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Description of problem:

net-snmp is leaking file descriptors when run on an SCTP-enabled system until it runs out and effectively blocks.

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

net-snmp-5.5-54.el6_7.1

Additional info:

Appears to need upstream patch

Commit: 65f2b7bcd4fe03906aa1a115ab60a89b8ae933d5 [65f2b7b]
Parents: 0e52e4f66d
Author: Jan Safranek <jsafranek.net>
Date: 19 January 2012 11:51:36 GMT

Close open files on error.

Reproducer:

1. Initiate a sctp connection, e.g. using sctp_darn:
server: sctp_darn -l -P 12345 -H 127.0.0.1
client: sctp_darn -h 127.0.0.1 -p 12345 -H 127.0.0.1 -P 12346 -s
(and send something from the client to the server, it's sort of nc-like tool)

Then, in a loop:
2. run: snmpwalk -v2c -c public localhost sctp
3. watch nr. of open file descriptors: ls -la  /proc/`pidof snmpd`/fd | wc -l

It should not grow.

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, 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://rhn.redhat.com/errata/RHBA-2016-0947.html