New submission from Rolland Dudemaine <[EMAIL PROTECTED]>:
In many files, the following code is present (with slight variations,
but the important part is there) :
static PyObject *
objargs_mktuple(va_list va)
{
int i, n = 0;
va_list countva;
PyObject *result, *tmp;
#ifdef VA_LIST_IS_ARRAY
memcpy(countva, va, sizeof(va_list));
#else
#ifdef __va_copy
__va_copy(countva, va);
#else
countva = va;
#endif
#endif
...
memcpy() is accessing va_list before it is initialized.
Before the first access to a va_list type variable, and after the last
access to that variable, calls to va_start() and va_end() must be made
to initialize and free the variable.
Such behaviour should be corrected in the following files :
- Objects/abstract.c, line 1901
- Objects/stringobject.c, line 162
- getargs.c, line 66
- getargs.c, line 1188
- modsupport.c, line 479
----------
components: Build
messages: 64234
nosy: rolland
severity: normal
status: open
title: uninitialized access to va_list
type: compile error
versions: Python 2.5, Python 2.6, Python 3.0
__________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue2443>
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