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 '10.128.1.133' (ED25519) to the list of known hosts. 2026/06/09 14:31:54 parsed 1 programs [ 23.987534][ T28] audit: type=1400 audit(1781015514.331:64): avc: denied { node_bind } for pid=294 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.008853][ T28] audit: type=1400 audit(1781015514.331:65): avc: denied { module_request } for pid=294 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 [ 24.713624][ T28] audit: type=1400 audit(1781015515.061:66): 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 [ 24.714702][ T302] cgroup: Unknown subsys name 'net' [ 24.742074][ T28] audit: type=1400 audit(1781015515.061:67): 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 [ 24.764678][ T28] audit: type=1400 audit(1781015515.091:68): 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 [ 24.764839][ T302] cgroup: Unknown subsys name 'devices' [ 24.874026][ T302] cgroup: Unknown subsys name 'hugetlb' [ 24.879863][ T302] cgroup: Unknown subsys name 'rlimit' [ 25.017167][ T28] audit: type=1400 audit(1781015515.361:69): avc: denied { setattr } for pid=302 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 [ 25.040687][ T28] audit: type=1400 audit(1781015515.361:70): 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 [ 25.049303][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.061716][ T28] audit: type=1400 audit(1781015515.361:71): 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 [ 25.091288][ T28] audit: type=1400 audit(1781015515.361:72): 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 [ 25.111897][ T28] audit: type=1400 audit(1781015515.361:73): 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 [ 25.134533][ T302] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.857619][ T311] request_module fs-gadgetfs succeeded, but still no fs? [ 26.161495][ T328] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.172834][ T328] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.180548][ T328] device bridge_slave_0 entered promiscuous mode [ 26.212715][ T328] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.219843][ T328] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.227396][ T328] device bridge_slave_1 entered promiscuous mode [ 26.486580][ T328] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.493859][ T328] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.502175][ T328] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.509326][ T328] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.568814][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.577962][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.586312][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 26.594030][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.612868][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.621338][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.628794][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.637113][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.645709][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.653129][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.660713][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.669214][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.683899][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.695094][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.703869][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.711572][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready 2026/06/09 14:31:57 executed programs: 0 [ 26.720288][ T328] device veth0_vlan entered promiscuous mode [ 26.729992][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.740329][ T328] device veth1_macvtap entered promiscuous mode [ 26.751036][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.761202][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.800012][ T328] syz-executor (328) used greatest stack depth: 20832 bytes left [ 26.837204][ T373] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.844843][ T373] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.853166][ T373] device bridge_slave_0 entered promiscuous mode [ 26.860307][ T373] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.867431][ T373] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.874919][ T373] device bridge_slave_1 entered promiscuous mode [ 26.917290][ T373] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.924627][ T373] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.932376][ T373] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.939690][ T373] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.958410][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.966092][ T341] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.973529][ T341] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.984343][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.992657][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.999926][ T341] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.009471][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.017844][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.024886][ T341] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.037296][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.047404][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.060674][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.072072][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.080625][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.088481][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.097171][ T373] device veth0_vlan entered promiscuous mode [ 27.107184][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 27.115878][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.129093][ T373] device veth1_macvtap entered promiscuous mode [ 27.139140][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 27.147293][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 27.155759][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.165320][ T341] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 27.173825][ T341] 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-build2311668426=/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 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/ccShhnJ0.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