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Bug 2020238

Summary: shadow-utils: useradd crashes with --prefix
Product: Red Hat Enterprise Linux 9 Reporter: Iker Pedrosa <ipedrosa>
Component: shadow-utilsAssignee: Iker Pedrosa <ipedrosa>
Status: CLOSED ERRATA QA Contact: Anuj Borah <aborah>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 9.0CC: extras-qa, fedora.dm0, ipedrosa, pbrezina, pvrabec, tm
Target Milestone: rcKeywords: Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: shadow-utils-4.9-3.el9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 2018697 Environment:
Last Closed: 2022-05-17 15:59:27 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2018697    
Bug Blocks:    

Description Iker Pedrosa 2021-11-04 12:12:59 UTC
+++ This bug was initially created as a clone of Bug #2018697 +++

Description of problem:
The useradd program fails to add users into a chroot.

Version-Release number of selected component (if applicable):
4.9

How reproducible:
Always

Steps to Reproduce:
1. rm -fr /tmp/newroot && mkdir -p /tmp/newroot/etc && cp -at /tmp/newroot/etc /etc/{passwd,group,sub[ug]id,gshadow,shadow,login.defs,default} 
2. useradd --prefix /tmp/newroot --groups=wheel --create-home --password= test_user 
free(): invalid pointer
Aborted (core dumped)

Actual results:
It aborts with "free(): invalid pointer".

Expected results:
It should add the user to /tmp/newroot/etc/passwd.

Additional info:
It is fixed upstream, so it could be backported: https://github.com/shadow-maint/shadow/issues/394

Apparently openSUSE hit this as well and backported the upstream commit: https://build.opensuse.org/package/view_file/openSUSE:Factory/shadow/shadow-fix-sigabrt.patch

Comment 7 errata-xmlrpc 2022-05-17 15:59:27 UTC
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 (new packages: shadow-utils), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:3997