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 '10.128.1.163' (ED25519) to the list of known hosts. 2026/04/13 06:01:12 parsed 1 programs [ 208.804268][ T5777] cgroup: Unknown subsys name 'net' [ 208.970448][ T5777] cgroup: Unknown subsys name 'cpuset' [ 208.985664][ T5777] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 215.961278][ T5777] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 221.573005][ T5790] 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. [ 226.031756][ T5829] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 226.042182][ T5829] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 226.060971][ T5829] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 226.094467][ T5829] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 226.116582][ T5829] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 227.117818][ T5834] chnl_net:caif_netlink_parms(): no params data found [ 227.462256][ T5834] bridge0: port 1(bridge_slave_0) entered blocking state [ 227.470008][ T5834] bridge0: port 1(bridge_slave_0) entered disabled state [ 227.477487][ T5834] bridge_slave_0: entered allmulticast mode [ 227.486632][ T5834] bridge_slave_0: entered promiscuous mode [ 227.502518][ T5834] bridge0: port 2(bridge_slave_1) entered blocking state [ 227.510291][ T5834] bridge0: port 2(bridge_slave_1) entered disabled state [ 227.517790][ T5834] bridge_slave_1: entered allmulticast mode [ 227.526965][ T5834] bridge_slave_1: entered promiscuous mode [ 227.604097][ T5834] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 227.622405][ T5834] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 227.695938][ T5834] team0: Port device team_slave_0 added [ 227.711782][ T5834] team0: Port device team_slave_1 added [ 227.778530][ T5834] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 227.787427][ T5834] 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. [ 227.813876][ T5834] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 227.829177][ T5834] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 227.836391][ T5834] 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. [ 227.862730][ T5834] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 227.965180][ T5834] hsr_slave_0: entered promiscuous mode [ 227.973957][ T5834] hsr_slave_1: entered promiscuous mode [ 228.327912][ T5834] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 228.348535][ T5834] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 228.367173][ T5834] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 228.387496][ T5834] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 228.662012][ T5834] 8021q: adding VLAN 0 to HW filter on device bond0 [ 228.710234][ T5834] 8021q: adding VLAN 0 to HW filter on device team0 [ 228.741697][ T34] bridge0: port 1(bridge_slave_0) entered blocking state [ 228.749278][ T34] bridge0: port 1(bridge_slave_0) entered forwarding state [ 228.782965][ T34] bridge0: port 2(bridge_slave_1) entered blocking state [ 228.790502][ T34] bridge0: port 2(bridge_slave_1) entered forwarding state [ 229.311465][ T5834] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 229.448827][ T5834] veth0_vlan: entered promiscuous mode [ 229.477707][ T5834] veth1_vlan: entered promiscuous mode [ 229.571121][ T5834] veth0_macvtap: entered promiscuous mode [ 229.588570][ T5834] veth1_macvtap: entered promiscuous mode [ 229.640671][ T5834] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 229.672482][ T5834] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 229.733047][ T105] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 229.753614][ T105] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 229.765377][ T105] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 229.807790][ T105] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 231.595723][ T3446] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 231.975434][ T3446] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 232.098878][ T3446] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 232.216054][ T3446] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 232.399530][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 232.426009][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 232.612060][ T3446] bridge_slave_1: left allmulticast mode [ 232.617963][ T3446] bridge_slave_1: left promiscuous mode [ 232.642206][ T3446] bridge0: port 2(bridge_slave_1) entered disabled state [ 232.690004][ T3446] bridge_slave_0: left allmulticast mode [ 232.695879][ T3446] bridge_slave_0: left promiscuous mode [ 232.707526][ T3446] bridge0: port 1(bridge_slave_0) entered disabled state [ 233.053019][ T3446] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 233.068154][ T3446] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 233.084334][ T3446] bond0 (unregistering): Released all slaves [ 233.143953][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 233.162977][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 233.261364][ T3446] hsr_slave_0: left promiscuous mode [ 233.285637][ T3446] hsr_slave_1: left promiscuous mode [ 233.313167][ T3446] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 233.340346][ T3446] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 233.372165][ T3446] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 233.383614][ T3446] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 233.445624][ T3446] veth1_macvtap: left promiscuous mode [ 233.462151][ T3446] veth0_macvtap: left promiscuous mode [ 233.491570][ T3446] veth1_vlan: left promiscuous mode [ 233.497196][ T3446] veth0_vlan: left promiscuous mode [ 234.652005][ T3446] team0 (unregistering): Port device team_slave_1 removed [ 234.681922][ T3446] team0 (unregistering): Port device team_slave_0 