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nl80211: Validate NL80211_ATTR_KEY_SEQ length

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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>
This commit is contained in:
Jouni Malinen
2009-05-15 12:38:32 +03:00
committed by John W. Linville
parent cc65965cbb
commit 9f26a95221
3 changed files with 19 additions and 3 deletions
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6
net/mac80211/key.c
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@ -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;