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,URIBL_RED autolearn=unavailable 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 A2C80C433DB for ; Sun, 24 Jan 2021 05:02:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 74B3022CB9 for ; Sun, 24 Jan 2021 05:02:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726038AbhAXFC2 (ORCPT ); Sun, 24 Jan 2021 00:02:28 -0500 Received: from mail.kernel.org ([198.145.29.99]:47222 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726056AbhAXFC1 (ORCPT ); Sun, 24 Jan 2021 00:02:27 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6EEB722D0A; Sun, 24 Jan 2021 05:01:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1611464491; bh=8sisABn7gSo+xcEawYIqH20q74qHvkB3s8ArZTq5WK0=; h=Date:From:To:Subject:In-Reply-To:From; b=Lo+HRAQfPyZCP6N/UuQy1TVi4hEkT2+G8Eb15MzACv80agOd1PhGRDSb4BpLfw2ZI 2FI7Qw/Vzjn/6wn5qFvTqCuWRAtrZf1ytcBNvgHYMtZtbmRNP4VKJH00tOREEQdpHb 36O393w43s7H4a+Y2D33HXTPHx6bYS4cfYGYIdFE= Date: Sat, 23 Jan 2021 21:01:29 -0800 From: Andrew Morton To: akpm@linux-foundation.org, andreyknvl@google.com, aryabinin@virtuozzo.com, dan.j.williams@intel.com, dvyukov@google.com, glider@google.com, lecopzer.chen@mediatek.com, lecopzer@gmail.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 08/19] kasan: fix incorrect arguments passing in kasan_add_zero_shadow Message-ID: <20210124050129.QK6ho8-jT%akpm@linux-foundation.org> In-Reply-To: <20210123210029.a7c704d0cab204683e41ad10@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Lecopzer Chen Subject: kasan: fix incorrect arguments passing in kasan_add_zero_shadow kasan_remove_zero_shadow() shall use original virtual address, start and size, instead of shadow address. Link: https://lkml.kernel.org/r/20210103063847.5963-1-lecopzer@gmail.com Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN") Signed-off-by: Lecopzer Chen Reviewed-by: Andrey Konovalov Cc: Andrey Ryabinin Cc: Dan Williams Cc: Dmitry Vyukov Cc: Alexander Potapenko Signed-off-by: Andrew Morton --- mm/kasan/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/kasan/init.c~kasan-fix-incorrect-arguments-passing-in-kasan_add_zero_shadow +++ a/mm/kasan/init.c @@ -486,7 +486,6 @@ int kasan_add_zero_shadow(void *start, u ret = kasan_populate_early_shadow(shadow_start, shadow_end); if (ret) - kasan_remove_zero_shadow(shadow_start, - size >> KASAN_SHADOW_SCALE_SHIFT); + kasan_remove_zero_shadow(start, size); return ret; } _