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=-18.8 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=unavailable 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 86386C43461 for ; Mon, 5 Apr 2021 09:15:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C4ED61398 for ; Mon, 5 Apr 2021 09:15:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239675AbhDEJOI (ORCPT ); Mon, 5 Apr 2021 05:14:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:56932 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239000AbhDEJKh (ORCPT ); Mon, 5 Apr 2021 05:10:37 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 961BE613A8; Mon, 5 Apr 2021 09:10:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617613828; bh=2Zqk0R2I0xocC5foxilnpakK8Ni9eF3ISSkUmSVZNKk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lGCXQz8fZVIbWTJa/KKm+5KKrYte3yXXEkn7vtnHsEt8Z7Uwqh5Jo4U+Mp3PzUd4E 17WyxxYWEeQRuQ44xxrkosVk6FlnZ6Bbclm5aAZ1PoJuCUbOnoXjj8y5EE4KvezE5L wdlPopabRCwCVM+8o+gpkrh0x7Hdw+rpIKyGr7E0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, syzbot+3dea30b047f41084de66@syzkaller.appspotmail.com, Shuah Khan Subject: [PATCH 5.10 105/126] usbip: vhci_hcd fix shift out-of-bounds in vhci_hub_control() Date: Mon, 5 Apr 2021 10:54:27 +0200 Message-Id: <20210405085034.525372275@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210405085031.040238881@linuxfoundation.org> References: <20210405085031.040238881@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shuah Khan commit 1cc5ed25bdade86de2650a82b2730108a76de20c upstream. Fix shift out-of-bounds in vhci_hub_control() SetPortFeature handling. UBSAN: shift-out-of-bounds in drivers/usb/usbip/vhci_hcd.c:605:42 shift exponent 768 is too large for 32-bit type 'int' Reported-by: syzbot+3dea30b047f41084de66@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Signed-off-by: Shuah Khan Link: https://lore.kernel.org/r/20210324230654.34798-1-skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/usbip/vhci_hcd.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -594,6 +594,8 @@ static int vhci_hub_control(struct usb_h pr_err("invalid port number %d\n", wIndex); goto error; } + if (wValue >= 32) + goto error; if (hcd->speed == HCD_USB3) { if ((vhci_hcd->port_status[rhport] & USB_SS_PORT_STAT_POWER) != 0) {