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 X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27348C433E0 for ; Tue, 22 Dec 2020 20:00:15 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7B22520867 for ; Tue, 22 Dec 2020 20:00:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B22520867 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 0A6996B0096; Tue, 22 Dec 2020 15:00:14 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 007DC6B0098; Tue, 22 Dec 2020 15:00:13 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DC3DB6B0099; Tue, 22 Dec 2020 15:00:13 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0040.hostedemail.com [216.40.44.40]) by kanga.kvack.org (Postfix) with ESMTP id BE9BE6B0096 for ; Tue, 22 Dec 2020 15:00:13 -0500 (EST) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 848AB1F08 for ; Tue, 22 Dec 2020 20:00:13 +0000 (UTC) X-FDA: 77621984706.16.lip20_40028a227462 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin16.hostedemail.com (Postfix) with ESMTP id 56703100E6903 for ; Tue, 22 Dec 2020 20:00:13 +0000 (UTC) X-HE-Tag: lip20_40028a227462 X-Filterd-Recvd-Size: 2941 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf05.hostedemail.com (Postfix) with ESMTP for ; Tue, 22 Dec 2020 20:00:12 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 3545220705; Tue, 22 Dec 2020 20:00:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608667211; bh=iEJgPSTIOZrOrqUbae8/LF4D4oibSp4dMwOwMLPsWWM=; h=Date:From:To:Subject:In-Reply-To:From; b=ye1GRVt20qp6D4DEQRibjAvuLEY/46Eh8rix2K8/qzXjlDthqRiF9A6+JgeQ7GeGH sWb8Vb9gNHDvEZXT8jnh8IS/3NkaDQdX4tJ0itXcKh+zKZIrU0L/D1iGU+CMRtbvim Q5Wzy/yBCRiNxBa6aEKk71ULbVkRrf81p0HtvF5c= Date: Tue, 22 Dec 2020 12:00:10 -0800 From: Andrew Morton To: akpm@linux-foundation.org, andreyknvl@google.com, aryabinin@virtuozzo.com, Branislav.Rankov@arm.com, catalin.marinas@arm.com, dvyukov@google.com, elver@google.com, eugenis@google.com, glider@google.com, gor@linux.ibm.com, kevin.brodsky@arm.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, vincenzo.frascino@arm.com, will.deacon@arm.com Subject: [patch 02/60] kasan: KASAN_VMALLOC depends on KASAN_GENERIC Message-ID: <20201222200010.DCyKVfsxL%akpm@linux-foundation.org> In-Reply-To: <20201222115844.d30aaef7df6f5b120d3e0c3d@linux-foundation.org> User-Agent: s-nail v14.8.16 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: From: Andrey Konovalov Subject: kasan: KASAN_VMALLOC depends on KASAN_GENERIC Currently only generic KASAN mode supports vmalloc, reflect that in the config. Link: https://lkml.kernel.org/r/0c493d3a065ad95b04313d00244e884a7e2498ff.1606161801.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov Signed-off-by: Vincenzo Frascino Reviewed-by: Marco Elver Reviewed-by: Alexander Potapenko Tested-by: Vincenzo Frascino Cc: Andrey Ryabinin Cc: Branislav Rankov Cc: Catalin Marinas Cc: Dmitry Vyukov Cc: Evgenii Stepanov Cc: Kevin Brodsky Cc: Vasily Gorbik Cc: Will Deacon Signed-off-by: Andrew Morton --- lib/Kconfig.kasan | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/Kconfig.kasan~kasan-kasan_vmalloc-depends-on-kasan_generic +++ a/lib/Kconfig.kasan @@ -146,7 +146,7 @@ config KASAN_SW_TAGS_IDENTIFY config KASAN_VMALLOC bool "Back mappings in vmalloc space with real shadow memory" - depends on HAVE_ARCH_KASAN_VMALLOC + depends on KASAN_GENERIC && HAVE_ARCH_KASAN_VMALLOC help By default, the shadow region for vmalloc space is the read-only zero page. This means that KASAN cannot detect errors involving _