lost connection to test machine syzkaller login: [ 102.515015][ T10] cfg80211: failed to load regulatory.db qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:23578' (ED25519) to the list of known hosts. 2026/04/28 17:04:09 parsed 1 programs [ 113.749429][ T5296] cgroup: Unknown subsys name 'net' [ 113.803216][ T5296] cgroup: Unknown subsys name 'cpuset' [ 113.815547][ T5296] cgroup: Unknown subsys name 'rlimit' [ 148.571968][ T1330] ieee802154 phy0 wpan0: encryption failed: -22 [ 148.576356][ T1330] ieee802154 phy1 wpan1: encryption failed: -22 [ 165.867853][ T1025] ata1.00: exception Emask 0x0 SAct 0x40000000 SErr 0x0 action 0x6 frozen [ 165.872688][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 165.875982][ T1025] ata1.00: cmd 61/00:f0:36:c1:04/20:00:00:00:00/40 tag 30 ncq dma 4194304 ou [ 165.875982][ T1025] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 165.884562][ T1025] ata1.00: status: { DRDY } [ 165.888204][ T1025] ata1: hard resetting link [ 166.211816][ T1025] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 166.216767][ T1025] ata1.00: configured for UDMA/100 [ 166.221429][ T1025] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 210.012088][ T1330] ieee802154 phy0 wpan0: encryption failed: -22 [ 210.015772][ T1330] ieee802154 phy1 wpan1: encryption failed: -22 [ 226.667715][ T1025] ata1.00: exception Emask 0x0 SAct 0x20 SErr 0x0 action 0x6 frozen [ 226.671453][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 226.674737][ T1025] ata1.00: cmd 61/00:28:36:e1:04/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 226.674737][ T1025] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 226.683626][ T1025] ata1.00: status: { DRDY } [ 226.686796][ T1025] ata1: hard resetting link [ 227.010602][ T1025] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 227.015860][ T1025] ata1.00: configured for UDMA/100 [ 227.021252][ T1025] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 227.069968][ T1025] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 227.079403][ T1025] ata1: failed to read log page 10h (errno=-5) [ 227.089470][ T1025] ata1.00: NCQ disabled due to excessive errors [ 227.099421][ T1025] ata1.00: exception Emask 0x1 SAct 0x80007d SErr 0x0 action 0x0 [ 227.108006][ T1025] ata1.00: irq_stat 0x40000000 [ 227.117993][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 227.121397][ T1025] ata1.00: cmd 61/c0:00:a6:1b:05/02:00:00:00:00/40 tag 0 ncq dma 360448 out [ 227.121397][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 227.144120][ T1025] ata1.00: status: { DRDY } [ 227.146659][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 227.151002][ T1025] ata1.00: cmd 61/c0:10:a6:23:05/02:00:00:00:00/40 tag 2 ncq dma 360448 out [ 227.151002][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 227.159956][ T1025] ata1.00: status: { DRDY } [ 227.162145][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 227.164970][ T1025] ata1.00: cmd 61/d0:18:66:26:05/1a:00:00:00:00/40 tag 3 ncq dma 3514368 ou [ 227.164970][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 227.174177][ T1025] ata1.00: status: { DRDY } [ 227.176595][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 227.179767][ T1025] ata1.00: cmd 61/00:20:36:41:05/20:00:00:00:00/40 tag 4 ncq dma 4194304 ou [ 227.179767][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 227.190015][ T1025] ata1.00: status: { DRDY } [ 227.192270][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 227.195170][ T1025] ata1.00: cmd 61/00:28:36:61:05/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 227.195170][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 227.204510][ T1025] ata1.00: status: { DRDY } [ 227.206779][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 227.210181][ T1025] ata1.00: cmd 61/30:30:36:81:05/07:00:00:00:00/40 tag 6 ncq dma 942080 out [ 227.210181][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 227.219195][ T1025] ata1.00: status: { DRDY } [ 227.221463][ T1025] ata1.00: failed command: WRITE FPDMA QUEUED [ 227.224603][ T1025] ata1.00: cmd 61/a0:b8:36:01:05/11:00:00:00:00/40 tag 23 ncq dma 2310144 ou [ 227.224603][ T1025] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 227.233895][ T1025] ata1.00: status: { DRDY } [ 227.238016][ T1025] ata1.00: configured for UDMA/100 [ 227.242749][ T1025] ata1: EH complete Setting up swapspace version 1, size = 127995904 bytes [ 229.194968][ T5296] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 236.559239][ T5336] 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. [ 241.354264][ T4650] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 241.365103][ T4650] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 241.370164][ T4650] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 241.379641][ T4650] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 241.385345][ T4650] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 243.449379][ T4650] Bluetooth: hci0: command tx timeout [ 244.439883][ T1055] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 244.462131][ T1055] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 246.750389][ T79] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 246.788778][ T79] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 246.878224][ T5339] bridge0: port 1(bridge_slave_0) entered blocking state [ 246.905510][ T5339] bridge0: port 1(bridge_slave_0) entered disabled state [ 246.924310][ T5339] bridge_slave_0: entered allmulticast mode [ 246.956227][ T5339] bridge_slave_0: entered promiscuous mode [ 247.037655][ T5339] bridge0: port 2(bridge_slave_1) entered blocking state [ 247.071447][ T5339] bridge0: port 2(bridge_slave_1) entered disabled state [ 247.118181][ T5339] bridge_slave_1: entered allmulticast mode [ 247.131786][ T5339] bridge_slave_1: entered promiscuous mode [ 247.907908][ T5339] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 247.930057][ T5339] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 248.423025][ T5339] team0: Port device team_slave_0 added [ 248.726224][ T5339] team0: Port device team_slave_1 added [ 249.521948][ T5339] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 249.537729][ T5339] 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. [ 249.567619][ T5339] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 249.596706][ T5339] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 249.617044][ T5339] 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. [ 249.659847][ T5339] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 250.421242][ T5339] hsr_slave_0: entered promiscuous mode [ 250.438693][ T5339] hsr_slave_1: entered promiscuous mode [ 256.560626][ T5339] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 256.624931][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 256.650303][ T5339] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 256.701957][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 256.720865][ T5339] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 256.755426][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 256.768796][ T5339] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 256.795662][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 258.109218][ T5339] 8021q: adding VLAN 0 to HW filter on device bond0 [ 258.649293][ T5339] 8021q: adding VLAN 0 to HW filter on device team0 [ 258.682969][ T1055] bridge0: port 1(bridge_slave_0) entered blocking state [ 258.687187][ T1055] bridge0: port 1(bridge_slave_0) entered forwarding state [ 259.057828][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 259.062753][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 261.792865][ T5339] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 262.588763][ T5339] veth0_vlan: entered promiscuous mode [ 262.648927][ T5339] veth1_vlan: entered promiscuous mode [ 262.888428][ T5339] veth0_macvtap: entered promiscuous mode [ 262.928031][ T5339] veth1_macvtap: entered promiscuous mode [ 263.029522][ T5339] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 263.091175][ T5339] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 263.152180][ T1055] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 263.179632][ T1055] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 263.199187][ T1055] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 263.203632][ T1055] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/28 17:06:45 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-build433558758=/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 d1b870e1003b 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/cc47L43a.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