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 14E8EC433EF for ; Fri, 29 Oct 2021 21:11:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E2BFD60FE3 for ; Fri, 29 Oct 2021 21:11:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231575AbhJ2VNi (ORCPT ); Fri, 29 Oct 2021 17:13:38 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:54063 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231562AbhJ2VNh (ORCPT ); Fri, 29 Oct 2021 17:13:37 -0400 Received: by mail-il1-f200.google.com with SMTP id x4-20020a923004000000b00258f6abf8feso6775653ile.20 for ; Fri, 29 Oct 2021 14:11:08 -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=Ube9YO8E2J4s/t6BEWtg7056+gSWcIyQPYfWxy9j/A0=; b=dw605/FIXaQqVHYazCffdeYLFJ9Vzsff4tGNNgO37LpTbpBaAH/LueEJMyR4oaOnr7 RJk/gnprHxDxmtywA5rdZGgqYihBOV1q4gYlqT9gAvgE2bb3Tx57QlCSfIkYSIQapVh3 N8h3q1IFJZf7HDEAHfgncr37BE1C7iwYVj1Xqg9jYUc5eJCZecOIb3SfaP5PnGxMfPyd q8J0fHIj/bMoyeIWrs+vvwv/CmxeBxwOSFl8EGau9TLaDAyH7fwuSij1dUBdT/7/JkbC R6I1R9C6GsP4Wue3Htcr/vm29g7t//nldAG6tM6j+tJXZpKPaKbFTTvox/jw3bVQ90Uh nRIw== X-Gm-Message-State: AOAM53362X8DFNPlN6nzpcVm9As3f9Oc/mXNpvkrLiBKvX7yTVD2uF+X BqWXIl7oeffqPYFJxN78RCzHHKL6oIgv1gv0/WrVseLxnD69 X-Google-Smtp-Source: ABdhPJzYnHs5ysePpw2kpjuQ4CgUKGe8Lhp2JQEBePrLF4wBTKVogqzTk584XPQJPbDBEcOc+CmhU/b89d3Ik/4MKxTheoJJ/hXf MIME-Version: 1.0 X-Received: by 2002:a05:6602:1214:: with SMTP id y20mr7561508iot.156.1635541868350; Fri, 29 Oct 2021 14:11:08 -0700 (PDT) Date: Fri, 29 Oct 2021 14:11:08 -0700 In-Reply-To: <949780a1-8768-830f-ff89-f6092037cb58@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000014107b05cf844445@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: io-uring@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: 3884b83d io_uring: don't assign write hint in the read.. git tree: git://git.kernel.dk/linux-block 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.