Bug 736346 – make initgroups (setgroups) thread aware

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Bug 736346 - make initgroups (setgroups) thread aware

Summary:	make initgroups (setgroups) thread aware

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	glibc (Show other bugs)
Sub Component:
Version:	6.1
Hardware:	Unspecified Unspecified

Priority	medium Severity unspecified
Target Milestone:	rc
Target Release:	6.2
Assigned To:	Andreas Schwab
QA Contact:	qe-baseos-tools
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	722583 743047
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Reported:	2011-09-07 09:15 EDT by Petr Matousek
Modified:	2017-02-07 08:13 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	glibc-2.12-1.40.el6
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2011-12-06 12:48:07 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 Petr Matousek 2011-09-07 09:15:15 EDT

Description of problem:

When calling set*id after creating threads recent glibc does cross thread
signalling so that *id are set in all threads. When using raw syscalls or not
glibc, *id is set for the calling thread only.

initgroups (setgroups) in rhel glibc is not working that way. we are
missing upstream commit 70181fddf1467996bea393d13294ffe76b8a0853.

This blocks RHEL6 fix for CVE-2011-2527 (initgroups is called after multiple thread creation).

Comment 1 Petr Matousek 2011-09-07 09:18:25 EDT

Upstream bug/fix:

http://sourceware.org/bugzilla/show_bug.cgi?id=10563
http://repo.or.cz/w/glibc.git/commitdiff/70181fddf1467996bea393d13294ffe76b8a0853

Comment 5 errata-xmlrpc 2011-12-06 12:48:07 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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