Re: [PATCH 1/6] xen/gntdev: Fix dmabuf import with non-zero sgt offset
From: Oleksandr Andrushchenko
Date: Tue Aug 04 2020 - 06:34:34 EST
On 8/4/20 9:11 AM, Jürgen Groß wrote:
> On 31.07.20 14:51, Oleksandr Andrushchenko wrote:
>> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
>> It is possible that the scatter-gather table during dmabuf import has
>> non-zero offset of the data, but user-space doesn't expect that.
>> Fix this by failing the import, so user-space doesn't access wrong data.
>> Fixes: 37ccb44d0b00 ("xen/gntdev: Implement dma-buf import functionality")
> I can't find this commit in the tree. Did you mean bf8dc55b1358?
I'll double-check, thank you
> And don't you want to Cc stable for this patch, too?
Hm, yes, sounds reasonable
>> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
> Acked-by: Juergen Gross <jgross@xxxxxxxx>