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 9AB9BC3524D for ; Mon, 3 Feb 2020 16:26:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 73DCE22314 for ; Mon, 3 Feb 2020 16:26:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747163; bh=JBTtew/RrYoxRAEcziY3V8evveTYbaH5yr+lhRj1GTQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=tnXwm35q9FsCabCEgFjBltmNiObouEoDR6gX9jud8i3aZedZfwURnoJBf+ydBHfQZ RnDIQML6kn+HKjaDP/dOVZRKovMaJPDLuVWuxVWEAO7sOrq7UuWQJD27bEtKMl5g0x 8PdAbN+j01mk/pGx5vl//uruqzZ7zUV7BjdtoQ/A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728883AbgBCQ0C (ORCPT ); Mon, 3 Feb 2020 11:26:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:36888 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728853AbgBCQ0A (ORCPT ); Mon, 3 Feb 2020 11:26:00 -0500 Received: from localhost (unknown [104.132.45.99]) (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 4CC872051A; Mon, 3 Feb 2020 16:25:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747159; bh=JBTtew/RrYoxRAEcziY3V8evveTYbaH5yr+lhRj1GTQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KWxsmXD6FBViDIF6ioNJNAF9s7cAfRhlVCaPgxyEgCc1OdtHdgqdgTaRNjPFY0G5G +FFahNTIGyE4WPact8fJTa7F2piFGiD6WKvABRMQTs6YITq/znSIYdmyaJsEEdgXnq tIgKV5MgvhOgjupGTKsk2yeab718reqpLOYXNYm8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, syzbot+9d42b7773d2fecd983ab@syzkaller.appspotmail.com, Sean Young , Mauro Carvalho Chehab Subject: [PATCH 4.9 35/68] media: af9005: uninitialized variable printked Date: Mon, 3 Feb 2020 16:19:31 +0000 Message-Id: <20200203161910.726194724@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200203161904.705434837@linuxfoundation.org> References: <20200203161904.705434837@linuxfoundation.org> User-Agent: quilt/0.66 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 From: Sean Young commit 51d0c99b391f0cac61ad7b827c26f549ee55672c upstream. If usb_bulk_msg() fails, actual_length can be uninitialized. Reported-by: syzbot+9d42b7773d2fecd983ab@syzkaller.appspotmail.com Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/usb/dvb-usb/af9005.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/usb/dvb-usb/af9005.c +++ b/drivers/media/usb/dvb-usb/af9005.c @@ -567,7 +567,7 @@ static int af9005_boot_packet(struct usb u8 *buf, int size) { u16 checksum; - int act_len, i, ret; + int act_len = 0, i, ret; memset(buf, 0, size); buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);