From patchwork Thu May 20 09:22:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 444369 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 89926C43611 for ; Thu, 20 May 2021 10:14:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67FF561442 for ; Thu, 20 May 2021 10:14:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235423AbhETKPn (ORCPT ); Thu, 20 May 2021 06:15:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:47742 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235907AbhETKMz (ORCPT ); Thu, 20 May 2021 06:12:55 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A2FA661978; Thu, 20 May 2021 09:44:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621503845; bh=Lpq4Yp0P9usPQ2Fhgl0JwM+bC+1n/ZpVwxoqJAW/Wlc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Otjq2l45alE44FET+isktsrnZli91UvobGGQi+7YvA5Y1kZxzfGR3xMNQCvV42Ti+ RXFNzXlLnFervvbonQ2VByByhy2FsSgPGn76JhhYl1YgMYdoLAj/7dT2QPovXgrr8r uxXFMZYUYhVhKsOlScv/6XQl98HanlH8giRT9EdM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe JAILLET , Andy Shevchenko , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 4.19 371/425] ACPI: scan: Fix a memory leak in an error handling path Date: Thu, 20 May 2021 11:22:20 +0200 Message-Id: <20210520092143.594590376@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092131.308959589@linuxfoundation.org> References: <20210520092131.308959589@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christophe JAILLET [ Upstream commit 0c8bd174f0fc131bc9dfab35cd8784f59045da87 ] If 'acpi_device_set_name()' fails, we must free 'acpi_device_bus_id->bus_id' or there is a (potential) memory leak. Fixes: eb50aaf960e3 ("ACPI: scan: Use unique number for instance_no") Signed-off-by: Christophe JAILLET Reviewed-by: Andy Shevchenko Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/scan.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index d3c551bdc2da..1e7e2c438acf 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -705,6 +705,7 @@ int acpi_device_add(struct acpi_device *device, result = acpi_device_set_name(device, acpi_device_bus_id); if (result) { + kfree_const(acpi_device_bus_id->bus_id); kfree(acpi_device_bus_id); goto err_unlock; }