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libceph: make sure ceph_aes_crypt() IV is aligned

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... otherwise the crypto stack will align it for us with a GFP_ATOMIC
allocation and a memcpy() -- see skcipher_walk_first().

Signed-off-by: Ilya Dryomov <[email protected]>
This commit is contained in:
Ilya Dryomov 2017-01-16 19:16:46 +01:00
commit 124f930b8c
1 changed files with 1 additions and 1 deletions
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2
net/ceph/crypto.c
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@ -214,7 +214,7 @@ static int ceph_aes_crypt(const struct ceph_crypto_key *key, bool encrypt,
SKCIPHER_REQUEST_ON_STACK(req, key->tfm);
struct sg_table sgt;
struct scatterlist prealloc_sg;
char iv[AES_BLOCK_SIZE];
char iv[AES_BLOCK_SIZE] __aligned(8);
int pad_byte = AES_BLOCK_SIZE - (in_len & (AES_BLOCK_SIZE - 1));
int crypt_len = encrypt ? in_len + pad_byte : in_len;
int ret;