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Issue #23446: Use PyMem_New instead of PyMem_Malloc to avoid possible integer

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overflows.  Added few missed PyErr_NoMemory().
This commit is contained in:
Serhiy Storchaka 2015-02-16 13:28:22 +02:00
parent e1efc07a30
commit 1a1ff29659
15 changed files with 50 additions and 52 deletions
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4
Python/peephole.c
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@ -290,7 +290,7 @@ fold_unaryops_on_constants(unsigned char *codestr, PyObject *consts, PyObject *v
static unsigned int *
markblocks(unsigned char *code, Py_ssize_t len)
{
unsigned int *blocks = (unsigned int *)PyMem_Malloc(len*sizeof(int));
unsigned int *blocks = PyMem_New(unsigned int, len);
int i,j, opcode, blockcnt = 0;
if (blocks == NULL) {
@ -398,7 +398,7 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
goto exitUnchanged;
/* Mapping to new jump targets after NOPs are removed */
addrmap = (int *)PyMem_Malloc(codelen * sizeof(int));
addrmap = PyMem_New(int, codelen);
if (addrmap == NULL) {
PyErr_NoMemory();
goto exitError;