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Date:   Sat, 29 Oct 2016 20:52:11 -0400 (EDT)
From:   David Miller <>
Subject: Re: [PATCH net] qede: Fix out-of-bound fastpath memory access

From: Yuval Mintz <>
Date: Sat, 29 Oct 2016 17:04:35 +0300

> Driver allocates a shadow array for transmitted SKBs with X entries;
> That means valid indices are {0,...,X - 1}. [X == 8191]
> Problem is the driver also uses X as a mask for a
> producer/consumer in order to choose the right entry in the
> array which allows access to entry X which is out of bounds.
> To fix this, simply allocate X + 1 entries in the shadow array.
> Signed-off-by: Yuval Mintz <>


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