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 '10.128.1.159' (ED25519) to the list of known hosts. 2026/02/03 13:51:42 parsed 1 programs [ 90.600238][ T5822] cgroup: Unknown subsys name 'net' [ 90.757832][ T5822] cgroup: Unknown subsys name 'cpuset' [ 90.767123][ T5822] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.195474][ T975] cfg80211: failed to load regulatory.db [ 92.323477][ T5822] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 95.478533][ T5842] 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. [ 95.781116][ T3451] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.791657][ T3451] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.047240][ T3504] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.072497][ T3504] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.537959][ T5893] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.546341][ T5893] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.557662][ T5893] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 97.572101][ T5893] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 97.583517][ T5893] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 98.754369][ T5886] chnl_net:caif_netlink_parms(): no params data found [ 98.900445][ T5886] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.908375][ T5886] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.916709][ T5886] bridge_slave_0: entered allmulticast mode [ 98.924161][ T5886] bridge_slave_0: entered promiscuous mode [ 98.934038][ T5886] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.941205][ T5886] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.949401][ T5886] bridge_slave_1: entered allmulticast mode [ 98.956880][ T5886] bridge_slave_1: entered promiscuous mode [ 99.008378][ T5886] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.021246][ T5886] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.074123][ T5886] team0: Port device team_slave_0 added [ 99.082714][ T5886] team0: Port device team_slave_1 added [ 99.119002][ T5886] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.126094][ T5886] 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. [ 99.152246][ T5886] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.165005][ T5886] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.171934][ T5886] 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. [ 99.198914][ T5886] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.255484][ T5886] hsr_slave_0: entered promiscuous mode [ 99.261942][ T5886] hsr_slave_1: entered promiscuous mode [ 99.422502][ T5886] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 99.436324][ T5886] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 99.446852][ T5886] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 99.457734][ T5886] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 99.487583][ T5886] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.494767][ T5886] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.502445][ T5886] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.509618][ T5886] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.566517][ T5886] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.585091][ T37] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.595749][ T37] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.612930][ T5886] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.628848][ T37] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.636027][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.650521][ T37] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.657703][ T37] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.673613][ T5139] Bluetooth: hci0: command tx timeout [ 99.858390][ T5886] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.901321][ T5886] veth0_vlan: entered promiscuous mode [ 99.914795][ T5886] veth1_vlan: entered promiscuous mode [ 99.946648][ T5886] veth0_macvtap: entered promiscuous mode [ 99.956629][ T5886] veth1_macvtap: entered promiscuous mode [ 99.976715][ T5886] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.992549][ T5886] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 100.008795][ T12] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.018005][ T12] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.028233][ T12] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.039538][ T12] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/02/03 13:51:56 executed programs: 0 [ 100.205036][ T5893] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 100.213462][ T5893] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 100.221336][ T5893] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 100.231078][ T5893] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 100.243762][ T5893] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 100.467627][ T5934] chnl_net:caif_netlink_parms(): no params data found [ 100.561521][ T5934] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.568885][ T5934] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.577007][ T5934] bridge_slave_0: entered allmulticast mode [ 100.584798][ T5934] bridge_slave_0: entered promiscuous mode [ 100.594488][ T5934] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.601672][ T5934] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.609235][ T5934] bridge_slave_1: entered allmulticast mode [ 100.616744][ T5934] bridge_slave_1: entered promiscuous mode [ 100.655549][ T5934] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.668157][ T5934] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.707568][ T5934] team0: Port device team_slave_0 added [ 100.716713][ T5934] team0: Port device team_slave_1 added [ 100.752959][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.760957][ T5934] 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. [ 100.786951][ T5934] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.801684][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.810187][ T5934] 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. [ 100.837029][ T5934] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.893733][ T5934] hsr_slave_0: entered promiscuous mode [ 100.900171][ T5934] hsr_slave_1: entered promiscuous mode [ 100.906937][ T5934] debugfs: 'hsr0' already exists in 'hsr' [ 100.912713][ T5934] Cannot create hsr debugfs directory [ 101.086121][ T5934] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.098208][ T5934] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.109140][ T5934] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.123638][ T5934] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.212458][ T5934] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.234293][ T5934] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.246649][ T37] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.253799][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.269248][ T60] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.276426][ T60] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.488319][ T5934] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.544883][ T5934] veth0_vlan: entered promiscuous mode [ 101.559404][ T5934] veth1_vlan: entered promiscuous mode [ 101.592038][ T5934] veth0_macvtap: entered promiscuous mode [ 101.602585][ T5934] veth1_macvtap: entered promiscuous mode [ 101.626206][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.648967][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.673728][ T37] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.687471][ T37] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.698153][ T37] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.720243][ T37] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.798789][ T37] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 101.807624][ T37] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 101.860159][ T60] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 101.869544][ T60] 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) [ 102.296311][ T3451] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 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-build3549959663=/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/ccY1LBzk.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