commit 27e8a120b2401dbe9d8aec479d7a203cb3143398
author Azim Khan <Azim.Khan@arm.com> Wed Mar 21 14:24:11 2018 +0000
committer Azim Khan <Azim.Khan@arm.com> Wed Mar 21 14:24:11 2018 +0000
tree e22cbb815bfc8f68dc34efbcecf47f61d2b15783
parent 316b162ac34456bb36e7f8cef37bd6a50f191048

Assign NULL after freeing psk and psk_identity

library/ssl_tls.c

diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 036876c..3802e23 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -7742,6 +7742,7 @@
     {
         mbedtls_zeroize( conf->psk, conf->psk_len );
         mbedtls_free( conf->psk );
+        conf->psk = NULL;
         conf->psk_len = 0;
     }
 
@@ -7749,6 +7750,7 @@
     {
         mbedtls_zeroize( conf->psk_identity, conf->psk_identity_len );
         mbedtls_free( conf->psk_identity );
+        conf->psk_identity = NULL;
         conf->psk_identity_len = 0;
     }
 #endif