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 '[localhost]:22705' (ED25519) to the list of known hosts. 2026/02/03 07:31:53 parsed 1 programs syzkaller login: [ 89.111313][ T5307] cgroup: Unknown subsys name 'net' [ 89.175598][ T5307] cgroup: Unknown subsys name 'cpuset' [ 89.181073][ T5307] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.113848][ T5307] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 96.992816][ T1239] cfg80211: failed to load regulatory.db [ 97.780067][ T5325] 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. [ 102.454791][ T5373] chnl_net:caif_netlink_parms(): no params data found [ 102.605780][ T5373] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.609147][ T5373] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.622088][ T5373] bridge_slave_0: entered allmulticast mode [ 102.632539][ T5373] bridge_slave_0: entered promiscuous mode [ 102.638628][ T5373] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.642903][ T5373] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.646061][ T5373] bridge_slave_1: entered allmulticast mode [ 102.662859][ T5373] bridge_slave_1: entered promiscuous mode [ 102.706666][ T5373] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 102.723686][ T5373] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 102.775559][ T5373] team0: Port device team_slave_0 added [ 102.780059][ T5373] team0: Port device team_slave_1 added [ 102.825521][ T5373] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 102.828611][ T5373] 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. [ 102.852378][ T5373] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 102.872718][ T5373] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 102.875944][ T5373] 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. [ 102.903112][ T5373] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 102.980224][ T5373] hsr_slave_0: entered promiscuous mode [ 102.993695][ T5373] hsr_slave_1: entered promiscuous mode [ 103.297298][ T5373] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 103.316296][ T5373] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 103.325133][ T5373] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 103.343781][ T5373] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 103.496277][ T5373] 8021q: adding VLAN 0 to HW filter on device bond0 [ 103.528572][ T5373] 8021q: adding VLAN 0 to HW filter on device team0 [ 103.556239][ T55] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.559503][ T55] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.578693][ T1048] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.581900][ T1048] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.887911][ T5373] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 103.958291][ T5373] veth0_vlan: entered promiscuous mode [ 103.979799][ T5373] veth1_vlan: entered promiscuous mode [ 104.049028][ T5373] veth0_macvtap: entered promiscuous mode [ 104.065124][ T5373] veth1_macvtap: entered promiscuous mode [ 104.104077][ T5373] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 104.125688][ T5373] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 104.148381][ T1048] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.153293][ T1048] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.157118][ T1048] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.161022][ T1048] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.464539][ T55] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 104.614425][ T55] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 104.716770][ T55] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.500368][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 105.504805][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 105.508307][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 105.511911][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 105.515913][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 105.686208][ T55] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 106.110151][ T1048] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.116024][ T1048] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.185145][ T1044] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.189500][ T1044] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.052091][ T55] bridge_slave_1: left allmulticast mode [ 107.055390][ T55] bridge_slave_1: left promiscuous mode [ 107.071046][ T55] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.090966][ T55] bridge_slave_0: left allmulticast mode [ 107.099400][ T55] bridge_slave_0: left promiscuous mode [ 107.102113][ T55] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.504464][ T55] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 107.510373][ T55] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 107.519735][ T55] bond0 (unregistering): Released all slaves [ 107.612520][ T55] hsr_slave_0: left promiscuous mode [ 107.632544][ T55] hsr_slave_1: left promiscuous mode [ 107.640109][ T55] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 107.655874][ T55] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 107.672421][ T55] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 107.680786][ T55] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 107.725463][ T55] veth1_macvtap: left promiscuous mode [ 107.728040][ T55] veth0_macvtap: left promiscuous mode [ 107.730692][ T55] veth1_vlan: left promiscuous mode [ 107.763016][ T55] veth0_vlan: left promiscuous mode 2026/02/03 07:32:15 executed programs: 0 [ 108.215711][ T4665] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 108.220416][ T4665] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 108.228268][ T4665] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 