SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 86.083639][ T29] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.220' (ED25519) to the list of known hosts. 2026/03/22 21:51:49 parsed 1 programs [ 93.371509][ T5824] cgroup: Unknown subsys name 'net' [ 93.486654][ T5824] cgroup: Unknown subsys name 'cpuset' [ 93.497347][ T5824] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 95.117307][ T5824] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 97.608712][ T5839] 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. [ 98.079186][ T5846] chnl_net:caif_netlink_parms(): no params data found [ 98.231274][ T5846] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.238889][ T5846] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.246553][ T5846] bridge_slave_0: entered allmulticast mode [ 98.255664][ T5846] bridge_slave_0: entered promiscuous mode [ 98.269539][ T5846] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.276903][ T5846] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.284359][ T5846] bridge_slave_1: entered allmulticast mode [ 98.292075][ T5846] bridge_slave_1: entered promiscuous mode [ 98.331240][ T5846] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.343930][ T5846] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.385171][ T5846] team0: Port device team_slave_0 added [ 98.393560][ T5846] team0: Port device team_slave_1 added [ 98.429622][ T5846] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.436633][ T5846] 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. [ 98.462873][ T5846] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.476824][ T5846] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.483893][ T5846] 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. [ 98.510486][ T5846] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.562516][ T5846] hsr_slave_0: entered promiscuous mode [ 98.569176][ T5846] hsr_slave_1: entered promiscuous mode [ 98.737460][ T5846] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 98.749985][ T5846] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 98.761606][ T5846] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 98.773068][ T5846] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 98.808313][ T5846] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.815546][ T5846] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.823374][ T5846] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.830500][ T5846] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.895523][ T5846] 8021q: adding VLAN 0 to HW filter on device bond0 [ 98.917126][ T1301] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.925354][ T1301] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.941348][ T5846] 8021q: adding VLAN 0 to HW filter on device team0 [ 98.956746][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.963902][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.979259][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.986398][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.220704][ T5846] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.266408][ T5846] veth0_vlan: entered promiscuous mode [ 99.278560][ T5846] veth1_vlan: entered promiscuous mode [ 99.313417][ T5846] veth0_macvtap: entered promiscuous mode [ 99.324008][ T5846] veth1_macvtap: entered promiscuous mode [ 99.343171][ T5846] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.357801][ T5846] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.373895][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.383511][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.395713][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.408570][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.549397][ T1301] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.631504][ T1301] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.699512][ T1301] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.799643][ T1301] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.651124][ T5904] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 101.661230][ T5904] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 101.675798][ T5904] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 101.686541][ T5904] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 101.697576][ T5904] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 101.852478][ T1301] bridge_slave_1: left allmulticast mode [ 101.858237][ T1301] bridge_slave_1: left promiscuous mode [ 101.865091][ T1301] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.878584][ T1301] bridge_slave_0: left allmulticast mode [ 101.885389][ T1301] bridge_slave_0: left promiscuous mode [ 101.891269][ T1301] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.151337][ T1301] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 102.162999][ T1301] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 102.173242][ T1301] bond0 (unregistering): Released all slaves [ 102.281918][ T1301] hsr_slave_0: left promiscuous mode [ 102.288172][ T1301] hsr_slave_1: left promiscuous mode [ 102.294453][ T1301] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 102.302997][ T1301] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 102.311401][ T1301] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 102.318903][ T1301] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 102.350826][ T1301] veth1_macvtap: left promiscuous mode [ 102.356817][ T1301] veth0_macvtap: left promiscuous mode [ 102.362670][ T1301] veth1_vlan: left promiscuous mode [ 102.367992][ T1301] veth0_vlan: left promiscuous mode [ 102.846495][ T1301] team0 (unregistering): Port device team_slave_1 removed [ 102.879557][ T1301] team0 (unregistering): Port device team_slave_0 removed [ 104.151825][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.159759][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 104.219204][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.241848][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/03/22 21:52:06 executed programs: 0 [ 105.382596][ T5139] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 105.390545][ T5139] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 105.406372][ T5139] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 105.415805][ T5139] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 105.424504][ T5139] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 105.819749][ T5977] chnl_net:caif_netlink_parms(): no params data found [ 105.996410][ T5977] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.017477][ T5977] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.025207][ T5977] bridge_slave_0: entered allmulticast mode [ 106.039688][ T5977] bridge_slave_0: entered promiscuous mode [ 106.054209][ T5977] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.061450][ T5977] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.069027][ T5977] bridge_slave_1: entered allmulticast mode [ 106.078340][ T5977] bridge_slave_1: entered promiscuous mode [ 106.120722][ T5977] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 106.135672][ T5977] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 106.203800][ T5977] team0: Port device team_slave_0 added [ 106.213227][ T5977] team0: Port device team_slave_1 added [ 106.266068][ T5977] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 106.273947][ T5977] 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. [ 106.301585][ T5977] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 106.314565][ T5977] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 106.321498][ T5977] 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. [ 106.347748][ T5977] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 106.398690][ T5977] hsr_slave_0: entered promiscuous mode [ 106.405191][ T5977] hsr_slave_1: entered promiscuous mode [ 106.941400][ T5977] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 106.955080][ T5977] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 106.973171][ T5977] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 106.986187][ T5977] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 107.121359][ T5977] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.153496][ T5977] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.167182][ T62] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.174345][ T62] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.204018][ T62] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.211173][ T62] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.260416][ T5977] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 107.442561][ T5139] Bluetooth: hci0: command tx timeout [ 107.519472][ T5977] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.588597][ T5977] veth0_vlan: entered promiscuous mode [ 107.607759][ T5977] veth1_vlan: entered promiscuous mode [ 107.649037][ T5977] veth0_macvtap: entered promiscuous mode [ 107.661346][ T5977] veth1_macvtap: entered promiscuous mode [ 107.689021][ T5977] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 107.706385][ T5977] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 107.724111][ T36] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.734694][ T36] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.748267][ T36] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.761430][ T36] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.860465][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.872022][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.936072][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.954909][ T36] 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-build1549437104=/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 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/ccSVxb7B.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