diff options
| author | Eric Biggers <ebiggers@google.com> | 2019-03-31 13:04:16 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-04-08 14:42:55 +0800 |
| commit | 5e27f38f1f3f45a0c938299c3a34a2d2db77165a (patch) | |
| tree | 9b6e91b325c5b4f941044f624f051504cd495e25 | |
| parent | dcaca01a42cc2c425154a13412b4124293a6e11e (diff) | |
| download | lwn-5e27f38f1f3f45a0c938299c3a34a2d2db77165a.tar.gz lwn-5e27f38f1f3f45a0c938299c3a34a2d2db77165a.zip | |
crypto: chacha20poly1305 - set cra_name correctly
If the rfc7539 template is instantiated with specific implementations,
e.g. "rfc7539(chacha20-generic,poly1305-generic)" rather than
"rfc7539(chacha20,poly1305)", then the implementation names end up
included in the instance's cra_name. This is incorrect because it then
prevents all users from allocating "rfc7539(chacha20,poly1305)", if the
highest priority implementations of chacha20 and poly1305 were selected.
Also, the self-tests aren't run on an instance allocated in this way.
Fix it by setting the instance's cra_name from the underlying
algorithms' actual cra_names, rather than from the requested names.
This matches what other templates do.
Fixes: 71ebc4d1b27d ("crypto: chacha20poly1305 - Add a ChaCha20-Poly1305 AEAD construction, RFC7539")
Cc: <stable@vger.kernel.org> # v4.2+
Cc: Martin Willi <martin@strongswan.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/chacha20poly1305.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c index ed2e12e26dd8..279d816ab51d 100644 --- a/crypto/chacha20poly1305.c +++ b/crypto/chacha20poly1305.c @@ -645,8 +645,8 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb, err = -ENAMETOOLONG; if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME, - "%s(%s,%s)", name, chacha_name, - poly_name) >= CRYPTO_MAX_ALG_NAME) + "%s(%s,%s)", name, chacha->base.cra_name, + poly->cra_name) >= CRYPTO_MAX_ALG_NAME) goto out_drop_chacha; if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s(%s,%s)", name, chacha->base.cra_driver_name, |