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ossl_provider_set_module_path: Prevent potential UAF
author
Tomas Mraz
<tomas@openssl.org>
Wed, 9 Jun 2021 14:27:05 +0000
(16:27 +0200)
committer
Pauli
<pauli@openssl.org>
Thu, 10 Jun 2021 22:52:14 +0000
(08:52 +1000)
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15680)
crypto/provider_core.c
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diff --git
a/crypto/provider_core.c
b/crypto/provider_core.c
index 30fa44d789a0f054ef54be37a7e28be6776e0a41..c6a8fa3f2693954cd9a56c8040ff8617678cc952 100644
(file)
--- a/
crypto/provider_core.c
+++ b/
crypto/provider_core.c
@@
-483,6
+483,7
@@
void ossl_provider_free(OSSL_PROVIDER *prov)
int ossl_provider_set_module_path(OSSL_PROVIDER *prov, const char *module_path)
{
OPENSSL_free(prov->path);
+ prov->path = NULL;
if (module_path == NULL)
return 1;
if ((prov->path = OPENSSL_strdup(module_path)) != NULL)