Red Hat Bugzilla – Bug 1143955
libvirtd crashed after running "virsh metadata --remove" command
Last modified: 2015-03-05 02:44:50 EST
Created attachment 938829 [details] libvird coredump log file. description of problem: libvirtd crashed after running "virsh metadata --remove" command. version: libvirt-1.2.8-2.el7.x86_64 qemu-kvm-1.5.3-60.el7.x86_64 How reproducible: 100% step to reproduce: 1. There is no metadata in guest xml. # virsh list --all Id Name State ---------------------------------------------------- - virt-tests-vm1 shut off # virsh dumpxml virt-tests-vm1 | grep metadata # ps aux | grep libvirtd root 11804 0.2 0.2 472144 21924 ? Ssl 17:44 0:00 /usr/sbin/libvirtd root 11860 0.0 0.0 112640 1024 pts/0 S+ 17:44 0:00 grep --color=auto libvirtd 2. run "virsh metadata" command, libvird crashed. # virsh metadata virt-tests-vm1 "http://herp.derp/" --remove error: End of file while reading data: Input/output error error: Failed to reconnect to the hypervisor # ps aux | grep libvirtdroot 11863 3.0 0.2 472144 17832 ? Ssl 17:44 0:00 /usr/sbin/libvirtd root 11919 0.0 0.0 112640 1024 pts/0 S+ 17:44 0:00 grep --color=auto libvirtd 3. Attached libvirtd coredump log file. Actual results: As described. Expect result: libvirtd shouldn't crash.
Fixed upstream: commit 288c47406cffa7a6eb9e9c29764850b0cdeb5508 Author: Erik Skultety <eskultet@redhat.com> Date: Thu Sep 18 14:25:05 2014 +0200 Fix libvirtd crash when removing metadata When trying to remove nonexistent metadata from XML, libvirt daemon crashes due to dereferencing NULL pointer. Resolves https://bugzilla.redhat.com/show_bug.cgi?id=1143955 v1.2.8-197-g288c474
I can reproduct this issue with build: libvirt-1.2.8-2.el7.x86_64 verify with build:libvirt-1.2.8-4.el7.x86_64 step: # ps -ef | grep libvirtd root 15093 1 1 13:52 ? 00:00:00 /usr/sbin/libvirtd root 15119 14076 0 13:53 pts/0 00:00:00 grep --color=auto libvirtd # virsh metadata rhel7 "http://herp.derp" --remove Metadata removed # ps -ef | grep libvirtd root 15093 1 1 13:52 ? 00:00:00 /usr/sbin/libvirtd libvirtd not crash movet to verified.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2015-0323.html