From: Kay Sievers <kay.sievers@vrfy.org>
Date: Thu, 20 Nov 2008 01:43:34 +0000 (+0100)
Subject: libudev: accept NULL whitelist in util_replace_chars()
X-Git-Tag: 174~1300
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bbfaec2b2f43ddf7b8ef42a2a687f536ac445183;p=systemd

libudev: accept NULL whitelist in util_replace_chars()
---

diff --git a/udev/lib/libudev-util.c b/udev/lib/libudev-util.c
index f4e78850..1cd18c89 100644
--- a/udev/lib/libudev-util.c
+++ b/udev/lib/libudev-util.c
@@ -398,7 +398,7 @@ int udev_util_replace_chars(char *str, const char *white)
 		}
 
 		/* if space is allowed, replace whitespace with ordinary space */
-		if (isspace(str[i]) && strchr(white, ' ') != NULL) {
+		if (isspace(str[i]) && white != NULL && strchr(white, ' ') != NULL) {
 			str[i] = ' ';
 			i++;
 			replaced++;