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Re: [Xen-devel] [PATCH v2 2/2] hvmloader: use bound checking in get_module_entry



>>> On 22.08.16 at 14:47, <wei.liu2@xxxxxxxxxx> wrote:
> Coverity complains:
> 
> overflow_before_widen: Potentially overflowing expression
> info->nr_modules * 32U with type unsigned int (32 bits, unsigned) is
> evaluated using 32-bit arithmetic, and then used in a context that
> expects an expression of type uint64_t (64 bits, unsigned).
> 
> The overflow is unlikely to happen in reality because we only expect a
> few modules.
> 
> Fix that by converting the check to use bound checking to placate
> Coverity.
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>


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