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=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 D79E4C433EB for ; Mon, 27 Jul 2020 14:19:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE1AA2070A for ; Mon, 27 Jul 2020 14:19:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595859591; bh=FrXkJIjIfPxFCaet73fYO+GvqQejZFZxu7LwH5m4W6s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=gOTPWDKueZMrPJVdVQ9mD1Uwa2oNsWNxdhlGxQ71a8cHqy+xLXzVS7TNKg8UXGfKV jqldqesYfp6IVjo+BrtGbMEoFm4uztEEf28I07DsWLvJkGlPhLqNqNWOdFvOnVODv2 y+s+G7Y32IuOKi+ODiIAYH6XUPztdGK0YtYvG7Dc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731449AbgG0OTv (ORCPT ); Mon, 27 Jul 2020 10:19:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:47926 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731445AbgG0OTu (ORCPT ); Mon, 27 Jul 2020 10:19:50 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 824F32075A; Mon, 27 Jul 2020 14:19:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595859590; bh=FrXkJIjIfPxFCaet73fYO+GvqQejZFZxu7LwH5m4W6s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QP6VQdqvzItpFCfZyRlNWp+LKQcsWAfJBHCjcWXC/YTuJMvx9XaWbP1s58lILZgcA fgmWYR5nbCkk0vImnk9BcAsIDshNXj7DvWfQGSp3ZTCS9FXxtv5kGJVEDDYJcq1HDc ZbZTFK5lyGVnGjpAbqRYzeXbsCJm107W1Ys/Ovg0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chen Minqiang , Ilya Ponetayev , Sungjong Seo , Namjae Jeon Subject: [PATCH 5.7 030/179] exfat: fix name_hash computation on big endian systems Date: Mon, 27 Jul 2020 16:03:25 +0200 Message-Id: <20200727134934.132666901@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200727134932.659499757@linuxfoundation.org> References: <20200727134932.659499757@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ilya Ponetayev commit db415f7aae07cadcabd5d2a659f8ad825c905299 upstream. On-disk format for name_hash field is LE, so it must be explicitly transformed on BE system for proper result. Fixes: 370e812b3ec1 ("exfat: add nls operations") Cc: stable@vger.kernel.org # v5.7 Signed-off-by: Chen Minqiang Signed-off-by: Ilya Ponetayev Reviewed-by: Sungjong Seo Signed-off-by: Namjae Jeon Signed-off-by: Greg Kroah-Hartman --- fs/exfat/nls.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/fs/exfat/nls.c +++ b/fs/exfat/nls.c @@ -495,7 +495,7 @@ static int exfat_utf8_to_utf16(struct su struct exfat_uni_name *p_uniname, int *p_lossy) { int i, unilen, lossy = NLS_NAME_NO_LOSSY; - unsigned short upname[MAX_NAME_LENGTH + 1]; + __le16 upname[MAX_NAME_LENGTH + 1]; unsigned short *uniname = p_uniname->name; WARN_ON(!len); @@ -523,7 +523,7 @@ static int exfat_utf8_to_utf16(struct su exfat_wstrchr(bad_uni_chars, *uniname)) lossy |= NLS_NAME_LOSSY; - upname[i] = exfat_toupper(sb, *uniname); + upname[i] = cpu_to_le16(exfat_toupper(sb, *uniname)); uniname++; } @@ -614,7 +614,7 @@ static int exfat_nls_to_ucs2(struct supe struct exfat_uni_name *p_uniname, int *p_lossy) { int i = 0, unilen = 0, lossy = NLS_NAME_NO_LOSSY; - unsigned short upname[MAX_NAME_LENGTH + 1]; + __le16 upname[MAX_NAME_LENGTH + 1]; unsigned short *uniname = p_uniname->name; struct nls_table *nls = EXFAT_SB(sb)->nls_io; @@ -628,7 +628,7 @@ static int exfat_nls_to_ucs2(struct supe exfat_wstrchr(bad_uni_chars, *uniname)) lossy |= NLS_NAME_LOSSY; - upname[unilen] = exfat_toupper(sb, *uniname); + upname[unilen] = cpu_to_le16(exfat_toupper(sb, *uniname)); uniname++; unilen++; }