Staging
v0.8.1
v0.8.1
https://github.com/python/cpython
Revision 8de34cdb952a2e3b8d7a9a213845cad01a8cece3 authored by Pablo Galindo on 02 September 2020, 20:30:51 UTC, committed by GitHub on 02 September 2020, 20:30:51 UTC
[3.9] bpo-41690: Use a loop to collect args in the parser instead of recursion (GH-22053) (GH-22067)
This program can segfault the parser by stack overflow:
```
import ast
code = "f(" + ",".join(['a' for _ in range(100000)]) + ")"
print("Ready!")
ast.parse(code)
```
the reason is that the rule for arguments has a simple recursion when collecting args:
args[expr_ty]:
[...]
| a=named_expression b=[',' c=args { c }] {
[...] }.
(cherry picked from commit 4a97b1517a6b5ff22e2984b677a680b07ff0ce11)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> 1 parent a763ee3
Tip revision: 8de34cdb952a2e3b8d7a9a213845cad01a8cece3 authored by Pablo Galindo on 02 September 2020, 20:30:51 UTC
[3.9] bpo-41690: Use a loop to collect args in the parser instead of recursion (GH-22053) (GH-22067)
[3.9] bpo-41690: Use a loop to collect args in the parser instead of recursion (GH-22053) (GH-22067)
Tip revision: 8de34cd
| File | Mode | Size |
|---|---|---|
| c-api | ||
| data | ||
| distributing | ||
| distutils | ||
| extending | ||
| faq | ||
| howto | ||
| includes | ||
| install | ||
| installing | ||
| library | ||
| reference | ||
| tools | ||
| tutorial | ||
| using | ||
| whatsnew | ||
| Makefile | -rw-r--r-- | 8.5 KB |
| README.rst | -rw-r--r-- | 4.6 KB |
| about.rst | -rw-r--r-- | 1.5 KB |
| bugs.rst | -rw-r--r-- | 4.7 KB |
| conf.py | -rw-r--r-- | 7.1 KB |
| contents.rst | -rw-r--r-- | 538 bytes |
| copyright.rst | -rw-r--r-- | 451 bytes |
| glossary.rst | -rw-r--r-- | 52.3 KB |
| license.rst | -rw-r--r-- | 45.2 KB |
| make.bat | -rw-r--r-- | 5.5 KB |
| requirements.txt | -rw-r--r-- | 128 bytes |
| runtime.txt | -rw-r--r-- | 3 bytes |
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