lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x261000) [ 95.718108][ T1031] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 95.720987][ T1031] ata1: failed to read log page 10h (errno=-5) [ 95.724105][ T1031] ata1.00: exception Emask 0x1 SAct 0x1800 SErr 0x0 action 0x0 [ 95.743850][ T1031] ata1.00: irq_stat 0x41000000 [ 95.746504][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.754798][ T1031] ata1.00: cmd 61/08:58:2e:ae:04/13:00:00:00:00/40 tag 11 ncq dma 2494464 ou [ 95.754798][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.774129][ T1031] ata1.00: status: { DRDY } [ 95.780555][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.789160][ T1031] ata1.00: cmd 61/80:60:36:c1:04/0b:00:00:00:00/40 tag 12 ncq dma 1507328 ou [ 95.789160][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.807264][ T1031] ata1.00: status: { DRDY } [ 95.816642][ T1031] ata1.00: configured for UDMA/100 [ 95.826138][ T1031] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x261000) [ 95.856646][ T1031] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 95.859725][ T1031] ata1: failed to read log page 10h (errno=-5) [ 95.862520][ T1031] ata1.00: exception Emask 0x1 SAct 0x1c000000 SErr 0x0 action 0x0 [ 95.877144][ T1031] ata1.00: irq_stat 0x41000008 [ 95.879860][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.884382][ T1031] ata1.00: cmd 61/08:d0:b6:cc:04/03:00:00:00:00/40 tag 26 ncq dma 397312 out [ 95.884382][ T1031] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.907000][ T1031] ata1.00: status: { DRDY } [ 95.916287][ T1031] ata1.00: error: { ABRT } [ 95.918372][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.921132][ T1031] ata1.00: cmd 61/08:d8:2e:ae:04/13:00:00:00:00/40 tag 27 ncq dma 2494464 ou [ 95.921132][ T1031] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.948073][ T1031] ata1.00: status: { DRDY } [ 95.955778][ T1031] ata1.00: error: { ABRT } [ 95.960047][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED [ 95.967211][ T1031] ata1.00: cmd 61/80:e0:36:c1:04/0b:00:00:00:00/40 tag 28 ncq dma 1507328 ou [ 95.967211][ T1031] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 95.985743][ T1031] ata1.00: status: { DRDY } [ 95.992202][ T1031] ata1.00: error: { ABRT } [ 95.998658][ T1031] ata1.00: configured for UDMA/100 [ 96.005654][ T1031] ata1: EH complete [ 97.233201][ T10] cfg80211: failed to load regulatory.db Warning: Permanently added '[localhost]:28182' (ED25519) to the list of known hosts. 2026/07/15 07:54:26 parsed 1 programs [ 105.908420][ T5297] cgroup: Unknown subsys name 'net' [ 105.981832][ T5297] cgroup: Unknown subsys name 'cpuset' [ 105.989027][ T5297] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 107.751138][ T5297] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x283000) [ 143.302876][ T1334] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.306595][ T1334] ieee802154 phy1 wpan1: encryption failed: -22 [ 172.755372][ T1031] ata1.00: NCQ disabled due to excessive errors [ 172.758262][ T1031] ata1.00: exception Emask 0x0 SAct 0x1000000 SErr 0x0 action 0x6 frozen [ 172.762046][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED [ 172.764841][ T1031] ata1.00: cmd 61/18:c0:f6:c3:05/14:00:00:00:00/40 tag 24 ncq dma 2633728 ou [ 172.764841][ T1031] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 172.772627][ T1031] ata1.00: status: { DRDY } [ 172.774991][ T1031] ata1: hard resetting link [ 173.097386][ T1031] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 173.103592][ T1031] ata1.00: configured for UDMA/100 [ 173.106678][ T1031] ata1: EH complete [ 173.881521][ T5332] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 173.890233][ T5332] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 173.894997][ T5332] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 173.903958][ T5332] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 173.910298][ T5332] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 175.465005][ T5328] 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. [ 175.936057][ T4654] Bluetooth: hci0: command tx timeout [ 182.481462][ T1168] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 182.509631][ T1168] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 183.037913][ T186] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 183.072077][ T186] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 185.313262][ T5368] bridge0: port 1(bridge_slave_0) entered blocking state [ 185.321210][ T5368] bridge0: port 1(bridge_slave_0) entered disabled state [ 185.332064][ T5368] bridge_slave_0: entered allmulticast mode [ 185.350082][ T5368] bridge_slave_0: entered promiscuous mode [ 185.378880][ T5368] bridge0: port 2(bridge_slave_1) entered blocking state [ 185.391759][ T5368] bridge0: port 2(bridge_slave_1) entered disabled state [ 185.401669][ T5368] bridge_slave_1: entered allmulticast mode [ 185.415159][ T5368] bridge_slave_1: entered promiscuous mode [ 185.478077][ T5368] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 185.505920][ T5368] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 185.560991][ T5368] team0: Port device team_slave_0 added [ 185.576816][ T5368] team0: Port device team_slave_1 added [ 185.625663][ T5368] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 185.628810][ T5368] 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. [ 185.655169][ T5368] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 185.670098][ T5368] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 185.685385][ T5368] 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. [ 185.705194][ T5368] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 185.839572][ T5368] hsr_slave_0: entered promiscuous mode [ 185.867108][ T5368] hsr_slave_1: entered promiscuous mode [ 186.601708][ T5368] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 186.640277][ T5368] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 186.659372][ T5368] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 186.673653][ T5368] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 186.688003][ T5368] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 186.709392][ T5368] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 186.717940][ T5368] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 186.730232][ T5368] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 186.960712][ T5368] 8021q: adding VLAN 0 to HW filter on device bond0 [ 187.027891][ T5368] 8021q: adding VLAN 0 to HW filter on device team0 [ 187.040619][ T173] bridge0: port 1(bridge_slave_0) entered blocking state [ 187.044383][ T173] bridge0: port 1(bridge_slave_0) entered forwarding state [ 187.094285][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 187.098226][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 