[sqlite] sqlite3DbMallocRaw is crashing

[Ashok Pitambar]

Hi All,

            I am facing an issue where in sqlite3DbMallocRaw function
crashes while trying to access pBuf->pNext. Did anybody came across this
issue? any help is appreciated.

stack trace:

sqlite3DbMallocRaw(
    db = 0x24EFBF34,
  ?)
  pBuf = 0x0B94256B -> (
    pNext = 0x0 -> NULL
                       )

function:

SQLITE_PRIVATE void *sqlite3DbMallocRaw(sqlite3 *db, int n){
  void *p;
  assert( db==0 || sqlite3_mutex_held(db->mutex) );
  assert( db==0 || db->pnBytesFreed==0 );
#ifndef SQLITE_OMIT_LOOKASIDE
  if( db ){
    LookasideSlot *pBuf;
    if( db->mallocFailed ){
      return 0;
    }
    if( db->lookaside.bEnabled ){
      if( n>db->lookaside.sz ){
        db->lookaside.anStat[1]++;
      }else if( (pBuf = db->lookaside.pFree)==0 ){
        db->lookaside.anStat[2]++;
      }else{
        db->lookaside.pFree = pBuf->pNext;
        db->lookaside.nOut++;
        db->lookaside.anStat[0]++;
        if( db->lookaside.nOut>db->lookaside.mxOut ){
          db->lookaside.mxOut = db->lookaside.nOut;
        }
        return (void*)pBuf;
      }
    }
  }
#else
  if( db && db->mallocFailed ){
    return 0;
  }
#endif
  p = sqlite3Malloc(n);
  if( !p && db ){
    db->mallocFailed = 1;
  }
  sqlite3MemdebugSetType(p, MEMTYPE_DB |
         ((db && db->lookaside.bEnabled) ? MEMTYPE_LOOKASIDE :
MEMTYPE_HEAP));
  return p;
}
_______________________________________________
sqlite-users mailing list
sqlite-users@sqlite.org
http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users