[PATCH master 1/2] startup: don't read glob_t if glob("/env/init/*") fails

[Ahmad Fatoum]

globfree() is a no-op if glob_t::gl_pathv is NULL. A failed glob may not
always initialize this member however, leading to potential memory
corruption.

Fix this by only freeing the glob_t if glob() had succeeded.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 common/startup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/common/startup.c b/common/startup.c
index d170cb8a7c5a..871696968a14 100644
--- a/common/startup.c
+++ b/common/startup.c
@@ -345,9 +345,9 @@ static int run_init(void)
 			run_command(scr);
 			free(scr);
 		}
-	}
 
-	globfree(&g);
+		globfree(&g);
+	}
 
 	/* source matching script in /env/bmode/ */
 	bmode = reboot_mode_get();
-- 
2.30.2