From: Tianyi Song <songty6@gmail.com>
Date: Tue, 25 Feb 2025 05:35:03 +0000 (+0800)
Subject: openssl: check return value of X509_get0_pubkey
X-Git-Tag: curl-8_13_0~357
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5addb3e1cc524f32c860f22f5740aace8699e28d;p=thirdparty%2Fcurl.git

openssl: check return value of X509_get0_pubkey

Fixes #16468
Closes #16469
---

diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 3816ce14e9..c7d84291c7 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -4532,7 +4532,7 @@ static void infof_certstack(struct Curl_easy *data, const SSL *ssl)
                                                sizeof(group_name), NULL);
       msnprintf(group_name_final, sizeof(group_name_final), "/%s", group_name);
     }
-    type_name = EVP_PKEY_get0_type_name(current_pkey);
+    type_name = current_pkey ? EVP_PKEY_get0_type_name(current_pkey) : NULL;
 #else
     get_group_name = 0;
     type_name = NULL;