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 '10.128.1.203' (ED25519) to the list of known hosts. 2026/03/02 16:16:56 parsed 1 programs [ 24.305258][ T28] audit: type=1400 audit(1772468216.959:64): 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 [ 24.326067][ T28] audit: type=1400 audit(1772468216.959:65): 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 [ 25.012674][ T28] audit: type=1400 audit(1772468217.669:66): avc: denied { mounton } for pid=292 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 [ 25.013820][ T292] cgroup: Unknown subsys name 'net' [ 25.035539][ T28] audit: type=1400 audit(1772468217.669:67): avc: denied { mount } for pid=292 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 [ 25.062798][ T28] audit: type=1400 audit(1772468217.699:68): avc: denied { unmount } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.062986][ T292] cgroup: Unknown subsys name 'devices' [ 25.202217][ T292] cgroup: Unknown subsys name 'hugetlb' [ 25.207837][ T292] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 25.317995][ T28] audit: type=1400 audit(1772468217.969:69): avc: denied { setattr } for pid=292 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 [ 25.341195][ T28] audit: type=1400 audit(1772468217.969:70): avc: denied { create } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.355073][ T294] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.361843][ T28] audit: type=1400 audit(1772468217.969:71): avc: denied { write } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.390490][ T28] audit: type=1400 audit(1772468217.969:72): avc: denied { read } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.395999][ T292] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.411089][ T28] audit: type=1400 audit(1772468217.969:73): avc: denied { mounton } for pid=292 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 [ 26.210472][ T300] request_module fs-gadgetfs succeeded, but still no fs? [ 26.731717][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.738787][ T319] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.746577][ T319] device bridge_slave_0 entered promiscuous mode [ 26.788877][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.796120][ T319] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.804655][ T319] device bridge_slave_1 entered promiscuous mode [ 26.811600][ T332] syz-executor (332) used greatest stack depth: 22080 bytes left [ 26.905597][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.912694][ T319] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.920001][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.927094][ T319] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.945233][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.952503][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.959779][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 26.967485][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.978941][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.987162][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.994366][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.001980][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.010128][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.017200][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.028780][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.038151][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.051511][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.062913][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.071015][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.078587][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.087047][ T319] device veth0_vlan entered promiscuous mode [ 27.097511][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready 2026/03/02 16:16:59 executed programs: 0 [ 27.106727][ T319] device veth1_macvtap entered promiscuous mode [ 27.116009][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.126234][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.194226][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.201362][ T367] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.208709][ T367] device bridge_slave_0 entered promiscuous mode [ 27.215605][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.222678][ T367] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.229981][ T367] device bridge_slave_1 entered promiscuous mode [ 27.271023][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.278067][ T367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.285352][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.292510][ T367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.311244][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.318965][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.326422][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.335340][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.344283][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.351415][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.367464][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.375721][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.382775][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.395248][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.409167][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.422730][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.438347][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.446643][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.454988][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.463383][ T367] device veth0_vlan entered promiscuous mode SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 27.474316][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.488080][ T367] device veth1_macvtap entered promiscuous mode [ 27.497565][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.507645][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.579967][ T319] syz-executor (319) used greatest stack depth: 21280 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-build2436468343=/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='go1.24.4' 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/ccyK1Ret.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