Re: [PATCH 5/6] hw/block: validate the fdc sector position fits within bounds

Am 19.08.2026 um 11:22 hat Alex Bennée geschrieben:
> Previously the guest controlled the value of last_sec and wasn't
> particularly careful to check it didn't exceed the media size. We
> can't re-use drv->last_sec as that changes as we do operations so we
> set media_last_sect when the geometry is probed.
> 
> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3800
> Signed-off-by: Alex Bennée <[email protected]>

If it's not too hard, I would appreciate a qtest case that reproduces
the problem in the pre-patch state and shows that the behaviour
afterwards is right, including after media change to a floppy of a
different size.

Kevin