diff options
| author | Eric Biggers <ebiggers@google.com> | 2019-03-31 13:04:16 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-11 12:23:40 +0200 |
| commit | 6dc48d05964674f56beebbb295fbd9d9b89bde33 (patch) | |
| tree | d502fef8eff87623119c207a4d4618bc7b38d0f4 /crypto | |
| parent | b8205536530763083f08bb498ebe4c710954e314 (diff) | |
crypto: chacha20poly1305 - set cra_name correctly
commit 5e27f38f1f3f45a0c938299c3a34a2d2db77165a upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
| -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 0214600ba071..6c4724222e3a 100644 --- a/crypto/chacha20poly1305.c +++ b/crypto/chacha20poly1305.c @@ -637,8 +637,8 @@ 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->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->cra_driver_name, |