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 '[localhost]:29769' (ED25519) to the list of known hosts. 2026/02/03 09:37:03 parsed 1 programs syzkaller login: [ 90.714663][ T5315] cgroup: Unknown subsys name 'net' [ 90.797849][ T5315] cgroup: Unknown subsys name 'cpuset' [ 90.803865][ T5315] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 92.561966][ T5315] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 93.438289][ T80] ODEBUG: Out of memory. ODEBUG disabled [ 97.074972][ T921] cfg80211: failed to load regulatory.db [ 98.085795][ T5341] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.101214][ T5341] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.105106][ T5341] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.108800][ T5341] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.114741][ T5341] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 99.087877][ T5336] 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. [ 103.120500][ T55] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.150295][ T55] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.495354][ T1047] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.499280][ T1047] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.580214][ T5363] chnl_net:caif_netlink_parms(): no params data found [ 103.988450][ T5363] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.004324][ T5363] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.007736][ T5363] bridge_slave_0: entered allmulticast mode [ 104.055579][ T5363] bridge_slave_0: entered promiscuous mode [ 104.085877][ T5363] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.094754][ T5363] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.097974][ T5363] bridge_slave_1: entered allmulticast mode [ 104.124216][ T5363] bridge_slave_1: entered promiscuous mode [ 104.208667][ T5363] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 104.246071][ T5363] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 104.367642][ T5363] team0: Port device team_slave_0 added [ 104.373072][ T5363] team0: Port device team_slave_1 added [ 104.515332][ T5363] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 104.518386][ T5363] 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. [ 104.574250][ T5363] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 104.595775][ T5363] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 104.598916][ T5363] 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. [ 104.651815][ T5363] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 104.768361][ T5363] hsr_slave_0: entered promiscuous mode [ 104.774612][ T5363] hsr_slave_1: entered promiscuous mode [ 105.138835][ T5363] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 105.159701][ T5363] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 105.166299][ T5363] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 105.185993][ T5363] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 105.335477][ T5363] 8021q: adding VLAN 0 to HW filter on device bond0 [ 105.360349][ T5363] 8021q: adding VLAN 0 to HW filter on device team0 [ 105.382395][ T1040] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.386113][ T1040] bridge0: port 1(bridge_slave_0) entered forwarding state [ 105.393544][ T1040] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.396831][ T1040] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.712656][ T5363] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 105.777297][ T5363] veth0_vlan: entered promiscuous mode [ 105.796646][ T5363] veth1_vlan: entered promiscuous mode [ 105.840712][ T5363] veth0_macvtap: entered promiscuous mode [ 105.858089][ T5363] veth1_macvtap: entered promiscuous mode [ 105.882293][ T5363] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.900799][ T5363] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.926229][ T55] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.932885][ T55] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.955388][ T55] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.969623][ T55] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/02/03 09:37:21 executed programs: 0 [ 106.210377][ T4670] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 106.215948][ T4670] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 106.219230][ T4670] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 106.223757][ T4670] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 106.227907][ T4670] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 106.571227][ T5434] chnl_net:caif_netlink_parms(): no params data found [ 106.695730][ T5434] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.698969][ T5434] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.702322][ T5434] bridge_slave_0: entered allmulticast mode [ 106.707085][ T5434] bridge_slave_0: entered promiscuous mode [ 106.725145][ T5434] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.728429][ T5434] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.731753][ T5434] bridge_slave_1: entered allmulticast mode [ 106.745605][ T5434] bridge_slave_1: entered promiscuous mode [ 106.800249][ T5434] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 106.817289][ T5434] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 106.867776][ T5434] team0: Port device team_slave_0 added [ 106.875656][ T5434] team0: Port device team_slave_1 added [ 106.912850][ T5434] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 106.934702][ T5434] 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. [ 106.955250][ T5434] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 106.980546][ T5434] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 106.983654][ T5434] 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. [ 107.004911][ T5434] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 107.084812][ T5434] hsr_slave_0: entered promiscuous mode [ 107.095386][ T5434] hsr_slave_1: entered promiscuous mode [ 107.098769][ T5434] debugfs: 