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v0.5.0
v0.5.0
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
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| .gitattributes | -rw-r--r-- | 1.8 KB |
| .gitignore | -rw-r--r-- | 1.8 KB |
| .travis.yml | -rw-r--r-- | 8.6 KB |
| CODE_OF_CONDUCT.md | -rw-r--r-- | 630 bytes |
| LICENSE | -rw-r--r-- | 12.5 KB |
| Makefile.pre.in | -rw-r--r-- | 68.8 KB |
| README.rst | -rw-r--r-- | 9.9 KB |
| aclocal.m4 | -rw-r--r-- | 13.1 KB |
| config.guess | -rwxr-xr-x | 43.1 KB |
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| netlify.toml | -rw-r--r-- | 82 bytes |
| pyconfig.h.in | -rw-r--r-- | 44.4 KB |
| setup.py | -rw-r--r-- | 108.5 KB |
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