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From: Paolo Bonzini <pbonzini@redhat.com>
To: Luis Henriques <luis.henriques@canonical.com>
Cc: linux-kernel@vger.kernel.org, tj@kernel.org
Subject: Re: [PATCH v3 part1 0/4] Fix SG_IO ambiguity between READ SUBCHANNEL and UNMAP (and other similar cases)
Date: Wed, 27 Aug 2014 12:09:41 +0200	[thread overview]
Message-ID: <53FDAE65.3080208@redhat.com> (raw)
In-Reply-To: <20140827093437.GA10937@hercules>

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

  reply	other threads:[~2014-08-27 10:09 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-23 13:58 [PATCH v3 part1 0/4] Fix SG_IO ambiguity between READ SUBCHANNEL and UNMAP (and other similar cases) Paolo Bonzini
2013-05-23 13:58 ` [PATCH v3 part1 1/4] sg_io: pass request_queue to blk_verify_command Paolo Bonzini
2013-05-24  7:36   ` James Bottomley
2013-05-24  7:43     ` Paolo Bonzini
2013-05-24  7:50       ` James Bottomley
2013-05-24  7:53         ` Paolo Bonzini
2013-05-24  8:03           ` James Bottomley
2013-05-24  8:32             ` Paolo Bonzini
2013-05-24 21:41               ` Paolo Bonzini
2013-05-25  4:14               ` James Bottomley
2013-05-25  6:18                 ` Paolo Bonzini
2013-05-23 13:58 ` [PATCH v3 part1 2/4] sg_io: prepare to introduce per-class command filters Paolo Bonzini
2013-05-23 13:58 ` [PATCH v3 part1 3/4] sg_io: use different default filters for each device class Paolo Bonzini
2013-05-23 13:58 ` [PATCH v3 part1 4/4] sg_io: resolve conflicts between commands assigned to multiple classes (CVE-2012-4542) Paolo Bonzini
2014-08-27  9:34 ` [PATCH v3 part1 0/4] Fix SG_IO ambiguity between READ SUBCHANNEL and UNMAP (and other similar cases) Luis Henriques
2014-08-27 10:09   ` Paolo Bonzini [this message]
2014-08-27 12:08     ` Luis Henriques
2014-08-27 17:47       ` Christoph Hellwig

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