RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Description of problem:
This code in audit_encode_nv_string() will crash in audit_encode_value() by referencing a NULL pointer if malloc() hits OOM.

                char *tmp = malloc(2*vlen + 1);
                audit_encode_value(tmp, value, vlen);
                asprintf(&str, "%s=%s", name, tmp);
                free(tmp);

It needs to check the malloc return value, and return NULL to the caller immediately upon malloc failure, so that the caller can take appropriate action.

Version-Release number of selected component (if applicable):
audit-2.0.4-1.el6

How reproducible:
On OOM only

Steps to Reproduce:
1. N/a
2.
3.
  
Actual results:


Expected results:


Additional info:

Fix checked in upstream:
https://fedorahosted.org/audit/changeset/420

Should be in audit-2.0.6

audit-2.0.6-1.el6 was built to fix this problem.

audit-2.1-1.el6 was built to resolve this issue.

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 therefore 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.

http://rhn.redhat.com/errata/RHBA-2011-0653.html