linux-kernel - Re: [PATCH v2] net: initialize msg.msg

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Date:   Thu, 09 Mar 2017 17:21:53 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     glider@...gle.com
Cc:     dvyukov@...gle.com, kcc@...gle.com, edumazet@...gle.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2] net: initialize msg.msg_flags in recvfrom

From: Alexander Potapenko <glider@...gle.com>
Date: Wed,  8 Mar 2017 18:08:16 +0100

> KMSAN reports a use of uninitialized memory in put_cmsg() because
> msg.msg_flags in recvfrom haven't been initialized properly.
> The flag values don't affect the result on this path, but it's still a
> good idea to initialize them explicitly.
> 
> Signed-off-by: Alexander Potapenko <glider@...gle.com>
> ---
> Changes since v1:
>  - removed KMSAN report and reproducer from the description

Applied, thank you.