From: Jouni Malinen <j@w1.fi>
Date: Wed, 23 Dec 2009 21:16:21 +0000 (+0200)
Subject: Avoid NULL dereference on error path when default driver is used
X-Git-Tag: hostap_0_7_1~251
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a5b9337fc88ea9ff4e85220c66a062da44f1c8e1;p=thirdparty%2Fhostap.git

Avoid NULL dereference on error path when default driver is used
---

diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c
index cfe99e868..0ad30abf2 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -2032,7 +2032,7 @@ next_driver:
 	wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
 	if (wpa_s->drv_priv == NULL) {
 		const char *pos;
-		pos = os_strchr(driver, ',');
+		pos = driver ? os_strchr(driver, ',') : NULL;
 		if (pos) {
 			wpa_printf(MSG_DEBUG, "Failed to initialize driver "
 				   "interface - try next driver wrapper");