linux-kernel - Re: [PATCH] fanotify: Dont allow a mask of 0 if setting or removing a mark

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Message-ID: <1290542076.1443.33.camel@localhost.localdomain>
Date:	Tue, 23 Nov 2010 14:54:36 -0500
From:	Eric Paris <eparis@...hat.com>
To:	Lino Sanfilippo <LinoSanfilippo@....de>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] fanotify: Dont allow a mask of 0 if setting or
 removing a mark

On Mon, 2010-11-22 at 18:46 +0100, Lino Sanfilippo wrote:
> In mark_remove_from_mask() we destroy marks that have their event mask cleared.
> Thus we should not allow the creation of those marks in the first place.
> With this patch we check if the mask given from user is 0 in case of FAN_MARK_ADD.
> If so we return an error. Same for FAN_MARK_REMOVE since this does not have any
> effect.
> 
> Signed-off-by: Lino Sanfilippo <LinoSanfilippo@....de>

applied.  Thanks.

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