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Diffstat (limited to 'crypto/pkcs7/pk7_smime.c')
-rw-r--r--crypto/pkcs7/pk7_smime.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/crypto/pkcs7/pk7_smime.c b/crypto/pkcs7/pk7_smime.c
index 44187230ef043..a95db62178ed7 100644
--- a/crypto/pkcs7/pk7_smime.c
+++ b/crypto/pkcs7/pk7_smime.c
@@ -1,5 +1,5 @@
/*
- * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1999-2020 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
@@ -301,7 +301,7 @@ int PKCS7_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store,
char *ptr;
long len;
len = BIO_get_mem_data(indata, &ptr);
- tmpin = BIO_new_mem_buf(ptr, len);
+ tmpin = (len == 0) ? indata : BIO_new_mem_buf(ptr, len);
if (tmpin == NULL) {
PKCS7err(PKCS7_F_PKCS7_VERIFY, ERR_R_MALLOC_FAILURE);
goto err;