linux-ext4 - Re: [PATCH 0/5] Failure to set acl may alter group permissions

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Message-ID: <20170712114719.GA14398@infradead.org>
Date:   Wed, 12 Jul 2017 04:47:19 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ernesto A. Fernández 
        <ernesto.mnd.fernandez@...il.com>
Cc:     Jan Kara <jack@...e.com>, Theodore Ts'o <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Dave Kleikamp <shaggy@...nel.org>, linux-ext4@...r.kernel.org,
        jfs-discussion@...ts.sourceforge.net,
        reiserfs-devel@...r.kernel.org, fstests@...r.kernel.org
Subject: Re: [PATCH 0/5] Failure to set acl may alter group permissions

On Wed, Jul 12, 2017 at 06:53:22AM -0300, Ernesto A. Fernández wrote:
> If your working directory is on a filesystem mounted with extended user
> attributes (and acl of course), this script will trigger the issue by
> filling the drive:
> 
> 
> touch test.file
> chmod go-rwx test.file
> yes xxxxxxxxxx > test.file
> i=1
> while setfattr -n user.$i test.file; do
>   ((++i))
> done
> setfacl -m m:r test.file

Can you please wire this up for xfstests?