From 075f9cfe7a0105e14e878b5617e80d391d016e08 Mon Sep 17 00:00:00 2001
From: Chris PeBenito <chpebeni@linux.microsoft.com>
Date: Fri, 11 Sep 2020 15:56:14 -0400
Subject: [PATCH] libselinux: Fix selabel_lookup() for the root dir.
9e4480b921bb ("Remove trailing slash on selabel_file lookups.") introduced
a bug which turns the root directory lookup "/" into an empty string.
Signed-off-by: Chris PeBenito <chpebeni@linux.microsoft.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
---
libselinux/src/label_file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libselinux/src/label_file.c b/libselinux/src/label_file.c
index 6eeeea68aea4..726394ca4332 100644
--- a/libselinux/src/label_file.c
+++ b/libselinux/src/label_file.c
@@ -902,7 +902,7 @@ static const struct spec **lookup_all(struct selabel_handle *rec,
goto finish;
}
- if (key[len - 1] == '/') {
+ if (len > 1 && key[len - 1] == '/') {
/* reuse clean_key from above if available */
if (!clean_key) {
clean_key = (char *) malloc(len);
--
2.29.0