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 '10.128.0.162' (ED25519) to the list of known hosts.
2025/12/17 07:44:44 parsed 1 programs
[   91.163175][ T5827] cgroup: Unknown subsys name 'net'
[   91.337521][ T5827] cgroup: Unknown subsys name 'cpuset'
[   91.347135][ T5827] cgroup: Unknown subsys name 'rlimit'
[   91.352868][ T5827] cgroup: Unknown subsys name 'memory'
Setting up swapspace version 1, size = 127995904 bytes
[   92.017899][  T979] cfg80211: failed to load regulatory.db
[   93.081832][ T5827] Adding 124996k swap on ./swap-file.  Priority:0 extents:1 across:124996k 
[   96.503779][ T5858] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   96.511745][ T5858] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   96.522218][ T5858] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[   96.530655][ T5858] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[   96.538897][ T5858] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[   97.961557][ T3567] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   97.970269][ T3567] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   98.038790][ T3567] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   98.048226][ T3567] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   98.354417][ T5895] chnl_net:caif_netlink_parms(): no params data found
[   98.475149][ T5895] bridge0: port 1(bridge_slave_0) entered blocking state
[   98.483159][ T5895] bridge0: port 1(bridge_slave_0) entered disabled state
[   98.491244][ T5895] bridge_slave_0: entered allmulticast mode
[   98.498957][ T5895] bridge_slave_0: entered promiscuous mode
[   98.509265][ T5895] bridge0: port 2(bridge_slave_1) entered blocking state
[   98.516790][ T5895] bridge0: port 2(bridge_slave_1) entered disabled state
[   98.524142][ T5895] bridge_slave_1: entered allmulticast mode
[   98.531415][ T5895] bridge_slave_1: entered promiscuous mode
[   98.580577][ T5895] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   98.592722][ T5895] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   98.630578][ T5895] team0: Port device team_slave_0 added
[   98.640210][ T5895] team0: Port device team_slave_1 added
[   98.676533][ T5895] batman_adv: batadv0: Adding interface: batadv_slave_0
[   98.685508][ T5895] 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.
[   98.711582][ T5895] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   98.724857][ T5895] batman_adv: batadv0: Adding interface: batadv_slave_1
[   98.731858][ T5895] 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.
[   98.757939][ T5895] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   98.805055][ T5895] hsr_slave_0: entered promiscuous mode
[   98.811524][ T5895] hsr_slave_1: entered promiscuous mode
[   98.976258][ T5895] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   98.989638][ T5895] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   99.000395][ T5895] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   99.011537][ T5895] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   99.044806][ T5895] bridge0: port 2(bridge_slave_1) entered blocking state
[   99.052123][ T5895] bridge0: port 2(bridge_slave_1) entered forwarding state
[   99.060255][ T5895] bridge0: port 1(bridge_slave_0) entered blocking state
[   99.067422][ T5895] bridge0: port 1(bridge_slave_0) entered forwarding state
[   99.129184][ T5895] 8021q: adding VLAN 0 to HW filter on device bond0
[   99.149306][ T1098] bridge0: port 1(bridge_slave_0) entered disabled state
[   99.158687][ T1098] bridge0: port 2(bridge_slave_1) entered disabled state
[   99.177191][ T5895] 8021q: adding VLAN 0 to HW filter on device team0
[   99.192276][ T3567] bridge0: port 1(bridge_slave_0) entered blocking state
[   99.199519][ T3567] bridge0: port 1(bridge_slave_0) entered forwarding state
[   99.215737][ T1098] bridge0: port 2(bridge_slave_1) entered blocking state
[   99.222887][ T1098] bridge0: port 2(bridge_slave_1) entered forwarding state
[   99.418609][ T5895] 8021q: adding VLAN 0 to HW filter on device batadv0
[   99.471319][ T5895] veth0_vlan: entered promiscuous mode
[   99.482800][ T5895] veth1_vlan: entered promiscuous mode
[   99.511621][ T5895] veth0_macvtap: entered promiscuous mode
[   99.521548][ T5895] veth1_macvtap: entered promiscuous mode
[   99.541115][ T5895] batman_adv: batadv0: Interface activated: batadv_slave_0
[   99.557278][ T5895] batman_adv: batadv0: Interface activated: batadv_slave_1
[   99.572304][ T1098] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   99.583352][ T1098] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   99.595440][ T1098] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   99.605579][ T1098] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   99.722545][ T3567] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   99.811485][ T3567] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   99.871958][ T3567] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   99.945145][ T3567] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
2025/12/17 07:44:57 executed programs: 0
[  101.117895][ T5858] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[  101.130218][ T5858] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[  101.139290][ T5858] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[  101.148270][ T5858] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[  101.156722][ T5858] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[  101.335642][ T5937] chnl_net:caif_netlink_parms(): no params data found
[  101.425640][ T5937] bridge0: port 1(bridge_slave_0) entered blocking state
[  101.432857][ T5937] bridge0: port 1(bridge_slave_0) entered disabled state
[  101.440465][ T5937] bridge_slave_0: entered allmulticast mode
[  101.449045][ T5937] bridge_slave_0: entered promiscuous mode
[  101.458148][ T5937] bridge0: port 2(bridge_slave_1) entered blocking state
[  101.465472][ T5937] bridge0: port 2(bridge_slave_1) entered disabled state
[  101.472683][ T5937] bridge_slave_1: entered allmulticast mode
[  101.480240][ T5937] bridge_slave_1: entered promiscuous mode
[  101.515761][ T5937] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[  101.527648][ T5937] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[  101.567191][ T5937] team0: Port device team_slave_0 added
[  101.575558][ T5937] team0: Port device team_slave_1 added
[  101.607565][ T5937] batman_adv: batadv0: Adding interface: batadv_slave_0
[  101.615014][ T5937] 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.
