1
0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-12-25 01:34:11 +03:00
Libvirt native C API and daemons
Go to file
Erik Skultety 92e30a4dac mdev: Fix daemon crash on domain shutdown after reconnect
The problem resides in virHostdevUpdateActiveMediatedDevices which gets
called during qemuProcessReconnect. The issue here is that
virMediatedDeviceListAdd takes a pointer to the item to be added to the
list to which VIR_APPEND_ELEMENT is used, which also clears the pointer.
However, in this case only the local copy of the pointer got cleared,
leaving the original pointing to valid memory. To sum it up, during
cleanup phase, the original pointer is freed and the daemon crashes
basically any time it would access it.

Backtrace:
0x00007ffff3ccdeba in __strcmp_sse2_unaligned
0x00007ffff72a444a in virMediatedDeviceListFindIndex
0x00007ffff7241446 in virHostdevReAttachMediatedDevices
0x00007fffc60215d9 in qemuHostdevReAttachMediatedDevices
0x00007fffc60216dc in qemuHostdevReAttachDomainDevices
0x00007fffc6046e6f in qemuProcessStop
0x00007fffc6091596 in processMonitorEOFEvent
0x00007fffc6091793 in qemuProcessEventHandler
0x00007ffff7294bf5 in virThreadPoolWorker
0x00007ffff7294184 in virThreadHelper
0x00007ffff3fdc3c4 in start_thread () from /lib64/libpthread.so.0
0x00007ffff3d269cf in clone () from /lib64/libc.so.6

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1446455

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
2017-05-04 08:05:03 +02:00
.gnulib@94386a1366 maint: update to latest gnulib 2017-01-10 12:54:54 -06:00
build-aux annotate all mocked functions with noinline 2017-04-19 10:51:51 +01:00
daemon remote: Fix possible use-after-free when sending event message 2017-04-25 07:26:36 -04:00
docs news: Add more v3.3.0 entries 2017-05-03 17:13:48 +02:00
examples lib: Fix c99 style comments 2017-04-27 14:13:19 +02:00
gnulib build: drop hack for old mingw ssize_t 2016-07-12 08:57:13 -06:00
include/libvirt Add VIR_DOMAIN_JOB_OPERATION typed parameter 2017-04-27 15:06:40 +02:00
m4 locking: Add support for sanlock_strerror 2017-04-27 11:44:11 +02:00
po Refresh translations from zanata 2017-04-19 16:58:12 +01:00
src mdev: Fix daemon crash on domain shutdown after reconnect 2017-05-04 08:05:03 +02:00
tests fdstreamtest: Print more info on read failure 2017-04-28 14:17:10 +02:00
tools virsh-domain-monitor: add human readable output for 'domblkinfo'. 2017-05-02 09:36:31 +02:00
.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 Add ability to generate man page describing key code names & values 2017-04-25 21:20:43 +01:00
.gitmodules util: switch over to use keycodemapdb GIT submodule 2017-04-25 21:14:18 +01:00
.mailmap maint: update .mailmap for recent contributions 2015-03-20 06:17:55 -06:00
.travis.yml Add travis build configuration 2017-04-19 10:51:51 +01:00
AUTHORS.in Change maintainers list 2016-02-12 13:10:05 +03:00
autogen.sh autogen.sh: Improve and generalize 2017-04-25 09:52:37 +02:00
bootstrap maint: update to latest gnulib 2017-01-10 12:54:54 -06:00
bootstrap.conf hvsupport: use a regex instead of XML::XPath 2016-07-19 18:42:44 +02:00
cfg.mk xenconfig: add conversions for xen-xl 2017-04-27 15:05:44 -06:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
config-post.h m4/virt-devmapper: use LIBVIRT_CHECK_(PKG|LIB) 2016-12-21 15:39:39 +01:00
configure.ac util: Add virNetDevSetCoalesce function 2017-04-21 13:29:39 +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
HACKING Document preferred naming conventions 2017-03-10 11:28:56 +00:00
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 Add ability to generate man page describing key code names & values 2017-04-25 21:20:43 +01:00
Makefile.am Drop autobuild.sh 2017-04-13 19:03:46 +02:00
Makefile.nonreentrant cfg.mk: use a single regex for all non-reentrant functions 2016-06-15 15:00:56 +02:00
mingw-libvirt.spec.in Add ability to generate man page describing key code names & values 2017-04-25 21:20:43 +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

         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>