On Tue, 08 Jan 2019 09:40:06 -0700
Alex Williamson <[email protected]> wrote:
> The below referenced commit adds a test for integer overflow, but in
> doing so prevents the unmap ioctl from ever including the last page of
> the address space. Subtract one to compare to the last address of the
> unmap to avoid the overflow and wrap-around.
>
> Fixes: 71a7d3d78e3c ("vfio/type1: silence integer overflow warning")
> Link: https://bugzilla.redhat.com/show_bug.cgi?id=1662291
> Cc: Dan Carpenter <[email protected]>
> Reported-by: Pei Zhang <[email protected]>
> Debugged-by: Peter Xu <[email protected]>
> Signed-off-by: Alex Williamson <[email protected]>
> ---
> drivers/vfio/vfio_iommu_type1.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Cornelia Huck <[email protected]>
