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) [ 95.598165][ T1021] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 95.601036][ T1021] ata1: failed to read log page 10h (errno=-5) [ 95.603905][ T1021] ata1.00: NCQ disabled due to excessive errors [ 95.619850][ T1021] ata1.00: exception Emask 0x1 SAct 0x70 SErr 0x0 action 0x0 [ 95.627569][ T1021] ata1.00: irq_stat 0x41000000 [ 95.631403][ T1021] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.642911][ T1021] ata1.00: cmd 61/00:20:36:91:04/20:00:00:00:00/40 tag 4 ncq dma 4194304 ou [ 95.642911][ T1021] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.659785][ T1021] ata1.00: status: { DRDY } [ 95.664434][ T1021] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.674424][ T1021] ata1.00: cmd 61/00:28:36:b1:04/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 95.674424][ T1021] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.692375][ T1021] ata1.00: status: { DRDY } [ 95.694829][ T1021] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.700260][ T1021] ata1.00: cmd 61/60:30:36:d1:04/06:00:00:00:00/40 tag 6 ncq dma 835584 out [ 95.700260][ T1021] res 50/00:01:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.718181][ T1021] ata1.00: status: { DRDY } [ 95.727008][ T1021] ata1.00: configured for UDMA/100 [ 95.732606][ T1021] ata1: EH complete [ 97.393824][ T1376] cfg80211: failed to load regulatory.db Warning: Permanently added '[localhost]:24847' (ED25519) to the list of known hosts. 2026/08/10 14:23:56 parsed 1 programs [ 105.402868][ T5286] cgroup: Unknown subsys name 'net' [ 105.483568][ T5286] cgroup: Unknown subsys name 'cpuset' [ 105.491553][ T5286] cgroup: Unknown subsys name 'rlimit' [ 107.345442][ T5286] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 114.237216][ T5309] 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. [ 115.154875][ T5331] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 115.161553][ T5331] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 115.169045][ T5331] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 115.176104][ T5331] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 115.184237][ T5331] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 117.227126][ T5331] Bluetooth: hci0: command tx timeout [ 119.306140][ T5331] Bluetooth: hci0: command tx timeout [ 120.940764][ T184] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 120.964833][ T184] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 121.047896][ T5306] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.054640][ T5306] bridge0: port 1(bridge_slave_0) entered disabled state [ 121.067142][ T5306] bridge_slave_0: entered allmulticast mode [ 121.072182][ T5306] bridge_slave_0: entered promiscuous mode [ 121.090516][ T5306] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.094349][ T5306] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.106224][ T5306] bridge_slave_1: entered allmulticast mode [ 121.113574][ T5306] bridge_slave_1: entered promiscuous mode [ 121.951545][ T5306] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 122.314525][ T5306] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 122.674751][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 122.705161][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 122.748825][ T5306] team0: Port device team_slave_0 added [ 122.872141][ T5306] team0: Port device team_slave_1 added [ 123.208907][ T5306] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 123.222319][ T5306] 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. [ 123.250344][ T5306] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 123.295263][ T5306] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 123.300931][ T5306] 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. [ 123.313729][ T5306] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 123.427259][ T5306] hsr_slave_0: entered promiscuous mode [ 123.434411][ T5306] hsr_slave_1: entered promiscuous mode [ 124.112643][ T5306] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 124.210911][ T5306] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 124.225392][ T5306] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 124.259962][ T5306] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 124.280636][ T5306] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 124.305716][ T5306] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 124.320715][ T5306] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 124.343125][ T5306] 8021q: adding VLAN 0 to HW filter on device netdevsim3 qemu-system-x86_64: hw/ide/core.c:925: 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-build2425468247=/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 5896748e7b 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=5896748e7b42c8f1b0cc2ceca4ba3dba2bed2618 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250204-190505'" -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=\"5896748e7b42c8f1b0cc2ceca4ba3dba2bed2618\" /usr/bin/ld: /tmp/ccBW59UB.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