Bug 1198720
| Summary: | Libvirtd crashes when a storage file backed by gluster protocol lacking path | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jan Kurik <jkurik> |
| Component: | libvirt | Assignee: | Peter Krempa <pkrempa> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 7.1 | CC: | dyuan, jsuchane, mzhan, pkrempa, pm-eus, rbalakri, xuzhang, yanyang |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| 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.
|
Story Points: | --- |
| Clone Of: | 1196528 | Environment: | |
| Last Closed: | 2015-03-26 17:54:29 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1196528 | ||
| Bug Blocks: | |||
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Description
Jan Kurik
2015-03-04 17:04:53 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
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 |