1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/bn/bn_mont.c b/src/lib/libcrypto/bn/bn_mont.c
index c9ebdbaabe..b79b1b60da 100644
--- a/src/lib/libcrypto/bn/bn_mont.c
+++ b/src/lib/libcrypto/bn/bn_mont.c
@@ -273,7 +273,7 @@ int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)
 
         BN_init(&Ri);
         R= &(mont->RR);                                 /* grab RR as a temp */
-        BN_copy(&(mont->N),mod);                        /* Set N */
+        if (!BN_copy(&(mont->N),mod)) goto err;         /* Set N */
         mont->N.neg = 0;
 
 #ifdef MONT_WORD