33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
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From 9c829900bb01d6fb22e78ba78195c78de39f64b9 Mon Sep 17 00:00:00 2001
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From: Jouni Malinen <j@w1.fi>
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Date: Sat, 04 Oct 2014 19:11:00 +0000
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Subject: Fix authenticator OKC fetch from PMKSA cache to avoid infinite loop
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If the first entry in the PMKSA cache did not match the station's MAC
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address, an infinite loop could be reached in pmksa_cache_get_okc() when
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trying to find a PMKSA cache entry for opportunistic key caching cases.
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This would only happen if OKC is enabled (okc=1 included in the
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configuration file).
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Signed-off-by: Jouni Malinen <j@w1.fi>
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---
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--- a/src/ap/pmksa_cache_auth.c
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+++ b/src/ap/pmksa_cache_auth.c
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@@ -394,15 +394,13 @@ struct rsn_pmksa_cache_entry * pmksa_cac
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struct rsn_pmksa_cache_entry *entry;
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u8 new_pmkid[PMKID_LEN];
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- entry = pmksa->pmksa;
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- while (entry) {
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+ for (entry = pmksa->pmksa; entry; entry = entry->next) {
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if (os_memcmp(entry->spa, spa, ETH_ALEN) != 0)
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continue;
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rsn_pmkid(entry->pmk, entry->pmk_len, aa, spa, new_pmkid,
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wpa_key_mgmt_sha256(entry->akmp));
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if (os_memcmp(new_pmkid, pmkid, PMKID_LEN) == 0)
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return entry;
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- entry = entry->next;
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}
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return NULL;
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}
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