SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.454259][ T30] audit: type=1400 audit(1765692373.995:63): avc: denied { siginh } for pid=265 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.88' (ED25519) to the list of known hosts. 2025/12/14 06:06:23 parsed 1 programs [ 32.686729][ T30] audit: type=1400 audit(1765692383.245:64): avc: denied { node_bind } for pid=281 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 32.707578][ T30] audit: type=1400 audit(1765692383.245:65): avc: denied { module_request } for pid=281 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 [ 33.345202][ T30] audit: type=1400 audit(1765692383.905:66): avc: denied { mounton } for pid=290 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 [ 33.346481][ T290] cgroup: Unknown subsys name 'net' [ 33.367836][ T30] audit: type=1400 audit(1765692383.905:67): avc: denied { mount } for pid=290 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 [ 33.395816][ T30] audit: type=1400 audit(1765692383.955:68): avc: denied { unmount } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 33.395955][ T290] cgroup: Unknown subsys name 'devices' [ 33.603095][ T290] cgroup: Unknown subsys name 'hugetlb' [ 33.608676][ T290] cgroup: Unknown subsys name 'rlimit' [ 33.839026][ T30] audit: type=1400 audit(1765692384.395:69): avc: denied { setattr } for pid=290 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 [ 33.862373][ T30] audit: type=1400 audit(1765692384.395:70): avc: denied { create } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 33.882791][ T30] audit: type=1400 audit(1765692384.395:71): avc: denied { write } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 33.888219][ T292] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 33.903074][ T30] audit: type=1400 audit(1765692384.395:72): avc: denied { read } for pid=290 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 [ 33.931835][ T30] audit: type=1400 audit(1765692384.395:73): avc: denied { mounton } for pid=290 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 [ 33.959686][ T290] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 34.410447][ T300] request_module fs-gadgetfs succeeded, but still no fs? [ 34.493586][ T298] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.500635][ T298] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.517750][ T298] device bridge_slave_0 entered promiscuous mode [ 34.542679][ T298] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.550637][ T298] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.561012][ T298] device bridge_slave_1 entered promiscuous mode [ 34.885118][ T298] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.892162][ T298] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.899402][ T298] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.906418][ T298] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.962550][ T338] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.973464][ T338] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.980817][ T338] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 34.993384][ T338] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.022515][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 35.030668][ T360] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.037716][ T360] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.045287][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 35.053935][ T360] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.060968][ T360] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.068559][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 35.088763][ T298] device veth0_vlan entered promiscuous mode [ 35.100287][ T298] device veth1_macvtap entered promiscuous mode [ 35.107706][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 35.116392][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 35.125546][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 35.133276][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 35.140823][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 35.149081][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 35.164794][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready 2025/12/14 06:06:25 executed programs: 0 [ 35.173240][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 35.209703][ T298] syz-executor (298) used greatest stack depth: 19840 bytes left [ 35.240576][ T364] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.247653][ T364] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.254972][ T364] device bridge_slave_0 entered promiscuous mode [ 35.261801][ T364] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.268814][ T364] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.276186][ T364] device bridge_slave_1 entered promiscuous mode [ 35.313851][ T364] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.320970][ T364] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.328225][ T364] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.335242][ T364] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.352677][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.360262][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.367502][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.376236][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 35.384521][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.391639][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.400257][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 35.408636][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 35.416790][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.423816][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.434431][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 35.442505][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 35.451603][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 35.459616][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 35.472773][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 35.481143][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 35.492508][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 35.500402][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 35.508407][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 35.516448][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 35.524447][ T364] device veth0_vlan entered promiscuous mode [ 35.533759][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 35.541915][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 35.550684][ T364] device veth1_macvtap entered promiscuous mode [ 35.559409][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 35.567206][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 35.575495][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 35.585854][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 35.594201][ T10] 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-build1344355003=/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 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/cc6xdnEN.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): 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