lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 88.004983][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 88.008045][ T1027] ata1: failed to read log page 10h (errno=-5) [ 88.011034][ T1027] ata1.00: exception Emask 0x1 SAct 0x1900 SErr 0x0 action 0x0 [ 88.023525][ T1027] ata1.00: irq_stat 0x41000000 [ 88.034799][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 88.037868][ T1027] ata1.00: cmd 61/00:40:36:81:04/20:00:00:00:00/40 tag 8 ncq dma 4194304 ou [ 88.037868][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 88.053658][ T1027] ata1.00: status: { DRDY } [ 88.063280][ T1027] ata1.00: error: { ABRT } [ 88.065601][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 88.068252][ T1027] ata1.00: cmd 61/00:58:36:e1:04/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 88.068252][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 88.083805][ T1027] ata1.00: status: { DRDY } [ 88.085965][ T1027] ata1.00: error: { ABRT } [ 88.087982][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 88.090638][ T1027] ata1.00: cmd 61/e0:60:36:01:05/0d:00:00:00:00/40 tag 12 ncq dma 1818624 ou [ 88.090638][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 88.117039][ T1027] ata1.00: status: { DRDY } [ 88.118895][ T1027] ata1.00: error: { ABRT } [ 88.129115][ T1027] ata1.00: configured for UDMA/100 [ 88.136408][ T1027] ata1: EH complete Warning: Permanently added '[localhost]:60534' (ED25519) to the list of known hosts. qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 93.153977][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 93.163259][ T1027] ata1: failed to read log page 10h (errno=-5) [ 93.165928][ T1027] ata1.00: NCQ disabled due to excessive errors [ 93.173872][ T1027] ata1.00: exception Emask 0x1 SAct 0x3800000 SErr 0x0 action 0x0 [ 93.178794][ T1027] ata1.00: irq_stat 0x41000000 [ 93.183552][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 93.193672][ T1027] ata1.00: cmd 61/60:b8:d6:6a:05/16:00:00:00:00/40 tag 23 ncq dma 2932736 ou [ 93.193672][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 93.211869][ T1027] ata1.00: status: { DRDY } [ 93.214269][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 93.217094][ T1027] ata1.00: cmd 61/00:c0:36:81:05/20:00:00:00:00/40 tag 24 ncq dma 4194304 ou [ 93.217094][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 93.233258][ T1027] ata1.00: status: { DRDY } [ 93.243338][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 93.246497][ T1027] ata1.00: cmd 61/c0:c8:36:a1:05/06:00:00:00:00/40 tag 25 ncq dma 884736 out [ 93.246497][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 93.263291][ T1027] ata1.00: status: { DRDY } [ 93.267228][ T1027] ata1.00: configured for UDMA/100 [ 93.271589][ T1027] ata1: EH complete 2026/05/10 20:21:22 parsed 1 programs [ 96.562396][ T5297] cgroup: Unknown subsys name 'net' [ 96.619071][ T5297] cgroup: Unknown subsys name 'cpuset' [ 96.625955][ T5297] cgroup: Unknown subsys name 'rlimit' [ 96.959139][ T9] cfg80211: failed to load regulatory.db [ 98.408365][ T5297] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 103.851782][ T5313] 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. [ 107.256463][ T5333] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.260697][ T5333] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.267526][ T5333] bridge_slave_0: entered allmulticast mode [ 107.272064][ T5333] bridge_slave_0: entered promiscuous mode [ 107.280115][ T5333] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.283707][ T5333] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.287071][ T5333] bridge_slave_1: entered allmulticast mode [ 107.290800][ T5333] bridge_slave_1: entered promiscuous mode [ 107.317586][ T5333] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 107.324493][ T5333] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 107.350548][ T5333] team0: Port device team_slave_0 added [ 107.355610][ T5333] team0: Port device team_slave_1 added [ 107.376505][ T5333] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 107.379677][ T5333] 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. [ 107.391243][ T5333] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 107.399110][ T5333] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 107.402320][ T5333] 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. [ 107.413987][ T5333] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 107.449735][ T5333] hsr_slave_0: entered promiscuous mode [ 107.454017][ T5333] hsr_slave_1: entered promiscuous mode [ 107.610666][ T5333] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 107.624507][ T5333] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 107.629652][ T5333] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 107.636546][ T5333] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 107.640663][ T5333] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 107.649003][ T5333] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 107.657170][ T5333] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 107.668541][ T5333] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 107.702224][ T5333] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.706028][ T5333] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.709669][ T5333] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.712969][ T5333] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.781883][ T5333] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.799240][ T131] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.805578][ T131] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.820176][ T5333] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.851289][ T131] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.854762][ T131] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.885173][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.888348][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.264780][ T5333] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 108.308811][ T5333] veth0_vlan: entered promiscuous mode [ 108.325097][ T5333] veth1_vlan: entered promiscuous mode [ 108.357016][ T5333] veth0_macvtap: entered promiscuous mode [ 108.364434][ T5333] veth1_macvtap: entered promiscuous mode [ 108.381663][ T5333] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 108.396889][ T5333] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 108.413073][ T131] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.426598][ T131] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.444910][ T131] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.462343][ T131] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.716655][ T131] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.786810][ T131] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.866004][ T131] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.989720][ T131] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.317512][ T5377] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 109.325321][ T44] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 109.328932][ T44] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 109.333084][ T44] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 109.338663][ T44] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 109.857473][ T176] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 109.876594][ T176] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 109.955779][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 109.964284][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 110.784840][ T131] bridge_slave_1: left allmulticast mode [ 110.802743][ T131] bridge_slave_1: left promiscuous mode [ 110.817450][ T131] bridge0: port 2(bridge_slave_1) entered disabled state [ 110.832580][ T131] bridge_slave_0: left allmulticast mode [ 110.843474][ T131] bridge_slave_0: left promiscuous mode [ 110.846251][ T131] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.090286][ T131] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 111.098285][ T131] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 111.105900][ T131] bond0 (unregistering): Released all slaves [ 111.230815][ T131] hsr_slave_0: left promiscuous mode [ 111.245252][ T131] hsr_slave_1: left promiscuous mode [ 111.248446][ T131] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 111.258296][ T131] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 111.273048][ T131] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 111.283931][ T131] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 111.313083][ T131] veth1_macvtap: left promiscuous mode [ 111.316686][ T131] veth0_macvtap: left promiscuous mode [ 111.320233][ T131] veth1_vlan: left promiscuous mode [ 111.322787][ T131] veth0_vlan: left promiscuous mode [ 111.701701][ T131] team0 (unregistering): Port device team_slave_1 removed [ 111.745829][ T131] team0 (unregistering): Port device team_slave_0 removed qemu-system-x86_64: hw/ide/core.c:934: ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed. Connection to localhost closed by remote host. 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-build1553084972=/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='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at cbd8edabd77d 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}}' ./sys/syz-sysgen | grep -q false || go install ./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=cbd8edabd77d676c77120894f85f37dbf22d32a1 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250219-101752'" -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=\"cbd8edabd77d676c77120894f85f37dbf22d32a1\" /usr/bin/ld: /tmp/ccE0sGoU.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