Re: [Qemu-devel] [PATCH for-4.1] roms: assert if max rom size is less than the used size

[Stefano Garzarella]

On Thu, Apr 11, 2019 at 01:28:18PM +0200, Igor Mammedov wrote:
> It would ensure that we would notice attempt to write beyond
> the allocated buffer. In case of MemoryRegion backed ROM it's
> the host buffer and the guest RAM otherwise.
> 
> assert can be triggered with:
>   dd if=/dev/zero of=/tmp/blob bs=63k count=1
>   qemu-system-x86_64 `for  i in {1..33}; do echo -n " -acpitable /tmp/blob"; 
> done`
> 
> Fixes: (a1666142db acpi-build: make ROMs RAM blocks resizeable)
> 
> Reported-by: Wei Yang <address@hidden>
> Signed-off-by: Igor Mammedov <address@hidden>
> ---
>  hw/core/loader.c | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Stefano Garzarella <address@hidden>
Tested-by: Stefano Garzarella <address@hidden>

Thanks,
Stefano