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) Warning: Permanently added '[localhost]:20897' (ED25519) to the list of known hosts. 2026/05/07 19:21:48 parsed 1 programs [ 97.067391][ T10] cfg80211: failed to load regulatory.db [ 98.965207][ T5296] cgroup: Unknown subsys name 'net' [ 99.039631][ T5296] cgroup: Unknown subsys name 'cpuset' [ 99.047796][ T5296] cgroup: Unknown subsys name 'rlimit' [ 143.137103][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.140170][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 150.194280][ T1028] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 action 0x6 frozen [ 150.198203][ T1028] ata1.00: failed command: WRITE FPDMA QUEUED [ 150.201214][ T1028] ata1.00: cmd 61/00:70:36:c1:04/20:00:00:00:00/40 tag 14 ncq dma 4194304 ou [ 150.201214][ T1028] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 150.209529][ T1028] ata1.00: status: { DRDY } [ 150.212236][ T1028] ata1: hard resetting link [ 150.536597][ T1028] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 150.541709][ T1028] ata1.00: configured for UDMA/100 [ 150.544857][ T1028] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 204.576208][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 204.579963][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 [ 210.994172][ T1028] ata1.00: exception Emask 0x0 SAct 0x20 SErr 0x0 action 0x6 frozen [ 210.997674][ T1028] ata1.00: failed command: WRITE FPDMA QUEUED [ 211.000509][ T1028] ata1.00: cmd 61/00:28:36:21:05/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 211.000509][ T1028] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 211.008047][ T1028] ata1.00: status: { DRDY } [ 211.010559][ T1028] ata1: hard resetting link [ 211.335798][ T1028] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 211.340324][ T1028] ata1.00: configured for UDMA/100 [ 211.343078][ T1028] ata1: EH complete [ 213.085951][ T5296] 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 (0x199000) [ 216.496347][ T1028] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 216.502355][ T1028] ata1: failed to read log page 10h (errno=-5) [ 216.521991][ T1028] ata1.00: NCQ disabled due to excessive errors [ 216.525931][ T1028] ata1.00: exception Emask 0x1 SAct 0x4000 SErr 0x0 action 0x0 [ 216.530625][ T1028] ata1.00: irq_stat 0x41000008 [ 216.536049][ T1028] ata1.00: failed command: WRITE FPDMA QUEUED [ 216.544032][ T1028] ata1.00: cmd 61/c8:70:36:61:0c/0c:00:00:00:00/40 tag 14 ncq dma 1675264 ou [ 216.544032][ T1028] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 216.561397][ T1028] ata1.00: status: { DRDY } [ 216.563631][ T1028] ata1.00: error: { ABRT } [ 216.567120][ T1028] ata1.00: configured for UDMA/100 [ 216.574326][ T1028] ata1: EH complete [ 224.227512][ T5341] 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. [ 242.782971][ T44] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 242.801378][ T44] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 242.807323][ T44] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 242.818249][ T44] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 242.826838][ T44] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 244.895061][ T44] Bluetooth: hci0: command tx timeout [ 247.054947][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 247.086217][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 247.324512][ T1063] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 247.341466][ T1063] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 247.978982][ T5389] bridge0: port 1(bridge_slave_0) entered blocking state [ 247.993727][ T5389] bridge0: port 1(bridge_slave_0) entered disabled state [ 247.997677][ T5389] bridge_slave_0: entered allmulticast mode [ 248.002893][ T5389] bridge_slave_0: entered promiscuous mode [ 248.019766][ T5389] bridge0: port 2(bridge_slave_1) entered blocking state [ 248.028507][ T5389] bridge0: port 2(bridge_slave_1) entered disabled state [ 248.034795][ T5389] bridge_slave_1: entered allmulticast mode [ 248.045851][ T5389] bridge_slave_1: entered promiscuous mode [ 248.110929][ T5389] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 248.127678][ T5389] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 248.185655][ T5389] team0: Port device team_slave_0 added [ 248.196948][ T5389] team0: Port device team_slave_1 added [ 248.244609][ T5389] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 248.254279][ T5389] 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. [ 248.284027][ T5389] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 248.293100][ T5389] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 248.300157][ T5389] 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. [ 248.324143][ T5389] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 248.424057][ T5389] hsr_slave_0: entered promiscuous mode [ 248.428807][ T5389] hsr_slave_1: