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 '10.128.1.172' (ED25519) to the list of known hosts. 2026/03/30 15:27:42 parsed 1 programs [ 21.309109][ T29] audit: type=1400 audit(1774884462.138:64): avc: denied { node_bind } for pid=361 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 21.334410][ T29] audit: type=1400 audit(1774884462.138:65): avc: denied { module_request } for pid=361 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 [ 21.925854][ T29] audit: type=1400 audit(1774884462.748:66): avc: denied { mounton } for pid=369 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 [ 21.927165][ T369] cgroup: Unknown subsys name 'net' [ 21.950483][ T29] audit: type=1400 audit(1774884462.748:67): avc: denied { mount } for pid=369 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 [ 21.979128][ T29] audit: type=1400 audit(1774884462.778:68): avc: denied { unmount } for pid=369 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 21.979516][ T369] cgroup: Unknown subsys name 'devices' [ 22.120158][ T369] cgroup: Unknown subsys name 'hugetlb' [ 22.126340][ T369] cgroup: Unknown subsys name 'rlimit' [ 22.297934][ T29] audit: type=1400 audit(1774884463.118:69): avc: denied { setattr } for pid=369 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 [ 22.325241][ T29] audit: type=1400 audit(1774884463.118:70): avc: denied { create } for pid=369 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 [ 22.348335][ T29] audit: type=1400 audit(1774884463.128:71): avc: denied { write } for pid=369 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.354093][ T373] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 22.371870][ T29] audit: type=1400 audit(1774884463.128:72): avc: denied { read } for pid=369 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.403811][ T29] audit: type=1400 audit(1774884463.128:73): avc: denied { mounton } for pid=369 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 [ 22.440359][ T369] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 22.901245][ T380] request_module fs-gadgetfs succeeded, but still no fs? [ 23.202966][ T397] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.217836][ T397] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.227770][ T397] device bridge_slave_0 entered promiscuous mode [ 23.237128][ T397] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.246085][ T397] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.254270][ T397] device bridge_slave_1 entered promiscuous mode [ 23.471584][ T397] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.479239][ T397] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.487165][ T397] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.495914][ T397] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.521430][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.530996][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.539659][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 23.547558][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.572987][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 23.581870][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.590046][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.598737][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 23.607034][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.614977][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.637562][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 23.646272][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 23.660785][ T397] device veth0_vlan entered promiscuous mode [ 23.668330][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 23.679111][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready 2026/03/30 15:27:44 executed programs: 0 [ 23.688664][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 23.697783][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 23.710785][ T397] device veth1_macvtap entered promiscuous mode [ 23.720694][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 23.735273][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 23.746023][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 23.813192][ T439] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.821617][ T439] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.831136][ T439] device bridge_slave_0 entered promiscuous mode [ 23.838989][ T439] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.846587][ T439] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.854845][ T439] device bridge_slave_1 entered promiscuous mode [ 23.895487][ T439] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.902937][ T439] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.910719][ T439] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.919177][ T439] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.937636][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.946510][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.954628][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.965464][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 23.975094][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.982512][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.992330][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.001697][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.009811][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.028870][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.039265][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.056815][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.068875][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.077127][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.085427][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.099440][ T439] device veth0_vlan entered promiscuous mode [ 24.109935][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.120702][ T439] device veth1_macvtap entered promiscuous mode [ 24.130869][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 24.139986][ T9] 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) [ 24.150739][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 24.159950][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 24.239086][ T397] syz-executor (397) used greatest stack depth: 21664 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-build3839582551=/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 4e1406b4def 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=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" ./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=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" -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=\"4e1406b4defac0e2a9d9424c70706f79a7750cf3\" /usr/bin/ld: /tmp/cc2NaHZa.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