1 files changed, 5 insertions, 0 deletions
diff --git a/src/crypto/fipsmodule/rsa/rsa_impl.c b/src/crypto/fipsmodule/rsa/rsa_impl.c
index 342f1c2c..c79f8649 100644
--- a/src/crypto/fipsmodule/rsa/rsa_impl.c
+++ b/src/crypto/fipsmodule/rsa/rsa_impl.c
@@ -533,6 +533,11 @@ err:
 
 int rsa_default_private_transform(RSA *rsa, uint8_t *out, const uint8_t *in,
                                   size_t len) {
+  if (rsa->n == NULL || rsa->d == NULL) {
+    OPENSSL_PUT_ERROR(RSA, RSA_R_VALUE_MISSING);
+    return 0;
+  }
+
   BIGNUM *f, *result;
   BN_CTX *ctx = NULL;
   unsigned blinding_index = 0;