crypto/cnxk: add null check for RSA key data

Coverity is reporting FORWARD_NULL issue when qt data is NULL.
Adding NULL check for this.

Coverity issue: 371893
Fixes: 5a3513caeb45 ("crypto/cnxk: add asymmetric session")

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>

diff --git a/drivers/crypto/cnxk/cnxk_ae.h b/drivers/crypto/cnxk/cnxk_ae.h
index 174a940..00dc75e 100644 (file)
--- a/drivers/crypto/cnxk/cnxk_ae.h
+++ b/drivers/crypto/cnxk/cnxk_ae.h
@@ -85,6 +85,9 @@ cnxk_ae_fill_rsa_params(struct cnxk_ae_sess *sess,
        size_t len = (mod_len / 2);
        uint64_t total_size;
 
+       if (qt.p.length != 0 && qt.p.data == NULL)
+               return -EINVAL;
+
        /* Make sure key length used is not more than mod_len/2 */
        if (qt.p.data != NULL)
                len = RTE_MIN(len, qt.p.length);
@@ -109,7 +112,8 @@ cnxk_ae_fill_rsa_params(struct cnxk_ae_sess *sess,
                rsa->qt.dQ.data = rsa->qt.q.data + qt.q.length;
                memcpy(rsa->qt.dQ.data, qt.dQ.data, qt.dQ.length);
                rsa->qt.p.data = rsa->qt.dQ.data + qt.dQ.length;
-               memcpy(rsa->qt.p.data, qt.p.data, qt.p.length);
+               if (qt.p.data != NULL)
+                       memcpy(rsa->qt.p.data, qt.p.data, qt.p.length);
                rsa->qt.dP.data = rsa->qt.p.data + qt.p.length;
                memcpy(rsa->qt.dP.data, qt.dP.data, qt.dP.length);
                rsa->qt.qInv.data = rsa->qt.dP.data + qt.dP.length;