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bpo-33720: Reduces maximum marshal recursion depth on release builds. (GH-7401)

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Steve Dower 2018-06-04 13:25:00 -07:00 • committed by GitHub
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commit 2a4a62ba4a
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3 changed files with 12 additions and 2 deletions
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8
Python/marshal.c
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@ -25,8 +25,14 @@ module marshal
* and risks coring the interpreter. When the object stack gets this deep,
* raise an exception instead of continuing.
* On Windows debug builds, reduce this value.
*
* BUG: https://bugs.python.org/issue33720
* On Windows PGO builds, the r_object function overallocates its stack and
* can cause a stack overflow. We reduce the maximum depth for all Windows
* releases to protect against this.
* #if defined(MS_WINDOWS) && defined(_DEBUG)
*/
#if defined(MS_WINDOWS) && defined(_DEBUG)
#if defined(MS_WINDOWS)
#define MAX_MARSHAL_STACK_DEPTH 1000
#else
#define MAX_MARSHAL_STACK_DEPTH 2000