linux-kernel - Re: [PATCH v3] fs: affs: fix a memory leak in affs

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Date:   Wed, 30 Oct 2019 12:44:31 +0100
From:   David Sterba <dsterba@...e.cz>
To:     Navid Emamdoost <navid.emamdoost@...il.com>
Cc:     emamd001@....edu, smccaman@....edu, kjlu@....edu,
        David Sterba <dsterba@...e.com>,
        Jeff Layton <jlayton@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Deepa Dinamani <deepa.kernel@...il.com>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Al Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] fs: affs: fix a memory leak in affs_remount

On Wed, Oct 02, 2019 at 04:52:37PM -0500, Navid Emamdoost wrote:
> In affs_remount if data is provided it is duplicated into new_opts.
> The allocated memory for new_opts is only released if pare_options fail.
> But the variable is not used anywhere. So the new_opts should be
> removed.
> 
> Fixes: c8f33d0bec99 ("affs: kstrdup() memory handling")
> Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
> ---
> Changes in v2:
> 	-- fix typo
> Changes in v3:
> 	-- remove the call to kstrdup, as new_opts is not used anymore.

Added it to affs queue. There are still typos in the changelog and this
was pointed out, and v3 lacks the explanations I replied to v2.  I'll
fix it up.