RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1198720 - Libvirtd crashes when a storage file backed by gluster protocol lacking path
Summary: Libvirtd crashes when a storage file backed by gluster protocol lacking path
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libvirt
Version: 7.1
Hardware: x86_64
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Peter Krempa
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1196528
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-03-04 17:04 UTC by Jan Kurik
Modified: 2015-03-26 17:54 UTC (History)
8 users (show)

Fixed In Version: libvirt-1.2.8-16.el7_1.2
Doc Type: Bug Fix
Doc Text:
Cause: If a backing chain element would contain an invalid gluster URI (lacking the path component) libvirt would try to access it. Consequence: Libvirt would try to access the missing part of the URI and crash. Fix: Error is reported in case an invalid gluster source URI is passed to libvirt.
Clone Of: 1196528
Environment:
Last Closed: 2015-03-26 17:54:29 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0742 0 normal SHIPPED_LIVE libvirt bug fix update 2015-03-26 21:53:57 UTC

Description Jan Kurik 2015-03-04 17:04:53 UTC 
This bug has been copied from bug #1196528 and has been proposed
to be backported to 7.1 z-stream (EUS).
Comment 6 Yang Yang 2015-03-19 07:38:48 UTC 
Verified with libvirt-1.2.8-16.el7_1.2.x86_64

Steps as following:
1.create gluster.img and rewrite it using a gluster path lacking of volume as backing file.

# qemu-img create -f qcow2 /var/lib/libvirt/images/gluster.img 100M
Formatting '/var/lib/libvirt/images/gluster.img', fmt=qcow2 size=104857600 encryption=off cluster_size=65536 lazy_refcounts=off 

# qemu-img rebase -u -f qcow2 -F raw -b gluster://10.66.4.164 /var/lib/libvirt/images/gluster.img 

2.# qemu-img info /var/lib/libvirt/images/gluster.img
image: /var/lib/libvirt/images/gluster.img
file format: qcow2
virtual size: 100M (104857600 bytes)
disk size: 196K
cluster_size: 65536
backing file: gluster://10.66.4.164
backing file format: raw
Format specific information:
    compat: 1.1
    lazy refcounts: false

3. # ps -ef|grep libvirtd
root      1076     1  0 15:12 ?        00:00:00 /usr/sbin/libvirtd

# virsh pool-refresh default
error: Failed to refresh pool default
error: unsupported configuration: missing volume name and path for gluster volume

# ps -ef|grep libvirtd
root      1076     1  0 15:12 ?        00:00:00 /usr/sbin/libvirtd

Libvirtd does NOT crash.

4. remove gluster.img and start default pool
# rm /var/lib/libvirt/images/gluster.img -f
# virsh pool-start default

5. create gluster.img and rewrite it using an valid path as backing file

# qemu-img create -f qcow2 /var/lib/libvirt/images/gluster.img 100M
Formatting '/var/lib/libvirt/images/gluster.img', fmt=qcow2 size=104857600 encryption=off cluster_size=65536 lazy_refcounts=off 

# qemu-img rebase -u -f qcow2 -F raw -b gluster://10.66.4.164/vol/vol /var/lib/libvirt/images/gluster.img 

6. # virsh pool-refresh default
Pool default refreshed

7. # virsh vol-list default | grep gluster
 gluster.img          /var/lib/libvirt/images/gluster.img

As libvirtd does NOT crash again, mark it as verified
Comment 8 errata-xmlrpc 2015-03-26 17:54:29 UTC 
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/RHBA-2015-0742.html
Note You need to log in before you can comment on or make changes to this bug.