|
Problem IT10802
|
Status: Closed |
CDR CHECK REPLICATE CAN SEGV CALLING MEMMOVE FROM _IQUPDTARGS |
| product: |
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10 |
| Problem description: |
The cdr check replicate command can cause segv in cdr with the
following stack which was observed
running 12.10UC5W1 on linux x86_64:
Program received signal SIGSEGV, Segmentation fault.
0x006edb75 in memmove () from /lib/libc.so.6
(gdb) where
#0 in memmove () from /lib/libc.so.6
#1 in _iqupdtargs ()
#2 in __slct ()
#3 in _sqexecinto ()
#4 in sqli_exec_tcb ()
#5 in sqli_exec ()
#6 in execStmt ()
#7 in getVerboseRow ()
#8 in recheckRows ()
#9 in compareRepl ()
#10 in checkRepl ()
#11 in ?? ()
#12 in ?? ()
#13 in sqli_exec_tcb () |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ESQL/C Application overiding BOOL Column with CFIXCHARTYPE *
* while fetching data. *
****************************************************************
* PROBLEM DESCRIPTION: *
* Singleton select that has BOOL column as user but requested *
* to read as CFIXCHARTYPE causes access violation. *
* *
* For example : *
* exec sql create table t1(c1 char(10) primary key, *
* c2 boolean default 'F' not null, c3 lvarchar(10)); *
* *
* *
* char sel_sql[256] = *
* "select t.c1, t.c2, t.c3 from t1 t where c1=4"; *
* *
* *
* EXEC SQL prepare prep_stmt from :sel_sql; *
* EXEC SQL describe prep_stmt into pSqlda; *
* *
* for(i=0; i<pSqlda->sqld; i++) *
* { *
* struct sqlvar_struct *col = *
* &(pSqlda->sqlvar[i]); *
* if( (col->sqltype & SQLTYPE) == SQLBOOL) *
* { *
* col->sqltype = CFIXCHARTYPE; *
* col->sqllen = 1; *
* } *
* } *
* *
* EXEC SQL execute prep_stmt INTO DESCRIPTOR pSqlda; *
****************************************************************
* RECOMMENDATION: *
* The problem has been fixed with CSDK 4.10.xC6 (IDS *
* 12.10.xC6). *
* Please upgrade CSDK to this version or higher. *
**************************************************************** |
| Local Fix: |
|
| Solution |
|
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 20.08.2015
30.12.2015
30.12.2015 |
| Problem solved at the following versions (IBM BugInfos) |
12.10.xC6,
4.10.xC6
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 4.10.xC5
|
 |
| 4.10.xC6
|
|
