Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH 5.4 04/61] ath9k: Clear key cache explicitly on disabling hardware | Date | Tue, 24 Aug 2021 13:00:09 -0400 |
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From: Jouni Malinen <jouni@codeaurora.org>
commit 73488cb2fa3bb1ef9f6cf0d757f76958bd4deaca upstream.
Now that ath/key.c may not be explicitly clearing keys from the key cache, clear all key cache entries when disabling hardware to make sure no keys are left behind beyond this point.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20201214172118.18100-3-jouni@codeaurora.org Cc: Pali Rohár <pali@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/wireless/ath/ath9k/main.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index d14e01da3c31..eae7b7e58429 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -896,6 +896,11 @@ static void ath9k_stop(struct ieee80211_hw *hw) spin_unlock_bh(&sc->sc_pcu_lock); + /* Clear key cache entries explicitly to get rid of any potentially + * remaining keys. + */ + ath9k_cmn_init_crypto(sc->sc_ah); + ath9k_ps_restore(sc); sc->ps_idle = prev_idle; -- 2.30.2
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