Bug 746002

Summary:	User added to /etc/group doesn't belong to this group
Product:	[Fedora] Fedora	Reporter:	Artur Szymczak <artur.szymczak>
Component:	glibc	Assignee:	Andreas Schwab <schwab>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	jakub, kdudka, maxamillion, ovasik, schwab, twaugh
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-10-13 16:01:29 EDT	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:

Description Artur Szymczak 2011-10-13 11:33:52 EDT

Description of problem:

I added my user to group 'wheel'. But it seems that it doesn't belong to this group.


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


How reproducible:


Steps to Reproduce:
1. usermod -a -G wheel artur
2. id artur
3. grep artur /etc/group
  
Actual results:
# usermod -a -G wheel artur
# id artur
uid=1000(artur) gid=1000(artur) groups=1000(artur)
# grep artur /etc/group
wheel:x:10:artur
artur:x:1000:


Expected results:
# usermod -a -G wheel artur
# id artur
uid=1000(artur) gid=1000(artur) groups=1000(artur),10(wheel)
# grep artur /etc/group
wheel:x:10:artur
artur:x:1000:


Additional info:

Comment 1 Ondrej Vasik 2011-10-13 16:01:29 EDT

Thanks for report. Command id/groups just uses getgroup(2) from glibc. Btw. your steps to reproduce are incomplete - please read info documentation for id/group - "Primary and supplementary groups for a process are normally inherited
from its parent and are usually unchanged since login.  This means that
if you change the group database after logging in, `groups' will not
reflect your changes within your existing login session." - so before the logout/login, that's perfectly ok and documented behaviour.

Anyway, it seems that glibc is now a bit buggy, there are more such reports... closing as duplicate of glibc bug.

*** This bug has been marked as a duplicate of bug 745675 ***