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,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 32354C18E5B for ; Tue, 17 Mar 2020 11:19:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0092220658 for ; Tue, 17 Mar 2020 11:19:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584443971; bh=De0LadD2WRqVJkPE0M+fU9od+pLryn7IlaEhwppLaHw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GvawsPCaG3sfqKeUsFvyg+42qwXq2U0soA0JP1auzb39+WzWZ5GVpHVWhttcpZgcZ dHBQbmN7eXYCC+kj4uD2OBSs8wEQrcqoASwTOBAhmx27RJ1kmAzc/ThG5wfy4naiOP g1NPv382+RQkH/0w0PEMZlP3ZicWAtLZ2BwVURFg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728197AbgCQLD6 (ORCPT ); Tue, 17 Mar 2020 07:03:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:44032 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728201AbgCQLD5 (ORCPT ); Tue, 17 Mar 2020 07:03:57 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 1132720658; Tue, 17 Mar 2020 11:03:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584443037; bh=De0LadD2WRqVJkPE0M+fU9od+pLryn7IlaEhwppLaHw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GYaG+2cjUOqb48txUwv9nSgDVrpqb9p6zSVkb4dE4AJRoPEttkvu5jCP6AUJ/E7I/ 67wxdEYpcQkVMOOefPUaf420kmlZN+ZIWcnkjBsItcVv5UiLdIFOP77+NeAmicNVBA abQ3+7Jmw/STS1e06FZnJn/ljwWz7AVF6X6KOBho= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jakub Kicinski , Jiri Pirko , "David S. Miller" Subject: [PATCH 5.4 037/123] devlink: validate length of region addr/len Date: Tue, 17 Mar 2020 11:54:24 +0100 Message-Id: <20200317103311.693229382@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200317103307.343627747@linuxfoundation.org> References: <20200317103307.343627747@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jakub Kicinski [ Upstream commit ff3b63b8c299b73ac599b120653b47e275407656 ] DEVLINK_ATTR_REGION_CHUNK_ADDR and DEVLINK_ATTR_REGION_CHUNK_LEN lack entries in the netlink policy. Corresponding nla_get_u64()s may read beyond the end of the message. Fixes: 4e54795a27f5 ("devlink: Add support for region snapshot read command") Signed-off-by: Jakub Kicinski Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/core/devlink.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -5804,6 +5804,8 @@ static const struct nla_policy devlink_n [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, + [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, + [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 },