Bug 215572 - getaliasbyname segfaults when reading "name: :include:/path" alias
getaliasbyname segfaults when reading "name: :include:/path" alias
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: glibc (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Jakub Jelinek
Brian Brock
Depends On:
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Reported: 2006-11-14 12:43 EST by Rimas
Modified: 2007-11-16 20:14 EST (History)
0 users

See Also:
Fixed In Version: RHBA-2007-0210
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-05-01 19:11:43 EDT
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Regression: ---
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Rimas 2006-11-14 12:43:26 EST
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; .NET CLR 2.0.50727)

Description of problem:
If /etc/aliases file has aliases of form:

name:  :include:/path

then getaliasbyname("name") glibc function causes segmentation fault when reading such alias.

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

How reproducible:

Steps to Reproduce:
1. Add ":include:" alias to /etc/aliases file, for example:
mylist:  :include:/etc/mail/mylist
2. Create file /etc/mail/mylist with some entries, for example:
3. Write, compile and run such C program:

#include <aliases.h>
#include <stdio.h>

int main() {
  struct aliasent *al = getaliasbyname("mylist");
  if (al) puts("Alias OK!");
  return 0;

Actual Results:
Segmentation fault

Expected Results:
Alias OK!

Additional info:
Same result if I use getent:

# getent aliases mylist
Segmentation fault
Comment 1 Jakub Jelinek 2006-11-14 13:41:51 EST
Reproduced even in Fedora development.
Comment 3 RHEL Product and Program Management 2006-11-15 02:23:34 EST
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
Comment 9 Red Hat Bugzilla 2007-05-01 19:11:43 EDT
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


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