entered promiscuous mode [ 248.866243][ T5389] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 248.910772][ T5389] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 248.924959][ T5389] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 248.937913][ T5389] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 248.949181][ T5389] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 248.969013][ T5389] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 248.981989][ T5389] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 249.007353][ T5389] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 249.238230][ T5389] 8021q: adding VLAN 0 to HW filter on device bond0 [ 249.304577][ T5389] 8021q: adding VLAN 0 to HW filter on device team0 [ 249.334368][ T1063] bridge0: port 1(bridge_slave_0) entered blocking state [ 249.337783][ T1063] bridge0: port 1(bridge_slave_0) entered forwarding state [ 249.377072][ T1063] bridge0: port 2(bridge_slave_1) entered blocking state [ 249.380396][ T1063] bridge0: port 2(bridge_slave_1) entered forwarding state [ 250.167151][ T5389] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 250.280956][ T5389] veth0_vlan: entered promiscuous mode [ 250.304923][ T5389] veth1_vlan: entered promiscuous mode [ 250.367126][ T5389] veth0_macvtap: entered promiscuous mode [ 250.382093][ T5389] veth1_macvtap: entered promiscuous mode [ 250.423272][ T5389] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 250.453525][ T5389] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 250.490505][ T1063] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 250.512872][ T1063] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 250.524350][ T1063] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 250.544103][ T1063] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 251.562686][ T5296] syz-executor (5296) used greatest stack depth: 16968 bytes left execution of simple program fails: call 0 failed with errno 998 [ 252.516544][ T30] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 252.797540][ T30] netdevsim netdevsim2 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 252.866545][ T30] netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 252.936807][ T30] netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 253.227399][ T30] bridge_slave_1: left allmulticast mode [ 253.235308][ T30] bridge_slave_1: left promiscuous mode [ 253.246847][ T30] bridge0: port 2(bridge_slave_1) entered disabled state [ 253.261403][ T30] bridge_slave_0: left allmulticast mode [ 253.270591][ T30] bridge_slave_0: left promiscuous mode [ 253.284191][ T30] bridge0: port 1(bridge_slave_0) entered disabled state [ 253.671294][ T30] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 253.690182][ T30] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 253.707138][ T30] bond0 (unregistering): Released all slaves [ 254.566216][ T30] hsr_slave_0: left promiscuous mode [ 254.578423][ T30] hsr_slave_1: left promiscuous mode [ 254.588364][ T30] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 254.599836][ T30] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 254.619920][ T30] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 254.631322][ T30] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 254.716571][ T30] veth1_macvtap: left promiscuous mode [ 254.730483][ T30] veth0_macvtap: left promiscuous mode [ 254.738993][ T30] veth1_vlan: left promiscuous mode [ 254.747566][ T30] veth0_vlan: left promiscuous mode [ 255.101088][ T30] team0 (unregistering): Port device team_slave_1 removed [ 255.115359][ T30] team0 (unregistering): Port device team_slave_0 removed [ 255.248725][ T5001] 8021q: adding VLAN 0 to HW filter on device eth2 [ 255.678865][ T5001] 8021q: adding VLAN 0 to HW filter on device eth3 [ 255.897918][ T5001] 8021q: adding VLAN 0 to HW filter on device eth4 [ 256.111451][ T5001] 8021q: adding VLAN 0 to HW filter on device eth5 [ 266.016377][ T1331] ieee802154 phy0 wpan0: encryption failed: -22 [ 266.019308][ T1331] ieee802154 phy1 wpan1: encryption failed: -22 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-build3661279971=/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 dcc075fb5dfd 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=dcc075fb5dfde991fc068b0cfbe08910e5980246 -X github.com/google/syzkaller/prog.gitRevisionDate=20250814-112955" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=dcc075fb5dfde991fc068b0cfbe08910e5980246 -X github.com/google/syzkaller/prog.gitRevisionDate=20250814-112955" ./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=dcc075fb5dfde991fc068b0cfbe08910e5980246 -X github.com/google/syzkaller/prog.gitRevisionDate=20250814-112955" -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=\"dcc075fb5dfde991fc068b0cfbe08910e5980246\" /usr/bin/ld: /tmp/cc1xyZys.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