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Re: [PATCH v2] fix bit fields extraction and prevent overflow
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From: |
Peter Maydell |
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Subject: |
Re: [PATCH v2] fix bit fields extraction and prevent overflow |
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Date: |
Tue, 30 Apr 2024 15:45:12 +0100 |
On Sun, 28 Apr 2024 at 19:11, Alexandra Diupina <adiupina@astralinux.ru> wrote:
>
> Add a type cast and use extract64() instead of extract32()
> to avoid integer overflow on addition. Fix bit fields
> extraction according to documentation.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: d3c6369a96 ("introduce xlnx-dpdma")
> Signed-off-by: Alexandra Diupina <adiupina@astralinux.ru>
Thanks; I've applied this to target-arm.next, and it'll go into
a pullreq sometime this week. (I tweaked the commit message to
add a bit of the context and the docs URL from the other
email thread.)
-- PMM