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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51376C61DA0 for ; Wed, 25 Jan 2023 09:31:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DF98B6B0072; Wed, 25 Jan 2023 04:31:17 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DA9AF6B0073; Wed, 25 Jan 2023 04:31:17 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C72586B0075; Wed, 25 Jan 2023 04:31:17 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id B663A6B0072 for ; Wed, 25 Jan 2023 04:31:17 -0500 (EST) Received: from smtpin16.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 8E6DD40BF6 for ; Wed, 25 Jan 2023 09:31:17 +0000 (UTC) X-FDA: 80392802994.16.288D1B3 Received: from mail-io1-f47.google.com (mail-io1-f47.google.com [209.85.166.47]) by imf01.hostedemail.com (Postfix) with ESMTP id D3B224000F for ; Wed, 25 Jan 2023 09:31:15 +0000 (UTC) Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=nhxuEOig; spf=pass (imf01.hostedemail.com: domain of jannh@google.com designates 209.85.166.47 as permitted sender) smtp.mailfrom=jannh@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1674639075; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=co74253xmdlMDYdyg36/gvO6JfXXpw4Mm4A134IXmAo=; b=inAQppDQZkV+L3fqltmZ0aEb7awRFsb6ubFFQDOHZyZNxjxSPoEjuvsPUrFNzBNMqdRckl HxkHSKOl4KCGc1irmHthYtS2okMbJDVOZw0JmaXMtWodrvu+xhE/T9M4441dqlvDh5LuKo kVsbwks3oeCj2xGu5RsU1FhcsH1Q5BM= ARC-Authentication-Results: i=1; imf01.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=nhxuEOig; spf=pass (imf01.hostedemail.com: domain of jannh@google.com designates 209.85.166.47 as permitted sender) smtp.mailfrom=jannh@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1674639075; a=rsa-sha256; cv=none; b=W2Yo4vRBRzmwkCMGBrC+m4+SWKeHRVwQ3kd58BWb4tgOHNLNdy8aj3mKVy6T/s6XdHNgCI WeiXmHruLvASChzcSXcCll9/7jX11BrzX1tngfcfOnvn/3yjPWbBmgMo+gqCNSPXMi7bz3 AQbEbCEEKQxQu/yNazk9qLHyGmGea3c= Received: by mail-io1-f47.google.com with SMTP id 203so8205523iou.13 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=Nkfi5bgYMlLU6MArlQtIxIvW9N/qhB1KI9JB6FV4iEznfzT0vri8jSBtC0a9dXjyy7 KkdHAXPqozKlzX5tZudEvGK5nrocdiu2F1eONf9P5paXWZsFbqOO6QT1dW1wvbFajFz0 K+orsTirPeLCJG1Y9HDwEg1S/jAVoBQEQFErwCITxc8NjdvufF3QdnQsng8dN3Wf5Nbg m6NLhN6PLkPHfr+AjwhjMTnOBB8cQi+Z7H+jTngf4LgK/HAk0F6T17w9/34TmfN3nG1Z NYZLrNASnIkxl9TDLoQcA0snE71GXz/rvQnaAZzc2RRMbFDFH5uAuTC9zdf5hnGWhUsN EoSA== X-Gm-Message-State: AFqh2kqOENPPZpodlpVyzVh3Gt3lyqzGJyW/T6J940AnT7s+b2EmSEW/ SVCAAfi9mr3mmM0+oJ83ySaopAqGlPasSzZ7IWnjRJuXtI3fokPi 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" X-Rspamd-Queue-Id: D3B224000F X-Stat-Signature: gfoy1ayhuz1wssb1cxdoguqg6cyspqf4 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1674639075-207062 X-HE-Meta: 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 zMHgo3PQ Q/tqwIwrjzUmEeickQLVhvvVwxefBz2aHADMohpZiQfdocpR5uRzLG5NrnHr+exvueAVFNvqUdhrEgWZc0jh1oFNlIV0FT5o0Ogt792n2ZZ99JknF14H5qBkYMwZOLwhx17tnqdYp/jgxJZ/z6C7HAeGRPc1VEv60cs4tstqQRMX6/GYQqrMzDaUKy78xYNFyAPO2O4dGgrRF6ic1+aLmKfIWxUNCJcthDDNyBbgXrOewyW5H4FFEnPq/0NHZCWDBzbdGIRdsgwFsUZD9gEkmXqQzdhqzVVNF2zHKYLLQB2BDyPbPh+DVNmY40/MZV/KLXLnptbqOoW2XDMUJmlXx6V76tBiKrLO28IhIt/2lcM5e6kk= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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...