Re: [PATCH] crypto: ccp - zero the cmd data after use it

From: Liwei Song
Date: Tue Aug 04 2020 - 00:45:38 EST

On 8/4/20 12:22, Herbert Xu wrote:
> On Tue, Aug 04, 2020 at 12:20:21PM +0800, Liwei Song wrote:
>> Yes, the other process should do this zero work, but the case I met is
>> this address will appear in the slab_alloc_node() as freelist pointer of slub,
>> and before slub do zero wrok, even kzalloc() doesn't work with this address.
> That would be memory corruption which has nothing to do with your
> patch. If it is occurring then you should fix the place that is
> corrupting the memory and not work around it like this.

OK, understand, thanks for your suggestion.


> Cheers,