panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/main/kernel/sys/net/if_tun.c", line 315
Starting stack trace...
panic(ffffffff8276d0a4) at panic+0x159 sys/kern/subr_prf.c:229
__assert(ffffffff827ecf06,ffffffff82821f80,13b,ffffffff828021fc) at __assert+0x29 sys/kern/subr_prf.c:157
tun_clone_destroy(ffff800000cf5000) at tun_clone_destroy+0x234 sys/net/if_tun.c:315
if_clone_destroy(ffff800027bd27b0) at if_clone_destroy+0x132 sys/net/if.c:1318
sys_ioctl(ffff800027c0a0e8,ffff800027bd28c0,ffff800027bd2910) at sys_ioctl+0x49e
syscall(ffff800027bd2990) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:632
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc74d3b98080, count: 250
End of stack trace.
syncing disks...22 9  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 a0530fd3-c3ad-b54d-95aa-ef4c7d9dfdbd
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 0x000f2850: 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 3.56
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