X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbn%2Fbn_exp.c;h=feeb7649a5dc5af3ebf665710805637dc9329867;hb=6db2b1490e5da1255f4158dc8c2d4a2dd87cbe7b;hp=61ab56d0df6ce5bd509c18edc23e3ae41a581d4d;hpb=0818dbadf32d193973d84a0736c099166777c071;p=oweals%2Fopenssl.git

diff --git a/crypto/bn/bn_exp.c b/crypto/bn/bn_exp.c
index 61ab56d0df..feeb7649a5 100644
--- a/crypto/bn/bn_exp.c
+++ b/crypto/bn/bn_exp.c
@@ -78,8 +78,9 @@ int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
                 goto err;
         }
     }
-    if (r != rr)
-        BN_copy(r, rr);
+    if (r != rr && BN_copy(r, rr) == NULL)
+        goto err;
+
     ret = 1;
  err:
     BN_CTX_end(ctx);