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 '10.128.1.145' (ED25519) to the list of known hosts. 2026/09/20 03:56:09 parsed 1 programs [ 33.390728][ T28] audit: type=1400 audit(1789876569.223:64): avc: denied { node_bind } for pid=379 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 33.412008][ T28] audit: type=1400 audit(1789876569.223:65): avc: denied { module_request } for pid=379 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 [ 34.521309][ T28] audit: type=1400 audit(1789876570.353:66): avc: denied { mounton } for pid=387 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 [ 34.525210][ T387] cgroup: Unknown subsys name 'net' [ 34.544776][ T28] audit: type=1400 audit(1789876570.353:67): avc: denied { mount } for pid=387 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 [ 34.575244][ T28] audit: type=1400 audit(1789876570.383:68): avc: denied { unmount } for pid=387 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 34.575689][ T387] cgroup: Unknown subsys name 'devices' [ 34.725700][ T387] cgroup: Unknown subsys name 'hugetlb' [ 34.731399][ T387] cgroup: Unknown subsys name 'rlimit' [ 34.844931][ T28] audit: type=1400 audit(1789876570.683:69): avc: denied { setattr } for pid=387 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 [ 34.869190][ T28] audit: type=1400 audit(1789876570.683:70): avc: denied { create } for pid=387 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 34.890138][ T28] audit: type=1400 audit(1789876570.683:71): avc: denied { write } for pid=387 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 34.911336][ T28] audit: type=1400 audit(1789876570.683:72): avc: denied { read } for pid=387 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 [ 34.932765][ T28] audit: type=1400 audit(1789876570.683:73): avc: denied { mounton } for pid=387 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 [ 34.946815][ T390] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 34.983001][ T387] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 35.744193][ T398] request_module fs-gadgetfs succeeded, but still no fs? [ 36.431813][ T433] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.444293][ T433] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.473978][ T433] device bridge_slave_0 entered promiscuous mode [ 36.481472][ T433] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.488916][ T433] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.496688][ T433] device bridge_slave_1 entered promiscuous mode [ 36.596439][ T433] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.604255][ T433] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.612624][ T433] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.620264][ T433] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.643951][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 36.651666][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.659131][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.668304][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 36.677259][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.684417][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.694269][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 36.703076][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.710208][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.723896][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 36.734611][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 36.748573][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 36.761779][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 36.770613][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 36.778504][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 36.788017][ T433] device veth0_vlan entered promiscuous mode 2026/09/20 03:56:12 executed programs: 0 [ 36.799685][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 36.809511][ T433] device veth1_macvtap entered promiscuous mode [ 36.820049][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 36.832145][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 36.933674][ T456] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.941538][ T456] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.949272][ T456] device bridge_slave_0 entered promiscuous mode [ 36.963277][ T456] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.971454][ T456] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.981084][ T456] device bridge_slave_1 entered promiscuous mode [ 37.043314][ T456] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.051297][ T456] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.059006][ T456] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.066610][ T456] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.097592][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.105735][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.113918][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.130846][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.139938][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.147211][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.157889][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 37.166684][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.175362][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.182664][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.200177][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 37.208480][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.218214][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 37.226750][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.241489][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 37.250610][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.268245][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 37.276509][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.285784][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 37.294035][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 37.302724][ T456] device veth0_vlan entered promiscuous mode [ 37.318255][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 37.327079][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.336939][ T456] device veth1_macvtap entered promiscuous mode [ 37.347249][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 37.356095][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 37.364940][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.374868][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 37.383611][ T10] 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) [ 37.466030][ T433] syz-executor (433) used greatest stack depth: 22112 bytes left 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-build3608325126=/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 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/ccTlgdtG.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