failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/managers/setuid/latest.tmp/key" "root@10.128.0.41" "pwd"]: exit status 255
ssh: connect to host 10.128.0.41 port 22: Operation timed out
Pseudo-terminal will not be allocated because stdin is not a terminal.
Warning: Permanently added '[ssh-serialport.googleapis.com]:9600' (RSA) to the list of known hosts.
SeaBIOS (version 1.8.2-google)
Total RAM Size = 0x0000000080000000 = 2048 MiB
CPUs found: 2     Max CPUs supported: 2
SeaBIOS (version 1.8.2-google)
Machine UUID 2ffbf60f-4683-f0e0-1acc-7f9d57ca005d
found virtio-scsi at 0:3
virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
drive 0x000f2890: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Sending Seabios boot VM event.
Booting from Hard Disk 0...
>> OpenBSD/amd64 BOOT 3.65

boot> 

|/-\|/-\|/booting hd0a:/bsd: -\|/-\24557493|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-+4183056\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-+950304\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|+0+1298432/ [1340037-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|+128+1592256/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/+1046216-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/]=0x215b990

-\|/-\|/entry point at 0xffffffff81001000

[ using 3979664 bytes of bsd ELF symbol table ]

Copyright (c) 1982, 1986, 1989, 1991, 1993

	The Regents of the University of California.  All rights reserved.

Copyright (c) 1995-2023 OpenBSD. All rights reserved.  https://www.OpenBSD.org


OpenBSD 7.4-current (SYZKALLER) #0: Fri Oct  6 02:29:22 PDT 2023

    root@ci-openbsd.c.syzkaller.internal:/syzkaller/managers/setuid/kernel/sys/arch/amd64/compile/SYZKALLER

real mem = 2130694144 (2031MB)

avail mem = 2014650368 (1921MB)

random: good seed from bootblocks

mpath0 at root

scsibus0 at mpath0: 256 targets

mainbus0 at root

bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xf2920 (12 entries)

bios0: vendor Google version "Google" date 09/06/2023

bios0: Google Google Compute Engine

acpi0 at bios0: ACPI 2.0

acpi0: sleep states S3 S4 S5

acpi0: tables DSDT FACP SRAT APIC SSDT WAET

acpi0: wakeup devices

acpitimer0 at acpi0: 3579545 Hz, 24 bits

acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat

cpu0 at mainbus0: apid 0 (boot processor)

cpu0: Intel(R) Xeon(R) CPU @ 2.20GHz, 2200.27 MHz, 06-4f-00

cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT,SSE3,PCLMUL,VMX,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,ITSC,FSGSBASE,TSC_ADJUST,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,MD_CLEAR,IBRS,IBPB,STIBP,SSBD,ARAT,RSBA,SKIP_L1DFL,IF_PSCHANGE,XSAVEOPT,MELTDOWN

cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 256KB 64b/line 8-way L2 cache, 55MB 64b/line 20-way L3 cache

cpu0: smt 0, core 0, package 0

mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges

cpu0: apic clock running at 1000MHz

cpu1 at mainbus0: apid 1 (application processor)

cpu1: Intel(R) Xeon(R) CPU @ 2.20GHz, 2200.32 MHz, 06-4f-00

cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT,SSE3,PCLMUL,VMX,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,ITSC,FSGSBASE,TSC_ADJUST,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,MD_CLEAR,IBRS,IBPB,STIBP,SSBD,ARAT,RSBA,SKIP_L1DFL,IF_PSCHANGE,XSAVEOPT,MELTDOWN

cpu1: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 256KB 64b/line 8-way L2 cache, 55MB 64b/line 20-way L3 cache

cpu1: smt 1, core 0, package 0

ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins

acpiprt0 at acpi0: bus 0 (PCI0)

"ACPI0006" at acpi0 not configured

acpipci0 at acpi0 PCI0

acpicmos0 at acpi0

com0 at acpi0 COM1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo

com0: console

com1 at acpi0 COM2 addr 0x2f8/0x8 irq 3: ns16550a, 16 byte fifo

com2 at acpi0 COM3 addr 0x3e8/0x8 irq 6: ns16550a, 16 byte fifo

com3 at acpi0 COM4 addr 0x2e8/0x8 irq 7: ns16550a, 16 byte fifo

"QEMU0001" at acpi0 not configured

"ACPI0007" at acpi0 not configured

"ACPI0007" at acpi0 not configured

acpicpu0 at acpi0: C1(@1 halt!)

