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]:6982' (ED25519) to the list of known hosts. 2026/01/10 05:26:05 parsed 1 programs syzkaller login: [ 88.660381][ T5321] cgroup: Unknown subsys name 'net' [ 88.730936][ T5321] cgroup: Unknown subsys name 'cpuset' [ 88.738070][ T5321] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 90.389277][ T5321] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 90.945306][ T79] ODEBUG: Out of memory. ODEBUG disabled [ 94.306422][ T43] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.315750][ T43] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.364244][ T43] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.368226][ T43] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.448035][ T5337] 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. [ 96.948010][ T787] cfg80211: failed to load regulatory.db [ 98.040335][ T4680] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.044447][ T4680] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.048146][ T4680] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.051891][ T4680] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.055396][ T4680] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 99.886221][ T5407] chnl_net:caif_netlink_parms(): no params data found [ 99.963640][ T5407] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.967803][ T5407] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.971053][ T5407] bridge_slave_0: entered allmulticast mode [ 99.974907][ T5407] bridge_slave_0: entered promiscuous mode [ 99.981017][ T5407] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.984294][ T5407] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.987383][ T5407] bridge_slave_1: entered allmulticast mode [ 99.991927][ T5407] bridge_slave_1: entered promiscuous mode [ 100.037673][ T5407] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.044120][ T5407] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.070083][ T5407] team0: Port device team_slave_0 added [ 100.074499][ T5407] team0: Port device team_slave_1 added [ 100.095669][ T5407] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.099172][ T5407] 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. [ 100.110371][ T5407] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.116561][ T5407] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.119988][ T5407] 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. [ 100.130972][ T5407] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.165918][ T5407] hsr_slave_0: entered promiscuous mode [ 100.169461][ T5407] hsr_slave_1: entered promiscuous mode [ 100.315811][ T5407] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 100.324921][ T5407] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 100.330720][ T5407] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 100.336973][ T5407] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 100.362274][ T5407] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.365649][ T5407] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.369358][ T5407] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.372389][ T5407] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.427117][ T5407] 8021q: adding VLAN 0 to HW filter on device bond0 [ 100.440309][ T3561] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.444962][ T3561] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.456582][ T5407] 8021q: adding VLAN 0 to HW filter on device team0 [ 100.466148][ T3561] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.469464][ T3561] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.480171][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.483267][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.647317][ T5407] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 100.686210][ T5407] veth0_vlan: entered promiscuous mode [ 100.694729][ T5407] veth1_vlan: entered promiscuous mode [ 100.719006][ T5407] veth0_macvtap: entered promiscuous mode [ 100.724362][ T5407] veth1_macvtap: entered promiscuous mode [ 100.740062][ T5407] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 100.750926][ T5407] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 100.762421][ T3561] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.772591][ T3561] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.785459][ T3561] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.810129][ T3561] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.977023][ T3561] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.025831][ T3561] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.048147][ T3561] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.089884][ T3561] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/01/10 05:26:20 executed programs: 0 [ 101.534048][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 101.538526][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 101.541872][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 101.545428][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 101.549684][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 101.705555][ T5433] chnl_net:caif_netlink_parms(): no params data found [ 101.791932][ T5433] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.795329][ T5433] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.799130][ T5433] bridge_slave_0: entered allmulticast mode [ 101.803003][ T5433] bridge_slave_0: entered promiscuous mode [ 101.807344][ T5433] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.812076][ T5433] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.815355][ T5433] bridge_slave_1: entered allmulticast mode [ 101.819972][ T5433] bridge_slave_1: entered promiscuous mode [ 101.847258][ T5433] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 101.854125][ T5433] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 101.880484][ T5433] team0: Port device team_slave_0 added [ 101.885201][ T5433] team0: Port device team_slave_1 added [ 101.911516][ T5433] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 101.914739][ T5433] 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. [ 101.927095][ T5433] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 101.933924][ T5433] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 101.937083][ T5433] 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. [ 101.949759][ T5433] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.990043][ T5433] hsr_slave_0: entered promiscuous mode [ 101.993351][ T5433] hsr_slave_1: entered promiscuous mode [ 101.996581][ T5433] debugfs: 'hsr0' already exists in 'hsr' [ 101.999599][ T5433] Cannot create hsr debugfs directory [ 103.569737][ T47] Bluetooth: hci0: command tx timeout [ 103.652085][ T3561] bridge_slave_1: left allmulticast mode [ 103.654816][ T3561] bridge_slave_1: left promiscuous mode [ 103.669147][ T3561] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.689227][ T3561] bridge_slave_0: left allmulticast mode [ 103.692384][ T3561] bridge_slave_0: left promiscuous mode [ 103.695688][ T3561] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.049900][ T3561] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 104.056025][ T3561] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 104.061840][ T3561] bond0 (unregistering): Released all slaves [ 104.180098][ T3561] hsr_slave_0: left promiscuous mode [ 104.187373][ T3561] hsr_slave_1: left promiscuous mode [ 104.195465][ T3561] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 104.207854][ T3561] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 104.212224][ T3561] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 104.215519][ T3561] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 104.240623][ T3561] veth1_macvtap: left promiscuous mode [ 104.243491][ T3561] veth0_macvtap: left promiscuous mode [ 104.246013][ T3561] veth1_vlan: left promiscuous mode [ 104.267782][ T3561] veth0_vlan: left promiscuous mode [ 104.682520][ T3561] team0 (unregistering): Port device team_slave_1 removed [ 104.713974][ T3561] team0 (unregistering): Port device team_slave_0 removed [ 105.176135][ T5433] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 105.194422][ T5433] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 105.211646][ T5433] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 105.229614][ T5433] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 105.447396][ T5433] 8021q: adding VLAN 0 to HW filter on device bond0 [ 105.475000][ T5433] 8021q: adding VLAN 0 to HW filter on device team0 [ 105.493813][ T948] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.497089][ T948] bridge0: port 1(bridge_slave_0) entered forwarding state [ 105.515460][ T948] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.519145][ T948] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.648557][ T47] Bluetooth: hci0: command tx timeout [ 105.825939][ T5433] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 105.862589][ T5433] veth0_vlan: entered promiscuous mode [ 105.871898][ T5433] veth1_vlan: entered promiscuous mode [ 105.892839][ T5433] veth0_macvtap: entered promiscuous mode [ 105.898608][ T5433] veth1_macvtap: entered promiscuous mode [ 105.913050][ T5433] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.922731][ T5433] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.931555][ T43] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.939357][ T43] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.943061][ T43] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.946926][ T43] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 106.012319][ T43] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.015583][ T43] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.050359][ T948] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.053523][ T948] 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) [ 107.528781][ T3779] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.798414][ T3779] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.097825][ T3779] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.129560][ T3779] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.253386][ T3779] bridge_slave_1: left allmulticast mode [ 109.255856][ T3779] bridge_slave_1: left promiscuous mode [ 109.268093][ T3779] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.273653][ T3779] bridge_slave_0: left allmulticast mode [ 109.276218][ T3779] bridge_slave_0: left promiscuous mode [ 109.289068][ T3779] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.628230][ T3779] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 109.634279][ T3779] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 109.639529][ T3779] bond0 (unregistering): Released all slaves [ 109.853201][ T3779] hsr_slave_0: left promiscuous mode [ 109.860507][ T3779] hsr_slave_1: left promiscuous mode [ 109.868152][ T3779] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 109.872115][ T3779] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 109.886204][ T3779] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 109.909891][ T3779] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 109.921146][ T3779] veth1_macvtap: left promiscuous mode [ 109.923867][ T3779] veth0_macvtap: left promiscuous mode [ 109.926270][ T3779] veth1_vlan: left promiscuous mode [ 109.946145][ T3779] veth0_vlan: left promiscuous mode [ 110.248007][ T3779] team0 (unregistering): Port device team_slave_1 removed [ 110.272502][ T3779] 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-build812612123=/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/ccSLz8eE.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