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 24670EE4993 for ; Sun, 20 Aug 2023 08:26:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230083AbjHTI0T (ORCPT ); Sun, 20 Aug 2023 04:26:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43262 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230144AbjHTI0Q (ORCPT ); Sun, 20 Aug 2023 04:26:16 -0400 Received: from mail-pf1-f198.google.com (mail-pf1-f198.google.com [209.85.210.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7EBD5448C for ; Sun, 20 Aug 2023 01:24:24 -0700 (PDT) Received: by mail-pf1-f198.google.com with SMTP id d2e1a72fcca58-68a4025bb30so187014b3a.3 for ; Sun, 20 Aug 2023 01:24:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692519863; x=1693124663; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=eUalpL+5Gi7lf4XJx93fopaSHZM9ZNT+DieLwJD0p4s=; b=dQf88KxeuuxMe6m56OQyDFY0n0xHHrAQvwzy0CHBBwaR+2Rxsmp39XxlRuFNm2UolB v8GuZUkU5tCHDkk9LVUV5rFKOWFfDx7eKJSyrISyAe7m6YM4GVHZlJiAdUwbjzHdAYqh 3L6Z8eDy8CPwZbvP5qPwW4PSMh9sAuHdN/9EPoZeEJkAlf083nUtkwb0h2d2VxPrX5ws jqwqi6Nl+bM35U3jNOreWr8qXnXHgN3vSD9h9wpFE3mKmhVtDc7X35p7Qng9p4LLefab yNygTTRTrHUYbG9uruu5gHXuTfqa9MGA2CX1OSKT0fQIC50yMzLhngRvj+7zDtk/PJej /RFg== X-Gm-Message-State: AOJu0YzQd+mXDmmWs/bVcHX6zrQoVBxjuuStNm/2FChlBnlWc8bTvr6l jfGRyR2gO4D2vWorrZBfrsMGBYbg5I2XhXWFZulNEAxG/fvg X-Google-Smtp-Source: AGHT+IGg1EOuskTWqZbF2bfnbP5Y87prUDdSkdSIu+bVOlVgOtenVJAJW14yVxcre5N5i80uRFvtcB6EvEKB8g1TgK0qiTjnc/X4 MIME-Version: 1.0 X-Received: by 2002:a05:6a00:13a4:b0:687:31c0:782f with SMTP id t36-20020a056a0013a400b0068731c0782fmr2368999pfg.6.1692519863718; Sun, 20 Aug 2023 01:24:23 -0700 (PDT) Date: Sun, 20 Aug 2023 01:24:23 -0700 In-Reply-To: <0000000000002d884205ffc75b9a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000040996a0603567d52@google.com> Subject: Re: [syzbot] [mm?] KASAN: slab-out-of-bounds Read in mt_validate_nulls From: syzbot To: akpm@linux-foundation.org, ghandatmanas@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, syzkaller@googlegroups.com, torvalds@linux-foundation.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit ae80b404198434e49e903dc3b1ba83e2c7bb3ee2 Author: Linus Torvalds Date: Mon Jul 3 17:08:50 2023 +0000 mm: validate the mm before dropping the mmap lock bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17b0da65a80000 start commit: a901a3568fd2 Merge tag 'iomap-6.5-merge-1' of git://git.ke.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=7406f415f386e786 dashboard link: https://syzkaller.appspot.com/bug?extid=609e63261638ff3d5436 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10342968a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d4cf70a80000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: mm: validate the mm before dropping the mmap lock For information about bisection process see: https://goo.gl/tpsmEJ#bisection