Hi David,
On Wed, 2020-12-16 at 11:03 +, David Laight wrote:
> From: Yong Wu
> > Sent: 16 December 2020 10:36
> >
> > Currently gather->end is "unsigned long" which may be overflow in
> > arch32 in the corner case: 0xfff0 + 0x10(iova + size).
> > Although it doesn't affect the size(en
On Wed, 2020-12-16 at 12:10 +, Robin Murphy wrote:
> On 2020-12-16 10:36, Yong Wu wrote:
> > Currently gather->end is "unsigned long" which may be overflow in
> > arch32 in the corner case: 0xfff0 + 0x10(iova + size).
> > Although it doesn't affect the size(end - start), it affects the
On 2020-12-16 10:36, Yong Wu wrote:
Currently gather->end is "unsigned long" which may be overflow in
arch32 in the corner case: 0xfff0 + 0x10(iova + size).
Although it doesn't affect the size(end - start), it affects the checking
"gather->end < end"
This won't help the same situation a
From: Yong Wu
> Sent: 16 December 2020 10:36
>
> Currently gather->end is "unsigned long" which may be overflow in
> arch32 in the corner case: 0xfff0 + 0x10(iova + size).
> Although it doesn't affect the size(end - start), it affects the checking
> "gather->end < end"
>
> Fixes: a7d20dc1
Currently gather->end is "unsigned long" which may be overflow in
arch32 in the corner case: 0xfff0 + 0x10(iova + size).
Although it doesn't affect the size(end - start), it affects the checking
"gather->end < end"
Fixes: a7d20dc19d9e ("iommu: Introduce struct iommu_iotlb_gather for batchi
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