Commit-ID: d91afd15b041f27d34859c79afa9e172018a86f4
Gitweb: http://git.kernel.org/tip/d91afd15b041f27d34859c79afa9e172018a86f4
Author: Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Fri, 22 Jan 2010 16:40:20 +0100
Committer: Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Fri, 22 Jan 2010 16:48:57 +0100
x86/amd-iommu: Fix possible integer overflow
The variable i in this function could be increased to over
2**32 which would result in an integer overflow when using
int. Fix it by changing i to unsigned long.
Cc: stable@xxxxxxxxxx
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
arch/x86/kernel/amd_iommu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 23824fe..c2ccbd7 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -980,7 +980,7 @@ static int alloc_new_range(struct dma_ops_domain *dma_dom,
{
int index = dma_dom->aperture_size >> APERTURE_RANGE_SHIFT;
struct amd_iommu *iommu;
- int i;
+ unsigned long i;
#ifdef CONFIG_IOMMU_STRESS
populate = false;
--
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