nl80211: Validate NL80211_ATTR_KEY_SEQ length

Validate RSC (NL80211_ATTR_KEY_SEQ) length in nl80211/cfg80211 instead
of having to do this in all the drivers.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 827ea8e6ee0a..ce267565e180 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -320,7 +320,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
         case ALG_TKIP:
                 key->conf.iv_len = TKIP_IV_LEN;
                 key->conf.icv_len = TKIP_ICV_LEN;
-                if (seq && seq_len == 6) {
+                if (seq) {
                         for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
                                 key->u.tkip.rx[i].iv32 =
                                         get_unaligned_le32(&seq[2]);
@@ -332,7 +332,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
         case ALG_CCMP:
                 key->conf.iv_len = CCMP_HDR_LEN;
                 key->conf.icv_len = CCMP_MIC_LEN;
-                if (seq && seq_len == CCMP_PN_LEN) {
+                if (seq) {
                         for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
                                 for (j = 0; j < CCMP_PN_LEN; j++)
                                         key->u.ccmp.rx_pn[i][j] =
@@ -342,7 +342,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
         case ALG_AES_CMAC:
                 key->conf.iv_len = 0;
                 key->conf.icv_len = sizeof(struct ieee80211_mmie);
-                if (seq && seq_len == 6)
+                if (seq)
                         for (j = 0; j < 6; j++)
                                 key->u.aes_cmac.rx_pn[j] = seq[6 - j - 1];
                 break;