Re: [PATCH 1/6] xen/gntdev: Fix dmabuf import with non-zero sgt offset

From: Jürgen Groß
Date: Tue Aug 04 2020 - 02:11:52 EST


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?

And don't you want to Cc stable for this patch, too?


Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>

Acked-by: Juergen Gross <jgross@xxxxxxxx>


Juergen