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 EF3C6C35247 for ; Mon, 3 Feb 2020 16:35:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C6A4C2087E for ; Mon, 3 Feb 2020 16:35:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747706; bh=kBkd5mUihVG4SraVZKSYG5V3/ELkKainFmm4pZDj604=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DePepQt67pRTaoUgA4lfo2XMV39bFdqLj5RR3+6i4+a9EQA77lNy0bqCF1+dL+6cj Ek/TPG2x4BZa7zjnyvQ16AFeo71qGh9ZzNHO6Z920ktvq9AgW4nRUHyHrckiTCVBiE 0+mt+tvbTWHFAzGgoVvC+Q/aTIE+gNM1BZI5HPMo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730908AbgBCQfF (ORCPT ); Mon, 3 Feb 2020 11:35:05 -0500 Received: from mail.kernel.org ([198.145.29.99]:49598 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730890AbgBCQfB (ORCPT ); Mon, 3 Feb 2020 11:35:01 -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 913F92087E; Mon, 3 Feb 2020 16:35:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747701; bh=kBkd5mUihVG4SraVZKSYG5V3/ELkKainFmm4pZDj604=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kK/VScyU8j5gmqBDPsD+jXtKtUy187rm52q/d8ewznQTvZ9LW3Ee98CwTpNS5z1og d+YL50OjlorTq21JhDVjAACegOQq4eex0K1paK1RGAvaqxyqEfpwbF7lrFOZeseRbX zr6Tc2uEm6rPf0tsifC3K6W1uhjAiUeAsv6bJPSo= 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 5.4 16/90] media: af9005: uninitialized variable printked Date: Mon, 3 Feb 2020 16:19:19 +0000 Message-Id: <20200203161919.874815094@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200203161917.612554987@linuxfoundation.org> References: <20200203161917.612554987@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 @@ -554,7 +554,7 @@ 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);