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 '10.128.1.228' (ED25519) to the list of known hosts. 2026/01/09 16:32:05 parsed 1 programs [ 89.416891][ T5734] cgroup: Unknown subsys name 'net' [ 89.604160][ T5734] cgroup: Unknown subsys name 'cpuset' [ 89.613232][ T5734] cgroup: Unknown subsys name 'rlimit' [ 89.619678][ T5734] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 91.197409][ T5734] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 95.782876][ T5781] chnl_net:caif_netlink_parms(): no params data found [ 95.886543][ T5781] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.895700][ T5781] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.903834][ T5781] bridge_slave_0: entered allmulticast mode [ 95.911624][ T5781] bridge_slave_0: entered promiscuous mode [ 95.921811][ T5781] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.929290][ T5781] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.936620][ T5781] bridge_slave_1: entered allmulticast mode [ 95.943951][ T5781] bridge_slave_1: entered promiscuous mode [ 95.981189][ T5781] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.993634][ T5781] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 96.027213][ T5781] team0: Port device team_slave_0 added [ 96.035728][ T5781] team0: Port device team_slave_1 added [ 96.062417][ T5781] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 96.069410][ T5781] 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. [ 96.095885][ T5781] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 96.108791][ T5781] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 96.115947][ T5781] 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. [ 96.143334][ T5781] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 96.187388][ T5781] hsr_slave_0: entered promiscuous mode [ 96.194149][ T5781] hsr_slave_1: entered promiscuous mode [ 96.342618][ T5781] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.356048][ T5781] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.367169][ T5781] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.378717][ T5781] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.409578][ T5781] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.416869][ T5781] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.425129][ T5781] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.432353][ T5781] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.492246][ T5781] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.513010][ T225] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.521621][ T225] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.538998][ T5781] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.554013][ T32] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.561422][ T32] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.575818][ T32] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.583064][ T32] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.744380][ T5781] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.790486][ T5781] veth0_vlan: entered promiscuous mode [ 96.804493][ T5781] veth1_vlan: entered promiscuous mode [ 96.834629][ T5781] veth0_macvtap: entered promiscuous mode [ 96.844839][ T5781] veth1_macvtap: entered promiscuous mode [ 96.868701][ T5781] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.884094][ T5781] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 96.902235][ T225] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.911764][ T225] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.922239][ T225] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.933987][ T225] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.076765][ T32] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.106397][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.114490][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.123768][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 97.133105][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 97.147157][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.176060][ T32] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.245700][ T32] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.266045][ T44] cfg80211: failed to load regulatory.db [ 97.342607][ T32] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.506001][ T1321] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.526630][ T1321] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.553808][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.563296][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/01/09 16:32:19 executed programs: 0 [ 99.027224][ T5051] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 99.037063][ T5051] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 99.046916][ T5051] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 99.055678][ T5051] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 99.064094][ T5051] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 99.220969][ T5847] chnl_net:caif_netlink_parms(): no params data found [ 99.314639][ T5847] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.322037][ T5847] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.329205][ T5847] bridge_slave_0: entered allmulticast mode [ 99.336689][ T5847] bridge_slave_0: entered promiscuous mode [ 99.345969][ T5847] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.353660][ T5847] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.361069][ T5847] bridge_slave_1: entered allmulticast mode [ 99.368508][ T5847] bridge_slave_1: entered promiscuous mode [ 99.402344][ T5847] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.414485][ T5847] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.449291][ T5847] team0: Port device team_slave_0 added [ 99.457743][ T5847] team0: Port device team_slave_1 added [ 99.486720][ T5847] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.494013][ T5847] 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. [ 99.520721][ T5847] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.533671][ T5847] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.541230][ T5847] 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. [ 99.568163][ T5847] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.614327][ T5847] hsr_slave_0: entered promiscuous mode [ 99.620972][ T5847] hsr_slave_1: entered promiscuous mode [ 99.627211][ T5847] debugfs: 'hsr0' already exists in 'hsr' [ 99.633917][ T5847] Cannot create hsr debugfs directory [ 99.933738][ T32] bridge_slave_1: left allmulticast mode [ 99.939750][ T32] bridge_slave_1: left promiscuous mode [ 99.950849][ T32] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.967631][ T32] bridge_slave_0: left allmulticast mode [ 99.980075][ T32] bridge_slave_0: left promiscuous mode [ 99.985990][ T32] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.374737][ T32] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 100.386471][ T32] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 100.396890][ T32] bond0 (unregistering): Released all slaves [ 100.501826][ T32] hsr_slave_0: left promiscuous mode [ 100.508049][ T32] hsr_slave_1: left promiscuous mode [ 100.514645][ T32] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 100.523465][ T32] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 100.532958][ T32] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 100.540737][ T32] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 100.562146][ T32] veth1_macvtap: left promiscuous mode [ 100.567980][ T32] veth0_macvtap: left promiscuous mode [ 100.574960][ T32] veth1_vlan: left promiscuous mode [ 100.581470][ T32] veth0_vlan: left promiscuous mode [ 101.060667][ T32] team0 (unregistering): Port device team_slave_1 removed [ 101.089421][ T32] team0 (unregistering): Port device team_slave_0 removed [ 101.093090][ T52] Bluetooth: hci0: command tx timeout [ 101.644701][ T5847] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.658831][ T5847] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.672742][ T5847] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.687029][ T5847] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 102.137823][ T5847] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.183243][ T5847] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.231640][ T1321] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.238950][ T1321] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.254666][ T1321] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.261840][ T1321] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.695210][ T5847] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.793665][ T5847] veth0_vlan: entered promiscuous mode [ 102.840520][ T5847] veth1_vlan: entered promiscuous mode [ 102.892800][ T5847] veth0_macvtap: entered promiscuous mode [ 102.915312][ T5847] veth1_macvtap: entered promiscuous mode [ 102.941341][ T5847] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.959402][ T5847] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.979775][ T32] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.999861][ T32] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.027248][ T32] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.054726][ T32] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.094294][ T32] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.116930][ T32] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.163211][ T225] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.175172][ T52] Bluetooth: hci0: command tx timeout [ 103.190571][ T225] 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-build158857693=/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 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/ccgbPa8c.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