panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 305
Starting stack trace...
panic(ffffffff82599ed8) at panic+0x16b sys/kern/subr_prf.c:233
__assert(ffffffff82612f71,ffffffff8265b546,131,ffffffff82625706) at __assert+0x25 sys/kern/subr_prf.c:161
tun_clone_destroy(ffff800000d47800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305
if_clone_destroy(ffff800027f24cd0) at if_clone_destroy+0x132 sys/net/if.c:1221
soo_ioctl(fffffd806c62eef0,80206979,ffff800027f24cd0,ffff8000211e6a90) at soo_ioctl+0x26c
sys_ioctl(ffff8000211e6a90,ffff800027f24de8,ffff800027f24e40) at sys_ioctl+0x4a2
syscall(ffff800027f24eb0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800027f24eb0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xf2480aadb0, count: 249
End of stack trace.
syncing disks...29 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1  giving up

dump to dev 4,1 not possible
rpeabnoioct:i knegr.n..el
 diagnostic asSeaBIOS (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 fe2172e1-0ae4-3e3c-d45b-fa0270c0bf41
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 0x000f2730: 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 3.53
boot> show all locks
boot: illegal argument all
boot> show malloc
boot> show all pools
boot> machine ddbcpu 0
machine: syntax error
boot> trace
boot> machine ddbcpu 1
machine: syntax error
boot> trace