cleanup_gssapi_auth: avoid null pointer dereference

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>

diff --git a/gssapi.c b/gssapi.c
index 7a9b90fcdbe72e420a44e6a9e670c698b0698382..762caea3477cf47c0215d881ee1a9dd7b6ca0078 100644 (file)
--- a/gssapi.c
+++ b/gssapi.c
@@ -158,6 +158,9 @@ void cleanup_gssapi_auth(struct openconnect_info *vpninfo,
 {
        OM_uint32 minor;
 
+       if (!auth_state)
+               return;
+
        if (auth_state->gss_target_name != GSS_C_NO_NAME)
                gss_release_name(&minor, &auth_state->gss_target_name);