removed 2026/04/13 06:02:01 executed programs: 0 [ 241.272763][ T5829] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 241.289694][ T5829] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 241.305905][ T5829] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 241.344509][ T5829] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 241.356491][ T5829] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 242.047477][ T5955] chnl_net:caif_netlink_parms(): no params data found [ 242.572265][ T5955] bridge0: port 1(bridge_slave_0) entered blocking state [ 242.584187][ T5955] bridge0: port 1(bridge_slave_0) entered disabled state [ 242.595047][ T5955] bridge_slave_0: entered allmulticast mode [ 242.606493][ T5955] bridge_slave_0: entered promiscuous mode [ 242.625195][ T5955] bridge0: port 2(bridge_slave_1) entered blocking state [ 242.633349][ T5955] bridge0: port 2(bridge_slave_1) entered disabled state [ 242.642635][ T5955] bridge_slave_1: entered allmulticast mode [ 242.653527][ T5955] bridge_slave_1: entered promiscuous mode [ 242.780918][ T5955] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 242.801698][ T5955] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 242.874870][ T5955] team0: Port device team_slave_0 added [ 242.892388][ T5955] team0: Port device team_slave_1 added [ 242.959042][ T5955] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 242.966267][ T5955] 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. [ 242.994684][ T5955] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 243.012227][ T5955] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 243.019305][ T5955] 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. [ 243.048019][ T5955] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 243.152953][ T5955] hsr_slave_0: entered promiscuous mode [ 243.164389][ T5955] hsr_slave_1: entered promiscuous mode [ 243.440370][ T5829] Bluetooth: hci0: command tx timeout [ 244.005903][ T5955] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 244.042833][ T5955] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 244.068486][ T5955] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 244.097789][ T5955] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 244.526350][ T5955] 8021q: adding VLAN 0 to HW filter on device bond0 [ 244.601697][ T5955] 8021q: adding VLAN 0 to HW filter on device team0 [ 244.634773][ T3446] bridge0: port 1(bridge_slave_0) entered blocking state [ 244.642539][ T3446] bridge0: port 1(bridge_slave_0) entered forwarding state [ 244.687543][ T105] bridge0: port 2(bridge_slave_1) entered blocking state [ 244.695237][ T105] bridge0: port 2(bridge_slave_1) entered forwarding state [ 245.524114][ T5829] Bluetooth: hci0: command tx timeout [ 245.570120][ T5955] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 245.783792][ T5955] veth0_vlan: entered promiscuous mode [ 245.825565][ T5955] veth1_vlan: entered promiscuous mode [ 245.998628][ T5955] veth0_macvtap: entered promiscuous mode [ 246.045445][ T5955] veth1_macvtap: entered promiscuous mode [ 246.152138][ T5955] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 246.205937][ T5955] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 246.266946][ T3446] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 246.304948][ T3446] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 246.335636][ T3446] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 246.362872][ T3446] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 247.610282][ T5829] Bluetooth: hci0: command tx timeout [ 248.696931][ T3446] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 248.721152][ T3446] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 248.815389][ T3446] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 248.828133][ T3446] 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) [ 249.585788][ T34] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 249.701701][ T34] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 249.830915][ T34] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 249.944165][ T34] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 250.330599][ T34] bridge_slave_1: left allmulticast mode [ 250.336487][ T34] bridge_slave_1: left promiscuous mode [ 250.352358][ T34] bridge0: port 2(bridge_slave_1) entered disabled state [ 250.423889][ T34] bridge_slave_0: left allmulticast mode [ 250.440343][ T34] bridge_slave_0: left promiscuous mode [ 250.447088][ T34] bridge0: port 1(bridge_slave_0) entered disabled state [ 251.264965][ T34] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 251.307328][ T34] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 251.324237][ T34] bond0 (unregistering): Released all slaves [ 251.886824][ T34] hsr_slave_0: left promiscuous mode [ 251.905792][ T34] hsr_slave_1: left promiscuous mode [ 251.923885][ T34] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 251.950437][ T34] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 251.972082][ T34] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 251.979691][ T34] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 252.006645][ T34] veth1_macvtap: left promiscuous mode [ 252.013027][ T34] veth0_macvtap: left promiscuous mode [ 252.018966][ T34] veth1_vlan: left promiscuous mode [ 252.038540][ T34] veth0_vlan: left promiscuous mode [ 253.052185][ T34] team0 (unregistering): Port device team_slave_1 removed [ 253.122233][ T34] 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-build394888775=/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='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at d6526ea3e6a 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/cc6IHGG1.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