'hsr0' already exists in 'hsr' [ 107.101452][ T5434] Cannot create hsr debugfs directory [ 107.291954][ T5434] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 107.301573][ T5434] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 107.308138][ T5434] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 107.315316][ T5434] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 107.339541][ T5434] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.343064][ T5434] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.346554][ T5434] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.349797][ T5434] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.376110][ T55] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.380172][ T55] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.416766][ T5434] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.431036][ T5434] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.439913][ T55] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.443215][ T55] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.475996][ T31] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.479284][ T31] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.758573][ T5434] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.822969][ T5434] veth0_vlan: entered promiscuous mode [ 107.845108][ T5434] veth1_vlan: entered promiscuous mode [ 107.882757][ T5434] veth0_macvtap: entered promiscuous mode [ 107.907139][ T5434] veth1_macvtap: entered promiscuous mode [ 107.940322][ T5434] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 107.950761][ T5434] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 107.960972][ T1047] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.970808][ T1047] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.990213][ T1047] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.010092][ T1047] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.043380][ T31] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.056610][ T31] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.080749][ T31] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.085074][ T31] 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) [ 108.261889][ T5341] Bluetooth: hci0: command tx timeout [ 108.757089][ T31] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.877183][ T31] netdevsim netdevsim2 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.935361][ T31] netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.996628][ T31] netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.254657][ T31] bridge_slave_1: left allmulticast mode [ 109.257645][ T31] bridge_slave_1: left promiscuous mode [ 109.260912][ T31] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.281249][ T31] bridge_slave_0: left allmulticast mode [ 109.283847][ T31] bridge_slave_0: left promiscuous mode [ 109.309152][ T31] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.978391][ T31] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 109.987080][ T31] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 109.991944][ T31] bond0 (unregistering): Released all slaves [ 110.319350][ T31] hsr_slave_0: left promiscuous mode [ 110.333478][ T31] hsr_slave_1: left promiscuous mode [ 110.345242][ T31] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 110.348575][ T31] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 110.358845][ T31] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 110.362284][ T31] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 110.390574][ T31] veth1_macvtap: left promiscuous mode [ 110.393548][ T31] veth0_macvtap: left promiscuous mode [ 110.414340][ T31] veth1_vlan: left promiscuous mode [ 110.416870][ T31] veth0_vlan: left promiscuous mode [ 110.778265][ T31] team0 (unregistering): Port device team_slave_1 removed [ 110.803630][ T31] team0 (unregistering): Port device team_slave_0 removed [ 111.316864][ T31] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.368098][ T31] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.419098][ T31] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.466967][ T31] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.626434][ T31] bridge_slave_1: left allmulticast mode [ 111.629045][ T31] bridge_slave_1: left promiscuous mode [ 111.631752][ T31] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.646843][ T31] bridge_slave_0: left allmulticast mode [ 111.649476][ T31] bridge_slave_0: left promiscuous mode [ 111.664441][ T31] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.916153][ T31] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 111.921674][ T31] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 111.927131][ T31] bond0 (unregistering): Released all slaves [ 112.180533][ T31] hsr_slave_0: left promiscuous mode [ 112.183635][ T31] hsr_slave_1: left promiscuous mode [ 112.195025][ T31] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 112.198390][ T31] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 112.212731][ T31] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 112.219560][ T31] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 112.242587][ T31] veth1_macvtap: left promiscuous mode [ 112.256669][ T31] veth0_macvtap: left promiscuous mode [ 112.259281][ T31] veth1_vlan: left promiscuous mode [ 112.261745][ T31] veth0_vlan: left promiscuous mode [ 112.601686][ T31] team0 (unregistering): Port device team_slave_1 removed [ 112.626007][ T31] team0 (unregistering): Port device team_slave_0 removed 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-build293687551=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/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 d1b870e1003b 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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" -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=\"d1b870e1003b52891d2196c1e2ee42fe905010ba\" /usr/bin/ld: /tmp/ccvs6EWU.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