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) qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:14324' (ED25519) to the list of known hosts. 2026/06/12 10:03:05 parsed 1 programs [ 96.921321][ T803] cfg80211: failed to load regulatory.db [ 96.970479][ T5301] cgroup: Unknown subsys name 'net' [ 97.024960][ T5301] cgroup: Unknown subsys name 'cpuset' [ 97.031774][ T5301] cgroup: Unknown subsys name 'rlimit' [ 142.998923][ T1333] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.001861][ T1333] ieee802154 phy1 wpan1: encryption failed: -22 [ 151.336678][ T1029] ata1.00: exception Emask 0x0 SAct 0x40000020 SErr 0x0 action 0x6 frozen [ 151.340391][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 151.342948][ T1029] ata1.00: cmd 61/00:28:36:41:05/20:00:00:00:00/40 tag 5 ncq dma 4194304 ou [ 151.342948][ T1029] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 151.350986][ T1029] ata1.00: status: { DRDY } [ 151.353399][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 151.355972][ T1029] ata1.00: cmd 61/00:f0:36:81:04/20:00:00:00:00/40 tag 30 ncq dma 4194304 ou [ 151.355972][ T1029] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 151.363251][ T1029] ata1.00: status: { DRDY } [ 151.365798][ T1029] ata1: hard resetting link [ 151.687749][ T1029] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 151.693181][ T1029] ata1.00: configured for UDMA/100 [ 151.696706][ T1029] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xa8000) [ 151.824509][ T1029] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 151.836543][ T1029] ata1: failed to read log page 10h (errno=-5) [ 151.845530][ T1029] ata1.00: NCQ disabled due to excessive errors [ 151.849063][ T1029] ata1.00: exception Emask 0x1 SAct 0x4000 SErr 0x0 action 0x0 [ 151.852581][ T1029] ata1.00: irq_stat 0x41000008 [ 151.854635][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 151.857479][ T1029] ata1.00: cmd 61/40:70:2e:df:05/05:00:00:00:00/40 tag 14 ncq dma 688128 out [ 151.857479][ T1029] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 151.864552][ T1029] ata1.00: status: { DRDY } [ 151.866768][ T1029] ata1.00: error: { ABRT } [ 151.869630][ T1029] ata1.00: configured for UDMA/100 [ 151.871858][ T1029] ata1: EH complete [ 153.371611][ T5301] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 157.579823][ 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. [ 159.758885][ T44] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 159.764260][ T44] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 159.768192][ T44] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 159.772455][ T44] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 159.781847][ T44] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 161.221589][ T14] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 161.232375][ T14] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 161.305075][ T1154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 161.314995][ T1154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 166.133448][ T5402] bridge0: port 1(bridge_slave_0) entered blocking state [ 166.146715][ T5402] bridge0: port 1(bridge_slave_0) entered disabled state [ 166.150836][ T5402] bridge_slave_0: entered allmulticast mode [ 166.159888][ T5402] bridge_slave_0: entered promiscuous mode [ 166.179174][ T5402] bridge0: port 2(bridge_slave_1) entered blocking state [ 166.182490][ T5402] bridge0: port 2(bridge_slave_1) entered disabled state [ 166.189384][ T5402] bridge_slave_1: entered allmulticast mode [ 166.198551][ T5402] bridge_slave_1: entered promiscuous mode [ 166.260254][ T5402] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 166.280456][ T5402] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 166.330708][ T5402] team0: Port device team_slave_0 added [ 166.335977][ T5402] team0: Port device team_slave_1 added [ 166.384572][ T5402] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 166.396447][ T5402] 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. [ 166.417128][ T5402] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 166.429596][ T5402] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 166.436622][ T5402] 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. [ 166.466818][ T5402] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 166.538923][ T5402] hsr_slave_0: entered promiscuous mode [ 166.542840][ T5402] hsr_slave_1: entered promiscuous mode [ 166.885096][ T5402] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 166.909488][ T5402] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 166.919608][ T5402] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 166.937752][ T5402] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 166.942965][ T5402] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 166.972126][ T5402] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 166.983369][ T5402] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 167.000565][ T5402] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 167.181463][ T5402] 8021q: adding VLAN 0 to HW filter on device bond0 [ 167.228159][ T5402] 8021q: adding VLAN 0 to HW filter on device team0 [ 167.244463][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 167.248237][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 167.278334][ T14] bridge0: port 2(bridge_slave_1) entered blocking state [ 167.281117][ T14] bridge0: port 2(bridge_slave_1) entered forwarding state [ 167.696783][ T5402] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 167.743776][ T5402] veth0_vlan: entered promiscuous mode [ 167.756639][ T5402] veth1_vlan: entered promiscuous mode [ 167.795132][ T5402] veth0_macvtap: entered promiscuous mode [ 167.806129][ T5402] veth1_macvtap: entered promiscuous mode [ 167.831421][ T5402] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 167.843870][ T5402] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 167.860052][ T52] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 167.872201][ T52] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 167.890954][ T52] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 167.908823][ T52] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/06/12 10:04:18 executed programs: 0 [ 168.124486][ T4660] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 168.129696][ T4660] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 168.135087][ T4660] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 168.140887][ T4660] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 168.144368][ T4660] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 168.243196][ T14] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 168.334770][ T14] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 168.832363][ T5438] bridge0: port 1(bridge_slave_0) entered blocking state [ 168.835677][ T5438] bridge0: port 1(bridge_slave_0) entered disabled state [ 168.846965][ T5438] bridge_slave_0: entered allmulticast mode [ 168.852186][ T5438] bridge_slave_0: entered promiscuous mode [ 168.863612][ T5438] bridge0: port 2(bridge_slave_1) entered blocking state [ 168.866910][ T5438] bridge0: port 2(bridge_slave_1) entered disabled state [ 168.869899][ T5438] bridge_slave_1: entered allmulticast mode [ 168.873297][ T5438] bridge_slave_1: entered promiscuous mode [ 168.897363][ T5438] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 168.903741][ T5438] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 168.946881][ T5438] team0: Port device team_slave_0 added [ 168.958898][ T5438] team0: Port device team_slave_1 added [ 169.005019][ T5438] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 169.017939][ T5438] 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. [ 169.043927][ T5438] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 169.053078][ T5438] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 169.066792][ T5438] 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. [ 169.088413][ T5438] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 169.138913][ T5438] hsr_slave_0: entered promiscuous mode [ 169.141849][ T5438] hsr_slave_1: entered promiscuous mode [ 169.144519][ T5438] debugfs: 'hsr0' already exists in 'hsr' [ 169.148128][ T5438] Cannot create hsr debugfs directory [ 169.163525][ T14] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 169.930718][ T14] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 170.197442][ T4660] Bluetooth: hci0: command tx timeout [ 170.782582][ T14] bridge_slave_1: left allmulticast mode [ 170.793815][ T14] bridge_slave_1: left promiscuous mode [ 170.804558][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 170.819489][ T14] bridge_slave_0: left allmulticast mode [ 170.821989][ T14] bridge_slave_0: left promiscuous mode [ 170.825042][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 170.974546][ T14] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 170.981960][ T14] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 170.989982][ T14] bond0 (unregistering): Released all slaves [ 171.099050][ T14] hsr_slave_0: left promiscuous mode [ 171.101773][ T14] hsr_slave_1: left promiscuous mode [ 171.104456][ T14] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 171.111170][ T14] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 171.119232][ T14] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 171.124476][ T14] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 171.135826][ T14] veth1_macvtap: left promiscuous mode [ 171.138993][ T14] veth0_macvtap: left promiscuous mode [ 171.141503][ T14] veth1_vlan: left promiscuous mode [ 171.143859][ T14] veth0_vlan: left promiscuous mode [ 171.352647][ T14] team0 (unregistering): Port device team_slave_1 removed [ 171.363068][ T14] team0 (unregistering): Port device team_slave_0 removed [ 171.931240][ T5438] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 171.948675][ T5438] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 171.960089][ T5438] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 171.982264][ T5438] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 171.993841][ T5438] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 172.003374][ T5438] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 172.018423][ T5438] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 172.032900][ T5438] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 172.186166][ T5438] 8021q: adding VLAN 0 to HW filter on device bond0 [ 172.219931][ T5438] 8021q: adding VLAN 0 to HW filter on device team0 [ 172.240223][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 172.243549][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 172.270836][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 172.273859][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 172.277644][ T4660] Bluetooth: hci0: command tx timeout [ 172.721157][ T5438] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 172.760077][ T5438] veth0_vlan: entered promiscuous mode [ 172.769793][ T5438] veth1_vlan: entered promiscuous mode [ 172.802746][ T5438] veth0_macvtap: entered promiscuous mode [ 172.809467][ T5438] veth1_macvtap: entered promiscuous mode [ 172.824575][ T5438] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 172.841628][ T5438] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 172.852112][ T148] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 172.863722][ T148] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 172.872026][ T148] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 172.885468][ T148] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 173.005910][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 173.010971][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 173.131806][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 173.143667][ T148] 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-build1501974685=/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 66aeb999f37a 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 go fmt ./sys/... >/dev/null touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=66aeb999f37ab41e95f08d1da821200313f71342 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241028-182907'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -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 -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"66aeb999f37ab41e95f08d1da821200313f71342\" /usr/bin/ld: /tmp/cc0PCk2a.o: in function `test_cover_filter()': executor.cc:(.text+0x1693b): warning: the use of `tempnam' is dangerous, better use `mkstemp' /usr/bin/ld: /tmp/cc0PCk2a.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