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Description of problem:
libvirt auth.conf make virsh cmd Segmentation fault (core dumped)
Version-Release number of selected component (if applicable):
libvirt-0.10.2-0rc1.el6.x86_64
How reproducible:
100%
Steps to Reproduce:
1. add auth_unix_rw="sasl" in the /etc/libvirt/libvirtd.conf
add sasl user
# saslpasswd2 -a libvirt test
(input your passwd)
# sasldblistusers2 -f /etc/libvirt/passwd.db
test.nay.redhat.com: userPassword
2. add auth.conf file in the /etc/libvirtd/
# cat /etc/libvirt/auth.conf
[credentials-sasl]
authname=test
password=redhat123
[auth-libvirt-localhost]
credentials=sasl
3. restart libvirtd
service libvirtd restart
Stopping libvirtd daemon: [ OK ]
Starting libvirtd daemon:
4. run virsh cmd
# virsh list
Segmentation fault (core dumped)
[root@intel-q9400-4-7 ~]#
virsh capabilities
Segmentation fault (core dumped)
5. qemu+unix and qemu works well with auth.conf without sasl username and passwd
# virsh -c qemu+unix:///system list
Id Name State
----------------------------------------------------
2 qq running
4 ga running
# virsh -c qemu:///system list
Id Name State
----------------------------------------------------
2 qq running
4 ga running
when core dumped libvirtd.log error message :
2012-09-21 05:14:24.712+0000: 32009: error : virNetSocketReadWire:1184 : End of file while reading data: Input/output error
Actual results:
core dumped
Expected results:
no core dumped
Additional info:
virsh cmd works well after remove the auth.conf
# mv /etc/libvirt/auth.conf /etc/libvirt/auth.conf.bak
[root@intel-q9400-4-7 ~]# virsh list
Please enter your authentication name: test
Please enter your password:
Id Name State
----------------------------------------------------
2 qq running
4 ga running
Merged upstream, will be pulled in via the next rebase
commit ab42772a46e17d14204359a17234b2d9cee0ddb6
Author: Daniel P. Berrange <berrange>
Date: Wed Sep 12 16:40:08 2012 +0100
Fix crash accessing a NULL URI when looking up auth credentials
When auto-probing hypervisor drivers, the conn->uri field will
initially be NULL. Care must be taken not to access members
when doing auth lookups in the config file
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.
http://rhn.redhat.com/errata/RHSA-2013-0276.html