8000 [3.11] gh-95355: Check tokens[0] after allocating memory (GH-95356) by miss-islington · Pull Request #95367 · python/cpython · GitHub
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[3.11] gh-95355: Check tokens[0] after allocating memory (GH-95356) #95367

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Merged
merged 1 commit into from
Jul 28, 2022
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[3.11] gh-95355: Check tokens[0] after allocating memory (GH-95356) #95367

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gh-95355: Check tokens[0] after allocating memory (GH-95356) 
GH-95355

Automerge-Triggered-By: GH:pablogsal
(cherry picked from commit b946f52)

Co-authored-by: Honglin Zhu <zhuhonglin.zhl@alibaba-inc.com>
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@imzhuhl @miss-islington
imzhuhl authored and miss-islington committed Jul 28, 2022
commit c2fb6cac8476a6ba88226c4195a457d08b5048b2
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Core and Builtins/2022-07-28-08-33-31.gh-issue-95355.yN4XVk.rst
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@@ -0,0 +1 @@
``_PyPegen_Parser_New`` now properly detects token memory allocation errors. Patch by Honglin Zhu.
2 changes: 1 addition & 1 deletion Parser/pegen.c
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Expand Up @@ -744,7 +744,7 @@ _PyPegen_Parser_New(struct tok_state *tok, int start_rule, int flags,
return (Parser *) PyErr_NoMemory();
}
p->tokens[0] = PyMem_Calloc(1, sizeof(Token));
if (!p->tokens) {
if (!p->tokens[0]) {
PyMem_Free(p->tokens);
PyMem_Free(p);
return (Parser *) PyErr_NoMemory();
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