Received: by 2002:a05:6358:a55:b0:ec:fcf4:3ecf with SMTP id 21csp214235rwb; Thu, 12 Jan 2023 18:39:21 -0800 (PST) X-Google-Smtp-Source: AMrXdXuHm3YgY9XO9lNjIvqUnpVWS/6e6ZUJmMig0WK+TYZUoyNZMwYmLWdPC3tyTLixd+hfG8tb X-Received: by 2002:a17:906:8447:b0:7c4:fa17:7203 with SMTP id e7-20020a170906844700b007c4fa177203mr58466772ejy.63.1673577561413; Thu, 12 Jan 2023 18:39:21 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673577561; cv=none; d=google.com; s=arc-20160816; b=MNbYXTaehCl5+B/w8s7jwMIOjiMcDo+JRUQgm/OKod5lpWjxcPHFY6Cve3/PRGZPuF CkiYJ1Rok9LNuJ8EVpO/7I87/WqV8Jfs2bphIJ+7aU6jr6DmxtdYo/nbyUFgCPDSjgOX Se4drs0UbdMLC7udmMAUXSCRPUXigAKHrKLzWe9ZjhlT4Ha28w/+j8c3WFrcivJJS5a1 LXXHrgVxu42fsAWhDyyF4F4UPwFhUFOJXVTZAXMt2/QBBhsZLY3auPjG8EF+/xpBQCif JowobP3qrpA+wGiIzAuym9jxBRPPhrASwDvAROBDO+TFnm6QGRe7sbcObWcIWg0fv1rH vF+Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:to:from:subject:message-id:in-reply-to:date :mime-version; bh=VG/EnzWcjyS1E2OxmqiZ3g8xz/ONnjgCtm/GvWPiyR4=; b=JiHQZfg43VVYUfRyjP/5vSostOBn0LS+uaV5IxjGyi5c6JU7J++MxLOEkhp/0fuiKe TGxkV5JVjQGJxJZGpiopb2YU3jp8CCOvt8h3rNC8Q4D4EYGvTveEiAFanGwBXvDE+8oT QH1rwP4XFfTLYzoaERJnWhdTU3PqO6TSa11SiX95CRRL0/43QwRaYZ5NCaVoIR6pTLaO zPFXxjui1WchneIftHA+cTppxB8w7fnasj9Rw1FLDXlTdEZ1Y6Wq7j9mQd+ucxb6TiWX MSw3x/0CobEWrjIiFFPruxOOxm7ePMPv44jUAOX/KLaGY899uWOA+F7B/R7lanKr0EDB m4oA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id dd12-20020a1709069b8c00b007c122a58805si19694244ejc.727.2023.01.12.18.39.09; Thu, 12 Jan 2023 18:39:21 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240526AbjAMC0X (ORCPT + 50 others); Thu, 12 Jan 2023 21:26:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239906AbjAMC0R (ORCPT ); Thu, 12 Jan 2023 21:26:17 -0500 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 323AB4828F for ; Thu, 12 Jan 2023 18:26:17 -0800 (PST) Received: by mail-io1-f70.google.com with SMTP id u24-20020a6be918000000b006ed1e9ad302so12748742iof.22 for ; Thu, 12 Jan 2023 18:26:17 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=VG/EnzWcjyS1E2OxmqiZ3g8xz/ONnjgCtm/GvWPiyR4=; b=VfiIgQNZ8ukuXTCIrw91M4SDhxDE7ta8vyefBZJ7M0Wz8j5mDxqbnSw9Z4Zd4FJFXM i+6W88PoEFSDbaEQsMmQLXvqULtYpPEvwsKC7syCfrRIrLIvVfaZKXq96vWdYlyRKNF7 /l2t4oOLLtOwdLFR8lkQI8TW3RpDWBOxZxSS5/G+t3juCyNn/6OHJ6aeyXhzrcWQvDqK qwOWM8HjJVAQGthvi0tLncmw4vIDFBsEeGP0En03N7UCasDvXEG1y6xKzlh74aWtakQy oFIGIeR576mMmQrMU0BY+hc4Zx9OaDvaDk5XK0waYYHGF45NpZmoPDBKilwhTbgVJVwb r/5g== X-Gm-Message-State: AFqh2kpsjjtsNxsn3knNOpw50CrIwwQw2Ubt4G8kPaqyARCZToAt3gAq 0E9uNMNBWg9/zRNcMl+UMtC3XcVJSQwJAEz/hqPoo5snAndx MIME-Version: 1.0 X-Received: by 2002:a05:6e02:80c:b0:30d:860d:342a with SMTP id u12-20020a056e02080c00b0030d860d342amr2950134ilm.305.1673576776569; Thu, 12 Jan 2023 18:26:16 -0800 (PST) Date: Thu, 12 Jan 2023 18:26:16 -0800 In-Reply-To: <0b47feda-b3b2-02e8-36bc-f55a3e27bc35@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000045a2ae05f21bf5aa@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in io_fallback_req_func From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+bc022c162e3b001bf607@syzkaller.appspotmail.com Tested on: commit: 73f41663 Merge branch 'for-6.3/iter-ubuf' into for-next git tree: git://git.kernel.dk/linux.git for-next console output: https://syzkaller.appspot.com/x/log.txt?x=15a52c5e480000 kernel config: https://syzkaller.appspot.com/x/.config?x=2b6ecad960fc703e dashboard link: https://syzkaller.appspot.com/bug?extid=bc022c162e3b001bf607 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.