lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x2f4000) qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xeb000) [ 87.414391][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 87.417179][ T1027] ata1: failed to read log page 10h (errno=-5) [ 87.419715][ T1027] ata1.00: exception Emask 0x1 SAct 0xc100 SErr 0x0 action 0x0 [ 87.436453][ T1027] ata1.00: irq_stat 0x41000000 [ 87.441304][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.447101][ T1027] ata1.00: cmd 61/a0:40:fe:63:04/17:00:00:00:00/40 tag 8 ncq dma 3096576 ou [ 87.447101][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.465942][ T1027] ata1.00: status: { DRDY } [ 87.467906][ T1027] ata1.00: error: { ABRT } [ 87.469893][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.482141][ T1027] ata1.00: cmd 61/58:70:36:c1:04/07:00:00:00:00/40 tag 14 ncq dma 962560 out [ 87.482141][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.497213][ T1027] ata1.00: status: { DRDY } [ 87.502560][ T1027] ata1.00: error: { ABRT } [ 87.510183][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 87.519918][ T1027] ata1.00: cmd 61/e0:78:8e:c8:04/02:00:00:00:00/40 tag 15 ncq dma 376832 out [ 87.519918][ T1027] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 87.538292][ T1027] ata1.00: status: { DRDY } [ 87.540538][ T1027] ata1.00: error: { ABRT } [ 87.548125][ T1027] ata1.00: configured for UDMA/100 [ 87.556015][ T1027] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:22105' (ED25519) to the list of known hosts. 2026/05/08 11:51:05 parsed 1 programs [ 96.265527][ T5297] cgroup: Unknown subsys name 'net' [ 96.315178][ T5297] cgroup: Unknown subsys name 'cpuset' [ 96.325336][ T5297] cgroup: Unknown subsys name 'rlimit' [ 96.944068][ T900] cfg80211: failed to load regulatory.db [ 143.024431][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.027971][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 156.481050][ T1027] ata1.00: exception Emask 0x0 SAct 0x200000 SErr 0x0 action 0x6 frozen [ 156.484877][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.487763][ T1027] ata1.00: cmd 61/00:a8:36:01:05/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 156.487763][ T1027] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 156.495524][ T1027] ata1.00: status: { DRDY } [ 156.497933][ T1027] ata1: hard resetting link [ 156.821951][ T1027] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 156.827088][ T1027] ata1.00: configured for UDMA/100 [ 156.832993][ T1027] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x277000) [ 156.862416][ T1027] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 156.867695][ T1027] ata1: failed to read log page 10h (errno=-5) [ 156.870502][ T1027] ata1.00: NCQ disabled due to excessive errors [ 156.873848][ T1027] ata1.00: exception Emask 0x1 SAct 0x1fa0 SErr 0x0 action 0x0 [ 156.877125][ T1027] ata1.00: irq_stat 0x40000000 [ 156.879101][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.882431][ T1027] ata1.00: cmd 61/a0:28:2e:89:05/04:00:00:00:00/40 tag 5 ncq dma 606208 out [ 156.882431][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 156.890148][ T1027] ata1.00: status: { DRDY } [ 156.892525][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.894787][ T1027] ata1.00: cmd 61/d0:38:9e:93:05/02:00:00:00:00/40 tag 7 ncq dma 368640 out [ 156.894787][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 156.902011][ T1027] ata1.00: status: { DRDY } [ 156.904203][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.906777][ T1027] ata1.00: cmd 61/48:40:6e:96:05/0c:00:00:00:00/40 tag 8 ncq dma 1609728 ou [ 156.906777][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 156.914615][ T1027] ata1.00: status: { DRDY } [ 156.916993][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.919992][ T1027] ata1.00: cmd 61/30:48:b6:a2:05/01:00:00:00:00/40 tag 9 ncq dma 155648 out [ 156.919992][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 156.928342][ T1027] ata1.00: status: { DRDY } [ 156.930337][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.933513][ T1027] ata1.00: cmd 61/00:50:36:41:0c/20:00:00:00:00/40 tag 10 ncq dma 4194304 ou [ 156.933513][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 156.941174][ T1027] ata1.00: status: { DRDY } [ 156.943305][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.945977][ T1027] ata1.00: cmd 61/b8:58:36:61:0c/13:00:00:00:00/40 tag 11 ncq dma 2584576 ou [ 156.945977][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 156.953689][ T1027] ata1.00: status: { DRDY } [ 156.956276][ T1027] ata1.00: failed command: WRITE FPDMA QUEUED [ 156.959095][ T1027] ata1.00: cmd 61/08:60:4e:21:04/00:00:00:00:00/40 tag 12 ncq dma 4096 out [ 156.959095][ T1027] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 156.966837][ T1027] ata1.00: status: { DRDY } [ 156.971082][ T1027] ata1.00: configured for UDMA/100 [ 156.974099][ T1027] ata1: EH complete [ 158.743190][ T5297] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 165.330181][ 