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 '10.128.1.216' (ED25519) to the list of known hosts. 2025/12/14 07:29:44 parsed 1 programs [ 24.214157][ T28] audit: type=1400 audit(1765697384.541:64): avc: denied { node_bind } for pid=283 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.235107][ T28] audit: type=1400 audit(1765697384.551:65): avc: denied { module_request } for pid=283 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 [ 25.359006][ T28] audit: type=1400 audit(1765697385.691:66): avc: denied { mounton } for pid=291 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 25.360329][ T291] cgroup: Unknown subsys name 'net' [ 25.381818][ T28] audit: type=1400 audit(1765697385.691:67): avc: denied { mount } for pid=291 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 [ 25.409139][ T28] audit: type=1400 audit(1765697385.731:68): avc: denied { unmount } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.409363][ T291] cgroup: Unknown subsys name 'devices' [ 25.556335][ T291] cgroup: Unknown subsys name 'hugetlb' [ 25.561962][ T291] cgroup: Unknown subsys name 'rlimit' [ 25.675981][ T28] audit: type=1400 audit(1765697386.011:69): avc: denied { setattr } for pid=291 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 25.699181][ T28] audit: type=1400 audit(1765697386.011:70): avc: denied { create } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.717114][ T295] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.720055][ T28] audit: type=1400 audit(1765697386.011:71): avc: denied { write } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.748678][ T28] audit: type=1400 audit(1765697386.011:72): avc: denied { read } for pid=291 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 [ 25.768987][ T28] audit: type=1400 audit(1765697386.011:73): avc: denied { mounton } for pid=291 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 25.773818][ T291] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.527644][ T301] request_module fs-gadgetfs succeeded, but still no fs? [ 26.840291][ T311] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.862106][ T311] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.883507][ T311] device bridge_slave_0 entered promiscuous mode [ 26.897000][ T311] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.904932][ T311] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.912596][ T311] device bridge_slave_1 entered promiscuous mode [ 27.205194][ T333] syz-executor (333) used greatest stack depth: 22208 bytes left [ 27.277195][ T311] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.284751][ T311] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.292268][ T311] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.299393][ T311] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.346930][ T316] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.360645][ T316] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.370259][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.379338][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.395388][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.403945][ T316] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.411429][ T316] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.419979][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.429176][ T316] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.436277][ T316] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.454332][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.462457][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.474598][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.496331][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.505095][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.512756][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.521537][ T311] device veth0_vlan entered promiscuous mode [ 27.542348][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready 2025/12/14 07:29:47 executed programs: 0 [ 27.552452][ T311] device veth1_macvtap entered promiscuous mode [ 27.563143][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.586119][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.629372][ T311] syz-executor (311) used greatest stack depth: 22016 bytes left [ 27.686547][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.693682][ T367] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.701322][ T367] device bridge_slave_0 entered promiscuous mode [ 27.708667][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.715898][ T367] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.723285][ T367] device bridge_slave_1 entered promiscuous mode [ 27.804077][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.812483][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.821586][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.830152][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.839441][ T316] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.846509][ T316] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.854504][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 27.870893][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.879348][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.888183][ T316] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.895255][ T316] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.913001][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 27.921408][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.930996][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 27.939269][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.960929][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 27.969492][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.980938][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 27.988996][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.997684][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.005276][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.013525][ T367] device veth0_vlan entered promiscuous mode [ 28.025874][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 28.034594][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.043799][ T367] device veth1_macvtap entered promiscuous mode [ 28.056068][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 28.063816][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 28.072279][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.081909][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 28.090485][ T316] 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-build3676739758=/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/cc40hzhf.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