187.731402][ T5368] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 187.823485][ T5368] veth0_vlan: entered promiscuous mode [ 187.841118][ T5368] veth1_vlan: entered promiscuous mode [ 187.914062][ T5368] veth0_macvtap: entered promiscuous mode [ 187.933219][ T5368] veth1_macvtap: entered promiscuous mode [ 187.975659][ T5368] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 188.011025][ T5368] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 188.056497][ T186] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 188.086660][ T186] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 188.108274][ T186] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 188.124782][ T186] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/07/15 07:55:51 executed programs: 0 [ 188.789520][ T5332] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 188.796717][ T5332] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 188.801930][ T5332] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 188.807990][ T5332] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 188.812443][ T5332] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 188.864252][ T186] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 189.299279][ T186] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 189.668257][ T5434] bridge0: port 1(bridge_slave_0) entered blocking state [ 189.675523][ T5434] bridge0: port 1(bridge_slave_0) entered disabled state [ 189.685583][ T5434] bridge_slave_0: entered allmulticast mode [ 189.691618][ T5434] bridge_slave_0: entered promiscuous mode [ 189.706420][ T5434] bridge0: port 2(bridge_slave_1) entered blocking state [ 189.712219][ T5434] bridge0: port 2(bridge_slave_1) entered disabled state [ 189.715993][ T5434] bridge_slave_1: entered allmulticast mode [ 189.720408][ T5434] bridge_slave_1: entered promiscuous mode [ 189.751576][ T5434] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 189.761010][ T5434] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 189.796691][ T5434] team0: Port device team_slave_0 added [ 189.802745][ T5434] team0: Port device team_slave_1 added [ 189.884493][ T186] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 189.898584][ T5434] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 189.902342][ T5434] 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. [ 189.915525][ T5434] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 189.922676][ T5434] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 189.926781][ T5434] 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. [ 189.939956][ T5434] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 189.980351][ T5434] hsr_slave_0: entered promiscuous mode [ 189.983806][ T5434] hsr_slave_1: entered promiscuous mode [ 189.992031][ T5434] debugfs: 'hsr0' already exists in 'hsr' [ 189.997688][ T5434] Cannot create hsr debugfs directory [ 190.234904][ T186] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 190.494228][ T186] bridge_slave_1: left allmulticast mode [ 190.504210][ T186] bridge_slave_1: left promiscuous mode [ 190.509429][ T186] bridge0: port 2(bridge_slave_1) entered disabled state [ 190.521768][ T186] bridge_slave_0: left allmulticast mode [ 190.524261][ T186] bridge_slave_0: left promiscuous mode [ 190.527729][ T186] bridge0: port 1(bridge_slave_0) entered disabled state [ 190.713490][ T186] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 190.724092][ T186] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 190.731476][ T186] bond0 (unregistering): Released all slaves [ 190.904105][ T5332] Bluetooth: hci0: command tx timeout [ 190.966533][ T186] hsr_slave_0: left promiscuous mode [ 190.979442][ T186] hsr_slave_1: left promiscuous mode [ 190.989602][ T186] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 190.999032][ T186] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 191.012503][ T186] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 191.025581][ T186] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 191.060306][ T186] veth1_macvtap: left promiscuous mode [ 191.067877][ T186] veth0_macvtap: left promiscuous mode [ 191.075675][ T186] veth1_vlan: left promiscuous mode [ 191.081032][ T186] veth0_vlan: left promiscuous mode [ 191.547684][ T186] team0 (unregistering): Port device team_slave_1 removed [ 191.564366][ T186] team0 (unregistering): Port device team_slave_0 removed [ 191.699934][ T5000] 8021q: adding VLAN 0 to HW filter on device eth2 [ 192.262183][ T5434] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 192.280404][ T5434] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 192.290028][ T5434] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 192.311381][ T5434] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 192.322677][ T5434] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 192.343213][ T5434] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 192.360015][ T5434] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 192.370580][ T5434] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 192.536072][ T5434] 8021q: adding VLAN 0 to HW filter on device bond0 [ 192.568966][ T5434] 8021q: adding VLAN 0 to HW filter on device team0 [ 192.592731][ T30] bridge0: port 1(bridge_slave_0) entered blocking state [ 192.596099][ T30] bridge0: port 1(bridge_slave_0) entered forwarding state [ 192.625227][ T30] bridge0: port 2(bridge_slave_1) entered blocking state [ 192.629392][ T30] bridge0: port 2(bridge_slave_1) entered forwarding state [ 192.976655][ T5332] Bluetooth: hci0: command tx timeout [ 193.437393][ T5434] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 193.566409][ T5434] veth0_vlan: entered promiscuous mode [ 193.581435][ T5434] veth1_vlan: entered promiscuous mode [ 193.608694][ T5434] veth0_macvtap: entered promiscuous mode [ 193.619743][ T5434] veth1_macvtap: entered promiscuous mode [ 193.639441][ T5434] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 193.653616][ T5434] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 193.666111][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 193.677092][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 193.693460][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 193.714372][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 193.795649][ T1168] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 193.809042][ T1168] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 193.839314][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 193.843263][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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-build1373526813=/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 d1b870e100 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/ccD23GdN.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