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 0628FC54E94 for ; Wed, 25 Jan 2023 09:31:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235315AbjAYJbf (ORCPT ); Wed, 25 Jan 2023 04:31:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235216AbjAYJbU (ORCPT ); Wed, 25 Jan 2023 04:31:20 -0500 Received: from mail-io1-xd36.google.com (mail-io1-xd36.google.com [IPv6:2607:f8b0:4864:20::d36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE486539BB for ; Wed, 25 Jan 2023 01:31:15 -0800 (PST) Received: by mail-io1-xd36.google.com with SMTP id p189so8253429iod.0 for ; Wed, 25 Jan 2023 01:31:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=co74253xmdlMDYdyg36/gvO6JfXXpw4Mm4A134IXmAo=; b=nhxuEOigLd/GCweEocmGX954i3D3IFceWuPkN85bs5ZTUHDxtTje6ljBp5xEqfFdJn MIoJYivQpf/fzjzX3gDWT+q5jFRKgRKuD+p3c/Q++p7fRaSS/+6MBOIZRLUfeDi1QzFz TyCGogN1j1ZakmiG8EWpobckqCz2FtL7k9lQb3qXZb9rxPxvDlyEKRAgsfdfuBtIj3P6 4mWboxmhzJUvGCJFBWUXvrVQHtpvUoAg+UD39CMVsUprq64kjiJIXrrKt37Izlb1p4Zt EO/xHCtqK1yvUKgpJar4gjYjlxlCDppZNPDsjF/HEvnq+CBKuwkjY96jXtiBdhrN6uAz 0KCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=co74253xmdlMDYdyg36/gvO6JfXXpw4Mm4A134IXmAo=; b=EiylppQmJ1KUxL6Q05o612d6neGw+p2fq375CfAzlx6LtcuZuDKgYHLonfakLFKbAk P9S4S7uDcYhZ/1D/mnj1stJqd/UgNHwEwA6RVPIYxF0jIubu5FwpnVTQJGKOMpkzkJ68 0bpfNWwmy+sGg5+m73eF1Vc9JA25L5QOR/h91fKdd3vBU+yswTIvBRfeg06KXoaz8yQc aNCUvY/E0EccIRbR/Iw5Q2lpio/e5AjgbW5lw4I0sDs29grY89fiaj8WPw5I/TBgNI6I PLYtOehLLQTbqsQ/GErMM+/miH7DJO+hVV9a3/9mq2SR3QWw+zOt5FO+er/pfOC+UVc4 RY5A== X-Gm-Message-State: AFqh2kqBMQLzjIiD1tKF3jDnoarsA5YoVPX6AWQ4cH9z+ZIP0Ljg21t6 l760bBCqbcO1/LLFeGD1+sxsLHwcl8wWb77dwFXnIw== X-Google-Smtp-Source: AMrXdXukFQe/JANN75/MG/lnGxSmW7i84xDb8nbRxxfUo02+dA1IrQrfqP6mBI2dhE4d8toK9encfqNEyl9fnb04rbw= X-Received: by 2002:a02:2a4b:0:b0:38c:886a:219a with SMTP id w72-20020a022a4b000000b0038c886a219amr4163715jaw.133.1674639074852; Wed, 25 Jan 2023 01:31:14 -0800 (PST) MIME-Version: 1.0 References: <20230117163543.1049025-1-jannh@google.com> In-Reply-To: From: Jann Horn Date: Wed, 25 Jan 2023 10:30:38 +0100 Message-ID: Subject: Re: [PATCH] fork, vmalloc: KASAN-poison backing pages of vmapped stacks To: Dmitry Vyukov Cc: Andrew Morton , linux-mm@kvack.org, Uladzislau Rezki , Christoph Hellwig , Andy Lutomirski , linux-kernel@vger.kernel.org, Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Vincenzo Frascino , kasan-dev@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 25, 2023 at 10:27 AM Jann Horn wrote: > Oooh, actually, there is some CIFS code that does vmalloc_to_page() > and talks about stack memory... I'll report that over on the other > thread re CIFS weirdness. Ah, no, nevermind. The corruptions were in ntfs3, not cifs...