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 6AA0DC6FA82 for ; Sun, 25 Sep 2022 13:41:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231389AbiIYNk7 (ORCPT ); Sun, 25 Sep 2022 09:40:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48674 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229561AbiIYNk4 (ORCPT ); Sun, 25 Sep 2022 09:40:56 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5AC3322BF9 for ; Sun, 25 Sep 2022 06:40:54 -0700 (PDT) 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 D2AC4CE0E0B for ; Sun, 25 Sep 2022 13:40:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6A465C433C1; Sun, 25 Sep 2022 13:40:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1664113250; bh=xKtKRzURGjJuqG0yMhXUwvYFPApsFgss21P4sOLHiao=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=NHqjNgXrzzjEvCJJ2oxK4r7v/dj6LboSyQi8e6NSgFo5AOuiLkwM/Q2bztNNW+d+S t7Z2agyf9qDH7cHCN9qXj+JnKWZgQzr4Uvc79ZnrA/BlOpBUwxiCZ0pDewHQN5o95I TN4rIvTsEbXxJKg10o3L+cB6piOCl2rnqBLx3Sc0= Date: Sun, 25 Sep 2022 15:40:48 +0200 From: Greg Kroah-Hartman To: Tetsuo Handa Cc: Tejun Heo , syzbot , syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org, Hillf Danton Subject: Re: [PATCH] kernfs: fix UAF race condition in __kernfs_remove() Message-ID: References: <000000000000646c9605e714ec6e@google.com> <7f489b14-2fdc-3d91-c87e-6a802bd8592d@I-love.SAKURA.ne.jp> <83be5776-4038-90d5-f202-9a6e97b6d551@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <83be5776-4038-90d5-f202-9a6e97b6d551@I-love.SAKURA.ne.jp> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Sep 25, 2022 at 10:20:27PM +0900, Tetsuo Handa wrote: > On 2022/09/25 22:13, Greg Kroah-Hartman wrote: > > Isn't this already handled by: > > https://lore.kernel.org/r/20220913121723.691454-1-lk@c--e.de > > > > that will show up in the next linux-next tree. > > Oh, I didn't know that patch. > > But is that patch complete, for there are three __kernfs_remove() callers? > syzbot seems to think it works :)