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Re: [Qemu-trivial] [Qemu-devel] [PATCH 1/2] exec.c: Fix off-by-one error


From: Avi Kivity
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH 1/2] exec.c: Fix off-by-one error in register_subpage
Date: Wed, 01 Aug 2012 15:56:38 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120717 Thunderbird/14.0

On 07/26/2012 01:45 AM, Tyler Hall wrote:
> subpage_register() expects "end" to be the last byte in the mapping.
> Registering a non-page-aligned memory region that extends up to or
> beyond a page boundary causes subpage_register() to silently fail
> through the (end >= PAGE_SIZE) check.
> 
> This bug does not cause noticeable problems for mappings that do not
> extend to a page boundary, though they do register an extra byte.

Reviewed-by: Avi Kivity <address@hidden>


-- 
error compiling committee.c: too many arguments to function



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