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Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
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cd7702d456
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Michal Privoznik cd7702d456 xend: Don't crash in virDomainXMLDevID 
The function is called from all {Attach,Update,Detach}Device APIs to
create config strings that are later passed to the xend to perform the
desired action. The function is intended to handle all supported
devices. However, as of 5b05358aba we
are trying to get disk driver of the device without checking if the
device really is a disk. This leads to an segmentation fault:

  #0 0x00007ffff7571815 in virDomainDiskGetDriver () from /usr/lib/libvirt.so.0
  #1 0x00007fffeb9ad471 in ?? () from /usr/lib/libvirt/connection-driver/libvirt_driver_xen.so
  #2 0x00007fffeb9b1062 in xenDaemonAttachDeviceFlags () from /usr/lib/libvirt/connection-driver/libvirt_driver_xen.so
  #3 0x00007fffeb9a8a86 in ?? () from /usr/lib/libvirt/connection-driver/libvirt_driver_xen.so
  #4 0x00007ffff7609266 in virDomainAttachDevice () from /usr/lib/libvirt.so.0
  #5 0x0000555555593c9d in ?? ()
  #6 0x00007ffff76743c9 in virNetServerProgramDispatch () from /usr/lib/libvirt.so.0
  #7 0x00005555555a678d in ?? ()
  #8 0x00007ffff755460e in ?? () from /usr/lib/libvirt.so.0
  #9 0x00007ffff7553b06 in ?? () from /usr/lib/libvirt.so.0
  #10 0x00007ffff4998b50 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
  #11 0x00007ffff46e30ed in clone () from /lib/x86_64-linux-gnu/libc.so.6
  #12 0x0000000000000000 in ?? ()

Reported-by: Xiaolin Su <linxxnil@126.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-01-30 13:59:52 +01:00
.gnulib@c27f1a356f maint: update to latest gnulib 2015-01-05 16:38:50 -07:00
build-aux bracket-spacing: Add syntax-check for unnecessary curly brackets 2014-11-14 17:13:36 +01:00
daemon Fix shadowed variable warning 2015-01-27 13:43:23 +01:00
docs conf: Don't mangle vcpu placement randomly 2015-01-30 13:51:22 +01:00
examples Grant access to helpers 2015-01-23 11:12:44 +01:00
gnulib maint: fix date in local gnulib patch 2015-01-05 16:44:10 +00:00
include storage: add a flag to clone files on btrfs 2015-01-27 13:41:14 +01:00
m4 Conditionalize use of -Wno-suggest-attribute=format pragma 2015-01-16 17:12:27 +00:00
po Release of libvirt-1.2.12 2015-01-27 16:01:12 +08:00
src xend: Don't crash in virDomainXMLDevID 2015-01-30 13:59:52 +01:00
tests conf: Don't mangle vcpu placement randomly 2015-01-30 13:51:22 +01:00
tools virsh: man: Document behavior of some blkdeviotune's flags when querying 2015-01-29 08:33:51 +01:00
.ctags maint: Make ctags work out of the box 2013-07-18 08:47:21 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.gitignore Revert "src/xenconfig: Xen-xl parser" 2015-01-12 10:15:13 -07:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: update .mailmap 2014-12-21 00:21:34 +01:00
AUTHORS.in Update my email address in AUTHORS.in 2014-12-19 22:30:31 +01:00
autobuild.sh Disable libvirtd by default when building on Win32 2014-04-29 11:30:32 +01:00
autogen.sh maint: detect VPATH builds when checking for gnulib update 2014-06-04 16:06:55 -06:00
bootstrap maint: update to latest gnulib 2015-01-05 16:05:12 +00:00
bootstrap.conf Revert "bootstrap.conf: add check for flex" 2015-01-12 10:14:30 -07:00
cfg.mk Fix virCgroupGetPercpuStats with non-continuous present CPUs 2015-01-22 17:01:11 +01:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
config-post.h build: fix build of virt-login-shell on systems with older gnutls 2013-10-22 09:41:50 -06:00
configure.ac qemu: Allow UEFI paths to be specified at compile time 2015-01-29 15:20:42 +01:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
HACKING docs: Fix missing curly braces 2014-12-10 11:21:31 +01:00
libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt-qemu.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in libvirt.spec: remove vbox storage and network .so files 2015-01-28 19:05:25 +01:00
Makefile.am examples: Introduce domtop 2014-07-18 16:39:54 +02:00
Makefile.nonreentrant maint: use LGPL correctly 2013-05-20 14:03:48 -06:00
mingw-libvirt.spec.in Move virConnect related APIs out of libvirt.h.in 2014-10-24 17:23:51 +01:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking docs: update README-hacking 2014-05-06 16:20:24 -06:00
run.in Add PKG_CONFIG_PATH to run.in script. 2014-06-26 14:32:35 +01:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README 

         LibVirt : simple API for virtualization

  Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.

Daniel Veillard <veillard@redhat.com>