From owner-svn-src-head@freebsd.org Mon Apr 10 20:55:43 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DD0D1D3746C; Mon, 10 Apr 2017 20:55:43 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id AF239AF; Mon, 10 Apr 2017 20:55:43 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v3AKtg8g040138; Mon, 10 Apr 2017 20:55:42 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v3AKtg4h040137; Mon, 10 Apr 2017 20:55:42 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201704102055.v3AKtg4h040137@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Mon, 10 Apr 2017 20:55:42 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r316686 - head/sys/vm X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Apr 2017 20:55:44 -0000 Author: markj Date: Mon Apr 10 20:55:42 2017 New Revision: 316686 URL: https://svnweb.freebsd.org/changeset/base/316686 Log: Add some bounds assertions to the vm_map_entry clip functions. Reviewed by: kib MFC after: 1 week Sponsored by: Dell EMC Isilon X-Differential Revision: https://reviews.freebsd.org/D10349 Modified: head/sys/vm/vm_map.c Modified: head/sys/vm/vm_map.c ============================================================================== --- head/sys/vm/vm_map.c Mon Apr 10 19:22:15 2017 (r316685) +++ head/sys/vm/vm_map.c Mon Apr 10 20:55:42 2017 (r316686) @@ -1655,6 +1655,8 @@ _vm_map_clip_start(vm_map_t map, vm_map_ vm_map_entry_t new_entry; VM_MAP_ASSERT_LOCKED(map); + KASSERT(entry->end > start && entry->start < start, + ("_vm_map_clip_start: invalid clip of entry %p", entry)); /* * Split off the front portion -- note that we must insert the new @@ -1739,6 +1741,8 @@ _vm_map_clip_end(vm_map_t map, vm_map_en vm_map_entry_t new_entry; VM_MAP_ASSERT_LOCKED(map); + KASSERT(entry->start < end && entry->end > end, + ("_vm_map_clip_end: invalid clip of entry %p", entry)); /* * If there is no object backing this entry, we might as well create