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Description of problem:

Same issue as in 
https://github.com/net-snmp/net-snmp/issues/26

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

net-snmp-5.8-18.el8_3.1.x86_64

How reproducible:

All the time

Steps to Reproduce:
1. "proc nonexistent" after "proc snmpd" in snmpd.conf
2. `snmpwalk -c test -v1 localhost UCD-SNMP-MIB::prErrMessage`

See github issue #26 for more details

Actual results:
Returns no data.

Expected results:
"UCD-SNMP-MIB::prErrMessage.1 = STRING: No nonexistent process running"

Additional info:
Fix appears to have been here:
https://github.com/net-snmp/net-snmp/commit/d0787a2c86a80e31756965c436fac67b7d1c0f9b

@efedin may I ask for QA evaluation and ack?

Created attachment 1793901 [details]
Patch for error message issue on net-snmp 5.8

Attached is a patch that resolves this issue (based on patch from upstream).

Verified issue occurred on a number of CentOS 8 hosts with net-snmp-5.8-20. Applied patch to net-snmp-5.8-20 source rpm, installed and retested on hosts. Disk and process error messages now successfully return an empty string.

Edit: I see this has already been addressed, I missed that status while viewing the bug logged off.

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 (net-snmp bug fix and enhancement update), 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/RHEA-2021:4439