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Re: [PATCH] script: fix double free in lexer


From: Vladimir 'phcoder' Serbinenko
Subject: Re: [PATCH] script: fix double free in lexer
Date: Sat, 11 Feb 2017 21:59:14 +0000

Go ahead

On Sat, 11 Feb 2017, 21:53 Andrei Borzenkov <address@hidden> wrote:
yylex_destroy() already frees scanner.

Found by: Coverity scan.
CID: 176636

---
 grub-core/script/lexer.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/grub-core/script/lexer.c b/grub-core/script/lexer.c
index 89cf677..c6bd317 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;
--
tg: (5298187..) coverity/176636 (depends on: master)

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