From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:35919 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2992427AbcHROAk (ORCPT ); Thu, 18 Aug 2016 10:00:40 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Heinrich Schuchardt , Felipe Balbi Subject: [PATCH 4.4 001/138] usb: gadget: avoid exposing kernel stack Date: Thu, 18 Aug 2016 15:56:51 +0200 Message-Id: <20160818135553.580442094@linuxfoundation.org> In-Reply-To: <20160818135553.377018690@linuxfoundation.org> References: <20160818135553.377018690@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Heinrich Schuchardt commit ffeee83aa0461992e8a99a59db2df31933e60362 upstream. Function in_rq_cur copies random bytes from the stack. Zero the memory instead. Fixes: 132fcb460839 ("usb: gadget: Add Audio Class 2.0 Driver") Signed-off-by: Heinrich Schuchardt Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/f_uac2.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -1291,6 +1291,7 @@ in_rq_cur(struct usb_function *fn, const if (control_selector == UAC2_CS_CONTROL_SAM_FREQ) { struct cntrl_cur_lay3 c; + memset(&c, 0, sizeof(struct cntrl_cur_lay3)); if (entity_id == USB_IN_CLK_ID) c.dCUR = p_srate;