From b19205b0572e7e175f85a0b997f3b24c4c4d81ea Mon Sep 17 00:00:00 2001 From: sobolevn Date: Mon, 21 Apr 2025 20:48:48 +0300 Subject: [PATCH] gh-132769: Refactor possible read-out-of-bounds in `lexer.c` (GH-132770) (cherry picked from commit ea8ec95cfadbf58a11ef8e41341254d982a1a479) Co-authored-by: sobolevn --- Parser/lexer/lexer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Parser/lexer/lexer.c b/Parser/lexer/lexer.c index e4b02aee51d3cf..f7e23596044109 100644 --- a/Parser/lexer/lexer.c +++ b/Parser/lexer/lexer.c @@ -140,7 +140,7 @@ set_fstring_expr(struct tok_state* tok, struct token *token, char c) { for (i = 0, j = 0; i < input_length; i++) { if (tok_mode->last_expr_buffer[i] == '#') { // Skip characters until newline or end of string - while (tok_mode->last_expr_buffer[i] != '\0' && i < input_length) { + while (i < input_length && tok_mode->last_expr_buffer[i] != '\0') { if (tok_mode->last_expr_buffer[i] == '\n') { result[j++] = tok_mode->last_expr_buffer[i]; break;