grub2/SOURCES/0427-script-execute-Fix-NULL-dereference-in-grub_script_e.patch

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2021-03-02 20:36:22 +00:00
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Fri, 3 Apr 2020 23:05:13 +1100
Subject: [PATCH] script/execute: Fix NULL dereference in
grub_script_execute_cmdline()
Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/script/execute.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/grub-core/script/execute.c b/grub-core/script/execute.c
index a1aadb9ee05..2e47c046741 100644
--- a/grub-core/script/execute.c
+++ b/grub-core/script/execute.c
@@ -978,7 +978,7 @@ grub_script_execute_cmdline (struct grub_script_cmd *cmd)
struct grub_script_argv argv = { 0, 0, 0 };
/* Lookup the command. */
- if (grub_script_arglist_to_argv (cmdline->arglist, &argv) || ! argv.args[0])
+ if (grub_script_arglist_to_argv (cmdline->arglist, &argv) || ! argv.args || ! argv.args[0])
return grub_errno;
for (i = 0; i < argv.argc; i++) {