[Python-checkins] bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the interpreter (GH-5960) (GH-6041)
Brett Cannon
webhook-mailer at python.org
Fri Mar 9 15:35:45 EST 2018
https://github.com/python/cpython/commit/f2fffd41b42d88fe36b483852ae33d5a415b7082
commit: f2fffd41b42d88fe36b483852ae33d5a415b7082
branch: 3.7
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: Brett Cannon <brettcannon at users.noreply.github.com>
date: 2018-03-09T12:35:42-08:00
summary:
bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the interpreter (GH-5960) (GH-6041)
(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 b7f610ba8b2a..a75a6afbf2d7 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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