linux-kernel - Re: [PATCH] gfs2: get rid of potential double free

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Date:   Tue, 27 Nov 2018 08:40:31 +0800
From:   PanBian <bianpan2016@....com>
To:     Andreas Gruenbacher <agruenba@...hat.com>
Cc:     Bob Peterson <rpeterso@...hat.com>,
        Christoph Hellwig <hch@...radead.org>,
        cluster-devel <cluster-devel@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gfs2: get rid of potential double free

On Tue, Nov 27, 2018 at 12:19:48AM +0100, Andreas Gruenbacher wrote:
> Pan,
> 
> On Mon, 26 Nov 2018 at 09:44, Pan Bian <bianpan2016@....com> wrote:
> 
> > __gfs2_set_acl will not increase the reference count of acl if it fails.
> > In this case, posix_acl_release are called twice, one after
> > __gfs2_set_acl and one in the error handling block. This patch does not
> > release acl when __gfs2_set_acl fails.
> >
> 
> thanks for the bug report and patch; I think this should be fixed more
> clearly as in the patch I've posted earlier today.

I have seen the patch. It is really much clearer. Thank you!

Pan


> 
> Andreas