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 CB343C43334 for ; Sun, 5 Jun 2022 18:10:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234573AbiFESKX (ORCPT ); Sun, 5 Jun 2022 14:10:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43800 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346778AbiFESKX (ORCPT ); Sun, 5 Jun 2022 14:10:23 -0400 Received: from zeniv-ca.linux.org.uk (zeniv-ca.linux.org.uk [IPv6:2607:5300:60:148a::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7DEB94DF73; Sun, 5 Jun 2022 11:10:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=rXrnuUwPk7D+tWHtBEXzNHtRzjQTrGNF6SniWI3rolg=; b=SM5YTwjOrNCcZ5nHpGy3KnPKrL 6AGfE+wFSgV0rRUMANoaJZ7td+3OVw4zzokyUM8EkYIcRxkM6E07uMG/YiDHQwkdVLYU3sbyI7kdz v2qKF5cJXDi7qS9cpKBMMuCQkIM7XLDNRNOTxHVy4kbOYbRh4rsZEpgk81dwdc2HeK9jVAgLBqdLK 6ZKaJco1G6pkxbEemvCEQYMNxL5Tum7M9TEHyPYIZPcV6QxPf6pPVDPsdvijrjqWs59kGwVAGjUq1 1Ju7kOkmxzd8/cOkdS0I4a3AFm6UQb8PwCB0WDXCMTCZRjQLNXluK+qEqDBsEaUJvZqBFJI73swJI C09VUpmQ==; Received: from viro by zeniv-ca.linux.org.uk with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nxuhZ-003qEO-3F; Sun, 05 Jun 2022 18:10:13 +0000 Date: Sun, 5 Jun 2022 18:10:13 +0000 From: Al Viro To: syzbot Cc: arve@android.com, asml.silence@gmail.com, axboe@kernel.dk, brauner@kernel.org, gregkh@linuxfoundation.org, hdanton@sina.com, hridya@google.com, io-uring@vger.kernel.org, joel@joelfernandes.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, maco@android.com, surenb@google.com, syzkaller-bugs@googlegroups.com, tkjos@android.com Subject: Re: [syzbot] KASAN: use-after-free Read in filp_close Message-ID: References: <000000000000fd54f805e0351875@google.com> <00000000000061dcef05e0b3d4e3@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: Al Viro Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Sun, Jun 05, 2022 at 04:15:58PM +0000, Al Viro wrote: > Argh... I see what's going on. Check if the following fixes the problem, > please. #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.fd