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authorFelix Fietkau <nbd@openwrt.org>2010-07-02 14:45:22 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-07-02 13:44:38 -0400
commit8e67ca7c9266a4f920d70d3a2cbf03a597d28ea7 (patch)
tree10c44b13c677caefa9f85b8dff4c85a800782c91 /drivers
parent347809fc2c99da5b89f1c014f3e5a0f85c04803c (diff)
ath9k: fix crash with WEP in ad-hoc mode
Commit eed8e22f0133e8278b1f8079fcb452f1f9692f9d added support for using multicast key lookup to support per-vif/sta keys for AP and ad-hoc. Unfortunately, it also introduced a crash in ad-hoc mode when the sta pointer is NULL, which happens when setting up an interface with WEP keys. This patch fixes it by falling back to the assigned key index. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Reported-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath9k/common.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index 16e2849f644..c86f7d3593a 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -319,6 +319,10 @@ int ath9k_cmn_key_config(struct ath_common *common,
idx = ath_reserve_key_cache_slot(common, key->alg);
break;
case NL80211_IFTYPE_ADHOC:
+ if (!sta) {
+ idx = key->keyidx;
+ break;
+ }
memcpy(gmac, sta->addr, ETH_ALEN);
gmac[0] |= 0x01;
mac = gmac;