netdev - Re: [PATCH v2] [net] Free cookie before we memdup a new one

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Message-Id: <20190611.090623.1410739893357351709.davem@davemloft.net>
Date:   Tue, 11 Jun 2019 09:06:23 -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 v2] [net] Free cookie before we memdup a new one

From: Neil Horman <nhorman@...driver.com>
Date: Tue, 11 Jun 2019 07:21:28 -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.
> 
> ---
> Change notes
> v1->v2
> update subsystem tag in subject (davem)

Subsystem tag is "sctp: " which still isn't there :-)