linux-kernel - Re: [1/2] b43: fix unitialized reads of ret by initializing the array to zero

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Date:   Wed, 20 Sep 2017 12:41:24 +0000 (UTC)
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Colin Ian King <colin.king@...onical.com>
Cc:     linux-wireless@...r.kernel.org, b43-dev@...ts.infradead.org,
        netdev@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [1/2] b43: fix unitialized reads of ret by initializing the array
 to zero

Colin Ian King <colin.king@...onical.com> wrote:

> From: Colin Ian King <colin.king@...onical.com>
> 
> The u8 char array ret is not being initialized and elements outside
> the range start to end contain just garbage values from the stack.
> This results in a later scan of the array to read potentially
> uninitialized values.  Fix this by initializing the array to zero.
> This seems to have been an issue since the very first commit.
> 
> Detected by CoverityScan CID#139652 ("Uninitialized scalar variable")
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> Reviewed-by: Michael Buesch <m@...s.ch>

2 patches applied to wireless-drivers-next.git, thanks.

e31fbe1034d9 b43: fix unitialized reads of ret by initializing the array to zero
e3ae1c772046 b43legacy: fix unitialized reads of ret by initializing the array to zero

-- 
https://patchwork.kernel.org/patch/9939435/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches