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Clear RSN timers for preauth and PTK rekeying on disassociation

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Previously, it was possible for the wpa_sm_start_preauth() and
wpa_sm_rekey_ptk() eloop callbacks to remain active after disconnection
and potentially continue to be used for the next association. This is
not correct behavior, so explicitly cancel these timeouts to avoid
unexpected attempts to complete RSN preauthentication or to request PTK
to be rekeyed.

It was possible to trigger this issue, e.g., by running the following
hwsim test case sequence: ap_wpa2_ptk_rekey ap_ft_sae_over_ds

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2015-03-06 18:40:28 +02:00 committed by Jouni Malinen
parent 9cc223c2f5
commit ac8e074ec1
1 changed files with 2 additions and 0 deletions
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2
src/rsn_supp/wpa.c
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@ -2282,6 +2282,8 @@ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid)
*/
void wpa_sm_notify_disassoc(struct wpa_sm *sm)
{
eloop_cancel_timeout(wpa_sm_start_preauth, sm, NULL);
eloop_cancel_timeout(wpa_sm_rekey_ptk, sm, NULL);
peerkey_deinit(sm);
rsn_preauth_deinit(sm);
pmksa_cache_clear_current(sm);