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=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 24747C43382 for ; Thu, 27 Sep 2018 09:17:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA00D2152F for ; Thu, 27 Sep 2018 09:17:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DA00D2152F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728920AbeI0PfN (ORCPT ); Thu, 27 Sep 2018 11:35:13 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:56100 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727272AbeI0PfM (ORCPT ); Thu, 27 Sep 2018 11:35:12 -0400 Received: from localhost (ip-213-127-77-73.ip.prioritytelecom.net [213.127.77.73]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id E20FA1120; Thu, 27 Sep 2018 09:17:54 +0000 (UTC) From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Sakamoto , Takashi Iwai Subject: [PATCH 4.14 22/64] ALSA: firewire-digi00x: fix memory leak of private data Date: Thu, 27 Sep 2018 11:03:39 +0200 Message-Id: <20180927090253.094611661@linuxfoundation.org> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20180927090249.801943776@linuxfoundation.org> References: <20180927090249.801943776@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Sakamoto commit a49a83ab05e34edd6c71a4fbd062c9a7ba6d18aa upstream. Although private data of sound card instance is usually allocated in the tail of the instance, drivers in ALSA firewire stack allocate the private data before allocating the instance. In this case, the private data should be released explicitly at .private_free callback of the instance. This commit fixes memory leak following to the above design. Fixes: 86c8dd7f4da3 ('ALSA: firewire-digi00x: delayed registration of sound card') Cc: # v4.7+ Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/firewire/digi00x/digi00x.c | 1 + 1 file changed, 1 insertion(+) --- a/sound/firewire/digi00x/digi00x.c +++ b/sound/firewire/digi00x/digi00x.c @@ -49,6 +49,7 @@ static void dg00x_free(struct snd_dg00x fw_unit_put(dg00x->unit); mutex_destroy(&dg00x->mutex); + kfree(dg00x); } static void dg00x_card_free(struct snd_card *card)