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WNM: Fix Sleep Mode AP processing in open network

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The previous version could end up calling WPA authenticator routines
even though the authenticator had not been initialized and this could
result in NULL pointer dereference.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-12-26 21:08:50 +02:00
parent 3c1060ff8f
commit 629edfef81
1 changed files with 3 additions and 2 deletions
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5
src/ap/wpa_auth.c
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@ -2457,7 +2457,7 @@ static int wpa_group_update_sta(struct wpa_state_machine *sm, void *ctx)
/* update GTK when exiting WNM-Sleep Mode */
void wpa_wnmsleep_rekey_gtk(struct wpa_state_machine *sm)
{
if (sm->is_wnmsleep)
if (sm == NULL || sm->is_wnmsleep)
return;
wpa_group_update_sta(sm, NULL);
@ -2466,7 +2466,8 @@ void wpa_wnmsleep_rekey_gtk(struct wpa_state_machine *sm)
void wpa_set_wnmsleep(struct wpa_state_machine *sm, int flag)
{
sm->is_wnmsleep = !!flag;
if (sm)
sm->is_wnmsleep = !!flag;
}