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Date:   Thu, 22 Sep 2016 01:49:20 -0400 (EDT)
From:   David Miller <>
Subject: Re: [PATCH] cxgb4: fix signed wrap around when decrementing index

From: Colin King <>
Date: Tue, 20 Sep 2016 15:48:45 +0100

> From: Colin Ian King <>
> Change predecrement compare to post decrement compare to avoid an
> unsigned integer wrap-around comparison when decrementing idx in
> the while loop.
> For example, when idx is zero, the current situation will
> predecrement idx in the while loop, wrapping idx to the maximum
> signed integer and cause out of bounds reads on rxq_info->msix_tbl[idx].
> Signed-off-by: Colin Ian King <>

This doesn't apply cleanly to the 'net' tree, please respin.

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