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 '10.128.1.195' (ED25519) to the list of known hosts. 2026/03/31 12:17:52 parsed 1 programs [ 76.687198][ T5844] cgroup: Unknown subsys name 'net' [ 76.843151][ T5844] cgroup: Unknown subsys name 'cpuset' [ 76.852473][ T5844] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 78.263153][ T5844] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 80.872171][ T5856] 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. [ 80.977486][ T5864] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 80.990150][ T5864] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.000003][ T5864] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 81.011393][ T5864] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 81.020199][ T5864] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 83.013609][ T1040] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.026220][ T1040] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.057561][ T1167] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.066345][ T1167] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.343711][ T5911] chnl_net:caif_netlink_parms(): no params data found [ 83.408953][ T5911] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.418653][ T5911] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.425961][ T5911] bridge_slave_0: entered allmulticast mode [ 83.433395][ T5911] bridge_slave_0: entered promiscuous mode [ 83.446207][ T5911] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.453946][ T5911] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.461491][ T5911] bridge_slave_1: entered allmulticast mode [ 83.469150][ T5911] bridge_slave_1: entered promiscuous mode [ 83.500898][ T5911] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 83.536701][ T5911] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 83.567076][ T5911] team0: Port device team_slave_0 added [ 83.576767][ T5911] team0: Port device team_slave_1 added [ 83.611985][ T5911] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 83.618943][ T5911] 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. [ 83.645440][ T5911] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 83.661491][ T5911] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 83.668461][ T5911] 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. [ 83.694640][ T5911] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 83.753299][ T5911] hsr_slave_0: entered promiscuous mode [ 83.759851][ T5911] hsr_slave_1: entered promiscuous mode [ 83.942726][ T5911] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.955629][ T5911] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.966911][ T5911] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.977640][ T5911] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 84.058734][ T5911] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.080181][ T5911] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.094870][ T151] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.103092][ T151] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.118609][ T35] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.125763][ T35] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.292551][ T5911] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.337479][ T5911] veth0_vlan: entered promiscuous mode [ 84.349152][ T5911] veth1_vlan: entered promiscuous mode [ 84.376594][ T5911] veth0_macvtap: entered promiscuous mode [ 84.387624][ T5911] veth1_macvtap: entered promiscuous mode [ 84.406260][ T5911] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.420338][ T5911] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.443170][ T1167] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.452726][ T1167] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.464327][ T1167] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.474289][ T1167] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.616716][ T1040] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.738016][ T1040] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.816163][ T1040] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.921844][ T1040] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/03/31 12:18:04 executed programs: 0 [ 85.592461][ T5864] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 85.603272][ T5864] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 85.612475][ T5864] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 85.620656][ T5864] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 85.628834][ T5864] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 85.790181][ T5951] chnl_net:caif_netlink_parms(): no params data found [ 85.870976][ T5951] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.878351][ T5951] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.886142][ T5951] bridge_slave_0: entered allmulticast mode [ 85.894032][ T5951] bridge_slave_0: entered promiscuous mode [ 85.903215][ T5951] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.910596][ T5951] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.917803][ T5951] bridge_slave_1: entered allmulticast mode [ 85.925512][ T5951] bridge_slave_1: entered promiscuous mode [ 85.958251][ T5951] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.970036][ T5951] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 86.001733][ T5951] team0: Port device team_slave_0 added [ 86.009331][ T5951] team0: Port device team_slave_1 added [ 86.038288][ T5951] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 86.045493][ T5951] 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. [ 86.073366][ T5951] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 86.085972][ T5951] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 86.093026][ T5951] 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. [ 86.119604][ T5951] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 86.167702][ T5951] hsr_slave_0: entered promiscuous mode [ 86.174301][ T5951] hsr_slave_1: entered promiscuous mode [ 86.181323][ T5951] debugfs: 'hsr0' already exists in 'hsr' [ 86.187142][ T5951] Cannot create hsr debugfs directory [ 86.835250][ T1580] cfg80211: failed to load regulatory.db [ 87.708582][ T1040] bridge_slave_1: left allmulticast mode [ 87.715642][ T1040] bridge_slave_1: left promiscuous mode [ 87.720778][ T5162] Bluetooth: hci0: command tx timeout [ 87.722623][ T1040] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.738281][ T1040] bridge_slave_0: left allmulticast mode [ 87.744755][ T1040] bridge_slave_0: left promiscuous mode [ 87.751248][ T1040] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.912367][ T1040] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 87.923433][ T1040] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 87.933595][ T1040] bond0 (unregistering): Released all slaves [ 88.053792][ T1040] hsr_slave_0: left promiscuous mode [ 88.060294][ T1040] hsr_slave_1: left promiscuous mode [ 88.066549][ T1040] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 88.077187][ T1040] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 88.086191][ T1040] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 88.094136][ T1040] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 88.115603][ T1040] veth1_macvtap: left promiscuous mode [ 88.122153][ T1040] veth0_macvtap: left promiscuous mode [ 88.128513][ T1040] veth1_vlan: left promiscuous mode [ 88.135136][ T1040] veth0_vlan: left promiscuous mode [ 88.423710][ T1040] team0 (unregistering): Port device team_slave_1 removed [ 88.453756][ T1040] team0 (unregistering): Port device team_slave_0 removed [ 88.879872][ T5951] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 88.896755][ T5951] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 88.908635][ T5951] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 88.931714][ T5951] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 89.231510][ T5951] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.267091][ T5951] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.297153][ T151] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.304490][ T151] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.376094][ T151] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.383408][ T151] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.688723][ T5951] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 89.761321][ T5951] veth0_vlan: entered promiscuous mode [ 89.777430][ T5951] veth1_vlan: entered promiscuous mode [ 89.790549][ T5162] Bluetooth: hci0: command tx timeout [ 89.819137][ T5951] veth0_macvtap: entered promiscuous mode [ 89.831920][ T5951] veth1_macvtap: entered promiscuous mode [ 89.853002][ T5951] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 89.869104][ T5951] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 89.893790][ T35] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.920509][ T35] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.942900][ T35] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.965486][ T35] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.071020][ T35] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.090191][ T35] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 90.129947][ T151] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.138204][ T151] 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-build2833628369=/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='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at 4fb8ef376b 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=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" ./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=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" -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=\"4fb8ef376b21a14e0ed92c40c92913ac567bd2a3\" /usr/bin/ld: /tmp/ccLxjeix.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