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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EF65C433EF for ; Sun, 24 Jul 2022 07:30:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235555AbiGXHaj (ORCPT ); Sun, 24 Jul 2022 03:30:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231394AbiGXHai (ORCPT ); Sun, 24 Jul 2022 03:30:38 -0400 Received: from mail-ej1-x62d.google.com (mail-ej1-x62d.google.com [IPv6:2a00:1450:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 636595FCF; Sun, 24 Jul 2022 00:30:37 -0700 (PDT) Received: by mail-ej1-x62d.google.com with SMTP id oy13so15295170ejb.1; Sun, 24 Jul 2022 00:30:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=psNAByhtc2S44J/noRtkFecmnWVyvGB3SDGwFE67vsQ=; b=Z510fyBCVtjWxSJD6jmBVEpRe2Fr2/elQgNDkz+nU+0/N8jqcEMWvUoj66jbfxF/cR ULowIG6FoXgwoCDTaEChTVZAWM6VsZ6v8btEw/6Tn6CzMCTMGP0C71IPPZn+78PJDnV5 sS9INQ0ZJhM9HbUJQUkup7RKLpXgEcdC5f1siPAh4NauBYBcAe+dqX7hR2y5EXxyyrcT 7RfwhSZvHt/cspQNOgUPv6JPgXHWGBi4ZEg2jlA1tDYtMkl8z7TljG2oiWU7+TX4B9mc DAvFgIbK9XM84JVxOppA5bENtL6pcrMET/OrtRxif3Tvd+6vtHC0BxP5UZmHvcwnIbBn vllQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=psNAByhtc2S44J/noRtkFecmnWVyvGB3SDGwFE67vsQ=; b=50RO5LjLKrNHefHBqhBuJ7UO04T3FHFiI9D95t+mI9mFEfPXrNojaV9ezYbgF2ZLFP AG0J60IJrRjyLcLZwn6ioHPHdFiaYykb9eKT6UunlWIdFBxpfcteCumEotfl8d4rQSAt oN4sSZv7BC7Ip7K+P/QT1CB4aRQXwp8HDLBEscm7EO3W5GunB3sRECvKYCrNp5oGvosj iReTUzD0WhqrgEpKVxfrPelhR0ndl5ZYs43kTya/PDx64WBfRFlMCd9kFkX5C36w+9a1 EVcDUdqQt56JfVn7AKPY3EDVTzNDlNOAX3XTK55yaerBaIe1qN0ChNpsE7Lr6cSrJwa8 vemw== X-Gm-Message-State: AJIora8Nn11dq01IDNCwy+8hZFpCE6Qcu3gWofsVZDaytosqxHCDzyrU v/yQ7iFcQHjKVS5Um+4yzwPfaFWavhV6ls1oCSw= X-Google-Smtp-Source: AGRyM1vyN8JtIYBly0jo2YxBwqNLU4+SETUkvVfO8uZcRyyW5iXrUwzRVWgmHazX181bWGOTjHdmVnQq+nDiZWDclXM= X-Received: by 2002:a17:907:7f1c:b0:72b:6e63:1798 with SMTP id qf28-20020a1709077f1c00b0072b6e631798mr5593276ejc.538.1658647835931; Sun, 24 Jul 2022 00:30:35 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Dipanjan Das Date: Sun, 24 Jul 2022 00:30:24 -0700 Message-ID: Subject: Re: KASAN: use-after-free Read in __io_remove_buffers To: Dylan Yudaken Cc: "io-uring@vger.kernel.org" , "axboe@kernel.dk" , "linux-kernel@vger.kernel.org" , "asml.silence@gmail.com" , "fleischermarius@googlemail.com" , "syzkaller@googlegroups.com" , "its.priyanka.bose@gmail.com" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Thu, Jul 21, 2022 at 4:06 AM Dylan Yudaken wrote: > > On Wed, 2022-07-20 at 18:41 -0700, Dipanjan Das wrote: > > Hi, > > > > We would like to report the following bug which has been found by our > > modified version of syzkaller. > > Hi, > > Both of the bug reports you sent seem to be fixed by the patch I just > sent. > > This one however does not seem to terminate once fixed. Is there an > expected run time? Sorry for the late reply. We have just started looking into it, and will get back on this shortly. > > Thanks! -- Thanks and Regards, Dipanjan