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DB2 - Problem description

Problem IC79428 Status: Closed

DB2 CRASH WHEN CALLING OS PLUG-IN GETGRENT / GETGRENT_R TO GET GROUP NAMES

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
db2 crash when calling OS plug-in getgrent / getgrent_r to get 
group names 
 
under unusual circumstances, the getgrent/getgrent_r function 
could return a NULL pointer for the group name which will cause 
DB2 to crash. 
 
From trap file: 
 
timestamp: 2011-10-07-17.55.06.122329 
 
Signal #11 (SIGSEGV): si_addr is 0x0000000000000000, si_code is 
 
0x00000001 (SEGV_MAPERR:Address not mapped to object.) 
 
 
 
<StackTrace> 
 
-----FUNC-ADDR---- ------FUNCTION OFFSET------ 
 
ossDumpStackTraceEx 
_ZN11OSSTrapFile6dumpExEmiP7siginfoPvm 
sqlo_trce 0x03fb 
sqloEDUCodeTrapHandler 
sqloacs2 0x0005 
_Z12secGetGroupsPcPvPKciPS_PiS2_ii 
_Z19osplugin_get_groupsPcPvPKciPS_PiS2_ii 
_Z19get_groups_externalPKciS0_iS0_iiS0_iPviiS0_iPS1_PiPPcS3_ 
_Z16getgroupsforuserPciS_iS_iiS_iPviiS_iP14sqlo_mem_descrP17grou 
p_functi 
_Z21sqlexGetGroupsForUserPciS_iS_iiS_iPviiS_iP14sqlo_mem_descrP9 
sqlf_kcf 
_Z20sqlexSlsSystemAccrdbP14db2UCinterface 
_Z20sqlexEngAuthenticateP14db2UCinterface 
_ZN14sqeApplication13AppLocalStartEP14db2UCinterface 
_Z11sqlelostWrpP14db2UCinterface 
_Z14sqleUCengnInitP14db2UCinterfacet 
_Z18sqljsConnectAttachP13sqljsDrdaAsCbP14db2UCinterface 
_Z16sqljs_ddm_accsecP14db2UCinterfaceP13sqljDDMObject 
_Z17sqljsParseConnectP13sqljsDrdaAsCbP13sqljDDMObjectP14db2UCint 
erface + 
_Z10sqljsParseP13sqljsDrdaAsCbP14db2UCinterfaceP8sqeAgentb 
_Z17sqljsDrdaAsDriverP18SQLCC_INITSTRUCT_T 
...... 
 
 
It failed in sqloacs2 checking for group names from OS plug-in 
getgrent / getgrent_r.
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 version 9.7fp6                                * 
****************************************************************
Local Fix:
N/A
available fix packs:
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Solution
First fixed in DB2 Version 9.7fp6
Workaround
not known / see Local fix
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC84283 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
24.10.2011
18.06.2012
18.06.2012
Problem solved at the following versions (IBM BugInfos)
9.7.FP6
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.6 FixList