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From: Max Reitz <mreitz@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>, qemu-devel@nongnu.org
Cc: benoit.canet@irqsave.net, maxa@catit.be, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH v4 00/21] block: Handle failure for potentially large allocations
Date: Thu, 07 Aug 2014 20:34:27 +0200	[thread overview]
Message-ID: <53E3C6B3.5030300@redhat.com> (raw)
In-Reply-To: <1403624224-2084-1-git-send-email-kwolf@redhat.com>

On 24.06.2014 17:36, Kevin Wolf wrote:
> A not too small part of the recent CVEs were DoS scenarios by letting
> qemu abort with too large memory allocations. We generally "fixed" these
> cases by setting some limits on values read from image files that
> influence the size of allocations.
>
> Because we still need to allow reading large images, this works only to
> a certain degree and we still can get fairly large allocations, which
> are not unthinkable to fail on some machines.
>
> This series converts potentially large allocations to g_try_malloc() and
> friends and handles failure gracefully e.g. by returning -ENOMEM. This
> may cause hot-plug of a new disk or individual requests to fail, but the
> VM as a whole can keep running.

Ping – is there anything missing here? This series does contain one 
patch from me, so I'm naturally interested in seeing this series getting 
merged. ;-)

Max

  parent reply	other threads:[~2014-08-07 18:34 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-24 15:36 [Qemu-devel] [PATCH v4 00/21] block: Handle failure for potentially large allocations Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 01/21] block: Introduce qemu_try_blockalign() Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 02/21] block: Handle failure for potentially large allocations Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 03/21] bochs: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 04/21] cloop: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 05/21] curl: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 06/21] dmg: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 07/21] iscsi: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 08/21] nfs: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 09/21] parallels: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 10/21] qcow1: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 11/21] qcow2: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 12/21] qed: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 13/21] raw-posix: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 14/21] raw-win32: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 15/21] rbd: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 16/21] vdi: " Kevin Wolf
2014-06-24 15:36 ` [Qemu-devel] [PATCH v4 17/21] vhdx: " Kevin Wolf
2014-06-24 15:37 ` [Qemu-devel] [PATCH v4 18/21] vmdk: " Kevin Wolf
2014-06-24 15:37 ` [Qemu-devel] [PATCH v4 19/21] vpc: " Kevin Wolf
2014-06-24 15:37 ` [Qemu-devel] [PATCH v4 20/21] mirror: " Kevin Wolf
2014-06-24 15:37 ` [Qemu-devel] [PATCH v4 21/21] qcow2: Return useful error code in refcount_init() Kevin Wolf
2014-08-07 18:34 ` Max Reitz [this message]
2014-08-08  8:23   ` [Qemu-devel] [PATCH v4 00/21] block: Handle failure for potentially large allocations Kevin Wolf
  -- strict thread matches above, loose matches on Subject: below --
2014-06-05 13:36 Kevin Wolf
2014-06-11 10:33 ` Stefan Hajnoczi
2014-06-11 14:36 ` Stefan Hajnoczi

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