diff options
| author | Iuliana Prodan <iuliana.prodan@nxp.com> | 2019-07-31 15:08:07 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-08-09 07:11:47 +0200 |
| commit | fcd23ed57c4cccda17b0be736cdfbd7970b842c8 (patch) | |
| tree | dd736b7ee0a0990dc414d0fb35e9336c101a2cd8 /drivers/crypto/caam/caamalg.c | |
| parent | crypto: caam - check authsize (diff) | |
| download | linux-fcd23ed57c4cccda17b0be736cdfbd7970b842c8.tar.xz linux-fcd23ed57c4cccda17b0be736cdfbd7970b842c8.zip | |
crypto: caam - check assoclen
Check assoclen to solve the extra tests that expect -EINVAL to be
returned when the associated data size is not valid.
Validated assoclen for RFC4106 and RFC4543 which expects an assoclen
of 16 or 20.
Based on seqiv, IPsec ESP and RFC4543/RFC4106 the assoclen is sizeof IP
Header (spi, seq_no, extended seq_no) and IV len. This can be 16 or 20
bytes.
Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam/caamalg.c')
| -rw-r--r-- | drivers/crypto/caam/caamalg.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index 591906988a22..f832491a6bd9 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -1598,10 +1598,7 @@ static int chachapoly_decrypt(struct aead_request *req) static int ipsec_gcm_encrypt(struct aead_request *req) { - if (req->assoclen < 8) - return -EINVAL; - - return gcm_encrypt(req); + return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_encrypt(req); } static int aead_encrypt(struct aead_request *req) @@ -1675,10 +1672,7 @@ static int gcm_decrypt(struct aead_request *req) static int ipsec_gcm_decrypt(struct aead_request *req) { - if (req->assoclen < 8) - return -EINVAL; - - return gcm_decrypt(req); + return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_decrypt(req); } static int aead_decrypt(struct aead_request *req) |