bpo-36356: Fix memory leak in _PyPreConfig_Read() (GH-12425)

_PyPreConfig_Read() now free 'old_old' at exit.

bpo-36356: Fix memory leak in _PyPreConfig_Read() (GH-12425)
_PyPreConfig_Read() now free 'old_old' at exit.
e130a07e · btharper · Victor Stinner · 5f1e8b4d · e130a07e · e130a07e
Commit e130a07e authored Mar 19, 2019 by btharper Committed by Victor Stinner Mar 19, 2019
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Misc/NEWS.d/next/Build/2019-03-18-23-49-15.bpo-36356.WNrwYI.rst ...EWS.d/next/Build/2019-03-18-23-49-15.bpo-36356.WNrwYI.rst +1 -0

Python/preconfig.c Python/preconfig.c +1 -0

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--- a/Misc/NEWS.d/next/Build/2019-03-18-23-49-15.bpo-36356.WNrwYI.rst
+++ b/Misc/NEWS.d/next/Build/2019-03-18-23-49-15.bpo-36356.WNrwYI.rst
+Fix leaks that led to build failure when configured with address sanitizer.
--- a/Python/preconfig.c
+++ b/Python/preconfig.c
@@ -514,6 +514,7 @@ _PyPreConfig_Read(_PyPreConfig *config)
    err = preconfig_read(config, NULL);

    setlocale(LC_CTYPE, old_loc);
+    PyMem_RawFree(old_loc);

    return err;
 }