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[2620:137:e000::1:20]) by mx.google.com with ESMTP id z17-20020a17090674d100b006dfccd1cb8dsi14492751ejl.799.2022.03.24.05.44.31; Thu, 24 Mar 2022 05:44:56 -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 S240971AbiCWAtj (ORCPT + 99 others); Tue, 22 Mar 2022 20:49:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39410 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231236AbiCWAtg (ORCPT ); Tue, 22 Mar 2022 20:49:36 -0400 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7B641EEE3 for ; Tue, 22 Mar 2022 17:48:07 -0700 (PDT) Received: by mail-io1-f71.google.com with SMTP id f5-20020a6be805000000b00649b9faf257so12550ioh.9 for ; Tue, 22 Mar 2022 17:48:07 -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=p477F3aHpIM07oAWFsxc0TWa3tvg5MHvy2eKkKNdoHiJqeNBm6Wc/4+SXFa4jPQvXQ 1szyRJIGQKE0v2nztp5hMUE86LPzjayOeD6nBYmdiYqMqRTCBvlEeXVn9W3vS8VFaxq2 4gNNSPYA7ojExSd2C2uLOALY5jQVF/cHtlGZ9kxcUzO/ITaJTqcdLPDavYcsF7Zydl4q HVqoYDDX5D89QqgWhKnb8YpFJ8DJhlxPDWvNbTQfWWxbOnlyGvQytgp93u/gv071s5IN f9S7iZwc7QEZMkv+osvRxyQHxBU2uosVO6u79BwOB5XqrOj9osSXFJ0OZ4AAYWFjRxy4 6PlA== X-Gm-Message-State: AOAM532SYOZRylFKdZAdm0VggiXdsnxzQZY9ipnJ6m4soi8/3s06qSNv 4CnXuDsPqHj4FEjxMwH7C4FIRl/PVtPuxolESLNPrNQIJKqG MIME-Version: 1.0 X-Received: by 2002:a05:6638:22e:b0:321:675d:aa77 with SMTP id f14-20020a056638022e00b00321675daa77mr1273076jaq.152.1647996487309; Tue, 22 Mar 2022 17:48:07 -0700 (PDT) Date: Tue, 22 Mar 2022 17:48:07 -0700 In-Reply-To: <8bcf2234-983e-171f-90dd-ff0c07412b46@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000379f1d05dad8157a@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in add_wait_queue From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, gregkh@linuxfoundation.org, io-uring@vger.kernel.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SORTED_RECIPS,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.