Bug 845893 – Double close of FD when failing to connect to a remote hypervisor

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Bug 845893 - Double close of FD when failing to connect to a remote hypervisor

Summary:	Double close of FD when failing to connect to a remote hypervisor

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	libvirt (Show other bugs)
Sub Component:
Version:	6.4
Hardware:	Unspecified Unspecified

Priority	medium Severity medium
Target Milestone:	rc
Target Release:	---
Assigned To:	Ján Tomko
QA Contact:	Virtualization Bugs
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2012-08-05 23:00 EDT by yanbing du
Modified:	2013-02-21 02:21 EST (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	libvirt-0.10.0-0rc1.el6
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2013-02-21 02:21:04 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2013:0276	normal	SHIPPED_LIVE	Moderate: libvirt security, bug fix, and enhancement update	2013-02-20 16:18:26 EST

Groups: None (edit)

Description yanbing du 2012-08-05 23:00:22 EDT

Description of problem:
When 
can't access to remote libvirtd which start by a non-root user

Version-Release number of selected component (if applicable):


How reproducible:
libvirt-0.10.0-0rc0.el6.x86_64

Steps to Reproduce:
1. On one host A, stop libvirtd service and start it by a non-root user
#service libvirtd stop
#su tester
$libvirtd -d

2. On another host B, try to connect that libvirtd
#virsh -c qemu+ssh://tester@${hostA_ip}/session
or
#virsh -c qemu+ssh://tester@${hostA_ip}/system
or 
#virsh -c qemu+ssh://tester@${hostA_ip}/aaaaaa

Actual results:
Step2:
error: End of file while reading data: 2012-08-06 02:41:17.381+0000: 7888: info : libvirt version: 0.10.0, package: 0rc0.el6 (Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>, 2012-08-02-03:44:27, x86-007.build.bos.redhat.com)
2012-08-06 02:41:17.381+0000: 7888: warning : virFileClose:65 : Tried to close invalid fd 7: Input/output error
error: failed to connect to the hypervisor

Expected results:
No such error message.

Additional info:
BTW, if the host B is rhel6.3(libvirt-0.9.10-21.el6_3.3.x86_64), then the errro message is:
error: End of file while reading data: : Input/output error
error: failed to connect to the hypervisor

Comment 1 Ján Tomko 2012-08-21 05:02:31 EDT

Upstream patch proposed:
https://www.redhat.com/archives/libvir-list/2012-August/msg01422.html

Comment 2 Ján Tomko 2012-08-22 04:37:25 EDT

Fixed by commit 8211c677a36609c8d861f23ef21ec2c2e5645ece
    command: avoid double close in virExecWithHook

Comment 4 Huang Wenlong 2012-08-23 03:05:12 EDT

Verify this bug with : 
libvirt-0.10.0-0rc1.el6.x86_64
qemu-kvm-rhev-0.12.1.2-2.303.el6.x86_64

step as comment 0:

# virsh -c qemu+ssh://whuang@10.66.82.251/session
whuang@10.66.82.251's password: 
error: End of file while reading data: : Input/output error
error: failed to connect to the hypervisor


there is not message like :  "warning : virFileClose:65 : Tried to close invalid fd 7: Input/output error"

Comment 5 errata-xmlrpc 2013-02-21 02:21:04 EST

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

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