108.232097][ T4665] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 108.235849][ T4665] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 108.439384][ T55] team0 (unregistering): Port device team_slave_1 removed [ 108.468455][ T55] team0 (unregistering): Port device team_slave_0 removed [ 109.509481][ T5423] chnl_net:caif_netlink_parms(): no params data found [ 109.867120][ T5423] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.869864][ T5423] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.885564][ T5423] bridge_slave_0: entered allmulticast mode [ 109.892643][ T5423] bridge_slave_0: entered promiscuous mode [ 109.935051][ T5423] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.938098][ T5423] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.941194][ T5423] bridge_slave_1: entered allmulticast mode [ 109.963808][ T5423] bridge_slave_1: entered promiscuous mode [ 110.061213][ T5423] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 110.077653][ T5423] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 110.130847][ T5423] team0: Port device team_slave_0 added [ 110.146970][ T5423] team0: Port device team_slave_1 added [ 110.212030][ T5423] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 110.222881][ T5423] 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. [ 110.252648][ T5423] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 110.261201][ T5423] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 110.266448][ T47] Bluetooth: hci0: command tx timeout [ 110.274263][ T5423] 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. [ 110.303473][ T5423] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 110.404280][ T5423] hsr_slave_0: entered promiscuous mode [ 110.413240][ T5423] hsr_slave_1: entered promiscuous mode [ 110.976745][ T5423] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 111.003786][ T5423] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 111.026772][ T5423] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 111.043581][ T5423] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 111.199444][ T5423] 8021q: adding VLAN 0 to HW filter on device bond0 [ 111.222079][ T5423] 8021q: adding VLAN 0 to HW filter on device team0 [ 111.247113][ T1044] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.250397][ T1044] bridge0: port 1(bridge_slave_0) entered forwarding state [ 111.270671][ T1044] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.273960][ T1044] bridge0: port 2(bridge_slave_1) entered forwarding state [ 111.610365][ T5423] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 111.677520][ T5423] veth0_vlan: entered promiscuous mode [ 111.695700][ T5423] veth1_vlan: entered promiscuous mode [ 111.753265][ T5423] veth0_macvtap: entered promiscuous mode [ 111.761183][ T5423] veth1_macvtap: entered promiscuous mode [ 111.795203][ T5423] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 111.813162][ T5423] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 111.842880][ T1039] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.857953][ T1039] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.861766][ T1039] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.882481][ T1039] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.998114][ T1039] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 112.001429][ T1039] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 112.062816][ T55] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 112.066238][ T55] 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) [ 113.298445][ T1039] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 114.585380][ T1039] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 114.813644][ T1039] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 114.856723][ T1039] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 115.002641][ T1039] bridge_slave_1: left allmulticast mode [ 115.005376][ T1039] bridge_slave_1: left promiscuous mode [ 115.008001][ T1039] bridge0: port 2(bridge_slave_1) entered disabled state [ 115.016953][ T1039] bridge_slave_0: left allmulticast mode [ 115.019404][ T1039] bridge_slave_0: left promiscuous mode [ 115.021899][ T1039] bridge0: port 1(bridge_slave_0) entered disabled state [ 115.425064][ T1039] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 115.431151][ T1039] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 115.437757][ T1039] bond0 (unregistering): Released all slaves [ 115.665944][ T1039] hsr_slave_0: left promiscuous mode [ 115.669261][ T1039] hsr_slave_1: left promiscuous mode [ 115.682828][ T1039] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 115.686096][ T1039] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 115.703675][ T1039] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 115.706809][ T1039] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 115.727669][ T1039] veth1_macvtap: left promiscuous mode [ 115.730323][ T1039] veth0_macvtap: left promiscuous mode [ 115.743051][ T1039] veth1_vlan: left promiscuous mode [ 115.745467][ T1039] veth0_vlan: left promiscuous mode [ 116.141155][ T1039] team0 (unregistering): Port device team_slave_1 removed [ 116.166392][ T1039] team0 (unregistering): Port device team_slave_0 removed 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-build2564512074=/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='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at d1b870e1003b 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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" -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=\"d1b870e1003b52891d2196c1e2ee42fe905010ba\" /usr/bin/ld: /tmp/cc54lwPI.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