Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b4324db6 authored by Yan Zhao's avatar Yan Zhao Committed by Greg Kroah-Hartman
Browse files

vfio: avoid possible overflow in vfio_iommu_type1_pin_pages 



commit 0ea971f8dcd6dee78a9a30ea70227cf305f11ff7 upstream.

add parentheses to avoid possible vaddr overflow.

Fixes: a54eb550 ("vfio iommu type1: Add support for mediated devices")
Signed-off-by: default avatarYan Zhao <yan.y.zhao@intel.com>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 28acd21d

drivers/vfio/vfio_iommu_type1.c

+1 −1
Original line number Diff line number Diff line
@@ -591,7 +591,7 @@ static int vfio_iommu_type1_pin_pages(void *iommu_data, 
			continue;

		}



		remote_vaddr = dma->vaddr + iova - dma->iova;

		remote_vaddr = dma->vaddr + (iova - dma->iova);

		ret = vfio_pin_page_external(dma, remote_vaddr, &phys_pfn[i],

					     do_accounting);

		if (ret)