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 '10.128.1.220' (ED25519) to the list of known hosts. 2025/12/08 06:08:45 parsed 1 programs [ 80.568471][ T5835] cgroup: Unknown subsys name 'net' [ 80.737895][ T5835] cgroup: Unknown subsys name 'cpuset' [ 80.747550][ T5835] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 82.378701][ T5835] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 85.176358][ T5846] chnl_net:caif_netlink_parms(): no params data found [ 85.252037][ T5846] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.259854][ T5846] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.267947][ T5846] bridge_slave_0: entered allmulticast mode [ 85.275836][ T5846] bridge_slave_0: entered promiscuous mode [ 85.285305][ T5846] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.292659][ T5846] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.301042][ T5846] bridge_slave_1: entered allmulticast mode [ 85.308395][ T5846] bridge_slave_1: entered promiscuous mode [ 85.339609][ T5846] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.351781][ T5846] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.383521][ T5846] team0: Port device team_slave_0 added [ 85.391461][ T5846] team0: Port device team_slave_1 added [ 85.418135][ T5846] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.426158][ 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. [ 85.452312][ T5846] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.465292][ T5846] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.472528][ 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. [ 85.499953][ T5846] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.542273][ T5846] hsr_slave_0: entered promiscuous mode [ 85.549470][ T5846] hsr_slave_1: entered promiscuous mode [ 85.698098][ T5846] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.710372][ T5846] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.720791][ T5846] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.731671][ T5846] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.763570][ T5846] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.771157][ T5846] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.779469][ T5846] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.786758][ T5846] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.841622][ T5846] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.861268][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.871035][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.888626][ T5846] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.902665][ T1167] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.910991][ T1167] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.926919][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.934428][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.106940][ T5846] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.148700][ T5846] veth0_vlan: entered promiscuous mode [ 86.161121][ T5846] veth1_vlan: entered promiscuous mode [ 86.190643][ T5846] veth0_macvtap: entered promiscuous mode [ 86.201565][ T5846] veth1_macvtap: entered promiscuous mode [ 86.221704][ T5846] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.238028][ T5846] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.255901][ T1167] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.267532][ T1167] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.282145][ T1167] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.291809][ T1167] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.358097][ 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. [ 86.499947][ T1130] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.579593][ T1130] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.653786][ T1130] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.773456][ T1130] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.920449][ T980] cfg80211: failed to load regulatory.db [ 88.255927][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 88.269511][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 88.278235][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 88.286903][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 88.295498][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 88.606147][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.618956][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 88.649294][ T3455] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.658849][ T3455] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 89.147456][ T1130] bridge_slave_1: left allmulticast mode [ 89.153339][ T1130] bridge_slave_1: left promiscuous mode [ 89.162769][ T1130] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.198441][ T1130] bridge_slave_0: left allmulticast mode [ 89.208602][ T1130] bridge_slave_0: left promiscuous mode [ 89.214467][ T1130] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.471176][ T1130] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 89.482915][ T1130] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 89.493918][ T1130] bond0 (unregistering): Released all slaves [ 89.606581][ T1130] hsr_slave_0: left promiscuous mode [ 89.614935][ T1130] hsr_slave_1: left promiscuous mode [ 89.621473][ T1130] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 89.629576][ T1130] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 89.639972][ T1130] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 89.648991][ T1130] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 89.678051][ T1130] veth1_macvtap: left promiscuous mode [ 89.683876][ T1130] veth0_macvtap: left promiscuous mode [ 89.695563][ T1130] veth1_vlan: left promiscuous mode [ 89.701061][ T1130] veth0_vlan: left promiscuous mode [ 90.151748][ T1130] team0 (unregistering): Port device team_slave_1 removed [ 90.180639][ T1130] team0 (unregistering): Port device team_slave_0 removed 2025/12/08 06:08:58 executed programs: 0 [ 91.531760][ T5151] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 91.542382][ T5151] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 91.555029][ T5151] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 91.575161][ T5151] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 91.583559][ T5151] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 92.038753][ T5975] chnl_net:caif_netlink_parms(): no params data found [ 92.337812][ T5975] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.353902][ T5975] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.361276][ T5975] bridge_slave_0: entered allmulticast mode [ 92.370465][ T5975] bridge_slave_0: entered promiscuous mode [ 92.390146][ T5975] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.400511][ T5975] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.409232][ T5975] bridge_slave_1: entered allmulticast mode [ 92.419786][ T5975] bridge_slave_1: entered promiscuous mode [ 92.498010][ T5975] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.510867][ T5975] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.553735][ T5975] team0: Port device team_slave_0 added [ 92.562693][ T5975] team0: Port device team_slave_1 added [ 92.606007][ T5975] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 92.613249][ T5975] 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. [ 92.640999][ T5975] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 92.654890][ T5975] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 92.661922][ T5975] 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. [ 92.689373][ T5975] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 92.812894][ T5975] hsr_slave_0: entered promiscuous mode [ 92.835971][ T5975] hsr_slave_1: entered promiscuous mode [ 93.511142][ T5975] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 93.527073][ T5975] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 93.539458][ T5975] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 93.552749][ T5975] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 93.636218][ T52] Bluetooth: hci0: command tx timeout [ 93.674308][ T5975] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.699493][ T5975] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.713279][ T1167] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.721106][ T1167] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.749309][ T1167] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.756886][ T1167] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.005681][ T5975] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 94.073867][ T5975] veth0_vlan: entered promiscuous mode [ 94.089021][ T5975] veth1_vlan: entered promiscuous mode [ 94.135082][ T5975] veth0_macvtap: entered promiscuous mode [ 94.148238][ T5975] veth1_macvtap: entered promiscuous mode [ 94.177415][ T5975] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 94.196611][ T5975] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 94.214009][ T1130] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.222880][ T1130] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.257357][ T1130] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.283049][ T1130] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.334841][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.342899][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.399046][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.408247][ 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-build3183255281=/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/ccCOMUne.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