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Re: [Qemu-devel] [PATCH] Fix subtle integer overflow bug in memory API


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] Fix subtle integer overflow bug in memory API
Date: Thu, 15 Sep 2011 09:38:19 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2

On 09/15/2011 04:34 AM, David Gibson wrote:
explicit "if (a + b)<  a" tests in some places.

Please wrap these in a macro, since the addition has to be done in an unsigned type. Otherwise overflow is undefined.

Paolo



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