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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6C56C433FE for ; Mon, 18 Oct 2021 13:28:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C3D72610C7 for ; Mon, 18 Oct 2021 13:28:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232223AbhJRNai (ORCPT ); Mon, 18 Oct 2021 09:30:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:42664 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232221AbhJRN3l (ORCPT ); Mon, 18 Oct 2021 09:29:41 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4297361350; Mon, 18 Oct 2021 13:27:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1634563650; bh=QSXOblMFYWaPrHw9SU69z3qx5eRIYCK1adDIjf4a6c4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l33Ditht/5+gGsxJyUYRgg666MhoyCVs6areds/m4miiXaZcwwXEm+RUw9QPeW3eo 3PSv75vUhqXlcdK9+lE1SZ4Xt1GCbELj+rLIjvN5mcBDPsxrL5mq2nfxTZwvQXog/U anu+8sfSm4hf/SrMNuDp6HO1ImxIUb8obkDjkTVg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, James Morse , Borislav Petkov , Reinette Chatre Subject: [PATCH 4.19 10/50] x86/resctrl: Free the ctrlval arrays when domain_setup_mon_state() fails Date: Mon, 18 Oct 2021 15:24:17 +0200 Message-Id: <20211018132326.873204233@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211018132326.529486647@linuxfoundation.org> References: <20211018132326.529486647@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: stable@vger.kernel.org From: James Morse commit 64e87d4bd3201bf8a4685083ee4daf5c0d001452 upstream. domain_add_cpu() is called whenever a CPU is brought online. The earlier call to domain_setup_ctrlval() allocates the control value arrays. If domain_setup_mon_state() fails, the control value arrays are not freed. Add the missing kfree() calls. Fixes: 1bd2a63b4f0de ("x86/intel_rdt/mba_sc: Add initialization support") Fixes: edf6fa1c4a951 ("x86/intel_rdt/cqm: Add RMID (Resource monitoring ID) management") Signed-off-by: James Morse Signed-off-by: Borislav Petkov Acked-by: Reinette Chatre Cc: Link: https://lkml.kernel.org/r/20210917165958.28313-1-james.morse@arm.com Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/intel_rdt.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/kernel/cpu/intel_rdt.c +++ b/arch/x86/kernel/cpu/intel_rdt.c @@ -563,6 +563,8 @@ static void domain_add_cpu(int cpu, stru } if (r->mon_capable && domain_setup_mon_state(r, d)) { + kfree(d->ctrl_val); + kfree(d->mbps_val); kfree(d); return; }