From: Ben Greear <greearb@candelatech.com>
Date: Sun, 3 Feb 2013 11:51:54 +0000 (+0200)
Subject: hostapd: Fix crash when scan fails
X-Git-Tag: aosp-kk-from-upstream~617
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=085b29f1fee518921c271f4ba48e54ce24dde38e;p=thirdparty%2Fhostap.git

hostapd: Fix crash when scan fails

When scan failed, the wpa_driver_nl80211_scan method tried
to recursively call itself, but it passed in the wrong argument
for the void*, and so then it crashed accessing bad memory.

With this fix, hostapd still will not retry the scan later, but
at least it will exit cleanly and won't polute the file system
with core files.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 6d2ed2831..f20e94812 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -3719,7 +3719,7 @@ static int wpa_driver_nl80211_scan(void *priv,
 				    bss, NL80211_IFTYPE_STATION))
 				goto nla_put_failure;
 
-			if (wpa_driver_nl80211_scan(drv, params)) {
+			if (wpa_driver_nl80211_scan(bss, params)) {
 				wpa_driver_nl80211_set_mode(bss, drv->nlmode);
 				goto nla_put_failure;
 			}