On Wed 17 Jun 2020 08:27:25 PM CEST, Connor Kuehl wrote: > Providing an empty string for the backing file parameter like so: > > qemu-img create -f qcow2 -b '' /tmp/foo > > allows the flow of control to reach and subsequently fail an assert > statement because passing an empty string to > > bdrv_get_full_backing_filename_from_filename() > > simply results in NULL being returned without an error being raised. > > To fix this, let's check for an empty string when getting the value from > the opts list. > > Reported-by: Attila Fazekas <afaze...@redhat.com> > Fixes: https://bugzilla.redhat.com/1809553 > Signed-off-by: Connor Kuehl <cku...@redhat.com>
Reviewed-by: Alberto Garcia <be...@igalia.com> Berto
