Fix memory leak in KDC PKINIT code

Commit e5c77a11341a79e6af1e5aef7c587a5b75a9e378 introduced a memory
leak of the client public key in server_process_dh().  Free
client_pubkey on success as well as failure.

(cherry picked from commit cefc250efd71515dd665b606bcb993e617068758)

ticket: 8644
version_fixed: 1.15.3

diff --git a/src/plugins/preauth/pkinit/pkinit_crypto_openssl.c b/src/plugins/preauth/pkinit/pkinit_crypto_openssl.c
index 4b86a6f302ddc7a12d17eded25f0695b5a25dd21..8d565e2662aef6dc64d901eeba7b2f48f9222f71 100644 (file)
--- a/src/plugins/preauth/pkinit/pkinit_crypto_openssl.c
+++ b/src/plugins/preauth/pkinit/pkinit_crypto_openssl.c
@@ -2991,6 +2991,7 @@ server_process_dh(krb5_context context,
 
     retval = 0;
 
+    BN_free(client_pubkey);
     if (dh_server != NULL)
         DH_free(dh_server);
     return retval;