php5 assert failure: *** Error in `php5': free(): invalid pointer: 0x00007fe35816daf8 ***

[Marcos K]

after
pear upgrade

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: php5-cli 5.5.9+dfsg-1ubuntu4.6
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
AssertionMessage: *** Error in `php5': free(): invalid pointer: 0x00007fe35816daf8 ***
Date: Tue Feb 24 16:39:02 2015
ExecutablePath: /usr/bin/php5
InstallationDate: Installed on 2014-02-17 (372 days ago)
InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
ProcCmdline: php5 -c /etc/php5/apache2/php.ini -d error_reporting='~E_ALL' -r print\ ini_get("session.gc_maxlifetime");
Signal: 6
SourcePackage: php5
StacktraceTop:
 __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7fe37cb866c8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
 malloc_printerr (ptr=<optimized out>, str=0x7fe37cb827b9 "free(): invalid pointer", action=1) at malloc.c:4996
 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
 php_module_shutdown ()
 main ()
Title: php5 assert failure: *** Error in `php5': free(): invalid pointer: 0x00007fe35816daf8 ***
UpgradeStatus: Upgraded to trusty on 2014-05-23 (276 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7fe37cb866c8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
 malloc_printerr (ptr=<optimized out>, str=0x7fe37cb827b9 "free(): invalid pointer", action=1) at malloc.c:4996
 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
 php_module_shutdown () at /build/buildd/php5-5.5.9+dfsg/main/main.c:2384
 main (argc=7, argv=0x1898360) at /build/buildd/php5-5.5.9+dfsg/sapi/cli/php_cli.c:1393