[  101.641637][ T5937] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[  101.655342][ T5937] batman_adv: batadv0: Adding interface: batadv_slave_1
[  101.662524][ T5937] 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.
[  101.689732][ T5937] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[  101.738333][ T5937] hsr_slave_0: entered promiscuous mode
[  101.744981][ T5937] hsr_slave_1: entered promiscuous mode
[  101.751122][ T5937] debugfs: 'hsr0' already exists in 'hsr'
[  101.757055][ T5937] Cannot create hsr debugfs directory
[  102.496539][ T3567] bridge_slave_1: left allmulticast mode
[  102.502334][ T3567] bridge_slave_1: left promiscuous mode
[  102.511726][ T3567] bridge0: port 2(bridge_slave_1) entered disabled state
[  102.525708][ T3567] bridge_slave_0: left allmulticast mode
[  102.531402][ T3567] bridge_slave_0: left promiscuous mode
[  102.537383][ T3567] bridge0: port 1(bridge_slave_0) entered disabled state
[  102.794646][ T3567] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  102.806135][ T3567] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  102.816763][ T3567] bond0 (unregistering): Released all slaves
[  102.903553][ T3567] hsr_slave_0: left promiscuous mode
[  102.923603][ T3567] hsr_slave_1: left promiscuous mode
[  102.932474][ T3567] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  102.943011][ T3567] batman_adv: batadv0: Removing interface: batadv_slave_0
[  102.952077][ T3567] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  102.959929][ T3567] batman_adv: batadv0: Removing interface: batadv_slave_1
[  102.992242][ T3567] veth1_macvtap: left promiscuous mode
[  102.998169][ T3567] veth0_macvtap: left promiscuous mode
[  103.004426][ T3567] veth1_vlan: left promiscuous mode
[  103.009943][ T3567] veth0_vlan: left promiscuous mode
[  103.215950][   T52] Bluetooth: hci0: command tx timeout
[  103.509562][ T3567] team0 (unregistering): Port device team_slave_1 removed
[  103.536922][ T3567] team0 (unregistering): Port device team_slave_0 removed
[  104.172629][ T5937] netdevsim netdevsim0 netdevsim0: renamed from eth0
[  104.190306][ T5937] netdevsim netdevsim0 netdevsim1: renamed from eth1
[  104.209564][ T5937] netdevsim netdevsim0 netdevsim2: renamed from eth2
[  104.235618][ T5937] netdevsim netdevsim0 netdevsim3: renamed from eth3
[  104.600945][ T5937] 8021q: adding VLAN 0 to HW filter on device bond0
[  104.651096][ T5937] 8021q: adding VLAN 0 to HW filter on device team0
[  104.665239][ T3766] bridge0: port 1(bridge_slave_0) entered blocking state
[  104.672399][ T3766] bridge0: port 1(bridge_slave_0) entered forwarding state
[  104.701437][ T3766] bridge0: port 2(bridge_slave_1) entered blocking state
[  104.708634][ T3766] bridge0: port 2(bridge_slave_1) entered forwarding state
[  104.917192][ T5937] 8021q: adding VLAN 0 to HW filter on device batadv0
[  104.957337][ T5937] veth0_vlan: entered promiscuous mode
[  104.974819][ T5937] veth1_vlan: entered promiscuous mode
[  105.004459][ T5937] veth0_macvtap: entered promiscuous mode
[  105.014281][ T5937] veth1_macvtap: entered promiscuous mode
[  105.034808][ T5937] batman_adv: batadv0: Interface activated: batadv_slave_0
[  105.048925][ T5937] batman_adv: batadv0: Interface activated: batadv_slave_1
[  105.064878][ T1098] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[  105.075325][ T1098] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[  105.086547][ T1098] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[  105.096165][ T1098] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[  105.157856][ T1098] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  105.166482][ T1098] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  105.195118][   T60] wlan1: Created IBSS using preconfigured 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)
[  105.203108][   T60] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  105.294144][   T52] Bluetooth: hci0: command tx timeout


syzkaller build log:
go env (err=<nil>)
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-build1779423925=/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=<nil>)
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/ccH2mkqx.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