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* grub-core/normal/menu.c (grub_menu_execute_entry): Fix NULL

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dereference.
This commit is contained in:
Vladimir 'phcoder' Serbinenko committed 2011-07-25 07:48:19 +02:00
1 parent 583168a216
commit b70e4cb08d
2 files changed
+10 -2
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grub-core/normal/menu.c
+5 -2
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@@ -232,7 +232,8 @@ grub_menu_execute_entry(grub_menu_entry_t entry, int auto_boot)
grub_env_export ("chosen");
grub_free (buf);
}
for (ptr = def; *ptr; ptr++)
for (ptr = def; ptr && *ptr; ptr++)
{
if (ptr[0] == '>' && ptr[1] == '>')
{
@@ -242,10 +243,12 @@ grub_menu_execute_entry(grub_menu_entry_t entry, int auto_boot)
if (ptr[0] == '>')
break;
}
if (ptr[0] && ptr[1])
if (ptr && ptr[0] && ptr[1])
grub_env_set ("default", ptr + 1);
else
grub_env_unset ("default");
grub_script_execute_sourcecode (entry->sourcecode, entry->argc, entry->args);
if (errs_before != grub_err_printed_errors)