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. [ 166.154697][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 166.194598][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 166.781641][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 166.807219][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 171.494189][ T5366] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 171.500380][ T5366] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 171.506613][ T5366] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 171.511539][ T5366] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 171.514939][ T5366] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 173.584558][ T5366] Bluetooth: hci0: command tx timeout [ 175.660995][ T5366] Bluetooth: hci0: command tx timeout [ 176.053693][ T5377] modprobe (5377) used greatest stack depth: 15784 bytes left [ 177.740798][ T5366] Bluetooth: hci0: command tx timeout [ 179.821718][ T5366] Bluetooth: hci0: command tx timeout [ 189.527227][ T5376] bridge0: port 1(bridge_slave_0) entered blocking state [ 189.542228][ T5376] bridge0: port 1(bridge_slave_0) entered disabled state [ 189.554318][ T5376] bridge_slave_0: entered allmulticast mode [ 189.571134][ T5376] bridge_slave_0: entered promiscuous mode [ 189.772171][ T5376] bridge0: port 2(bridge_slave_1) entered blocking state [ 189.778484][ T5376] bridge0: port 2(bridge_slave_1) entered disabled state [ 189.788851][ T5376] bridge_slave_1: entered allmulticast mode [ 189.800002][ T5376] bridge_slave_1: entered promiscuous mode [ 192.214238][ T5376] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 192.233915][ T5376] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 192.517402][ T5376] team0: Port device team_slave_0 added [ 192.532167][ T5376] team0: Port device team_slave_1 added [ 192.601280][ T5376] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 192.611120][ T5376] 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. [ 192.641309][ T5376] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 192.676379][ T5376] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 192.690858][ T5376] 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. [ 192.711159][ T5376] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 193.331568][ T5376] hsr_slave_0: entered promiscuous mode [ 193.347118][ T5376] hsr_slave_1: entered promiscuous mode [ 194.991542][ T5376] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 195.057197][ T5376] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 195.076427][ T5376] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 195.111371][ T5376] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 195.125110][ T5376] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 195.145947][ T5376] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 195.157856][ T5376] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 195.190314][ T5376] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 195.483934][ T5376] 8021q: adding VLAN 0 to HW filter on device bond0 [ 195.529142][ T5376] 8021q: adding VLAN 0 to HW filter on device team0 [ 195.549139][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 195.552797][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 195.580321][ T30] bridge0: port 2(bridge_slave_1) entered blocking state [ 195.583494][ T30] bridge0: port 2(bridge_slave_1) entered forwarding state [ 196.578624][ T5376] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 196.699854][ T5376] veth0_vlan: entered promiscuous mode [ 196.734238][ T5376] veth1_vlan: entered promiscuous mode [ 196.823133][ T5376] veth0_macvtap: entered promiscuous mode [ 196.850609][ T5376] veth1_macvtap: entered promiscuous mode [ 196.901895][ T5376] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 196.927431][ T5376] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 196.966209][ T13] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 196.987360][ T13] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 197.007382][ T13] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 197.027479][ T13] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/05/08 11:52:54 executed programs: 0 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-build517094267=/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 1c8c8cd830af 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=1c8c8cd830af4deee250ad11f1613d1d9a62ca0b -X github.com/google/syzkaller/prog.gitRevisionDate=20251017-133007" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=1c8c8cd830af4deee250ad11f1613d1d9a62ca0b -X github.com/google/syzkaller/prog.gitRevisionDate=20251017-133007" ./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=1c8c8cd830af4deee250ad11f1613d1d9a62ca0b -X github.com/google/syzkaller/prog.gitRevisionDate=20251017-133007" -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=\"1c8c8cd830af4deee250ad11f1613d1d9a62ca0b\" /usr/bin/ld: /tmp/ccNVHCcq.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