linux-kernel - Re: [PATCH v3 part1 0/4] Fix SG_IO ambiguity between READ SUBCHANNEL and UNMAP (and other similar cases)

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Message-ID: <53FDAE65.3080208@redhat.com>
Date:	Wed, 27 Aug 2014 12:09:41 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Luis Henriques <luis.henriques@...onical.com>
CC:	linux-kernel@...r.kernel.org, tj@...nel.org
Subject: Re: [PATCH v3 part1 0/4] Fix SG_IO ambiguity between READ SUBCHANNEL
 and UNMAP (and other similar cases)

Il 27/08/2014 11:34, Luis Henriques ha scritto:
> > The SG_IO ioctl's command whitelist is designed for MMC devices (roughly,
> > "play/burn CDs without requiring root") but some opcodes overlap across SCSI
> > device classes and have different meanings for different classes.
> > 
> > To fix this, use different bitmaps for the various device classes.
> > This is CVE-2012-4542.
>
> Sorry for bringing this old issue again, but I was wondering what
> happen to this fix.

Nothing; everybody lost interest in it.

Paolo
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