[Python-checkins] bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the interpreter (GH-5960) (GH-6042)
Brett Cannon
webhook-mailer at python.org
Fri Mar 9 15:35:24 EST 2018
https://github.com/python/cpython/commit/b316c44b0105d11a80ff971636143735f3655bbf
commit: b316c44b0105d11a80ff971636143735f3655bbf
branch: 3.6
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: Brett Cannon <brettcannon at users.noreply.github.com>
date: 2018-03-09T12:35:14-08:00
summary:
bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the interpreter (GH-5960) (GH-6042)
(cherry picked from commit 7a7f100eb352d08938ee0f5ba59c18f56dc4a7b5)
Co-authored-by: Brett Cannon <brettcannon at users.noreply.github.com>
files:
M Doc/library/ast.rst
diff --git a/Doc/library/ast.rst b/Doc/library/ast.rst
index 8d4ae2cc616f..6376f5fe4410 100644
--- a/Doc/library/ast.rst
+++ b/Doc/library/ast.rst
@@ -113,6 +113,11 @@ and classes for traversing abstract syntax trees:
Parse the source into an AST node. Equivalent to ``compile(source,
filename, mode, ast.PyCF_ONLY_AST)``.
+ .. warning::
+ It is possible to crash the Python interpreter with a
+ sufficiently large/complex string due to stack depth limitations
+ in Python's AST compiler.
+
.. function:: literal_eval(node_or_string)
@@ -126,6 +131,11 @@ and classes for traversing abstract syntax trees:
capable of evaluating arbitrarily complex expressions, for example involving
operators or indexing.
+ .. warning::
+ It is possible to crash the Python interpreter with a
+ sufficiently large/complex string due to stack depth limitations
+ in Python's AST compiler.
+
.. versionchanged:: 3.2
Now allows bytes and set literals.
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