Messages in this thread Patch in this message | | | Date | Thu, 04 Feb 2010 09:12:13 -0800 | From | Greg KH <> | Subject | [42/74] x86/amd-iommu: Fix possible integer overflow |
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2.6.32-stable review patch. If anyone has any objections, please let us know.
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From: Joerg Roedel <joerg.roedel@amd.com>
commit d91afd15b041f27d34859c79afa9e172018a86f4 upstream.
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.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- arch/x86/kernel/amd_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -540,7 +540,7 @@ static void flush_all_devices_for_iommu( static void flush_devices_by_domain(struct protection_domain *domain) { struct amd_iommu *iommu; - int i; + unsigned long i; for (i = 0; i <= amd_iommu_last_bdf; ++i) { if ((domain == NULL && amd_iommu_pd_table[i] == NULL) ||
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