Bug 706903 – getpwuid unreliable when using NIS, missing flag: -DUSE_BINDINGDIR=1

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Bug 706903 - getpwuid unreliable when using NIS, missing flag: -DUSE_BINDINGDIR=1

Summary:	getpwuid unreliable when using NIS, missing flag: -DUSE_BINDINGDIR=1

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	glibc (Show other bugs)
Sub Component:
Version:	6.0
Hardware:	Unspecified Unspecified

Priority	unspecified Severity unspecified
Target Milestone:	rc
Target Release:	---
Assigned To:	Andreas Schwab
QA Contact:	qe-baseos-tools
Docs Contact:

URL:
Whiteboard:
Keywords:	Regression

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2011-05-23 08:30 EDT by Andreas Schwab
Modified:	2016-11-24 10:41 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	glibc-2.12-1.29.el6
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:	703880
Environment:
Last Closed:	2011-12-06 12:47:32 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:1526	normal	SHIPPED_LIVE	Low: glibc security, bug fix, and enhancement update	2011-12-05 20:02:21 EST

Groups: None (edit)

Description Andreas Schwab 2011-05-23 08:30:41 EDT

+++ This bug was initially created as a clone of Bug #703880 +++

Description of problem:

On a machine using NIS for passwd in compat mode and with a big
netgroup (~ 790 users), the uid resolution is unreliable.

Version-Release number of selected component (if applicable):
glibc-2.13-1.x86_64

How reproducible: every time, with and without nscd running.

Steps to Reproduce:
1. in /etc/nsswitch.conf: passwd:     compat
2. in /etc/passwd: +@NETGROUP::::::
   where NETGROUP contains ~ 790 users.
3. "ls -l" in a directory containing a sub-directory per user owned by
   each of them.

Actual results:

All the uid's are not reliably translated to user names.

Expected results:

All the uid's translated to user names.

Additional info:

A fix that works (at least for me) is to recompile glibc with the
following flags for ypclnt.c in glibc-fedora.patch

+CFLAGS-ypclnt.c = -fno-strict-aliasing -DUSE_BINDINGDIR=1

instead of:

+CFLAGS-ypclnt.c = -fno-strict-aliasing

Comment 6 errata-xmlrpc 2011-12-06 12:47:32 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-2011-1526.html

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