boot/grub2/0086-loader-xnu-Fix-memory-leak.patch

From bcb59ece3263d118510c4440c4da0950f224bb7f Mon Sep 17 00:00:00 2001
From: Darren Kenny <darren.kenny@oracle.com>
Date: Thu, 26 Nov 2020 12:53:10 +0000
Subject: [PATCH] loader/xnu: Fix memory leak

The code here is finished with the memory stored in name, but it only
frees it if there curvalue is valid, while it could actually free it
regardless.

The fix is a simple relocation of the grub_free() to before the test
of curvalue.

Fixes: CID 96646

Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
---
 grub-core/loader/xnu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grub-core/loader/xnu.c b/grub-core/loader/xnu.c
index 44fd5a9..eb14462 100644
--- a/grub-core/loader/xnu.c
+++ b/grub-core/loader/xnu.c
@@ -1391,9 +1391,9 @@ grub_xnu_fill_devicetree (void)
     name[len] = 0;
 
     curvalue = grub_xnu_create_value (curkey, name);
+    grub_free (name);
     if (!curvalue)
       return grub_errno;
-    grub_free (name);
    
     data = grub_malloc (grub_strlen (var->value) + 1);
     if (!data)
-- 
2.14.2