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 '10.128.1.174' (ED25519) to the list of known hosts. 2026/04/19 12:24:18 parsed 1 programs [ 26.185633][ T30] audit: type=1400 audit(1776601458.588:64): avc: denied { node_bind } for pid=281 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 26.208605][ T30] audit: type=1400 audit(1776601458.588:65): avc: denied { module_request } for pid=281 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 [ 26.877002][ T30] audit: type=1400 audit(1776601459.278:66): avc: denied { mounton } for pid=288 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 [ 26.878756][ T288] cgroup: Unknown subsys name 'net' [ 26.902116][ T30] audit: type=1400 audit(1776601459.278:67): avc: denied { mount } for pid=288 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 [ 26.935495][ T30] audit: type=1400 audit(1776601459.308:68): avc: denied { unmount } for pid=288 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 26.935743][ T288] cgroup: Unknown subsys name 'devices' [ 27.081235][ T288] cgroup: Unknown subsys name 'hugetlb' [ 27.089127][ T288] cgroup: Unknown subsys name 'rlimit' [ 27.229220][ T30] audit: type=1400 audit(1776601459.638:69): avc: denied { setattr } for pid=288 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 27.256520][ T30] audit: type=1400 audit(1776601459.638:70): avc: denied { create } for pid=288 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.279854][ T30] audit: type=1400 audit(1776601459.638:71): avc: denied { write } for pid=288 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.286730][ T291] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 27.304345][ T30] audit: type=1400 audit(1776601459.638:72): avc: denied { read } for pid=288 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.339207][ T30] audit: type=1400 audit(1776601459.638:73): avc: denied { mounton } for pid=288 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 [ 27.379238][ T288] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.813448][ T293] request_module fs-gadgetfs succeeded, but still no fs? [ 28.226752][ T326] syz-executor (326) used greatest stack depth: 21504 bytes left [ 28.242807][ T330] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.250676][ T330] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.258276][ T330] device bridge_slave_0 entered promiscuous mode [ 28.265585][ T330] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.273005][ T330] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.281461][ T330] device bridge_slave_1 entered promiscuous mode [ 28.323470][ T330] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.330943][ T330] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.339067][ T330] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.346489][ T330] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.364770][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.373127][ T308] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.381893][ T308] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.397760][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.406224][ T308] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.413890][ T308] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.422139][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.431305][ T308] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.439164][ T308] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.446820][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.455605][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.468362][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.483884][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.492388][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.501225][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.509802][ T330] device veth0_vlan entered promiscuous mode [ 28.523203][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.534458][ T330] device veth1_macvtap entered promiscuous mode [ 28.544046][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.559384][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.593958][ T330] syz-executor (330) used greatest stack depth: 21016 bytes left 2026/04/19 12:24:21 executed programs: 0 [ 29.005802][ T353] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.014982][ T353] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.024642][ T353] device bridge_slave_0 entered promiscuous mode [ 29.035137][ T353] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.043383][ T353] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.051905][ T353] device bridge_slave_1 entered promiscuous mode [ 29.092468][ T353] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.100540][ T353] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.109792][ T353] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.117870][ T353] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.142884][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.153029][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.168398][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.182061][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.192065][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.201190][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.216173][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 29.227553][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.239368][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.247909][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.264158][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 29.272489][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.282413][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 29.291875][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.308996][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 29.318117][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.331440][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 29.344060][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.354929][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.367041][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.381876][ T353] device veth0_vlan entered promiscuous mode [ 29.392848][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 29.403560][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.414714][ T353] device veth1_macvtap entered promiscuous mode [ 29.427205][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 29.435534][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 29.446632][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.460379][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 29.469882][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 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-build742942347=/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 07e030dea6 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=07e030dea6e6d9ca88b75bb3be2810f47083b328 -X github.com/google/syzkaller/prog.gitRevisionDate=20251112-115923" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=07e030dea6e6d9ca88b75bb3be2810f47083b328 -X github.com/google/syzkaller/prog.gitRevisionDate=20251112-115923" ./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=07e030dea6e6d9ca88b75bb3be2810f47083b328 -X github.com/google/syzkaller/prog.gitRevisionDate=20251112-115923" -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=\"07e030dea6e6d9ca88b75bb3be2810f47083b328\" /usr/bin/ld: /tmp/ccavqBt3.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