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Re: [Qemu-devel] [PATCH v2] exec: Fix non-power-of-2 sized accesses
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From: |
Laszlo Ersek |
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Subject: |
Re: [Qemu-devel] [PATCH v2] exec: Fix non-power-of-2 sized accesses |
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Date: |
Fri, 16 Aug 2013 15:37:35 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130806 Thunderbird/17.0.8 |
On 08/16/13 14:50, Alex Williamson wrote:
> Since commit 23326164 we align access sizes to match the alignment of
> the address, but we don't align the access size itself. This means we
> let illegal access sizes (ex. 3) slip through if the address is
> sufficiently aligned (ex. 4). This results in an abort which would be
> easy for a guest to trigger. Account for aligning the access size.
>
> Signed-off-by: Alex Williamson <address@hidden>
> Cc: address@hidden
> Reviewed-by: Laszlo Ersek <address@hidden>
yeah
> ---
>
> v2: Remove unnecessary loop condition
>
> exec.c | 7 +++++++
> 1 file changed, 7 insertions(+)