From patchwork Mon Jul 12 06:01:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 474138 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=-19.4 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, 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 C5E57C07E9C for ; Mon, 12 Jul 2021 06:54:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ADE1B6102A for ; Mon, 12 Jul 2021 06:54:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239347AbhGLG5c (ORCPT ); Mon, 12 Jul 2021 02:57:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:58030 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236218AbhGLG4X (ORCPT ); Mon, 12 Jul 2021 02:56:23 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8D47F61132; Mon, 12 Jul 2021 06:53:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626072815; bh=QS7eS08UPakzcf37yOb2N13yEuOcKNARoQMQfcdc2LA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bcOQceoq56ekSwA/PFn+SJO/RpzvTz1VCBlpsMDZV7hKapp3+vdfiwsa5Ctpbt8UE IM6N9qdEDv0zxTPHGYd2s/iqGxoVZ0aDIISdZb8M4Su9oNR/LDwcD0JFBkA0icq/RS pg4HDr6CEf4ZwvXM/zoMf4dWl9fg29nM/9ZG7B4A= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai Subject: [PATCH 5.12 005/700] ALSA: usb-audio: Fix OOB access at proc output Date: Mon, 12 Jul 2021 08:01:28 +0200 Message-Id: <20210712060925.539552879@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Takashi Iwai commit 362372ceb6556f338e230f2d90af27b47f82365a upstream. At extending the available mixer values for 32bit types, we forgot to add the corresponding entries for the format dump in the proc output. This may result in OOB access. Here adds the missing entries. Fixes: bc18e31c3042 ("ALSA: usb-audio: Fix parameter block size for UAC2 control requests") Cc: Link: https://lore.kernel.org/r/20210622090647.14021-1-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/usb/mixer.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -3279,8 +3279,9 @@ static void snd_usb_mixer_dump_cval(stru struct usb_mixer_elem_list *list) { struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); - static const char * const val_types[] = {"BOOLEAN", "INV_BOOLEAN", - "S8", "U8", "S16", "U16"}; + static const char * const val_types[] = { + "BOOLEAN", "INV_BOOLEAN", "S8", "U8", "S16", "U16", "S32", "U32", + }; snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " "channels=%i, type=\"%s\"\n", cval->head.id, cval->control, cval->cmask, cval->channels,