Re: [Xen-devel] [PATCH 21/29] tools/libxl: Allow adding larger amounts of prefixdata to datacopier

[Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>]

On 09/11/2014 01:01 PM, Ian Campbell wrote:
> On Wed, 2014-09-10 at 18:10 +0100, Andrew Cooper wrote:
> > From: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
> >
> > Previously, adding more than 1000 bytes of data would cause a segfault.
> Segfault is a symptom, not a cause, why does it happen?
struct libxl__datacopier_buf contains a fixed size 1000 byte statically 
allocated buffer so adding > 1000 bytes of data would cause it to 
overrun the buffer and overwrite other memory.
Regards
--
Ross Lagerwall

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