acpicpu1 at acpi0: C1(@1 halt!)

cpu0: using VERW MDS workaround

pvbus0 at mainbus0: KVM

pvclock0 at pvbus0

pci0 at mainbus0 bus 0

pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02

pcib0 at pci0 dev 1 function 0 "Intel 82371AB PIIX4 ISA" rev 0x03

piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: SMBus disabled

virtio0 at pci0 dev 3 function 0 "Qumranet Virtio SCSI" rev 0x00

vioscsi0 at virtio0: qsize 8192

scsibus1 at vioscsi0: 253 targets

sd0 at scsibus1 targ 1 lun 0: <Google, PersistentDisk, 1> serial.Google_PersistentDisk_

sd0: 2048MB, 512 bytes/sector, 4194304 sectors, thin

virtio0: msix per-VQ

virtio1 at pci0 dev 4 function 0 "Qumranet Virtio Network" rev 0x00

vio0 at virtio1: address 42:01:0a:80:00:29

witness: lock_object uninitialized: 0xffff8000001a1578

Starting stack trace...

witness_checkorder(ffff8000001a1578,9,0,ffff8000001a1578,8262cb3656affb6c,ffff8000001a1550) at witness_checkorder+0x137

mtx_enter(ffff8000001a1568,ffff8000001a1568,18de01d8c3ee0d3c,ffff8000001a1550,fff,ffff8000001a1568) at mtx_enter+0x3e

ifq_set_maxlen(ffff8000001a1550,fff,ffff8000001a1050,ffff800000024c00,ffff8000001a12a8,ffff8000001a1050) at ifq_set_maxlen+0x28

vio_attach(ffff800000024c00,ffff8000001a1000,ffff800000024c00,ffff800000024c00,e74dea601d794b29,ffffffff82b6b680) at vio_attach+0x5b7

config_attach(ffff800000024c00,ffffffff82bede98,ffff800000024c00,0,f236e755dc901d76,0) at config_attach+0x33a

virtio_pci_attach(ffff80000002de00,ffff800000024c00,ffffffff83162a10,ffff80000002de00,ade7124ceb4e0e43,ffffffff82c06300) at virtio_pci_attach+0x24d

config_attach(ffff80000002de00,ffffffff82bf0128,ffffffff83162a10,ffffffff81a75110,f236e755dc42b47b,ffff80000007b180) at config_attach+0x33a

pci_probe_device(ffff80000002de00,80002000,0,0,622aaa34a6f34cb4,0) at pci_probe_device+0x730

pci_enumerate_bus(ffff80000002de00,0,0,ffff80000002de00,3200847da85a817f,ffffffff82bd58f0) at pci_enumerate_bus+0x260

config_attach(ffff80000002b280,ffffffff82bedfe8,ffffffff83162c60,ffffffff819a78e0,f236e755dc7f968a,ffff80000002db00) at config_attach+0x33a

acpipci_attach_bus(ffff80000002b280,ffff80000002db00,8262cb3656516bb8,2,ffff80000002b280,1) at acpipci_attach_bus+0x261

acpipci_attach_busses(ffff80000002b280,ffff80000002b280,553f53c54f3721a4,1,ffff80000002b280,ffffffff82bf3890) at acpipci_attach_busses+0x6a

mainbus_attach(0,ffff80000002b280,0,0,dddeef9c33fc15cb,ffffffff82b9cfa0) at mainbus_attach+0x24e

config_attach(0,ffffffff82bedb18,0,0,f236e755dcb41e97,0) at config_attach+0x33a

cpu_configure(ef92df5158acf84,0,ffff800000028000,ffff80000002e000,ffffffff8151f0ac,ffffffff83162f00) at cpu_configure+0x3c

main(0,0,0,0,0,1) at main+0x401

end trace frame: 0x0, count: 241

End of stack trace.

Stopped at      db_enter+0x1c:  addq    $0x8,%rsp

ddb{0}> serialport: Connected to syzkaller.us-central1-b.ci-openbsd-setuid-test-2 port 1 (session ID: dd2b2aefa09ecc67c30424d1fd31fef5373b2eca26623faf404e20362c7553b8, active connections: 1).