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 '10.128.1.106' (ED25519) to the list of known hosts. 2025/12/09 09:10:15 parsed 1 programs [ 75.992467][ T5832] cgroup: Unknown subsys name 'net' [ 76.142667][ T5832] cgroup: Unknown subsys name 'cpuset' [ 76.151416][ T5832] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 77.595077][ T5832] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 80.460844][ T5845] 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. [ 81.242889][ T5861] chnl_net:caif_netlink_parms(): no params data found [ 81.311989][ T5861] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.321106][ T5861] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.328328][ T5861] bridge_slave_0: entered allmulticast mode [ 81.336214][ T5861] bridge_slave_0: entered promiscuous mode [ 81.345989][ T5861] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.353544][ T5861] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.360964][ T5861] bridge_slave_1: entered allmulticast mode [ 81.368498][ T5861] bridge_slave_1: entered promiscuous mode [ 81.403905][ T5861] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.416695][ T5861] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.452764][ T5861] team0: Port device team_slave_0 added [ 81.460709][ T5861] team0: Port device team_slave_1 added [ 81.485624][ T5861] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.493164][ T5861] 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. [ 81.519355][ T5861] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.531979][ T5861] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.538964][ T5861] 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. [ 81.565266][ T5861] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.606523][ T5861] hsr_slave_0: entered promiscuous mode [ 81.613888][ T5861] hsr_slave_1: entered promiscuous mode [ 81.817675][ T5861] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.835438][ T5861] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.850630][ T5861] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.862861][ T5861] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.940592][ T5861] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.948111][ T5861] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.956756][ T5861] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.964785][ T5861] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.023328][ T5861] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.042887][ T80] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.052328][ T80] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.069876][ T5861] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.083860][ T3428] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.091321][ T3428] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.105113][ T80] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.112352][ T80] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.274158][ T5861] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.324556][ T5861] veth0_vlan: entered promiscuous mode [ 82.337472][ T5861] veth1_vlan: entered promiscuous mode [ 82.365884][ T5861] veth0_macvtap: entered promiscuous mode [ 82.376681][ T5861] veth1_macvtap: entered promiscuous mode [ 82.396508][ T5861] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.411419][ T5861] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.431571][ T3499] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.442200][ T3499] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.451306][ T3499] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.462716][ T3499] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.586951][ T3499] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.651331][ T3499] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.722723][ T3499] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.812651][ T3499] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.448431][ T3428] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.460946][ T3428] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.488354][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.496431][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.295140][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 84.303673][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 84.311805][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 84.321042][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 84.328632][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 2025/12/09 09:10:26 executed programs: 0 [ 85.187303][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 85.195676][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 85.204074][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 85.212657][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 85.222433][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 85.363273][ T3499] bridge_slave_1: left allmulticast mode [ 85.369160][ T3499] bridge_slave_1: left promiscuous mode [ 85.376090][ T3499] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.387694][ T3499] bridge_slave_0: left allmulticast mode [ 85.394633][ T3499] bridge_slave_0: left promiscuous mode [ 85.400931][ T3499] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.626613][ T3499] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 85.637531][ T3499] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 85.648876][ T3499] bond0 (unregistering): Released all slaves [ 85.763546][ T3499] hsr_slave_0: left promiscuous mode [ 85.781602][ T3499] hsr_slave_1: left promiscuous mode [ 85.788160][ T3499] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.796734][ T3499] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.811431][ T3499] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.818930][ T3499] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.841293][ T3499] veth1_macvtap: left promiscuous mode [ 85.847021][ T3499] veth0_macvtap: left promiscuous mode [ 85.854050][ T3499] veth1_vlan: left promiscuous mode [ 85.860044][ T3499] veth0_vlan: left promiscuous mode [ 86.282815][ T3499] team0 (unregistering): Port device team_slave_1 removed [ 86.306703][ T3499] team0 (unregistering): Port device team_slave_0 removed [ 86.552043][ T5943] chnl_net:caif_netlink_parms(): no params data found [ 86.655980][ T5943] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.663880][ T5943] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.671156][ T5943] bridge_slave_0: entered allmulticast mode [ 86.682380][ T5943] bridge_slave_0: entered promiscuous mode [ 86.693616][ T5943] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.701631][ T5943] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.708936][ T5943] bridge_slave_1: entered allmulticast mode [ 86.716963][ T5943] bridge_slave_1: entered promiscuous mode [ 86.769597][ T5943] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 86.783631][ T5943] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 86.800960][ T24] cfg80211: failed to load regulatory.db [ 86.850061][ T5943] team0: Port device team_slave_0 added [ 86.859974][ T5943] team0: Port device team_slave_1 added [ 86.903451][ T5943] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 86.911016][ T5943] 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. [ 86.940603][ T5943] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 86.954181][ T5943] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 86.961530][ T5943] 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. [ 86.989589][ T5943] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.066114][ T5943] hsr_slave_0: entered promiscuous mode [ 87.080634][ T5943] hsr_slave_1: entered promiscuous mode [ 87.279152][ T5150] Bluetooth: hci0: command tx timeout [ 88.463744][ T5943] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 88.484649][ T5943] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 88.497442][ T5943] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 88.516188][ T5943] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 88.634188][ T5943] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.657839][ T5943] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.675784][ T3428] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.683104][ T3428] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.709800][ T80] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.717294][ T80] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.990982][ T5943] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 89.058315][ T5943] veth0_vlan: entered promiscuous mode [ 89.075487][ T5943] veth1_vlan: entered promiscuous mode [ 89.122609][ T5943] veth0_macvtap: entered promiscuous mode [ 89.135059][ T5943] veth1_macvtap: entered promiscuous mode [ 89.161526][ T5943] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 89.182377][ T5943] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 89.203991][ T80] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.215326][ T80] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.227431][ T80] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.245422][ T80] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.324932][ T3428] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 89.338494][ T3428] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 89.355991][ T5150] Bluetooth: hci0: command tx timeout [ 89.375568][ T3499] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 89.387947][ T3499] 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-build2961269240=/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 64219f153 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=64219f1537429ca826770c4d6f3d49ee6964d16c -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-170613" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=64219f1537429ca826770c4d6f3d49ee6964d16c -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-170613" ./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=64219f1537429ca826770c4d6f3d49ee6964d16c -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-170613" -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=\"64219f1537429ca826770c4d6f3d49ee6964d16c\" /usr/bin/ld: /tmp/ccSaqYsG.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