Avoid overflow in MDC2_Update()

Change-Id: I11dfad2f10827602680ff348534f7afe8299da54
Signed-off-by: min7.choi <min7.choi@samsung.com>

diff --git a/deps/openssl/openssl/crypto/mdc2/mdc2dgst.c b/deps/openssl/openssl/crypto/mdc2/mdc2dgst.c
index 6615cf8..2dce493 100644 (file)
--- a/deps/openssl/openssl/crypto/mdc2/mdc2dgst.c
+++ b/deps/openssl/openssl/crypto/mdc2/mdc2dgst.c
@@ -91,7 +91,7 @@ int MDC2_Update(MDC2_CTX *c, const unsigned char *in, size_t len)
 
     i = c->num;
     if (i != 0) {
-        if (i + len < MDC2_BLOCK) {
+        if (len < MDC2_BLOCK - i) {
             /* partial block */
             memcpy(&(c->data[i]), in, len);
             c->num += (int)len;