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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 |
|---|---|---|
| abstract.h | -rw-r--r-- | 13.9 KB |
| bytearrayobject.h | -rw-r--r-- | 769 bytes |
| bytesobject.h | -rw-r--r-- | 4.0 KB |
| ceval.h | -rw-r--r-- | 1.5 KB |
| code.h | -rw-r--r-- | 6.8 KB |
| dictobject.h | -rw-r--r-- | 3.7 KB |
| fileobject.h | -rw-r--r-- | 951 bytes |
| fileutils.h | -rw-r--r-- | 3.9 KB |
| frameobject.h | -rw-r--r-- | 3.0 KB |
| import.h | -rw-r--r-- | 1.4 KB |
| initconfig.h | -rw-r--r-- | 16.6 KB |
| interpreteridobject.h | -rw-r--r-- | 456 bytes |
| listobject.h | -rw-r--r-- | 1.3 KB |
| methodobject.h | -rw-r--r-- | 1.4 KB |
| object.h | -rw-r--r-- | 18.9 KB |
| objimpl.h | -rw-r--r-- | 4.4 KB |
| pyerrors.h | -rw-r--r-- | 5.0 KB |
| pylifecycle.h | -rw-r--r-- | 2.0 KB |
| pymem.h | -rw-r--r-- | 3.4 KB |
| pystate.h | -rw-r--r-- | 9.9 KB |
| sysmodule.h | -rw-r--r-- | 575 bytes |
| traceback.h | -rw-r--r-- | 473 bytes |
| tupleobject.h | -rw-r--r-- | 1.0 KB |
| unicodeobject.h | -rw-r--r-- | 44.5 KB |
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