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 '10.128.1.43' (ED25519) to the list of known hosts. 2026/01/09 14:00:38 parsed 1 programs [ 71.952736][ T30] audit: type=1400 audit(1767967238.111:62): avc: denied { node_bind } for pid=5810 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 74.102528][ T30] audit: type=1400 audit(1767967240.261:63): avc: denied { mounton } for pid=5819 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 [ 74.126062][ T30] audit: type=1400 audit(1767967240.281:64): avc: denied { mount } for pid=5819 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 [ 74.129363][ T5819] cgroup: Unknown subsys name 'net' [ 74.155271][ T30] audit: type=1400 audit(1767967240.311:65): avc: denied { unmount } for pid=5819 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 74.284587][ T5819] cgroup: Unknown subsys name 'cpuset' [ 74.293071][ T5819] cgroup: Unknown subsys name 'rlimit' [ 74.438567][ T30] audit: type=1400 audit(1767967240.591:66): avc: denied { setattr } for pid=5819 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=820 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 74.472572][ T30] audit: type=1400 audit(1767967240.591:67): avc: denied { create } for pid=5819 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 74.494487][ T30] audit: type=1400 audit(1767967240.591:68): avc: denied { write } for pid=5819 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 74.524969][ T30] audit: type=1400 audit(1767967240.591:69): avc: denied { read } for pid=5819 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 74.547398][ T30] audit: type=1400 audit(1767967240.611:70): avc: denied { mounton } for pid=5819 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 [ 74.550751][ T5821] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 74.572801][ T30] audit: type=1400 audit(1767967240.611:71): avc: denied { mount } for pid=5819 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 75.617239][ T5819] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 77.456439][ T30] kauditd_printk_skb: 4 callbacks suppressed [ 77.456456][ T30] audit: type=1400 audit(1767967243.611:76): avc: denied { execmem } for pid=5830 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 77.500854][ T30] audit: type=1400 audit(1767967243.611:77): avc: denied { mounton } for pid=5830 comm="syz-executor" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 77.524959][ T30] audit: type=1400 audit(1767967243.611:78): avc: denied { mount } for pid=5830 comm="syz-executor" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 77.547436][ T30] audit: type=1400 audit(1767967243.611:79): avc: denied { read } for pid=5830 comm="syz-executor" dev="nsfs" ino=4026531833 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 77.568856][ T30] audit: type=1400 audit(1767967243.611:80): avc: denied { open } for pid=5830 comm="syz-executor" path="net:[4026531833]" dev="nsfs" ino=4026531833 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 77.592569][ T30] audit: type=1400 audit(1767967243.621:81): avc: denied { mounton } for pid=5830 comm="syz-executor" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 77.614068][ T30] audit: type=1400 audit(1767967243.731:82): avc: denied { mounton } for pid=5830 comm="syz-executor" path="/dev/binderfs" dev="devtmpfs" ino=2783 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 77.639693][ T30] audit: type=1400 audit(1767967243.731:83): avc: denied { mount } for pid=5830 comm="syz-executor" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 77.681989][ T30] audit: type=1401 audit(1767967243.731:84): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" [ 77.774083][ T30] audit: type=1400 audit(1767967243.931:85): avc: denied { mounton } for pid=5833 comm="syz-executor" path="/root/syzkaller.poWIpb/syz-tmp" dev="sda1" ino=2031 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 77.824108][ T5833] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 78.763527][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 78.773033][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 78.781142][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 78.791718][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 78.799336][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 79.096708][ T33] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.116910][ T33] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.153595][ T1006] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.164302][ T1006] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.650744][ T5902] chnl_net:caif_netlink_parms(): no params data found [ 80.728049][ T5902] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.735841][ T5902] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.743097][ T5902] bridge_slave_0: entered allmulticast mode [ 80.749944][ T5902] bridge_slave_0: entered promiscuous mode [ 80.760121][ T5902] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.767660][ T5902] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.774851][ T5902] bridge_slave_1: entered allmulticast mode [ 80.781586][ T5902] bridge_slave_1: entered promiscuous mode [ 80.827755][ T5902] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.852140][ T5902] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.878103][ T5902] team0: Port device team_slave_0 added [ 80.888376][ T5902] team0: Port device team_slave_1 added [ 80.910188][ T5902] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.917375][ T5902] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 80.943672][ T5902] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.956468][ T5902] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.963509][ T5902] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 80.989509][ T5902] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.032683][ T5902] hsr_slave_0: entered promiscuous mode [ 81.038815][ T5902] hsr_slave_1: entered promiscuous mode [ 81.154134][ T5902] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.166740][ T5902] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.176044][ T5902] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.185848][ T5902] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.244759][ T5902] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.264170][ T5902] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.275319][ T3902] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.282660][ T3902] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.297363][ T3788] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.304455][ T3788] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.459506][ T5902] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.511270][ T5902] veth0_vlan: entered promiscuous mode [ 81.525482][ T5902] veth1_vlan: entered promiscuous mode [ 81.567204][ T5902] veth0_macvtap: entered promiscuous mode [ 81.577855][ T5902] veth1_macvtap: entered promiscuous mode [ 81.599099][ T5902] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.615161][ T5902] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.636146][ T33] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.653108][ T33] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.676160][ T33] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.686542][ T33] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.786926][ T1006] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.843712][ T1006] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.910327][ T1006] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.976064][ T1006] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/01/09 14:00:48 executed programs: 0 [ 82.182097][ T5139] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 82.189988][ T5139] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 82.199338][ T5139] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 82.207532][ T5139] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 82.215682][ T5139] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 82.341082][ T5928] chnl_net:caif_netlink_parms(): no params data found [ 82.396270][ T5928] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.403501][ T5928] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.410771][ T5928] bridge_slave_0: entered allmulticast mode [ 82.420349][ T5928] bridge_slave_0: entered promiscuous mode [ 82.427872][ T5928] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.435040][ T5928] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.442563][ T5928] bridge_slave_1: entered allmulticast mode [ 82.449311][ T5928] bridge_slave_1: entered promiscuous mode [ 82.478869][ T5928] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.490640][ T5928] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.517117][ T5928] team0: Port device team_slave_0 added [ 82.525130][ T5928] team0: Port device team_slave_1 added [ 82.550079][ T5928] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.557114][ T5928] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 82.583877][ T5928] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.595746][ T5928] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.602931][ T5928] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 82.628912][ T5928] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.671793][ T5928] hsr_slave_0: entered promiscuous mode [ 82.678022][ T5928] hsr_slave_1: entered promiscuous mode [ 82.684504][ T5928] debugfs: 'hsr0' already exists in 'hsr' [ 82.690288][ T5928] Cannot create hsr debugfs directory [ 84.282562][ T5139] Bluetooth: hci0: command tx timeout [ 84.560055][ T1006] bridge_slave_1: left allmulticast mode [ 84.566302][ T1006] bridge_slave_1: left promiscuous mode [ 84.572786][ T1006] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.588775][ T1006] bridge_slave_0: left allmulticast mode [ 84.598830][ T1006] bridge_slave_0: left promiscuous mode [ 84.605420][ T1006] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.863761][ T1006] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.875869][ T1006] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.886613][ T1006] bond0 (unregistering): Released all slaves [ 84.968432][ T1006] hsr_slave_0: left promiscuous mode [ 84.974559][ T1006] hsr_slave_1: left promiscuous mode [ 84.980309][ T1006] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 84.987824][ T1006] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 84.998689][ T1006] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.006528][ T1006] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.021183][ T1006] veth1_macvtap: left promiscuous mode [ 85.026992][ T1006] veth0_macvtap: left promiscuous mode [ 85.032723][ T1006] veth1_vlan: left promiscuous mode [ 85.038030][ T1006] veth0_vlan: left promiscuous mode [ 85.279329][ T1006] team0 (unregistering): Port device team_slave_1 removed [ 85.304779][ T1006] team0 (unregistering): Port device team_slave_0 removed [ 85.757790][ T5928] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.774278][ T5928] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.785337][ T5928] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.800739][ T5928] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.960843][ T5928] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.998313][ T5928] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.015833][ T4277] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.022983][ T4277] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.039010][ T33] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.046163][ T33] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.259804][ T5928] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.309156][ T5928] veth0_vlan: entered promiscuous mode [ 86.320877][ T5928] veth1_vlan: entered promiscuous mode [ 86.359075][ T5928] veth0_macvtap: entered promiscuous mode [ 86.365531][ T5139] Bluetooth: hci0: command tx timeout [ 86.377317][ T5928] veth1_macvtap: entered promiscuous mode [ 86.397993][ T5928] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.413531][ T5928] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.431146][ T33] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.444033][ T33] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.459394][ T33] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.473062][ T33] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.524714][ T24] cfg80211: failed to load regulatory.db [ 86.524756][ T3788] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.541357][ T3788] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.570382][ T33] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.578551][ T33] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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-build2351158672=/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 d6526ea3e 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/cc61W2B9.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