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Kaydet (Commit) a4d78362 authored tarafından Brad Larsen's avatar Brad Larsen Kaydeden (comit) Guido van Rossum
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bpo-36495: Fix two out-of-bounds array reads (GH-12641) 

Research and fix by @bradlarsen.
üst 10654c19
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Python/ast.c
Dosyayı görüntüle @ a4d78362
...@@ -1400,7 +1400,7 @@ handle_keywordonly_args(struct compiling *c, const node *n, int start, ...@@ -1400,7 +1400,7 @@ handle_keywordonly_args(struct compiling *c, const node *n, int start,
goto error; goto error;
asdl_seq_SET(kwonlyargs, j++, arg); asdl_seq_SET(kwonlyargs, j++, arg);
i += 1; /* the name */ i += 1; /* the name */
if (TYPE(CHILD(n, i)) == COMMA) if (i < NCH(n) && TYPE(CHILD(n, i)) == COMMA)
i += 1; /* the comma, if present */ i += 1; /* the comma, if present */
break; break;
case TYPE_COMMENT: case TYPE_COMMENT:
...@@ -1599,7 +1599,7 @@ ast_for_arguments(struct compiling *c, const node *n) ...@@ -1599,7 +1599,7 @@ ast_for_arguments(struct compiling *c, const node *n)
if (!kwarg) if (!kwarg)
return NULL; return NULL;
i += 2; /* the double star and the name */ i += 2; /* the double star and the name */
if (TYPE(CHILD(n, i)) == COMMA) if (i < NCH(n) && TYPE(CHILD(n, i)) == COMMA)
i += 1; /* the comma, if present */ i += 1; /* the comma, if present */
break; break;
case TYPE_COMMENT: case TYPE_COMMENT:
......
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