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 '10.128.1.154' (ED25519) to the list of known hosts. 2026/01/17 13:08:46 parsed 1 programs [ 78.472835][ T5830] cgroup: Unknown subsys name 'net' [ 78.604740][ T5830] cgroup: Unknown subsys name 'cpuset' [ 78.613557][ T5830] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 79.960792][ T5830] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 82.948730][ T5846] 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. [ 83.483707][ T71] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.524965][ T71] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.845894][ T71] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.871245][ T71] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.035805][ T5152] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 84.045695][ T5152] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 84.054405][ T5152] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 84.064745][ T5152] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 84.076023][ T5152] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 84.197986][ T5864] chnl_net:caif_netlink_parms(): no params data found [ 84.518992][ T5864] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.530048][ T5864] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.538317][ T5864] bridge_slave_0: entered allmulticast mode [ 84.545689][ T5864] bridge_slave_0: entered promiscuous mode [ 84.559279][ T5864] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.566900][ T5864] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.574391][ T5864] bridge_slave_1: entered allmulticast mode [ 84.581941][ T5864] bridge_slave_1: entered promiscuous mode [ 84.887141][ T5864] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 84.926252][ T5864] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.156760][ T5864] team0: Port device team_slave_0 added [ 85.166515][ T5864] team0: Port device team_slave_1 added [ 85.260919][ T5864] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.268701][ T5864] 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. [ 85.297750][ T5864] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.318693][ T5864] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.327960][ T5864] 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. [ 85.361946][ T5864] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.611816][ T5864] hsr_slave_0: entered promiscuous mode [ 85.618895][ T5864] hsr_slave_1: entered promiscuous mode [ 86.469216][ T5864] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 86.486922][ T5864] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 86.514693][ T5864] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 86.545769][ T5864] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 86.699544][ T5864] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.734314][ T5864] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.747131][ T1311] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.755201][ T1311] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.780775][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.788175][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.896687][ T5864] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.940334][ T5864] veth0_vlan: entered promiscuous mode [ 86.954820][ T5864] veth1_vlan: entered promiscuous mode [ 86.997780][ T5864] veth0_macvtap: entered promiscuous mode [ 87.009176][ T5864] veth1_macvtap: entered promiscuous mode [ 87.039888][ T5864] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 87.060101][ T5864] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 87.083807][ T1311] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.103643][ T1311] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.126687][ T1311] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.137349][ T1311] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/01/17 13:08:57 executed programs: 0 [ 87.306736][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 87.316761][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 87.329681][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 87.332615][ T71] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 87.350580][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 87.360236][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 87.403792][ T71] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 87.455870][ T71] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 87.550764][ T71] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 87.576283][ T5939] chnl_net:caif_netlink_parms(): no params data found [ 87.649364][ T5939] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.657263][ T5939] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.664879][ T5939] bridge_slave_0: entered allmulticast mode [ 87.672459][ T5939] bridge_slave_0: entered promiscuous mode [ 87.683423][ T5939] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.690791][ T5939] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.698471][ T5939] bridge_slave_1: entered allmulticast mode [ 87.705995][ T5939] bridge_slave_1: entered promiscuous mode [ 87.738072][ T5939] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.750423][ T5939] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.786015][ T5939] team0: Port device team_slave_0 added [ 87.794271][ T5939] team0: Port device team_slave_1 added [ 87.818879][ T5939] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 87.826469][ T5939] 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. [ 87.854114][ T5939] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 87.867280][ T5939] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 87.875720][ T5939] 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. [ 87.903019][ T5939] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.954338][ T5939] hsr_slave_0: entered promiscuous mode [ 87.961796][ T5939] hsr_slave_1: entered promiscuous mode [ 87.968334][ T5939] debugfs: 'hsr0' already exists in 'hsr' [ 87.975154][ T5939] Cannot create hsr debugfs directory [ 89.443333][ T52] Bluetooth: hci0: command tx timeout [ 90.102088][ T71] bridge_slave_1: left allmulticast mode [ 90.108074][ T71] bridge_slave_1: left promiscuous mode [ 90.116183][ T71] bridge0: port 2(bridge_slave_1) entered disabled state [ 90.128625][ T71] bridge_slave_0: left allmulticast mode [ 90.134475][ T71] bridge_slave_0: left promiscuous mode [ 90.140420][ T71] bridge0: port 1(bridge_slave_0) entered disabled state [ 90.396601][ T71] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 90.407930][ T71] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 90.418172][ T71] bond0 (unregistering): Released all slaves [ 90.528942][ T71] hsr_slave_0: left promiscuous mode [ 90.537697][ T71] hsr_slave_1: left promiscuous mode [ 90.544865][ T71] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 90.553361][ T71] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 90.564227][ T71] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 90.572457][ T71] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 90.593958][ T71] veth1_macvtap: left promiscuous mode [ 90.600197][ T71] veth0_macvtap: left promiscuous mode [ 90.606728][ T71] veth1_vlan: left promiscuous mode [ 90.612864][ T71] veth0_vlan: left promiscuous mode [ 91.054466][ T71] team0 (unregistering): Port device team_slave_1 removed [ 91.083140][ T71] team0 (unregistering): Port device team_slave_0 removed [ 91.522217][ T52] Bluetooth: hci0: command tx timeout [ 91.570695][ T5939] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 91.585430][ T5939] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 91.609275][ T5939] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 91.625276][ T5939] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 91.757318][ T5939] 8021q: adding VLAN 0 to HW filter on device bond0 [ 91.782626][ T5939] 8021q: adding VLAN 0 to HW filter on device team0 [ 91.798366][ T1311] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.806195][ T1311] bridge0: port 1(bridge_slave_0) entered forwarding state [ 91.826169][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.833452][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.924703][ T5939] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 91.963830][ T5939] veth0_vlan: entered promiscuous mode [ 91.976157][ T5939] veth1_vlan: entered promiscuous mode [ 92.002131][ T5939] veth0_macvtap: entered promiscuous mode [ 92.011931][ T5939] veth1_macvtap: entered promiscuous mode [ 92.029229][ T5939] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 92.047469][ T5939] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 92.063301][ T1311] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.073948][ T1311] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.084008][ T1311] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.095008][ T50] cfg80211: failed to load regulatory.db [ 92.104266][ T1311] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.168451][ T71] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 92.179747][ T71] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.205785][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 92.214432][ 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) 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-build2368470155=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/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 d6526ea3e 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/ccyLEXVD.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