From: Andrei Borzenkov <arvidjaar@gmail.com>
Date: Sun, 12 Feb 2017 06:23:34 +0000 (+0300)
Subject: script: fix double free in lexer
X-Git-Tag: 2.02-rc2~10
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=2fb8cd26a90be74643bcb4bc39da01f84fecb1a9;p=thirdparty%2Fgrub.git

script: fix double free in lexer

yylex_destroy() already frees scanner.

Found by: Coverity scan.
CID: 176636
---

diff --git a/grub-core/script/lexer.c b/grub-core/script/lexer.c
index 89cf67706..c6bd3172f 100644
--- a/grub-core/script/lexer.c
+++ b/grub-core/script/lexer.c
@@ -251,7 +251,6 @@ grub_script_lexer_init (struct grub_parser_param *parser, char *script,
     {
       parser->lexerstate = 0;
       yylex_destroy (lexerstate->yyscanner);
-      grub_free (lexerstate->yyscanner);
       grub_free (lexerstate->text);
       grub_free (lexerstate);
       return 0;