Fixes are available
May 2012 PTF for XL C/C++ for AIX, V10.1
January 2013 PTF for XL C/C++ for AIX, V10.1
XL C/C++ for AIX Fix Pack 18 (July 2013 PTF) for 10.1
XL C/C++ for AIX Fix Pack 19 (October 2013 PTF) for 10.1
XL C/C++ for AIX Fix Pack 21 (October 2015 PTF) for 10.1
May 2011 PTF for XL C/C++ for AIX, V10.1
October 2011 PTF for XL C/C++ for AIX, V10.1
February 2012 PTF for XL C/C++ for AIX, V10.1
September 2012 PTF for XL C/C++ for AIX, V10.1
XL C/C++ for AIX Fix Pack 20 (October 2014 PTF) for 10.1
APAR status
Closed as program error.
Error description
Using object constructors as the second and third operands in a ?: conditional is corrupting the exception unwinding stack. As an example, a conditional of the form: object1 = ( true ? TestObject(10) : TestObject(11) ); is pushing an extra object reference on to the unwinding stack. When an exception is thrown, a destructor is accidentlly called twice, possibly resulting in a runtime error or crash.
Local fix
Change the ?: conditional into an 'if' statement.
Problem summary
PROBLEM DESCRIPTION: Unnecessary exception handling table cloning applied, thus creating corrupt exception handling table. USERS AFFECTED: Temporaries constructed within the context of conditional expressions may expose the problem when throwing an exception after the conditional but before another exception handling state change.
Problem conclusion
The exception handling table cloning has been restricted to only the cases where it is needed.
Temporary fix
Comments
APAR Information
APAR number
IZ92370
Reported component name
XL C++ AIX
Reported component ID
5724U8100
Reported release
A10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-01-17
Closed date
2011-03-31
Last modified date
2011-04-26
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
XL C++ AIX
Fixed component ID
5724U8100
Applicable component levels
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSJT9L","label":"XL C\/C++"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"A.1","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
Document Information
Modified date:
16 October 2021