allmulticast mode [ 102.950655][ T5333] bridge_slave_1: entered promiscuous mode [ 103.112240][ T5333] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 103.149623][ T5333] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 103.743084][ T5333] team0: Port device team_slave_0 added [ 103.770781][ T5333] team0: Port device team_slave_1 added [ 103.872141][ T5333] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 103.881001][ T5333] 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. [ 103.940712][ T5333] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 103.976384][ T5333] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 103.989716][ T5333] 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. [ 104.044092][ T5333] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 104.199018][ T5333] hsr_slave_0: entered promiscuous mode [ 104.209264][ T5333] hsr_slave_1: entered promiscuous mode [ 104.704095][ T5333] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 104.731984][ T5333] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 104.738877][ T5333] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 104.755220][ T5333] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 104.886603][ T5333] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.921224][ T5333] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.935884][ T56] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.939251][ T56] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.973208][ T31] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.976552][ T31] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.478155][ T5333] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 105.718493][ T5333] veth0_vlan: entered promiscuous mode [ 105.743120][ T5333] veth1_vlan: entered promiscuous mode [ 105.792821][ T5333] veth0_macvtap: entered promiscuous mode [ 105.798532][ T5333] veth1_macvtap: entered promiscuous mode [ 105.832965][ T5333] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.839158][ T5333] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.870868][ T56] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.884056][ T56] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.887907][ T56] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.902829][ T56] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/02/03 11:32:17 executed programs: 0 [ 106.309603][ T4667] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 106.316556][ T4667] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 106.320120][ T4667] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 106.324300][ T4667] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 106.327767][ T4667] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 106.715872][ T5436] chnl_net:caif_netlink_parms(): no params data found [ 106.823733][ T5436] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.832064][ T5436] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.835593][ T5436] bridge_slave_0: entered allmulticast mode [ 106.851461][ T5436] bridge_slave_0: entered promiscuous mode [ 106.855822][ T5436] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.859118][ T5436] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.871085][ T5436] bridge_slave_1: entered allmulticast mode [ 106.874963][ T5436] bridge_slave_1: entered promiscuous mode [ 106.908748][ T5436] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 106.915036][ T5436] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 106.962484][ T5436] team0: Port device team_slave_0 added [ 106.969231][ T5436] team0: Port device team_slave_1 added [ 107.006334][ T5436] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 107.009322][ T5436] 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. [ 107.030981][ T5436] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 107.062906][ T5436] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 107.066004][ T5436] 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. [ 107.091261][ T5436] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 107.167864][ T5436] hsr_slave_0: entered promiscuous mode [ 107.181861][ T5436] hsr_slave_1: entered promiscuous mode [ 107.184947][ T5436] debugfs: 'hsr0' already exists in 'hsr' [ 107.187580][ T5436] Cannot create hsr debugfs directory [ 107.501302][ T5436] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 107.508345][ T5436] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 107.525051][ T5436] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 107.536573][ T5436] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 107.583862][ T5436] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.587103][ T5436] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.591865][ T5436] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.595287][ T5436] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.696237][ T5436] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.719191][ T5436] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.733682][ T172] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.738246][ T172] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.788555][ T172] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.791971][ T172] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.813979][ T172] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.817264][ T172] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.882746][ T5436] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 108.152026][ T5436] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 108.210383][ T5436] veth0_vlan: entered promiscuous mode [ 108.232259][ T5436] veth1_vlan: entered promiscuous mode [ 108.276555][ T5436] veth0_macvtap: entered promiscuous mode [ 108.297295][ T5436] veth1_macvtap: entered promiscuous mode [ 108.325334][ T5436] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 108.343111][ T5436] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 108.362880][ T5367] Bluetooth: hci0: command tx timeout [ 108.368213][ T12] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.374184][ T12] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.386365][ T12] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.401092][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.505184][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.508490][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.563525][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.567477][ T12] 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) [ 109.209033][ T172] netdevsim netdevsim4 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.363103][ T172] netdevsim netdevsim4 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.419916][ T172] netdevsim netdevsim4 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.492535][ T172] netdevsim netdevsim4 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.698008][ T172] bridge_slave_1: left allmulticast mode [ 109.711761][ T172] bridge_slave_1: left promiscuous mode [ 109.715094][ T172] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.731657][ T172] bridge_slave_0: left allmulticast mode [ 109.734292][ T172] bridge_slave_0: left promiscuous mode [ 109.737563][ T172] bridge0: port 1(bridge_slave_0) entered disabled state [ 110.297563][ T172] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 110.312490][ T172] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 110.322195][ T172] bond0 (unregistering): Released all slaves [ 110.456922][ T172] hsr_slave_0: left promiscuous mode [ 110.464807][ T172] hsr_slave_1: left promiscuous mode [ 110.475581][ T172] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 110.479202][ T172] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 110.521334][ T172] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 110.525204][ T172] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 110.577629][ T172] veth1_macvtap: left promiscuous mode [ 110.580652][ T172] veth0_macvtap: left promiscuous mode [ 110.583218][ T172] veth1_vlan: left promiscuous mode [ 110.585772][ T172] veth0_vlan: left promiscuous mode [ 111.123631][ T172] team0 (unregistering): Port device team_slave_1 removed [ 111.148693][ T172] team0 (unregistering): Port device team_slave_0 removed [ 111.671187][ T172] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.752001][ T172] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.819987][ T172] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.884055][ T172] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.049267][ T172] bridge_slave_1: left allmulticast mode [ 112.064159][ T172] bridge_slave_1: left promiscuous mode [ 112.067527][ T172] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.083289][ T172] bridge_slave_0: left allmulticast mode [ 112.085829][ T172] bridge_slave_0: left promiscuous mode [ 112.088383][ T172] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.352442][ T172] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 112.357863][ T172] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 112.364360][ T172] bond0 (unregistering): Released all slaves [ 112.817075][ T172] hsr_slave_0: left promiscuous mode [ 112.822483][ T172] hsr_slave_1: left promiscuous mode [ 112.828771][ T172] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 112.846993][ T172] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 112.861268][ T172] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 112.864551][ T172] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 112.884525][ T172] veth1_macvtap: left promiscuous mode [ 112.887137][ T172] veth0_macvtap: left promiscuous mode [ 112.889725][ T172] veth1_vlan: left promiscuous mode [ 112.908962][ T172] veth0_vlan: left promiscuous mode [ 113.288508][ T172] team0 (unregistering): Port device team_slave_1 removed [ 113.313868][ T172] team0 (unregistering): Port device team_slave_0 removed 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-build2706452042=/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 d1b870e1003b 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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" -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=\"d1b870e1003b52891d2196c1e2ee42fe905010ba\" /usr/bin/ld: /tmp/ccE34ucK.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