From: Victor Stinner <victor.stinner@gmail.com>
Date: Sun, 7 Jul 2013 01:06:16 +0000 (+0200)
Subject: Issue #3329: Fix _PyObject_ArenaVirtualFree()
X-Git-Tag: v3.4.0a1~314^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=725e668ac8c966fb007d5bd862bff3b5d44a889c;p=python

Issue #3329: Fix _PyObject_ArenaVirtualFree()

According to VirtualFree() documentation, the size must be zero if the "free
type" is MEM_RELEASE.
---

diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c
index d08515d776..97a137db37 100644
--- a/Objects/obmalloc.c
+++ b/Objects/obmalloc.c
@@ -68,7 +68,7 @@ _PyObject_ArenaVirtualAlloc(void *ctx, size_t size)
 static void
 _PyObject_ArenaVirtualFree(void *ctx, void *ptr, size_t size)
 {
-    VirtualFree(ptr, size, MEM_RELEASE);
+    VirtualFree(ptr, 0, MEM_RELEASE);
 }
 
 #elif defined(ARENAS_USE_MMAP)