Commit 860c6e6a authored by Ivan Kuten's avatar Ivan Kuten Committed by John W. Linville

mac80211: fix unaligned access in ieee80211_wep_encrypt_data

Signed-off-by: default avatarIvan Kuten <ivan.kuten@promwad.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent b50563a6
......@@ -17,6 +17,7 @@
#include <linux/err.h>
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <asm/unaligned.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
......@@ -125,10 +126,10 @@ void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
{
struct blkcipher_desc desc = { .tfm = tfm };
struct scatterlist sg;
__le32 *icv;
__le32 icv;
icv = (__le32 *)(data + data_len);
*icv = cpu_to_le32(~crc32_le(~0, data, data_len));
icv = cpu_to_le32(~crc32_le(~0, data, data_len));
put_unaligned(icv, (__le32 *)(data + data_len));
crypto_blkcipher_setkey(tfm, rc4key, klen);
sg_init_one(&sg, data, data_len + WEP_ICV_LEN);
......
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