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 '10.128.0.184' (ED25519) to the list of known hosts. 2026/06/10 10:06:50 parsed 1 programs [ 22.403194][ T24] audit: type=1400 audit(1781086010.390:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 22.412161][ T24] audit: type=1400 audit(1781086010.390:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 22.420680][ T24] audit: type=1400 audit(1781086010.390:66): avc: denied { module_request } for pid=287 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 23.065861][ T24] audit: type=1400 audit(1781086011.050:67): avc: denied { mounton } for pid=294 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 23.066814][ T294] cgroup: Unknown subsys name 'net' [ 23.088970][ T24] audit: type=1400 audit(1781086011.050:68): avc: denied { mount } for pid=294 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 23.117286][ T24] audit: type=1400 audit(1781086011.090:69): avc: denied { unmount } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 23.117500][ T294] cgroup: Unknown subsys name 'devices' [ 23.231009][ T294] cgroup: Unknown subsys name 'hugetlb' [ 23.236715][ T294] cgroup: Unknown subsys name 'rlimit' [ 23.379739][ T24] audit: type=1400 audit(1781086011.370:70): avc: denied { setattr } for pid=294 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 23.405181][ T24] audit: type=1400 audit(1781086011.370:71): avc: denied { create } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 23.412390][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 23.430183][ T24] audit: type=1400 audit(1781086011.370:72): avc: denied { write } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 23.464883][ T24] audit: type=1400 audit(1781086011.370:73): avc: denied { read } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 23.496035][ T294] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 24.034522][ T305] request_module fs-gadgetfs succeeded, but still no fs? [ 24.046670][ T307] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 24.356124][ T332] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.366514][ T332] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.374801][ T332] device bridge_slave_0 entered promiscuous mode [ 24.397910][ T332] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.415033][ T332] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.434672][ T332] device bridge_slave_1 entered promiscuous mode [ 24.553995][ T332] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.561273][ T332] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.568896][ T332] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.576151][ T332] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.620196][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.628187][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.637121][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.649992][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.658129][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.679049][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.688083][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.696581][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.705489][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.713988][ T332] device veth0_vlan entered promiscuous mode 2026/06/10 10:06:52 executed programs: 0 [ 24.730235][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.738827][ T332] device veth1_macvtap entered promiscuous mode [ 24.748677][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.759125][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 24.825126][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.832530][ T370] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.840193][ T370] device bridge_slave_0 entered promiscuous mode [ 24.847435][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.854806][ T370] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.862779][ T370] device bridge_slave_1 entered promiscuous mode [ 24.894486][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.901764][ T370] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.909090][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.916234][ T370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.934136][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.942202][ T348] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.950002][ T348] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.959152][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.968925][ T348] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.976205][ T348] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.985560][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.994192][ T348] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.001692][ T348] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.013872][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.023539][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.038622][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.050508][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.059501][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.067250][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.079663][ T370] device veth0_vlan entered promiscuous mode [ 25.089944][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.099788][ T370] device veth1_macvtap entered promiscuous mode [ 25.109993][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.120927][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 25.129425][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 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-build426725470=/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='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at d6526ea3e6a 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/cc2IHuBo.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