SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) cess permissive=1 [ 15.291851][ T30] audit: type=1400 audit(1780941748.869:63): avc: denied { siginh } for pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 17.937233][ T281] scp (281) used greatest stack depth: 21536 bytes left Warning: Permanently added '10.128.0.41' (ED25519) to the list of known hosts. 2026/06/08 18:02:38 parsed 1 programs [ 25.033593][ T30] audit: type=1400 audit(1780941758.619:64): avc: denied { node_bind } for pid=293 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 25.054756][ T30] audit: type=1400 audit(1780941758.619:65): avc: denied { module_request } for pid=293 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 [ 25.650521][ T30] audit: type=1400 audit(1780941759.239:66): avc: denied { mounton } for pid=302 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 [ 25.651620][ T302] cgroup: Unknown subsys name 'net' [ 25.674698][ T30] audit: type=1400 audit(1780941759.239:67): avc: denied { mount } for pid=302 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 [ 25.703641][ T30] audit: type=1400 audit(1780941759.269:68): avc: denied { unmount } for pid=302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.703821][ T302] cgroup: Unknown subsys name 'devices' [ 25.849263][ T302] cgroup: Unknown subsys name 'hugetlb' [ 25.855593][ T302] cgroup: Unknown subsys name 'rlimit' [ 26.056775][ T30] audit: type=1400 audit(1780941759.639:69): avc: denied { setattr } for pid=302 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 [ 26.073676][ T304] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.081143][ T30] audit: type=1400 audit(1780941759.649:70): avc: denied { create } for pid=302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.113839][ T30] audit: type=1400 audit(1780941759.649:71): avc: denied { write } for pid=302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.135308][ T30] audit: type=1400 audit(1780941759.649:72): avc: denied { read } for pid=302 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 [ 26.156478][ T30] audit: type=1400 audit(1780941759.649:73): avc: denied { mounton } for pid=302 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 [ 26.162735][ T302] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.756318][ T312] request_module fs-gadgetfs succeeded, but still no fs? [ 27.133819][ T347] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.141668][ T347] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.149533][ T347] device bridge_slave_0 entered promiscuous mode [ 27.156748][ T347] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.164207][ T347] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.171774][ T347] device bridge_slave_1 entered promiscuous mode [ 27.258816][ T347] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.266602][ T347] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.274222][ T347] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.281306][ T347] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.303728][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.311794][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.319752][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.328822][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.339297][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.347987][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.355186][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.363833][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.372280][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.379418][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.391660][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.401350][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.414170][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.425988][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.434592][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.443415][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.452369][ T347] device veth0_vlan entered promiscuous mode 2026/06/08 18:02:41 executed programs: 0 [ 27.463886][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.473693][ T347] device veth1_macvtap entered promiscuous mode [ 27.483665][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.494027][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.559214][ T371] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.566998][ T371] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.575018][ T371] device bridge_slave_0 entered promiscuous mode [ 27.582456][ T371] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.590535][ T371] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.598694][ T371] device bridge_slave_1 entered promiscuous mode [ 27.635891][ T371] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.643875][ T371] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.652557][ T371] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.659809][ T371] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.676415][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.684886][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.692512][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.703144][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.711559][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.718622][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.727746][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.736338][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.745875][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.759169][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.769085][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.784808][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.798838][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.807744][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.815813][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.824608][ T371] device veth0_vlan entered promiscuous mode [ 27.834382][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.848298][ T371] device veth1_macvtap entered promiscuous mode [ 27.858042][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.868356][ T8] 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) [ 27.945376][ T347] syz-executor (347) used greatest stack depth: 20352 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-build3776988465=/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/ccVC2mMg.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