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 '10.128.1.181' (ED25519) to the list of known hosts. 2026/07/24 08:37:33 parsed 1 programs [ 24.796027][ T28] audit: type=1400 audit(1784882253.011:64): 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 [ 24.817298][ T28] audit: type=1400 audit(1784882253.021:65): 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 [ 25.928657][ T28] audit: type=1400 audit(1784882254.151:66): 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 [ 25.932139][ T387] cgroup: Unknown subsys name 'net' [ 25.952372][ T28] audit: type=1400 audit(1784882254.151:67): 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 [ 25.981224][ T28] audit: type=1400 audit(1784882254.181:68): 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 [ 25.981627][ T387] cgroup: Unknown subsys name 'devices' [ 26.128964][ T387] cgroup: Unknown subsys name 'hugetlb' [ 26.134645][ T387] cgroup: Unknown subsys name 'rlimit' [ 26.248173][ T28] audit: type=1400 audit(1784882254.471:69): 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 [ 26.271703][ T28] audit: type=1400 audit(1784882254.471:70): 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 [ 26.293120][ T28] audit: type=1400 audit(1784882254.471:71): 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 [ 26.314337][ T28] audit: type=1400 audit(1784882254.471:72): 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 [ 26.336758][ T28] audit: type=1400 audit(1784882254.471:73): 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 [ 26.348640][ T390] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.400720][ T387] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.207980][ T397] request_module fs-gadgetfs succeeded, but still no fs? [ 27.516404][ T415] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.523558][ T415] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.548118][ T415] device bridge_slave_0 entered promiscuous mode [ 27.587250][ T415] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.594771][ T415] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.602534][ T415] device bridge_slave_1 entered promiscuous mode [ 27.914330][ T415] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.921463][ T415] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.929189][ T415] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.936542][ T415] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.963080][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.972526][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.980580][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.988718][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.025231][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.034502][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.041878][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.056408][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.066621][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.074089][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.096009][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.105076][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.121793][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.142795][ T415] device veth0_vlan entered promiscuous mode [ 28.149538][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.158464][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.166188][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.190815][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.208034][ T415] device veth1_macvtap entered promiscuous mode [ 28.219712][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.246770][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/24 08:37:36 executed programs: 0 [ 28.398259][ T455] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.405578][ T455] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.413420][ T455] device bridge_slave_0 entered promiscuous mode [ 28.420643][ T455] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.428142][ T455] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.435595][ T455] device bridge_slave_1 entered promiscuous mode [ 28.520578][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 28.528217][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.538075][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 28.546877][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.555275][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.562455][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.570495][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 28.580065][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 28.588733][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.597490][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.604620][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.625909][ T455] device veth0_vlan entered promiscuous mode [ 28.639255][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.649027][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.657738][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.665555][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.673597][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.682247][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.694838][ T455] device veth1_macvtap entered promiscuous mode [ 28.704274][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.717889][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.726841][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 28.826351][ T415] syz-executor (415) used greatest stack depth: 22024 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-build1076440110=/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/ccLfhopj.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