From 6733843f87aa3b1ad3dfe1ae76f0c76329617909 Mon Sep 17 00:00:00 2001
From: Allen Bai <abai@localhost.localdomain>
Date: Wed, 5 Jun 2019 10:30:31 -0400
Subject: [PATCH] lib/util: Fix segfault when validating filename

This change fixes the segfault issue when calling ostree_repo_checkout_tree with
empty GFileInfo. A simple condition check for NULL value is added at
src/libotutil/ot-unix-utils.c:46. Closes: ostreedev#1864.

Closes: #1868
Approved by: jlebon
---
 src/libotutil/ot-unix-utils.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libotutil/ot-unix-utils.c b/src/libotutil/ot-unix-utils.c
index 7778ca11..17016ae1 100644
--- a/src/libotutil/ot-unix-utils.c
+++ b/src/libotutil/ot-unix-utils.c
@@ -43,6 +43,8 @@ gboolean
 ot_util_filename_validate (const char *name,
                            GError    **error)
 {
+  if (name == NULL)
+    return glnx_throw (error, "Invalid NULL filename");
   if (strcmp (name, ".") == 0)
     return glnx_throw (error, "Invalid self-referential filename '.'");
   if (strcmp (name, "..") == 0)