memcached fails when more than one backend server is configured.

[Clint Armstrong]

Please see upstream php bug report: https://bugs.php.net/bug.php?id=73497

And the associated memcache bug report, which includes a patch: https://bugs.php.net/bug.php?id=73539

If more than one backend servers are configured, memcache tries to allocate 2^64 bytes of memory and fails.

This issue manifest itself after the release of php 7.0.13.

Description: Ubuntu 16.04.1 LTS
Release: 16.04

php-memcache:
  Installed: 3.0.9~20151130.fdbd46b-2

php7.0-fpm:
  Installed: 7.0.13-0ubuntu0.16.04.1

php7.0-common:
  Installed: 7.0.13-0ubuntu0.16.04.1

From php error log:
[12-Jan-2017 08:54:10 America/New_York] PHP Fatal error: Out of memory (allocated 2097152) (tried to allocate 18446744073709551612 bytes) in /var/www/index.php on line 18

[Clint Armstrong (clint-f)]

This patch fixes the issue.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "00_session_parse_fix.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]