Hash collision security issue

Python/pythonrun.c

 
 /* Python interpreter top-level routines, including init/exit */
 
 #include "Python.h"
 
 #include "Python-ast.h"
 #undef Yield /* undefine macro conflicting with winbase.h */
 #include "grammar.h"
 #include "node.h"
 #include "token.h"
@@ skipping 53 matching lines @@
 static void err_input(perrdetail *);
 static void err_free(perrdetail *);
 static void initsigs(void);
 static void call_py_exitfuncs(void);
 static void wait_for_thread_shutdown(void);
 static void call_ll_exitfuncs(void);
 extern int _PyUnicode_Init(void);
 extern void _PyUnicode_Fini(void);
 extern int _PyLong_Init(void);
 extern void PyLong_Fini(void);
+extern void _PyRandom_Init(void);
 extern int _PyFaulthandler_Init(void);
 extern void _PyFaulthandler_Fini(void);
 
 #ifdef WITH_THREAD
 extern void _PyGILState_Init(PyInterpreterState *, PyThreadState *);
 extern void _PyGILState_Fini(void);
 #endif /* WITH_THREAD */
 
 int Py_DebugFlag; /* Needed by parser.c */
 int Py_VerboseFlag; /* Needed by import.c */
@@ skipping 127 matching lines @@
 #endif
 
     if ((p = Py_GETENV("PYTHONDEBUG")) && *p != '\0')
         Py_DebugFlag = add_flag(Py_DebugFlag, p);
     if ((p = Py_GETENV("PYTHONVERBOSE")) && *p != '\0')
         Py_VerboseFlag = add_flag(Py_VerboseFlag, p);
     if ((p = Py_GETENV("PYTHONOPTIMIZE")) && *p != '\0')
         Py_OptimizeFlag = add_flag(Py_OptimizeFlag, p);
     if ((p = Py_GETENV("PYTHONDONTWRITEBYTECODE")) && *p != '\0')
         Py_DontWriteBytecodeFlag = add_flag(Py_DontWriteBytecodeFlag, p);
+
+    _PyRandom_Init();
 
     interp = PyInterpreterState_New();
     if (interp == NULL)
         Py_FatalError("Py_Initialize: can't make first interpreter");
 
     tstate = PyThreadState_New(interp);
     if (tstate == NULL)
         Py_FatalError("Py_Initialize: can't make first thread");
     (void) PyThreadState_Swap(tstate);
 
@@ skipping 2330 matching lines @@
 #undef PyRun_InteractiveLoop
 PyAPI_FUNC(int)
 PyRun_InteractiveLoop(FILE *f, const char *p)
 {
     return PyRun_InteractiveLoopFlags(f, p, NULL);
 }
 
 #ifdef __cplusplus
 }
 #endif