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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-15 20:39:05 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-15 20:39:05 +0800 |
| commit | f9b6c2feec61da989c5a090cf2344842b6743b2c (patch) | |
| tree | 8a5c0631b09285151754460e3025540991547b66 /crypto | |
| parent | d81c7d3904d88e2706b883d1d93637b0b6ddf5dc (diff) | |
| download | linux-crypto-f9b6c2feec61da989c5a090cf2344842b6743b2c.tar.gz linux-crypto-f9b6c2feec61da989c5a090cf2344842b6743b2c.zip | |
crypto: ahash - Fix setkey crash
When the alignment check was made unconditional for ahash we
may end up crashing on shash algorithms because we're always
calling alg->setkey instead of tfm->setkey.
This patch fixes it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
| -rw-r--r-- | crypto/ahash.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c index ac0798d2..28a33d06 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -145,7 +145,6 @@ int crypto_hash_walk_first_compat(struct hash_desc *hdesc, static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { - struct ahash_alg *ahash = crypto_ahash_alg(tfm); unsigned long alignmask = crypto_ahash_alignmask(tfm); int ret; u8 *buffer, *alignbuffer; @@ -158,7 +157,7 @@ static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key, alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1); memcpy(alignbuffer, key, keylen); - ret = ahash->setkey(tfm, alignbuffer, keylen); + ret = tfm->setkey(tfm, alignbuffer, keylen); kzfree(buffer); return ret; } @@ -166,13 +165,12 @@ static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key, int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { - struct ahash_alg *ahash = crypto_ahash_alg(tfm); unsigned long alignmask = crypto_ahash_alignmask(tfm); if ((unsigned long)key & alignmask) return ahash_setkey_unaligned(tfm, key, keylen); - return ahash->setkey(tfm, key, keylen); + return tfm->setkey(tfm, key, keylen); } EXPORT_SYMBOL_GPL(crypto_ahash_setkey); |