Reference in a new issue

Blame

Copy permalink

Reference in a new issue

Copy permalink

Juergen Gross 298d275d4d xen/gntdev: avoid out of bounds access in case of partial gntdev_mmap() ...

In case gntdev_mmap() succeeds only partially in mapping grant pages
it will leave some vital information uninitialized needed later for
cleanup. This will lead to an out of bounds array access when unmapping
the already mapped pages.

So just initialize the data needed for unmapping the pages a little bit
earlier.

Cc: <stable@vger.kernel.org>
Reported-by: Arthur Borsboom <arthurborsboom@gmail.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

2017-10-25 12:48:13 -04:00

1123 lines

27 KiB

Raw Permalink Blame History