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 5DB57C433F5 for ; Fri, 10 Dec 2021 16:15:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240338AbhLJQSp (ORCPT ); Fri, 10 Dec 2021 11:18:45 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:35390 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240274AbhLJQSo (ORCPT ); Fri, 10 Dec 2021 11:18:44 -0500 Received: by mail-il1-f198.google.com with SMTP id m9-20020a056e021c2900b002a1d679b412so10859848ilh.2 for ; Fri, 10 Dec 2021 08:15:09 -0800 (PST) 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=hCvnT54V6dz5hU6SrRLw5pSFpj+AS8Nd4KGYLHFcp0Y=; b=22Qe79zp6VJwI5Nzwk097CwX6UgFKt+u9ouywW084n58wRA3Y8FiqQAs5W/whZDK+5 qRKvs+7SYtKu0biRkPZW0ffroe7hD+UGQAs4GqxS2FHbE9Ynk0t4AIL3hZxNu+LMVGRW ynI6FlaLZ/HKUfNY289dWRwygxbTsyq3mdYFjSPWt6103aSz5uRJXD5A+BwwOc4wJey2 3kMwNYa5+BCUCVSe5asJkMhU+ejCKcB7AqnQWna9zLm2hKSJX/OTAT5jwZJQh3yX5gEh ZsNor+kRxuObGJN2OxpSKstMiDMbdLw7zFHgx/sY3SX1IArEexNxQo6FKrhv+kvRx20W F+aw== X-Gm-Message-State: AOAM5304Cwkath7LwTWAmYFWD2ajg9zt10IVIpSvN/ruylhii5wEveaZ 9K3nUuHjqKH0k4zGjAV6V7glntgNq7XGwX8YIsjPei3llFxe X-Google-Smtp-Source: ABdhPJy0+1Kzubb2wOyqTwA+WeSKW/Ony0nSbvBW6B2pEY/r1R4dlA0k9FeachkuKy5dZIjLG6abPYZiWcQpTE+gWzMTJVMs9Ewh MIME-Version: 1.0 X-Received: by 2002:a92:d28d:: with SMTP id p13mr24204351ilp.163.1639152908858; Fri, 10 Dec 2021 08:15:08 -0800 (PST) Date: Fri, 10 Dec 2021 08:15:08 -0800 In-Reply-To: <8544854b-226d-befd-bd91-5af182c2b03d@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000dd7d7e05d2cd063a@google.com> Subject: Re: [syzbot] KASAN: use-after-free Write in io_queue_worker_create 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" 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+b60c982cb0efc5e05a47@syzkaller.appspotmail.com Tested on: commit: 263568d1 io-wq: check for wq exit after adding new wor.. git tree: git://git.kernel.dk/linux-block io_uring-5.16 kernel config: https://syzkaller.appspot.com/x/.config?x=6c3ab72998e7f1a4 dashboard link: https://syzkaller.appspot.com/bug?extid=b60c982cb0efc5e05a47 compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2 Note: testing is done by a robot and is best-effort only.