netdev - Re: [PATCH] Free cookie before we memdup a new one

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Message-Id: <20190610.093816.262800300265390788.davem@davemloft.net>
Date:   Mon, 10 Jun 2019 09:38:16 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     nhorman@...driver.com
Cc:     linux-sctp@...r.kernel.org, netdev@...r.kernel.org,
        marcelo.leitner@...il.com, lucien.xin@...il.com
Subject: Re: [PATCH] Free cookie before we memdup a new one

From: Neil Horman <nhorman@...driver.com>
Date: Mon, 10 Jun 2019 12:34:56 -0400

> Based on comments from Xin, even after fixes for our recent syzbot
> report of cookie memory leaks, its possible to get a resend of an INIT
> chunk which would lead to us leaking cookie memory.
> 
> To ensure that we don't leak cookie memory, free any previously
> allocated cookie first.
> 
> Signed-off-by: Neil Horman <nhorman@...driver.com>

Please post with an appropriate subsystem prefix in the Subject.

Thank you.