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 EAD8FC433EF for ; Sun, 5 Jun 2022 18:29:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346824AbiFES3L (ORCPT ); Sun, 5 Jun 2022 14:29:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346809AbiFES3K (ORCPT ); Sun, 5 Jun 2022 14:29:10 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 57A4412AAF for ; Sun, 5 Jun 2022 11:29:09 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id y18-20020a927d12000000b002d3dd2a5d53so9692123ilc.0 for ; Sun, 05 Jun 2022 11:29:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=cOxqeJ/JYbi6sFMPo1alnVEMhCg5I3K/OxKpxuWXTYI=; b=7lxRhtgRpK43I4zuj7Mrs0ADIveUDuDw6dmQYdwugHUtKG+CDD8bR9fP5CRgRLhT8S ayIdhhSO1ZL4M0iaHB4vyyYnA1fI0dABoawyF6ejtSR7/Beuf+OCKFZJO+mY9wZNU9hh ISAhVLqKcBmSX2Zn9mqzBuQD4EGJtlSpoFWp98hRA7l28e6PdL0Ej9NCYDJMSULmqhj4 59SI+6An9cG00tRkws/xwKOvNCdGfTqAwZpxr7Cz+mg/gKhDqvUbkBqfwaF/rglfqsI9 Fk1XQMcBd/PNzJBQjkNbppV1wrGqIC7xXV0fb+8rpQQbRvB9z1SnUptngwSpFRwSMVHf J/nA== X-Gm-Message-State: AOAM533PjJtP7xsnjPhL0zhQ1sIRjve8qmTsMEbu1yyPtdOfKI4KI/Xu jePNXN69nfiz5YjrubpbJfMSjMDLb2hFqK5mlzGLncUwBNRP X-Google-Smtp-Source: ABdhPJyq9YrZ+fId6i8Q08L+Nm7sWYRLuY83ASTXFEaAfmlxLjokGP1QyIr4HShjlItpecypP1C3Nd3mZ90/8AIoQlqzT3E5roFs MIME-Version: 1.0 X-Received: by 2002:a05:6638:3792:b0:331:884c:d9af with SMTP id w18-20020a056638379200b00331884cd9afmr5005004jal.257.1654453748639; Sun, 05 Jun 2022 11:29:08 -0700 (PDT) Date: Sun, 05 Jun 2022 11:29:08 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fc2dfb05e0b7873b@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in filp_close From: syzbot To: 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, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+47dd250f527cb7bebf24@syzkaller.appspotmail.com Tested on: commit: 6dda6985 fix the breakage in close_fd_get_file() calli.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.fd kernel config: https://syzkaller.appspot.com/x/.config?x=d4042ecb71632a26 dashboard link: https://syzkaller.appspot.com/bug?extid=47dd250f527cb7bebf24 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.