lost connection to test machine Warning: Permanently added '[localhost]:20569' (ED25519) to the list of known hosts. syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) 2026/07/20 05:54:29 parsed 1 programs [ 88.661237][ T5294] cgroup: Unknown subsys name 'net' [ 88.721528][ T5294] cgroup: Unknown subsys name 'cpuset' [ 88.733018][ T5294] cgroup: Unknown subsys name 'rlimit' [ 91.809684][ T10] cfg80211: failed to load regulatory.db [ 137.895479][ T1333] ieee802154 phy0 wpan0: encryption failed: -22 [ 137.899508][ T1333] ieee802154 phy1 wpan1: encryption failed: -22 [ 146.227149][ T1029] ata1.00: exception Emask 0x0 SAct 0x200000 SErr 0x0 action 0x6 frozen [ 146.230684][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 146.233281][ T1029] ata1.00: cmd 61/00:a8:36:61:05/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 146.233281][ T1029] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 146.240802][ T1029] ata1.00: status: { DRDY } [ 146.243562][ T1029] ata1: hard resetting link [ 146.568014][ T1029] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 146.572188][ T1029] ata1.00: configured for UDMA/100 [ 146.575397][ T1029] ata1: EH complete [ 148.882990][ T5294] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 153.117928][ T44] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 153.129620][ T44] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 153.134019][ T44] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 153.146533][ T44] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 153.153759][ T44] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 154.573789][ T5333] 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. [ 155.247853][ T4653] Bluetooth: hci0: command tx timeout [ 158.513721][ T5335] bridge0: port 1(bridge_slave_0) entered blocking state [ 158.527752][ T5335] bridge0: port 1(bridge_slave_0) entered disabled state [ 158.537628][ T5335] bridge_slave_0: entered allmulticast mode [ 158.550341][ T5335] bridge_slave_0: entered promiscuous mode [ 158.563671][ T5335] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.577371][ T5335] bridge0: port 2(bridge_slave_1) entered disabled state [ 158.580718][ T5335] bridge_slave_1: entered allmulticast mode [ 158.585776][ T5335] bridge_slave_1: entered promiscuous mode [ 158.775802][ T5335] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 159.158568][ T5335] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 159.424746][ T5335] team0: Port device team_slave_0 added [ 159.738324][ T5335] team0: Port device team_slave_1 added [ 160.035722][ T5335] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 160.052889][ T5335] 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. [ 160.127749][ T5335] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 160.330742][ T5335] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 160.359067][ T5335] 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. [ 160.451117][ T5335] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 162.135078][ T5335] hsr_slave_0: entered promiscuous mode [ 162.145787][ T5335] hsr_slave_1: entered promiscuous mode [ 165.485018][ T14] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 165.498225][ T14] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 167.754480][ T1059] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 167.766303][ T1059] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x112000) [ 167.837813][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 167.840697][ T1029] ata1: failed to read log page 10h (errno=-5) [ 167.843171][ T1029] ata1.00: exception Emask 0x1 SAct 0x4000 SErr 0x0 action 0x0 [ 167.890894][ T1029] ata1.00: irq_stat 0x41000008 [ 167.903991][ T1029] ata1.00: failed command: READ FPDMA QUEUED [ 167.915143][ T1029] ata1.00: cmd 60/90:70:b6:65:04/08:00:00:00:00/40 tag 14 ncq dma 1122304 in [ 167.915143][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 167.937447][ T1029] ata1.00: status: { DRDY } [ 167.947864][ T1029] ata1.00: error: { ABRT } [ 167.952437][ T1029] ata1.00: configured for UDMA/100 [ 167.957465][ T1029] sd 0:0:0:0: [sda] tag#14 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 167.982334][ T1029] sd 0:0:0:0: [sda] tag#14 Sense Key : Aborted Command [current] [ 167.993546][ T1029] sd 0:0:0:0: [sda] tag#14 Add. Sense: No additional sense information [ 168.009830][ T1029] sd 0:0:0:0: [sda] tag#14 CDB: Read(10) 28 00 00 04 65 b6 00 08 90 00 [ 168.027803][ T1029] I/O error, dev sda, sector 288182 op 0x0:(READ) flags 0x80700 phys_seg 119 prio class 2 [ 168.045526][ T1029] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x119000) [ 169.118138][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 169.121000][ T1029] ata1: failed to read log page 10h (errno=-5) [ 169.123742][ T1029] ata1.00: NCQ disabled due to excessive errors [ 169.126460][ T1029] ata1.00: exception Emask 0x1 SAct 0x4000 SErr 0x0 action 0x0 [ 169.150848][ T1029] ata1.00: irq_stat 0x41000008 [ 169.161284][ T1029] ata1.00: failed command: READ FPDMA QUEUED [ 169.172116][ T1029] ata1.00: cmd 60/c8:70:e6:7b:04/08:00:00:00:00/40 tag 14 ncq dma 1150976 in [ 169.172116][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 169.192058][ T1029] ata1.00: status: { DRDY } [ 169.197594][ T1029] ata1.00: error: { ABRT } [ 169.208706][ T1029] ata1.00: configured for UDMA/100 [ 169.227509][ T1029] sd 0:0:0:0: [sda] tag#14 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 169.247359][ T1029] sd 0:0:0:0: [sda] tag#14 Sense Key : Aborted Command [current] [ 169.257022][ T1029] sd 0:0:0:0: [sda] tag#14 Add. Sense: No additional sense information [ 169.272807][ T1029] sd 0:0:0:0: [sda] tag#14 CDB: Read(10) 28 00 00 04 7b e6 00 08 c8 00 [ 169.286067][ T1029] I/O error, dev sda, sector 293862 op 0x0:(READ) flags 0x80700 phys_seg 124 prio class 2 [ 169.307628][ T1029] ata1: EH complete [ 169.533984][ T5335] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 169.615445][ T5335] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 169.639585][ T5335] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 169.674657][ T5335] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 169.689033][ T5335] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 169.724395][ T5335] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 169.740379][ T5335] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 169.770627][ T5335] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 172.727303][ T5335] 8021q: adding VLAN 0 to HW filter on device bond0 [ 173.736532][ T5335] 8021q: adding VLAN 0 to HW filter on device team0 [ 174.432111][ T179] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.435863][ T179] bridge0: port 1(bridge_slave_0) entered forwarding state [ 174.768585][ T179] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.771820][ T179] bridge0: port 2(bridge_slave_1) entered forwarding state [ 180.597103][ T5335] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 182.152245][ T5335] veth0_vlan: entered promiscuous mode [ 182.177788][ T5335] veth1_vlan: entered promiscuous mode [ 182.256281][ T5335] veth0_macvtap: entered promiscuous mode [ 182.649395][ T5335] veth1_macvtap: entered promiscuous mode [ 182.804478][ T5335] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 182.830001][ T5335] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 183.063658][ T179] netdevsim netdevsim5 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 183.324074][ T179] netdevsim netdevsim5 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 183.741704][ T179] netdevsim netdevsim5 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 183.758065][ T179] netdevsim netdevsim5 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 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-build1315561692=/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 2a20f901db 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=2a20f901dbd7922a27b5625a8a442587c8c3df2c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250417-194640'" -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=\"2a20f901dbd7922a27b5625a8a442587c8c3df2c\" /usr/bin/ld: /tmp/cczyF4p8.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