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| author | Harsh Jain <harsh@chelsio.com> | 2017-01-27 16:09:06 +0530 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-02-03 18:09:31 +0800 |
| commit | 7c2cf1c4615cc2f576d0604406cdf0065f00b83b (patch) | |
| tree | 08407f9ebbdac1343473259b8d5099d6089527af /drivers/crypto/chelsio | |
| parent | 0b529f143e8baad441a5aac9ad55ec2434d8fb46 (diff) | |
| download | linux-7c2cf1c4615cc2f576d0604406cdf0065f00b83b.tar.gz linux-7c2cf1c4615cc2f576d0604406cdf0065f00b83b.tar.bz2 linux-7c2cf1c4615cc2f576d0604406cdf0065f00b83b.zip | |
crypto: chcr - Fix key length for RFC4106
Check keylen before copying salt to avoid wrap around of Integer.
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/chelsio')
| -rw-r--r-- | drivers/crypto/chelsio/chcr_algo.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index d29c2b45d3ab..b4b78b37f8a6 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -2192,8 +2192,8 @@ static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key, unsigned int ck_size; int ret = 0, key_ctx_size = 0; - if (get_aead_subtype(aead) == - CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) { + if (get_aead_subtype(aead) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 && + keylen > 3) { keylen -= 4; /* nonce/salt is present in the last 4 bytes */ memcpy(aeadctx->salt, key + keylen, 4); } |