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Jason J. Herne 871e10fc95 Fix libvirtd free() segfault when migrating guest with deleted open vswitch port
libvirtd crashes on free()ing portData for an open vswitch port if that port
was deleted.  To reproduce:

ovs-vsctl del-port vnet0
virsh migrate --live kvm1 qemu+ssh://dstHost/system

Error message:
libvirtd: *** Error in `/usr/sbin/libvirtd': free(): invalid pointer: 0x000003ff90001e20 ***

The problem is that virCommandRun can return an empty string in the event that
the port being queried does not exist. When this happens then we are
unconditionally overwriting a newline character at position strlen()-1. When
strlen is 0, we overwrite memory that does not belong to the string.

The fix: Only overwrite the newline if the string is not empty.

Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
2016-01-27 10:01:58 +01:00
.gnulib@6cc32c63e8 maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
build-aux bracket-spacing: Add syntax-check for unnecessary curly brackets 2014-11-14 17:13:36 +01:00
daemon Introduce migration iteration event 2016-01-21 16:36:08 +01:00
docs docs: fix syntax-check long line error 2016-01-20 10:27:24 -05:00
examples Expand $(wildcard) correctly 2016-01-12 17:16:33 +01:00
gnulib maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
include Xen: add XENXL to virErrorDomain enum 2016-01-21 09:31:39 -07:00
m4 wireshark: Install into DESTDIR 2016-01-12 18:51:38 +01:00
po Release of libvirt-1.3.1 2016-01-17 10:29:57 +08:00
src Fix libvirtd free() segfault when migrating guest with deleted open vswitch port 2016-01-27 10:01:58 +01:00
tests device: cleanup input device code 2016-01-26 17:53:33 +01:00
tools virsh: fix cpu-stats command output format issue 2016-01-26 09:23:49 +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 virt-admin: Introduce first working skeleton 2015-11-30 09:44:28 +01:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: update .mailmap for recent contributions 2015-03-20 06:17:55 -06:00
AUTHORS.in AUTHORS: Add myself to the list of committers 2015-10-08 11:48:26 +02:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: Remove control characters from LGPL license file 2015-09-25 09:16:24 +02:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
HACKING maint: document use of zanata for translations 2015-06-10 15:26:44 -06:00
Makefile.am build: Kill tools/wireshark Makefiles 2016-01-12 11:30:08 -05:00
Makefile.nonreentrant maint: use LGPL correctly 2013-05-20 14:03:48 -06:00
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
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00
autobuild.sh Disable libvirtd by default when building on Win32 2014-04-29 11:30:32 +01:00
autogen.sh maint: improve usage of autogen's --no-git 2015-02-06 11:35:29 -07:00
bootstrap maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
bootstrap.conf bootstrap: Don't require python-config 2015-08-06 14:35:14 +02:00
cfg.mk cfg.mk: Drop period after filename for indent failures 2016-01-09 16:33:10 -05:00
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 Post-release version bump to 1.3.2 2016-01-18 13:22:14 +01:00
libvirt-admin.pc.in Add libvirt-admin library 2015-06-16 13:46:20 +02:00
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 Release of libvirt-1.3.1 2016-01-17 10:29:57 +08:00
mingw-libvirt.spec.in parallels: substitute parallels with vz spec file and Makefile 2015-06-17 15:07:55 +03:00
run.in Add PKG_CONFIG_PATH to run.in script. 2014-06-26 14:32:35 +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>