panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/main/kernel/sys/net/if_tun.c", line 305
Starting stack trace...
panic(ffffffff8255f8ec) at panic+0x155 sys/kern/subr_prf.c:233
__assert(ffffffff825d5679,ffffffff826083f3,131,ffffffff825ea273) at __assert+0x25 sys/kern/subr_prf.c:161
tun_clone_destroy(ffff800000bb8800) at tun_clone_destroy+0x234 sys/net/if_tun.c:305
if_clone_destroy(ffff80002e810ef0) at if_clone_destroy+0x132 sys/net/if.c:1218
sys_ioctl(ffff8000216762a0,ffff80002e811008,ffff80002e811060) at sys_ioctl+0x49e
syscall(ffff80002e8110d0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x76028720d90, count: 250
End of stack trace.
syncing disks...23 14  done

dump to dev 4,1 not possible
rebooting...
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 969d4b26-6dee-2bb7-7d35-48434919f208
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 0x000f2780: 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