[Spice-devel] [PATCH] memslot: do not crash if guest provide a wrong address

Frediano Ziglio fziglio at redhat.com
Tue Mar 29 10:03:24 UTC 2016


> 
> Hey,
> 
> I believe this could be pushed to the 0.12 branch as well?
> 
> Christophe
> 

Agreed

Frediano

> On Thu, Feb 18, 2016 at 09:49:45AM +0000, Frediano Ziglio wrote:
> > This could happen with buggy driver.
> > 
> > Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
> > ---
> >  server/memslot.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/server/memslot.c b/server/memslot.c
> > index 768762b..99c63e4 100644
> > --- a/server/memslot.c
> > +++ b/server/memslot.c
> > @@ -61,7 +61,7 @@ int memslot_validate_virt(RedMemSlotInfo *info, unsigned
> > long virt, int slot_id,
> >  
> >      if (virt < slot->virt_start_addr || (virt + add_size) >
> >      slot->virt_end_addr) {
> >          print_memslots(info);
> > -        spice_critical("virtual address out of range\n"
> > +        spice_warning("virtual address out of range\n"
> >                "    virt=0x%lx+0x%x slot_id=%d group_id=%d\n"
> >                "    slot=0x%lx-0x%lx delta=0x%lx",
> >                virt, add_size, slot_id, group_id,



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