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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,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 6666EC3A5A8 for ; Wed, 4 Sep 2019 18:08:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3D86A2087E for ; Wed, 4 Sep 2019 18:08:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567620531; bh=Ww5/T6cnbcNwLzs2Ajt50HYOnOQRkPAt0nadsaaNCvA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BF0Tf++wvvevB2D858iVn+WGLNFEEd2FXWLLWiftgWn1AGrm7n4lXcAnEMASJccN9 ow/YskBmBRZqTWLVHqkJIlRetMUxBcF+RCaW3PM7EnBEjWuvBAnXXToK4K1vLvkj82 ciN+i0R0nVh2QWLbvmRNaZge+KGYfb+jZM+hOMqs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389860AbfIDSIu (ORCPT ); Wed, 4 Sep 2019 14:08:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:51838 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389492AbfIDSIt (ORCPT ); Wed, 4 Sep 2019 14:08:49 -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 334092087E; Wed, 4 Sep 2019 18:08:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567620528; bh=Ww5/T6cnbcNwLzs2Ajt50HYOnOQRkPAt0nadsaaNCvA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=J5fic3g+s08y5ev6qed2yZ1rZxS2WM6Veighy3M1ltltE2FW/LIqCpce6T5GfFEYv S9HdmoxvyBIvCySSrCQTqHxxL1mMhg/q3+xzbNgZ1NnDYruukxJkKerUN/8Jb+LOrw G3KJ9Azy7e+ZaSk8Qx7RRfsqyo/AkyVhWUSm/LKI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai Subject: [PATCH 4.19 41/93] ALSA: line6: Fix memory leak at line6_init_pcm() error path Date: Wed, 4 Sep 2019 19:53:43 +0200 Message-Id: <20190904175306.749082109@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190904175302.845828956@linuxfoundation.org> References: <20190904175302.845828956@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: Takashi Iwai commit 1bc8d18c75fef3b478dbdfef722aae09e2a9fde7 upstream. I forgot to release the allocated object at the early error path in line6_init_pcm(). For addressing it, slightly shuffle the code so that the PCM destructor (pcm->private_free) is assigned properly before all error paths. Fixes: 3450121997ce ("ALSA: line6: Fix write on zero-sized buffer") Cc: Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/usb/line6/pcm.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) --- a/sound/usb/line6/pcm.c +++ b/sound/usb/line6/pcm.c @@ -554,6 +554,15 @@ int line6_init_pcm(struct usb_line6 *lin line6pcm->volume_monitor = 255; line6pcm->line6 = line6; + spin_lock_init(&line6pcm->out.lock); + spin_lock_init(&line6pcm->in.lock); + line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; + + line6->line6pcm = line6pcm; + + pcm->private_data = line6pcm; + pcm->private_free = line6_cleanup_pcm; + line6pcm->max_packet_size_in = usb_maxpacket(line6->usbdev, usb_rcvisocpipe(line6->usbdev, ep_read), 0); @@ -566,15 +575,6 @@ int line6_init_pcm(struct usb_line6 *lin return -EINVAL; } - spin_lock_init(&line6pcm->out.lock); - spin_lock_init(&line6pcm->in.lock); - line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; - - line6->line6pcm = line6pcm; - - pcm->private_data = line6pcm; - pcm->private_free = line6_cleanup_pcm; - err = line6_create_audio_out_urbs(line6pcm); if (err < 0) return err;