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 '10.128.1.64' (ED25519) to the list of known hosts. 2026/04/14 00:30:03 parsed 1 programs [ 27.941645][ T30] audit: type=1400 audit(1776126603.741:61): avc: denied { node_bind } for pid=283 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 27.963054][ T30] audit: type=1400 audit(1776126603.741:62): avc: denied { module_request } for pid=283 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 [ 28.796037][ T30] audit: type=1400 audit(1776126604.591:63): avc: denied { mounton } for pid=291 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 [ 28.819157][ T30] audit: type=1400 audit(1776126604.621:64): avc: denied { mount } for pid=291 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 [ 28.820143][ T291] cgroup: Unknown subsys name 'net' [ 28.847726][ T30] audit: type=1400 audit(1776126604.641:65): avc: denied { unmount } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 28.847841][ T291] cgroup: Unknown subsys name 'devices' [ 28.969017][ T291] cgroup: Unknown subsys name 'cpuset' [ 28.975061][ T291] cgroup: Unknown subsys name 'hugetlb' [ 28.980958][ T291] cgroup: Unknown subsys name 'rlimit' [ 28.986588][ T291] cgroup: Unknown subsys name 'memory' [ 29.080706][ T30] audit: type=1400 audit(1776126604.881:66): avc: denied { setattr } for pid=291 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 [ 29.104258][ T30] audit: type=1400 audit(1776126604.881:67): avc: denied { create } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 29.116845][ T293] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 29.124804][ T30] audit: type=1400 audit(1776126604.881:68): avc: denied { write } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 29.153812][ T30] audit: type=1400 audit(1776126604.881:69): avc: denied { read } for pid=291 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 [ 29.174238][ T30] audit: type=1400 audit(1776126604.881:70): avc: denied { mounton } for pid=291 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 [ 29.195305][ T291] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 29.994288][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 30.632089][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.639340][ T341] bridge0: port 1(bridge_slave_0) entered disabled state [ 30.646627][ T341] bridge_slave_0: entered allmulticast mode [ 30.653352][ T341] bridge_slave_0: entered promiscuous mode [ 30.660206][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.667392][ T341] bridge0: port 2(bridge_slave_1) entered disabled state [ 30.675613][ T341] bridge_slave_1: entered allmulticast mode [ 30.682447][ T341] bridge_slave_1: entered promiscuous mode [ 30.757705][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.764961][ T341] bridge0: port 2(bridge_slave_1) entered forwarding state [ 30.772349][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.779660][ T341] bridge0: port 1(bridge_slave_0) entered forwarding state [ 30.798226][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 30.805537][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 30.816634][ T38] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.823759][ T38] bridge0: port 1(bridge_slave_0) entered forwarding state [ 30.832868][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.840119][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state 2026/04/14 00:30:06 executed programs: 0 [ 30.862904][ T341] veth0_vlan: entered promiscuous mode [ 30.873274][ T341] veth1_macvtap: entered promiscuous mode [ 30.955480][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.963442][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 30.971449][ T365] bridge_slave_0: entered allmulticast mode [ 30.977836][ T365] bridge_slave_0: entered promiscuous mode [ 30.984442][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.992704][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 30.999937][ T365] bridge_slave_1: entered allmulticast mode [ 31.006289][ T365] bridge_slave_1: entered promiscuous mode [ 31.051172][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.058337][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.065672][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.072746][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.093799][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.101019][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.110522][ T333] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.117568][ T333] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.126596][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.133688][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.157136][ T365] veth0_vlan: entered promiscuous mode [ 31.167444][ T365] veth1_macvtap: entered promiscuous mode SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 31.273624][ T341] syz-executor (341) used greatest stack depth: 20288 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-build77014135=/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 a6c9c731229 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=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./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=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" -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=\"a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea\" /usr/bin/ld: /tmp/ccMXRBsg.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