commit 7795ae8f05a5b1134a576a372f64699176cac5fb
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Jun 16 10:36:59 2020 -0700
committer GitHub <noreply@github.com> Tue Jun 16 18:36:59 2020 +0100
tree 3098d80d2e6fbe78c9c840a512dfc63da357ce90
parent 3cf809475a93228a3cb310b4d10d38f3b9d44c1f

bpo-40958: Avoid buffer overflow in the parser when indexing the current line (GH-20875) (GH-20919)

(cherry picked from commit 51c5896b6205911d29ac07f167ec7f3cf1cb600d)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>

Parser/pegen/pegen.h

diff --git a/Parser/pegen/pegen.h b/Parser/pegen/pegen.h
index 2585392..c8eae75 100644
--- a/Parser/pegen/pegen.h
+++ b/Parser/pegen/pegen.h
@@ -34,7 +34,7 @@
 typedef struct {
     int type;
     PyObject *bytes;
-    int lineno, col_offset, end_lineno, end_col_offset;
+    Py_ssize_t lineno, col_offset, end_lineno, end_col_offset;
     Memo *memo;
 } Token;
 
@@ -132,7 +132,7 @@
 const char *_PyPegen_get_expr_name(expr_ty);
 void *_PyPegen_raise_error(Parser *p, PyObject *errtype, const char *errmsg, ...);
 void *_PyPegen_raise_error_known_location(Parser *p, PyObject *errtype,
-                                          int lineno, int col_offset,
+                                          Py_ssize_t lineno, Py_ssize_t col_offset,
                                           const char *errmsg, va_list va);
 void *_PyPegen_dummy_name(Parser *p, ...);