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(ffffffff8259b217) at panic+0x16b sys/kern/subr_prf.c:233
__assert(ffffffff82612c02,ffffffff82659a6e,131,ffffffff82623ee4) at __assert+0x25 sys/kern/subr_prf.c:161
tun_clone_destroy(ffff800000ed9800) at tun_clone_destroy+0x278 sys/net/if_tun.c:305
if_clone_destroy(ffff80002c75b900) at if_clone_destroy+0x132 sys/net/if.c:1219
soo_ioctl(fffffd80708f1720,80206979,ffff80002c75b900,ffff8000211f0fc0) at soo_ioctl+0x26c
sys_ioctl(ffff8000211f0fc0,ffff80002c75ba18,ffff80002c75ba70) at sys_ioctl+0x4a2
syscall(ffff80002c75bae0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff80002c75bae0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3b3317f350, count: 249
End of stack trace.
syncing disks...20 10  done

dump to dev 4,1 not possible
rpebnitci ge..el diagnosticSeaBIOS (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 70cc8852-3e3d-1621-491f-9b3abbe0e2d7
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> set $lines = 0
set: syntax error
boot> set $maxwidth = 0
set: syntax error
boot> show panic
boot: illegal argument panic
boot> trace
boot> show registers
boot> show proc
boot> ps
boot> show all locks
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