Update copyright year

[openssl.git] / crypto / bn / bn_ctx.c

diff --git a/crypto/bn/bn_ctx.c b/crypto/bn/bn_ctx.c
index 68c04687437f1d9fdf7971adb60fa68399d57d38..54b799961aa43cb1fe89de3258dde33fa00aada6 100644 (file)
--- a/crypto/bn/bn_ctx.c
+++ b/crypto/bn/bn_ctx.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
@@ -227,6 +227,8 @@ BIGNUM *BN_CTX_get(BN_CTX *ctx)
     }
     /* OK, make sure the returned bignum is "zero" */
     BN_zero(ret);
+    /* clear BN_FLG_CONSTTIME if leaked from previous frames */
+    ret->flags &= (~BN_FLG_CONSTTIME);
     ctx->used++;
     CTXDBG_RET(ctx, ret);
     return ret;
@@ -255,9 +257,12 @@ static int BN_STACK_push(BN_STACK *st, unsigned int idx)
         /* Need to expand */
         unsigned int newsize =
             st->size ? (st->size * 3 / 2) : BN_CTX_START_FRAMES;
-        unsigned int *newitems = OPENSSL_malloc(sizeof(*newitems) * newsize);
-        if (newitems == NULL)
+        unsigned int *newitems;
+
+        if ((newitems = OPENSSL_malloc(sizeof(*newitems) * newsize)) == NULL) {
+            BNerr(BN_F_BN_STACK_PUSH, ERR_R_MALLOC_FAILURE);
             return 0;
+        }
         if (st->depth)
             memcpy(newitems, st->indexes, sizeof(*newitems) * st->depth);
         OPENSSL_free(st->indexes);
@@ -306,9 +311,12 @@ static BIGNUM *BN_POOL_get(BN_POOL *p, int flag)
 
     /* Full; allocate a new pool item and link it in. */
     if (p->used == p->size) {
-        BN_POOL_ITEM *item = OPENSSL_malloc(sizeof(*item));
-        if (item == NULL)
+        BN_POOL_ITEM *item;
+
+        if ((item = OPENSSL_malloc(sizeof(*item))) == NULL) {
+            BNerr(BN_F_BN_POOL_GET, ERR_R_MALLOC_FAILURE);
             return NULL;
+        }
         for (loop = 0, bn = item->vals; loop++ < BN_CTX_POOL_SIZE; bn++) {
             bn_init(bn);
             if ((flag & BN_FLG_SECURE) != 0)