From: Pauli <paul.dale@oracle.com>
Date: Wed, 20 Nov 2019 20:47:57 +0000 (+1000)
Subject: PROV: check for memory allocation failure in digest _dupctx.
X-Git-Tag: openssl-3.0.0-alpha1~918
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=c676ff42b0ef35b9d04fdc5e9c71baff603a3dbf;p=oweals%2Fopenssl.git

PROV: check for memory allocation failure in digest _dupctx.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10487)
---

diff --git a/providers/common/include/prov/digestcommon.h b/providers/common/include/prov/digestcommon.h
index 868cbbf79f..e5b76ff49f 100644
--- a/providers/common/include/prov/digestcommon.h
+++ b/providers/common/include/prov/digestcommon.h
@@ -49,7 +49,8 @@ static void *name##_dupctx(void *ctx)                                          \
 {                                                                              \
     CTX *in = (CTX *)ctx;                                                      \
     CTX *ret = OPENSSL_malloc(sizeof(*ret));                                   \
-    *ret = *in;                                                                \
+    if (ret != NULL)                                                           \
+        *ret = *in;                                                            \
     return ret;                                                                \
 }                                                                              \
 static OSSL_OP_digest_final_fn name##_internal_final;                          \