Bug 530498

Summary:	app-emulation/qemu - `qemu-img convert' causes disk image corruption on raw write
Product:	Gentoo Linux	Reporter:	Tony Breeds <tony>
Component:	Current packages	Assignee:	Doug Goldstein (RETIRED) <cardoe>
Status:	RESOLVED FIXED
Severity:	normal	CC:	qemu+disabled
Priority:	Normal	Keywords:	PATCH
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://launchpad.net/bugs/1368815
Whiteboard:
Package list:		Runtime testing required:	---

Description Tony Breeds 2014-11-25 03:17:07 UTC

When 'qemu-img convert' is called to read/write a 'raw' image and the source is not flushed to disk it will corrupt the output image.

The was noticed in the context of openstack but isn't limited to that.

More details are available from:
https://bugs.launchpad.net/qemu/+bug/1368815

Please add the following 2 patches:
  http://git.qemu.org/?p=qemu.git;a=commit;h=38c4d0aea3e1264c86e282d99560330adf2b6e25
  http://git.qemu.org/?p=qemu.git;a=commit;h=7c15903789953ead14a417882657d52dc0c19a24
or update the qemu source to at least 2.2.0-rc0

Comment 1 Matthias Maier gentoo-dev

2014-12-14 22:45:55 UTC

Thank you for reporting this.

This is now fixed in versions 2.1.2-r2, 2.2.0. Version 2.1.2-r2 will get fast stabilized due to bugs #531666, #529030, #528922. Therefore, I close

*qemu-2.1.2-r2 (14 Dec 2014)

  14 Dec 2014; Matthias Maier <tamiko@gentoo.org> +qemu-2.1.2-r2.ebuild:
  backport fixes for bugs #530498, #531666 (CVE-2014-8106), #529030
  (CVE-2014-7840), #528922 (528922)