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Fix Beacon RX before AP setup completion

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It is possible for the driver to report Beacon RX prior to hostapd
having completed AP mode setup, e.g., when changing country code. Beacon
frame processing for OLBC was not prepared for this and could trigger
segfault due to NULL pointer dereference. Fix this by ignoring the
Beacon frames received prior to completing interface setup when
determining OLBC updates.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-02-06 15:22:06 +02:00
parent 72e7fb3fd9
commit 334ec001bb
1 changed files with 2 additions and 1 deletions
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3
src/ap/ap_list.c
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@ -32,7 +32,8 @@ static int ap_list_beacon_olbc(struct hostapd_iface *iface, struct ap_info *ap)
{ {
int i; int i;
if (iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G || if (iface->current_mode == NULL ||
iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G ||
iface->conf->channel != ap->channel) iface->conf->channel != ap->channel)
return 0; return 0;