From nobody Sun Dec 14 06:17:19 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D2E8C00140 for ; Mon, 15 Aug 2022 19:58:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345704AbiHOT61 (ORCPT ); Mon, 15 Aug 2022 15:58:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345890AbiHOT4T (ORCPT ); Mon, 15 Aug 2022 15:56:19 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C852976474; Mon, 15 Aug 2022 11:52:33 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 19B6DB810A1; Mon, 15 Aug 2022 18:52:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7EC60C433C1; Mon, 15 Aug 2022 18:52:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660589543; bh=Ohh3paW8dP4iCobD3rCYKby9TRKkA45xwCV8Vho5sgU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kCllPtutsnL4C5Gw9J1z5d6sH/tWDyLnFFuy77YO9AFz64KqHbqrD4z8Zpnzc3MNr Fsc/gGBWbE8bYEEfuRMT+RZw0/FNYBiQOOZdonhXKQJTs7I4Cjg5453YcO3SSCGByK jratSqprwQHB0AGIth9+ru14EYSltjP2MfkGaedk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Shuqi Zhang , Ritesh Harjani , Theodore Tso , Sasha Levin Subject: [PATCH 5.15 751/779] ext4: use kmemdup() to replace kmalloc + memcpy Date: Mon, 15 Aug 2022 20:06:35 +0200 Message-Id: <20220815180409.581858100@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Shuqi Zhang [ Upstream commit 4efd9f0d120c55b08852ee5605dbb02a77089a5d ] Replace kmalloc + memcpy with kmemdup() Signed-off-by: Shuqi Zhang Reviewed-by: Ritesh Harjani Link: https://lore.kernel.org/r/20220525030120.803330-1-zhangshuqi3@huawei.= com Signed-off-by: Theodore Ts'o Signed-off-by: Sasha Levin --- fs/ext4/xattr.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index b57fd07fbdba..d92d50de5a01 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1887,11 +1887,10 @@ ext4_xattr_block_set(handle_t *handle, struct inode= *inode, =20 unlock_buffer(bs->bh); ea_bdebug(bs->bh, "cloning"); - s->base =3D kmalloc(bs->bh->b_size, GFP_NOFS); + s->base =3D kmemdup(BHDR(bs->bh), bs->bh->b_size, GFP_NOFS); error =3D -ENOMEM; if (s->base =3D=3D NULL) goto cleanup; - memcpy(s->base, BHDR(bs->bh), bs->bh->b_size); s->first =3D ENTRY(header(s->base)+1); header(s->base)->h_refcount =3D cpu_to_le32(1); s->here =3D ENTRY(s->base + offset); --=20 2.35.1