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]:56766' (ED25519) to the list of known hosts. 2026/02/03 12:54:55 parsed 1 programs syzkaller login: [ 90.075216][ T5308] cgroup: Unknown subsys name 'net' [ 90.167582][ T5308] cgroup: Unknown subsys name 'cpuset' [ 90.174420][ T5308] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 92.030874][ T5308] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 96.977019][ T9] cfg80211: failed to load regulatory.db [ 98.541190][ T5332] 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. [ 99.373895][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 99.378010][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 99.383382][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 99.388829][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 99.392283][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 101.443411][ T47] Bluetooth: hci0: command tx timeout [ 103.899102][ T5349] chnl_net:caif_netlink_parms(): no params data found [ 104.775196][ T5349] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.779214][ T5349] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.809458][ T5349] bridge_slave_0: entered allmulticast mode [ 104.813830][ T5349] bridge_slave_0: entered promiscuous mode [ 104.947373][ T5349] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.950569][ T5349] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.973629][ T5349] bridge_slave_1: entered allmulticast mode [ 104.987887][ T5349] bridge_slave_1: entered promiscuous mode [ 105.096864][ T5349] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 105.113846][ T5349] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 105.121482][ T43] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.131649][ T43] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.270742][ T5349] team0: Port device team_slave_0 added [ 105.285344][ T5349] team0: Port device team_slave_1 added [ 105.304666][ T1042] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.322600][ T1042] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.398663][ T5349] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 105.401740][ T5349] 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. [ 105.453475][ T5349] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 105.484241][ T5349] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 105.502655][ T5349] 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. [ 105.543035][ T5349] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 105.684111][ T5349] hsr_slave_0: entered promiscuous mode [ 105.693518][ T5349] hsr_slave_1: entered promiscuous mode [ 106.302598][ T5349] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 106.351531][ T5349] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 106.381962][ T5349] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 106.396527][ T5349] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 106.675188][ T5349] 8021q: adding VLAN 0 to HW filter on device bond0 [ 106.733758][ T5349] 8021q: adding VLAN 0 to HW filter on device team0 [ 106.767457][ T1039] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.770753][ T1039] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.785997][ T1039] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.789220][ T1039] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.259903][ T5349] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.665928][ T5349] veth0_vlan: entered promiscuous mode [ 107.692888][ T5349] veth1_vlan: entered promiscuous mode [ 107.750721][ T5349] veth0_macvtap: entered promiscuous mode [ 107.767288][ T5349] veth1_macvtap: entered promiscuous mode [ 107.805539][ T5349] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 107.836761][ T5349] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 107.876435][ T1042] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.891263][ T1042] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.903943][ T1042] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.907877][ T1042] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/02/03 12:55:16 executed programs: 0 [ 108.271102][ T4666] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 108.276793][ T4666] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 108.280420][ T4666] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 108.284667][ T4666] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 108.288075][ T4666] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 108.794656][ T5435] chnl_net:caif_netlink_parms(): no params data found [ 108.930908][ T5435] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.934954][ T5435] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.938132][ T5435] bridge_slave_0: entered allmulticast mode [ 108.941781][ T5435] bridge_slave_0: entered promiscuous mode [ 108.947149][ T5435] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.985787][ T5435] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.991679][ T5435] bridge_slave_1: entered allmulticast mode [ 108.996891][ T5435] bridge_slave_1: entered promiscuous mode [ 109.029073][ T5435] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 109.034812][ T5435] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 109.093959][ T5435] team0: Port device team_slave_0 added [ 109.098309][ T5435] team0: Port device team_slave_1 added [ 109.150917][ T5435] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 109.163594][ T5435] 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. [ 109.183236][ T5435] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 109.203329][ T5435] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 109.206361][ T5435] 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. [ 109.230359][ T5435] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 109.297261][ T5435] hsr_slave_0: entered promiscuous mode [ 109.313069][ T5435] hsr_slave_1: entered promiscuous mode [ 109.316302][ T5435] debugfs: 'hsr0' already exists in 'hsr' [ 109.318656][ T5435] Cannot create hsr debugfs directory [ 109.588942][ T5435] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 109.607550][ T5435] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 109.623818][ T5435] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 109.633922][ T5435] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 109.685568][ T5435] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.688872][ T5435] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.692925][ T5435] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.696057][ T5435] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.864495][ T5435] 8021q: adding VLAN 0 to HW filter on device bond0 [ 109.924296][ T1093] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.928263][ T1093] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.965288][ T5435] 8021q: adding VLAN 0 to HW filter on device team0 [ 109.984231][ T1093] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.987511][ T1093] bridge0: port 1(bridge_slave_0) entered forwarding state [ 110.016226][ T1039] bridge0: port 2(bridge_slave_1) entered blocking state [ 110.019516][ T1039] bridge0: port 2(bridge_slave_1) entered forwarding state [ 110.407145][ T4666] Bluetooth: hci0: command tx timeout [ 110.443504][ T5435] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 110.501666][ T5435] veth0_vlan: entered promiscuous mode [ 110.517721][ T5435] veth1_vlan: entered promiscuous mode [ 110.556453][ T5435] veth0_macvtap: entered promiscuous mode [ 110.578590][ T5435] veth1_macvtap: entered promiscuous mode [ 110.599695][ T5435] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 110.617926][ T5435] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 110.647075][ T1042] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.664658][ T1042] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.668570][ T1042] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.672493][ T1042] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.831080][ T1039] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 110.853444][ T1039] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 110.892038][ T1039] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 110.896213][ T1039] 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) [ 111.250708][ T43] netdevsim netdevsim4 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.394562][ T43] netdevsim netdevsim4 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.460857][ T43] netdevsim netdevsim4 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.514433][ T43] netdevsim netdevsim4 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.704182][ T43] bridge_slave_1: left allmulticast mode [ 111.706827][ T43] bridge_slave_1: left promiscuous mode [ 111.710058][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.726316][ T43] bridge_slave_0: left allmulticast mode [ 111.728691][ T43] bridge_slave_0: left promiscuous mode [ 111.731349][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.098777][ T43] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 112.113744][ T43] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 112.118629][ T43] bond0 (unregistering): Released all slaves [ 112.252419][ T43] hsr_slave_0: left promiscuous mode [ 112.293041][ T43] hsr_slave_1: left promiscuous mode [ 112.297124][ T43] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 112.300520][ T43] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 112.326511][ T43] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 112.330128][ T43] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 112.376236][ T43] veth1_macvtap: left promiscuous mode [ 112.378904][ T43] veth0_macvtap: left promiscuous mode [ 112.381371][ T43] veth1_vlan: left promiscuous mode [ 112.395618][ T43] veth0_vlan: left promiscuous mode [ 113.098385][ T43] team0 (unregistering): Port device team_slave_1 removed [ 113.127911][ T43] team0 (unregistering): Port device team_slave_0 removed [ 113.705480][ T43] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 113.771022][ T43] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 113.824221][ T43] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 113.886059][ T43] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 114.063119][ T43] bridge_slave_1: left allmulticast mode [ 114.065653][ T43] bridge_slave_1: left promiscuous mode [ 114.068158][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.074409][ T43] bridge_slave_0: left allmulticast mode [ 114.077032][ T43] bridge_slave_0: left promiscuous mode [ 114.079696][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.344447][ T43] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 114.351908][ T43] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 114.357911][ T43] bond0 (unregistering): Released all slaves [ 114.924889][ T43] hsr_slave_0: left promiscuous mode [ 114.936156][ T43] hsr_slave_1: left promiscuous mode [ 114.943432][ T43] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 114.946683][ T43] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 114.960420][ T43] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 114.972230][ T43] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 114.987873][ T43] veth1_macvtap: left promiscuous mode [ 114.990308][ T43] veth0_macvtap: left promiscuous mode [ 114.993633][ T43] veth1_vlan: left promiscuous mode [ 114.995924][ T43] veth0_vlan: left promiscuous mode [ 115.333794][ T43] team0 (unregistering): Port device team_slave_1 removed [ 115.359687][ T43] 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-build3364455936=/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/cclsbWSW.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