This is a note to let you know that I've just added the patch titled
vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
to the 5.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
vfio-avoid-possible-overflow-in-vfio_iommu_type1_pin_pages.patch
and it can be found in the queue-5.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0ea971f8dcd6dee78a9a30ea70227cf305f11ff7 Mon Sep 17 00:00:00 2001
From: Yan Zhao <yan.y.zhao@xxxxxxxxx>
Date: Wed, 8 Apr 2020 03:12:34 -0400
Subject: vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
From: Yan Zhao <yan.y.zhao@xxxxxxxxx>
commit 0ea971f8dcd6dee78a9a30ea70227cf305f11ff7 upstream.
add parentheses to avoid possible vaddr overflow.
Fixes: a54eb55045ae ("vfio iommu type1: Add support for mediated devices")
Signed-off-by: Yan Zhao <yan.y.zhao@xxxxxxxxx>
Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/vfio/vfio_iommu_type1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -554,7 +554,7 @@ static int vfio_iommu_type1_pin_pages(vo
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)
Patches currently in stable-queue which might be from yan.y.zhao@xxxxxxxxx are
queue-5.6/vfio-avoid-possible-overflow-in-vfio_iommu_type1_pin_pages.patch
