[alsa-devel] [PATCH v2 2/2] ASoC: Intel: Skylake: Add DSP firmware manifest parsing

Vinod Koul vinod.koul at intel.com
Fri Apr 22 05:13:51 CEST 2016


On Thu, Apr 21, 2016 at 05:07:13PM +0100, Mark Brown wrote:
> On Thu, Apr 21, 2016 at 11:45:23AM +0530, Vinod Koul wrote:
> 
> > +	num_entry = adsp_hdr->num_module_entries;
> > +
> > +	tbl = devm_kzalloc(ctx->dev,
> > +		num_entry * sizeof(struct uuid_tbl), GFP_KERNEL);
> > +
> > +	if (!tbl)
> > +		return -ENOMEM;
> 
> I'm still not seeing any bounds checking to make sure we don't read
> beyond the end of the firmware file.

Since we are using  adsp_hdr->num_module_entrie for parsing technically we
should not go beyond.

But yes if the file goes bad then we might have an issue, we will add check
for that

Thanks
-- 
~Vinod
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: Digital signature
URL: <http://mailman.alsa-project.org/pipermail/alsa-devel/attachments/20160422/78628d41/attachment-0001.sig>


More information about the Alsa-devel mailing list