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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 35AC7C433F5 for ; Fri, 29 Oct 2021 20:53:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 11A0A61040 for ; Fri, 29 Oct 2021 20:53:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231420AbhJ2Uzk (ORCPT ); Fri, 29 Oct 2021 16:55:40 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:35609 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229897AbhJ2Uzj (ORCPT ); Fri, 29 Oct 2021 16:55:39 -0400 Received: by mail-io1-f70.google.com with SMTP id g24-20020a056602249800b005db75d2a291so7595407ioe.2 for ; Fri, 29 Oct 2021 13:53:10 -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=mZR1Ffgh9GUeY1nvfeVVdOqzzFuN2C/+L0bUpcqSOr4=; b=bdF5ZpNcKU45UTC9wUcEymRqp+WLPE+8XWD1ki1AQmCZ99W87TWnIhmqK3vMuE71ZA G0PGytPLd6wFgq2kM2Yp+KtPafvpCPiFTIUy/SJjNS6yNM0dJ8fvpJX4Yn/haeF0fCRe EkaGEic66sfGNcfi1k6B6O59bAg9PqCOnXgL/uh8bhg3KGcYQhrj8t7RkzMdurRacW/v M/yUZ9ZmCakVP2Iv1ylOPjTwh9ygLovd3t+LHgCxDYUdb1oTDqFlJ7lf5DoFT1qUfeaW HghI7sGR9R0J2fp3b5XodHfPS+FrLxtlFx7dJei0sI8YSpYyIO5mJOvQqPvdRSmngf+j 026Q== X-Gm-Message-State: AOAM530xsE75rEiVG1jNq8xOgUsDryjOVL9oNRObeeGcPhGwpAjYs7nR 4k9scIIhkzqG2lE8RVeiAD25SWGWYjqR65VMLqRY23MkMHSy X-Google-Smtp-Source: ABdhPJyg7+CkIZhRFcuuSE69HNyMf6UDU7ZvRRKf1co95w/1Krr48Gg72H+2mTFxBZR0Aql8UGNCzvAEgwqDLIoCoGWEBKHdw9ya MIME-Version: 1.0 X-Received: by 2002:a5d:80d6:: with SMTP id h22mr9940649ior.152.1635540790308; Fri, 29 Oct 2021 13:53:10 -0700 (PDT) Date: Fri, 29 Oct 2021 13:53:10 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d2737805cf8403c9@google.com> Subject: Re: [syzbot] KASAN: use-after-free Write in __io_free_req 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+78b76ebc91042904f34e@syzkaller.appspotmail.com Tested on: commit: 1d5f5ea7 io-wq: remove worker to owner tw dependency git tree: git://git.kernel.dk/linux-block for-5.16/io_uring kernel config: https://syzkaller.appspot.com/x/.config?x=10c050a45aafafcc dashboard link: https://syzkaller.appspot.com/bug?extid=78b76ebc91042904f34e compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: testing is done by a robot and is best-effort only.