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WPS ER: Fix Enrollee entry freeing on timeout

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Must unlink the entry first before trying to remove it to avoid
leaving behind pointers to freed memory.
This commit is contained in:
Jouni Malinen 2009-11-20 21:56:39 +02:00
parent a3c6598fcd
commit 7c009db2a6
1 changed files with 15 additions and 1 deletions
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16
src/wps/wps_er.c
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@ -676,8 +676,22 @@ static void wps_er_http_resp_ok(struct http_request *req)
static void wps_er_sta_timeout(void *eloop_data, void *user_ctx)
{
struct wps_er_sta *sta = eloop_data;
struct wps_er_sta *prev, *tmp, *sta = eloop_data;
wpa_printf(MSG_DEBUG, "WPS ER: STA entry timed out");
tmp = sta->ap->sta;
prev = NULL;
while (tmp) {
if (tmp == sta)
break;
prev = tmp;
tmp = tmp->next;
}
if (tmp) {
if (prev)
prev->next = sta->next;
else
sta->ap->sta = sta->next;
}
wps_er_sta_free(sta);
}