[CRYPTO]: Fix zero-extension bug on 64-bit architectures.

Noticed by Ken-ichirou MATSUZAWA. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
kernel-patches · Jul 15, 2005 · 9d853c3 · 9d853c3
1 parent ba460e4
commit 9d853c3
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/crypto/cipher.c b/crypto/cipher.c
@@ -41,7 +41,7 @@ static unsigned int crypt_slow(const struct cipher_desc *desc,
 			       struct scatter_walk *in,
 			       struct scatter_walk *out, unsigned int bsize)
 {
-	unsigned int alignmask = crypto_tfm_alg_alignmask(desc->tfm);
+	unsigned long alignmask = crypto_tfm_alg_alignmask(desc->tfm);
 	u8 buffer[bsize * 2 + alignmask];
 	u8 *src = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
 	u8 *dst = src + bsize;
@@ -160,7 +160,7 @@ static int crypt_iv_unaligned(struct cipher_desc *desc,
 			      unsigned int nbytes)
 {
 	struct crypto_tfm *tfm = desc->tfm;
-	unsigned int alignmask = crypto_tfm_alg_alignmask(tfm);
+	unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
 	u8 *iv = desc->info;
 
 	if (unlikely(((unsigned long)iv & alignmask))) {
@@ -424,7 +424,7 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm)
 	}
 
 	if (ops->cit_mode == CRYPTO_TFM_MODE_CBC) {
-		unsigned int align;
+		unsigned long align;
 		unsigned long addr;
 
 	    	switch (crypto_tfm_alg_blocksize(tfm)) {

diff --git a/crypto/internal.h b/crypto/internal.h
@@ -75,7 +75,7 @@ static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg,
 
 	switch (flags & CRYPTO_TFM_MODE_MASK) {
 	case CRYPTO_TFM_MODE_CBC:
-		len = ALIGN(len, alg->cra_alignmask + 1);
+		len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);
 		len += alg->cra_blocksize;
 		break;
 	}