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bpo-31532: Fix memory corruption due to allocator mix (#3679)

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Fix a memory corruption in getpath.c due to mixed memory allocators
between Py_GetPath() and Py_SetPath().

The fix use the Raw allocator to mimic the windows version.

This patch should be used from python3.6 to the current version

for more details, see the bug report and
  https://github.com/pyinstaller/pyinstaller/issues/2812
This commit is contained in:
nurelin 2017-09-21 08:08:20 +02:00 • committed by Benjamin Peterson
parent b091bec824
commit 3d1e2ab584
2 changed files with 3 additions and 1 deletions
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2
Misc/NEWS.d/next/C API/2017-09-20-21-59-52.bpo-31532.s9Cw9_.rst Normal file
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@ -0,0 +1,2 @@
Fix memory corruption due to allocator mix in getpath.c between Py_GetPath()
and Py_SetPath()

2
Modules/getpath.c
View file

@ -735,7 +735,7 @@ calculate_path(void)
bufsz += wcslen(zip_path) + 1;
bufsz += wcslen(exec_prefix) + 1;
buf = PyMem_New(wchar_t, bufsz);
buf = PyMem_RawMalloc(bufsz * sizeof(wchar_t));
if (buf == NULL) {
Py_FatalError(
"Not enough memory for dynamic PYTHONPATH");