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=-18.8 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_BLOCKED, USER_AGENT_GIT 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 6D3E6C433DB for ; Mon, 25 Jan 2021 18:47:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 332EC2075B for ; Mon, 25 Jan 2021 18:47:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726840AbhAYSrg (ORCPT ); Mon, 25 Jan 2021 13:47:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:58344 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728277AbhAYSnU (ORCPT ); Mon, 25 Jan 2021 13:43:20 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id B0C03207B3; Mon, 25 Jan 2021 18:42:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1611600150; bh=2g7jRJwckN2NI1Fy2SCiUY24zKA5YSEGWbyG6YyKTXs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CJJMv4oFOkLBo/NaeX8lQm1ZXMikWl8Djd1sPjfSJcrSwAL8RUC2t4Tm9l/NFTh1F 8f6w69d/50C+3h7bTA+YWSsLkhCYI1Wk/c2w6GhCTBVN3Vru33nFtRoDnNnrgUhhoi 5OXns7pyynlONuY0z6btr2RpbZMoYZbXKc3LOzLc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lecopzer Chen , Andrey Konovalov , Andrey Ryabinin , Dan Williams , Dmitry Vyukov , Alexander Potapenko , Andrew Morton , Linus Torvalds Subject: [PATCH 4.19 50/58] kasan: fix incorrect arguments passing in kasan_add_zero_shadow Date: Mon, 25 Jan 2021 19:39:51 +0100 Message-Id: <20210125183158.857168202@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210125183156.702907356@linuxfoundation.org> References: <20210125183156.702907356@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lecopzer Chen commit 5dabd1712cd056814f9ab15f1d68157ceb04e741 upstream. 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 Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/kasan/kasan_init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/kasan/kasan_init.c +++ b/mm/kasan/kasan_init.c @@ -487,7 +487,6 @@ int kasan_add_zero_shadow(void *start, u ret = kasan_populate_zero_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; }