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Jeff Epler
bd69a0ddef
Otherwise, a very deeply nested regular expression like
re.compile("(" * 65536)
can exhaust the host stack during the compile phase. This turns
that into a `RuntimeError: maximum recursion depth exceeded`
instead.
This crash was found via fuzzing.
Signed-off-by: Jeff Epler <jepler@unpythonic.net>
26 lines
449 B
Python
26 lines
449 B
Python
# Test overflow in re.compile output code.
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try:
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import re
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except ImportError:
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print("SKIP")
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raise SystemExit
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def test_re(r):
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try:
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re.compile(r)
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except:
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print("Error")
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try:
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r = "(" * 65536 + ")" * 65536
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except MemoryError:
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print("SKIP")
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raise SystemExit
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# This happens to trigger RecursionError on current versions of CPython
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# (tested with 3.13.5) as well, so no .exp file is needed.
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test_re(r)
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