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[2620:137:e000::1:20]) by mx.google.com with ESMTP id g8-20020a170902d5c800b00153b2d165d3si16571201plh.475.2022.03.23.08.28.34; Wed, 23 Mar 2022 08:28:50 -0700 (PDT) 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 S235319AbiCVVQj (ORCPT + 99 others); Tue, 22 Mar 2022 17:16:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37480 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235311AbiCVVQi (ORCPT ); Tue, 22 Mar 2022 17:16:38 -0400 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 91487396A4 for ; Tue, 22 Mar 2022 14:15:09 -0700 (PDT) Received: by mail-il1-f200.google.com with SMTP id s4-20020a92c5c4000000b002c7884b8608so9852566ilt.21 for ; Tue, 22 Mar 2022 14:15:09 -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=MG5Y8xILdnFlJljeDRhJEgQB6FlTo+9PoQNjAE5QtFg=; b=FwOT5qzDZ8y36L/Zwnw6h+DEvc1q8OPSWlHYCVJAvNzBkmc9GB/4QwG+nkxIgOcENw EH/de6zHaO/T8ygmzpU3W7vn0J3vExZfgN2rfrzI0wQJlZOEVRsNATgRnnskXjA3oFUl hbNEwvmYrCAAEjONEUrH9Isd3WrHt3cil7BgTYDYgddr2Ws9F5joaHFvGJS+HkoQsvum /F38r7d6/f6WA0iOumR8TEDDtIeD84qYbT2Xj4bzNMqU6Pw1Uk5rntvLDDY2zWYAaa2w oAG5RhrgWDoPZ8j+cvSJDWTqmxp2Mynqx7iA6b+I5hjUw59gN4iKKM0qUU0Fwm7GIi1o 7bGA== X-Gm-Message-State: AOAM530YJixziYRPrbAq6eKi0qJM1fcowyVbZ5xnJXhDV8KhAMBz1GGy 0hkcyxXP6jFIfQn/DSwVya94L104c74gPDJPDL2grpkvE35w MIME-Version: 1.0 X-Received: by 2002:a05:6602:2f04:b0:648:cfb5:974a with SMTP id q4-20020a0566022f0400b00648cfb5974amr13360299iow.187.1647983709020; Tue, 22 Mar 2022 14:15:09 -0700 (PDT) Date: Tue, 22 Mar 2022 14:15:09 -0700 In-Reply-To: <5cd8d8f7-b172-12a1-5c4f-f9933b576208@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000092671e05dad51b08@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in add_wait_queue 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=-1.7 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,T_SCC_BODY_TEXT_LINE 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+950cee6d91e62329be2c@syzkaller.appspotmail.com Tested on: commit: 7d58de1a io_uring: don't recycle provided buffer if pu.. git tree: git://git.kernel.dk/linux-block for-5.18/io_uring kernel config: https://syzkaller.appspot.com/x/.config?x=3172c0bf8614827 dashboard link: https://syzkaller.appspot.com/bug?extid=950cee6d91e62329be2c 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.