From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1164852-1519981106-2-6842055653409912395 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.249, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1519981105; b=tzovcSY1rCL4NmeZW+dSOs2xnEh8ixW6okHjhDJ7dBCVknw BQE1P12nTfs4TRM1XLmyobyiU2Q89KhDhoL7DsGjKJmdWYjFx1moWvky/iB3mn5x Aw1XSw4lOj7vEASSEFBOvxoP8e4OQKW6/M3t2Vnhksm++n3LsEE+nWGvThinqZXZ fUnXIXz4BZxhDD7j32o5qP78F8pvj7xNPEFBNqSTFpxETFtT+hSE+rRbHTJfJAJa pvpT8hVjE+JnxC55qwvGWgg0z34rU+0MKWYWcEfZ2I6kBSbabSpul93gXvwuITF9 b+GnS84MoT1Rrr0bdKys8QUAVlN5KcoGswUcmdw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1519981105; bh=k+jfQfmdO80Vdw9if7nRAm58hq whQHif/QU5Cra37B8=; b=XcShRAMIejgh+w9dZ3JrbYN13TgekRK9auBb1ExbtX K+Q4sMpErx4OU3js9BE1Vh3eF9/WmcbE01KXO5CO49n+E7Plj673dVFbfuP8kZyO 9PTiEa2yRd3FR0PooIRaz+JVDYnyNp0G92B8E25O6BoJqnC0b2RYON+aitFRvKXi mCHqs/HJ+iS+uDT9x37e9xsU4py4t4FeOBg85BiEXXaLv8YDPb1sMLdE0G/fAju7 eWtBWQnwczfheon1fthczkH1Ort/zr9+aw6vyPKoH0QnN5EOEOGsw9L5YATUfRQY 6s7lw8WPZApQdsRjkVnLsagYgCcRsXM4zqTe2gVwOe5g== ARC-Authentication-Results: i=1; mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Authentication-Results: mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1424201AbeCBI6W (ORCPT ); Fri, 2 Mar 2018 03:58:22 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:52666 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1424200AbeCBI6S (ORCPT ); Fri, 2 Mar 2018 03:58:18 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Venkat Devvuru , Michael Chan , "David S. Miller" , Sasha Levin Subject: [PATCH 4.9 47/56] bnxt_en: Fix the Invalid VF id check in bnxt_vf_ndo_prep routine. Date: Fri, 2 Mar 2018 09:51:33 +0100 Message-Id: <20180302084451.939882994@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180302084449.568562222@linuxfoundation.org> References: <20180302084449.568562222@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Venkat Duvvuru [ Upstream commit 78f300049335ae81a5cc6b4b232481dc5e1f9d41 ] In bnxt_vf_ndo_prep (which is called by bnxt_get_vf_config ndo), there is a check for "Invalid VF id". Currently, the check is done against max_vfs. However, the user doesn't always create max_vfs. So, the check should be against the created number of VFs. The number of bnxt_vf_info structures that are allocated in bnxt_alloc_vf_resources routine is the "number of requested VFs". So, if an "invalid VF id" falls between the requested number of VFs and the max_vfs, the driver will be dereferencing an invalid pointer. Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.") Signed-off-by: Venkat Devvuru Signed-off-by: Michael Chan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -68,7 +68,7 @@ static int bnxt_vf_ndo_prep(struct bnxt netdev_err(bp->dev, "vf ndo called though sriov is disabled\n"); return -EINVAL; } - if (vf_id >= bp->pf.max_vfs) { + if (vf_id >= bp->pf.active_vfs) { netdev_err(bp->dev, "Invalid VF id %d\n", vf_id); return -EINVAL; }