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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2019-09-10 11:42:05 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-17 19:48:46 +0100 |
| commit | d7835f2b853bae5f6c0edf8bffc1eeff9c858e86 (patch) | |
| tree | e983b78410b7531b4210fb83b68797f4dd2ac776 /crypto | |
| parent | ea3506e4297276842ca39f0a987dbe757b32a41d (diff) | |
| download | linux-stable-d7835f2b853bae5f6c0edf8bffc1eeff9c858e86.tar.gz linux-stable-d7835f2b853bae5f6c0edf8bffc1eeff9c858e86.tar.bz2 linux-stable-d7835f2b853bae5f6c0edf8bffc1eeff9c858e86.zip | |
crypto: algif_skcipher - Use chunksize instead of blocksize
commit 5b0fe9552336338acb52756daf65dd7a4eeca73f upstream.
When algif_skcipher does a partial operation it always process data
that is a multiple of blocksize. However, for algorithms such as
CTR this is wrong because even though it can process any number of
bytes overall, the partial block must come at the very end and not
in the middle.
This is exactly what chunksize is meant to describe so this patch
changes blocksize to chunksize.
Fixes: 8ff590903d5f ("crypto: algif_skcipher - User-space...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/algif_skcipher.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index c1601edd70e3..e2c8ab408bed 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -56,7 +56,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, struct alg_sock *pask = alg_sk(psk); struct af_alg_ctx *ctx = ask->private; struct crypto_skcipher *tfm = pask->private; - unsigned int bs = crypto_skcipher_blocksize(tfm); + unsigned int bs = crypto_skcipher_chunksize(tfm); struct af_alg_async_req *areq; int err = 0; size_t len = 0; |