From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 549EAC433F5 for ; Mon, 21 Feb 2022 09:14:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235753AbiBUJO5 (ORCPT ); Mon, 21 Feb 2022 04:14:57 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:33876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349390AbiBUJMY (ORCPT ); Mon, 21 Feb 2022 04:12:24 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2ACDA2BB08; Mon, 21 Feb 2022 01:05:15 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 7473DCE0E77; Mon, 21 Feb 2022 09:05:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68678C340E9; Mon, 21 Feb 2022 09:05:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1645434311; bh=BwN+w4h2VZEKhGNP1surtVczvg8sqWYqM7akq4g9dEQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hB2GwNOTZeZv5GMuM+MZHUbOgUpdzWTWjOHeD6APzUScCeJLzeXgRkg1LXhYGyxv5 dClTzVFVjqqqHEquz8BEfUQztaLNj/eT5mdtSSrdi1rDjscAylN2q4i1puJwaYBUtv SxUwYInXJBKTBC8sGZIbgzcTxWOOpnB3yzEJBD8Q= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexey Khoroshilov , Andrew Lunn , Jakub Kicinski Subject: [PATCH 5.10 058/121] net: dsa: lantiq_gswip: fix use after free in gswip_remove() Date: Mon, 21 Feb 2022 09:49:10 +0100 Message-Id: <20220221084923.182435760@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220221084921.147454846@linuxfoundation.org> References: <20220221084921.147454846@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Alexey Khoroshilov commit 8c6ae46150a453f8ae9a6cd49b45f354f478587d upstream. of_node_put(priv->ds->slave_mii_bus->dev.of_node) should be done before mdiobus_free(priv->ds->slave_mii_bus). Signed-off-by: Alexey Khoroshilov Fixes: 0d120dfb5d67 ("net: dsa: lantiq_gswip: don't use devres for mdiobus") Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/1644921768-26477-1-git-send-email-khoroshilov@ispras.ru Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/lantiq_gswip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/dsa/lantiq_gswip.c +++ b/drivers/net/dsa/lantiq_gswip.c @@ -2114,8 +2114,8 @@ static int gswip_remove(struct platform_ if (priv->ds->slave_mii_bus) { mdiobus_unregister(priv->ds->slave_mii_bus); - mdiobus_free(priv->ds->slave_mii_bus); of_node_put(priv->ds->slave_mii_bus->dev.of_node); + mdiobus_free(priv->ds->slave_mii_bus); } for (i = 0; i < priv->num_gphy_fw; i++)