cifs: fix double free on failed kerberos auth

[platform/kernel/linux-starfive.git] / fs / cifs / smb2pdu.c

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index a569574..4ac5b1b 100644 (file)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1479,8 +1479,11 @@ SMB2_auth_kerberos(struct SMB2_sess_data *sess_data)
 out_put_spnego_key:
        key_invalidate(spnego_key);
        key_put(spnego_key);
-       if (rc)
+       if (rc) {
                kfree_sensitive(ses->auth_key.response);
+               ses->auth_key.response = NULL;
+               ses->auth_key.len = 0;
+       }
 out:
        sess_data->result = rc;
        sess_data->func = NULL;