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 7B181C433F5 for ; Fri, 25 Mar 2022 05:47:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347591AbiCYFtZ (ORCPT ); Fri, 25 Mar 2022 01:49:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52058 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229728AbiCYFtW (ORCPT ); Fri, 25 Mar 2022 01:49:22 -0400 Received: from mail-ej1-x62f.google.com (mail-ej1-x62f.google.com [IPv6:2a00:1450:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2350945AE1 for ; Thu, 24 Mar 2022 22:47:48 -0700 (PDT) Received: by mail-ej1-x62f.google.com with SMTP id d10so13258723eje.10 for ; Thu, 24 Mar 2022 22:47:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=IIPeA1tJ94PqcWykm/GxEY5BfbD3GfcvNIJHv095RpQ=; b=j0bY711FKZqCakCCSWGLGkVheKqIiAX6WINZPGcs+KRdcIxp5dWWmJO4ffmYF8TGOr zd9BUxGqBVzCyb8b8XGvV9OH6ft/yoJBtCcm9/hNV5w1MCfwrC9mnx3Gi6cqC/02PvSQ M8DQIkAHvNzVZh1W5d91/S+jdW/1AxBGdtQiOthv8Q4WH7z7Tr9S+jbCR0khFZ2mUdJa bgtrUCX95g+RTe3Gq7rfcEoyapmcrGNOK3I36RkvPZ7XMygbXNeII8xf+s3BpL2o/8R2 KFXbfOcrPHgHt9ZxBNopEifvdzCQLk8QJIjiI3yWyhKXWjsLNAUxzi0FYdMz7krvxYbO nFLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=IIPeA1tJ94PqcWykm/GxEY5BfbD3GfcvNIJHv095RpQ=; b=aUgYR6rLZAEswfaVD+M0svK6jUR+RIksb1pH11m1FXfcqnXFDLwm0rQ375dKuQSAuh F5TyCo5nAVSGkdswMCyPUQkOXoNwalEJlx77LMgpTkgzo6w0TH3DK+zqR2dl6MddHNfy a53/dfi3VOp/EIbqbJIRjbkpUmBJsJXMIuWD8p83iJJnnMk0OZ5+N3eZn8JEPdH+bY3E PFLcBjotpNytyY7O2J1mRLF3AicSlP6DrfVJOnEm+eP3Zr7VUS1A2+jvuL1Ynpe2BYwe pKVw6h8Hw4S71XcIgIV+/lbMc5/PqnbN2NtTmulJ7IQ7e5REcYuv6QQbeI7GVisvLekf r2ug== X-Gm-Message-State: AOAM533Bbcl4wdKeF+j8rLHXLcgWP38PJDlqbW837nPdy7YfUWGS0Hqx uoQxvpoErMWn7b3ov6cDz+4= X-Google-Smtp-Source: ABdhPJx4Ba2xIS7ulrMXW6sy92xpxbFeL5dV3cRPBoXWezFmRRz284NFzWoFbBd93nf5ZHg6EQCiUg== X-Received: by 2002:a17:906:5006:b0:6ce:3762:c72e with SMTP id s6-20020a170906500600b006ce3762c72emr9593631ejj.30.1648187266483; Thu, 24 Mar 2022 22:47:46 -0700 (PDT) Received: from leap.localnet (host-95-249-145-232.retail.telecomitalia.it. [95.249.145.232]) by smtp.gmail.com with ESMTPSA id h12-20020a1709060f4c00b006b4ec988cc3sm1886020ejj.4.2022.03.24.22.47.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Mar 2022 22:47:45 -0700 (PDT) From: "Fabio M. De Francesco" To: syzbot , syzkaller-bugs@googlegroups.com, Muchun Song , Linus Torvalds Cc: Andrew Morton , Dmitry Vyukov , Linux Kernel Mailing List , Linux-MM , syzkaller-bugs Subject: Re: [syzbot] general protection fault in list_lru_add Date: Fri, 25 Mar 2022 06:47:36 +0100 Message-ID: <12984828.uLZWGnKmhe@leap> In-Reply-To: References: <0000000000009901d505dafc07b3@google.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On gioved=C3=AC 24 marzo 2022 20:45:00 CET Linus Torvalds wrote: > On Thu, Mar 24, 2022 at 12:41 PM syzbot > wrote: > > > > syzbot has tested the proposed patch and the reproducer did not trigger= any issue: >=20 > Heh, well that's unfortunate. >=20 > I think the issue is that it triggered a new BUG() that didn't match > the previous NULL pointer dereference, so it thinks things are > "fixed". >=20 > Linus >=20 > --=20 > You received this message because you are subscribed to the Google Groups= "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an= email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgi= d/syzkaller-bugs/CAHk-%3DwhxaFX4nqnE-SLHTGKyqejvbrhYx5sagcxWd%2BUWCMf8dg%40= mail.gmail.com. >=20 No, not at all, Linus! Unless I'm still sleeping with wide open eyes (it's 6.30 AM here), you are = misunderstanding=20 this message from Syzbot :) This message means that Syzbot has applied and tested the patch and now is = not=20 anymore able to trigger any bug. In summation it means that the patch works= properly. Now Muchun should simply submit his patch (the usual way) with a "Fixes:" t= ag=20 and with "Reported-and-tested-by: syzbot+f8c45ccc7d5d45fc5965@syzkaller.app= spotmail.com". Thanks, =46abio M. De Francesco