Author: Bernd Schoeller <[email protected]>
Branch: py3.7
Changeset: r97940:9f57693bca37
Date: 2019-11-02 16:45 +0000
http://bitbucket.org/pypy/pypy/changeset/9f57693bca37/
Log: Checking for overflow in ctypes array creation (fixing
test.test_ctypes)
diff --git a/lib_pypy/_ctypes/array.py b/lib_pypy/_ctypes/array.py
--- a/lib_pypy/_ctypes/array.py
+++ b/lib_pypy/_ctypes/array.py
@@ -275,6 +275,8 @@
raise TypeError("Can't multiply a ctypes type by a non-integer")
if length < 0:
raise ValueError("Array length must be >= 0")
+ if length * base._sizeofinstances() > sys.maxsize:
+ raise OverflowError("array too large")
key = (base, length)
try:
return ARRAY_CACHE[key]
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