[PATCH] crypto: testmgr: limit IV copy length in aead tests
From: Cristian Stoica <hidden>
Date: 2015-01-28 20:36:04
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
The working copy of IV is the same size as the transformation's IV. It is not necessary to copy more than that from the template since iv_len is usually less than MAX_IVLEN and the rest of the copied data is garbage. Signed-off-by: Cristian Stoica <redacted> --- crypto/testmgr.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 758d028..f4ed6d4 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c@@ -429,7 +429,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc, struct scatterlist *sgout; const char *e, *d; struct tcrypt_result result; - unsigned int authsize; + unsigned int authsize, iv_len; void *input; void *output; void *assoc;
@@ -500,10 +500,11 @@ static int __test_aead(struct crypto_aead *tfm, int enc, memcpy(input, template[i].input, template[i].ilen); memcpy(assoc, template[i].assoc, template[i].alen); + iv_len = crypto_aead_ivsize(tfm); if (template[i].iv) - memcpy(iv, template[i].iv, MAX_IVLEN); + memcpy(iv, template[i].iv, iv_len); else - memset(iv, 0, MAX_IVLEN); + memset(iv, 0, iv_len); crypto_aead_clear_flags(tfm, ~0); if (template[i].wk)
--
2.2.0