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DB2 - Problem description

Problem IC83769 Status: Closed

DB2 CONNECT GATEWAY INSTANCE MAY CRASH DUE TO MEMORY CORRUPTION AT
SQLJRPROCESSSETI()

product:
DB2 CONNECT / DB2CONNCT / 950 - DB2
Problem description:
DB2 Connect gateway may crash when a JCC application from DB2 
Client sends incorrect CLIENT ACCTNG value with length more than 
256 characters. 
 
<StackTrace> 
-----FUNC-ADDR---- ------FUNCTION + OFFSET------ 
0x0000020004D1FE8E ossDumpStackTrace + 0x00d6 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2osse.so.1) 
0x0000020004D1B67E _ZN11OSSTrapFile4dumpEmiP7siginfoPv + 0x00c2 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2osse.so.1) 
0x0000020001F70486 sqlo_trce + 0x066e 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020002006364 sqloEDUCodeTrapHandler + 0x0134 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x000002001F409DF0 address: 0x2001f409df0 
0x0000020001FD227E sqloCrashOnCriticalMemoryValidationFailure + 
0x002e 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020001FE91FE 
_ZN13SQLO_MEM_POOL32diagnoseMemoryCorruptionAndCrashEmPKc + 
0x01f6 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020001FE74D6 
_ZN13SQLO_MEM_POOL10MemTreePutEP8SMemNodemP17SqloChunkSubgroup + 
0x021e 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020001FD4FF6 sqlofmblkEx + 0x07aa 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x000002000118031A 
_Z16sqljrProcessSetiP14db2UCinterface13SQLJRSETITYPE + 0x023a 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x000002000117FF50 _Z19sqljrPreProcessSetiP14db2UCinterface + 
0x0330 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x00000200011853B2 
_Z18sqljrPreProcessSQLP13sqljrDrdaArCbP14db2UCinterface13sqljrRq 
stTypeb + 0x03aa 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020001154174 _Z20sqljrDrdaArExcSqlSetP14db2UCinterface + 
0x0358 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x00000200011C0EA4 
_Z19sqljs_ddm_excsqlsetP14db2UCinterfaceP13sqljDDMObject + 
0x1540 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020001196F76 
_Z21sqljsParseRdbAccessedP13sqljsDrdaAsCbP13sqljDDMObjectP14db2U 
Cinterface + 0x0242 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x000002000119633A 
_Z10sqljsParseP13sqljsDrdaAsCbP14db2UCinterface + 0x0246 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x000002000118E172 address: 0x000002000118E172 ; dladdress: 
0x000002000000D000 ; offset in lib: 0x0000000001181172 ; 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020001192AE0 _Z17sqljsDrdaAsDriverP18SQLCC_INITSTRUCT_T + 
0x0380 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020000F2EDB6 _ZN8sqeAgent6RunEDUEv + 0x014e 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020002EB67AC _ZN9sqzEDUObj9EDUDriverEv + 0x0198 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020002EB67C6 _Z10sqlzRunEDUPcj + 0x0016 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000020002006E42 sqloEDUEntry + 0x034a 
        (/dbc/home/dbcsib01/sqllib/lib64/libdb2e.so.1) 
0x0000004D2FE14974 address: 0x0000004D2FE14974 ; dladdress: 
0x0000004D2FE0D000 ; offset in lib: 0x0000000000007974 ; 
        (/lib64/libpthread.so.0) 
0x0000004D2FCD3D96 address: 0x0000004D2FCD3D96 ; dladdress: 
0x0000004D2FBE2000 ; offset in lib: 0x00000000000F1D96 ; 
        (/lib64/libc.so.6) 
</StackTrace> 
 
 
DB2diag.log has: 
2012-05-19-15.09.16.873630-240 E24739564A1118     LEVEL: Warning 
PID     : 3961                 TID  : 2199342016848PROC : 
db2sysc 
INSTANCE: db2inst1             NODE : 000         DB   : DSNDB2 
APPHDL  : 0-52823 
AUTHID  : db2inst1 
EDUID   : 27                   EDUNAME: db2agentg (DSNDB2 ) 
FUNCTION: DB2 UDB, DRDA Application Requester, 
sqljrParseSetSqlEnvReply, probe:900 
MESSAGE : ADM2506W  While an application was attempting to issue 
a deferred SET 
          statement, the server returned a non-zero sqlcode. The 
sqlcode is 
          "-725".  Check your application, and validate the 
deferred SET 
          statement. 
DATA #1 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes 
 sqlcaid : SQLCA     sqlcabc: 136   sqlcode: -725   sqlerrml: 21 
 sqlerrmc: CLIENT ACCTNG DSNDB2 
 sqlerrp : DSNLXENV 
 sqlerrd : (1) 0xFFFFFF92      (2) 0x00000000      (3) 
0x00000000 
           (4) 0xFFFFFFFF      (5) 0x00000000      (6) 
0x00000000 
 sqlwarn : (1)      (2)      (3)      (4)        (5)       (6) 
 
           (7)      (8)      (9)      (10)        (11) 
 sqlstate: 42721
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All users on DB2 V9.5 on LUW                                 * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to V9.5 FP10                                         * 
****************************************************************
Local Fix:
Modify the application to set the CLIENT ACCTNG value to less 
than 256 characters.
Solution
First fixed in V9.5 FP10.
Workaround
not known / see Local fix
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC83867 IC83897 IC87879 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
25.05.2012
05.12.2012
05.12.2012
Problem solved at the following versions (IBM BugInfos)
9.5.FP10
Problem solved according to the fixlist(s) of the following version(s)
9.5.0.10 FixList
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