From owner-freebsd-bugs@FreeBSD.ORG Sat Jan 17 13:30:21 2004 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A05A016A4CE for ; Sat, 17 Jan 2004 13:30:21 -0800 (PST) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6527743D5A for ; Sat, 17 Jan 2004 13:30:16 -0800 (PST) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) i0HLUGFR034711 for ; Sat, 17 Jan 2004 13:30:16 -0800 (PST) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.10/8.12.10/Submit) id i0HLUGQp034703; Sat, 17 Jan 2004 13:30:16 -0800 (PST) (envelope-from gnats) Resent-Date: Sat, 17 Jan 2004 13:30:16 -0800 (PST) Resent-Message-Id: <200401172130.i0HLUGQp034703@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Stephan Uphoff Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7A9FC16A4CE for ; Sat, 17 Jan 2004 13:25:23 -0800 (PST) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2762943D53 for ; Sat, 17 Jan 2004 13:25:22 -0800 (PST) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.12.10/8.12.10) with ESMTP id i0HLPLdL092438 for ; Sat, 17 Jan 2004 13:25:21 -0800 (PST) (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.12.10/8.12.10/Submit) id i0HLPLnS092437; Sat, 17 Jan 2004 13:25:21 -0800 (PST) (envelope-from nobody) Message-Id: <200401172125.i0HLPLnS092437@www.freebsd.org> Date: Sat, 17 Jan 2004 13:25:21 -0800 (PST) From: Stephan Uphoff To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.0 Subject: kern/61497: __elfN(map_insert) bug [patch] X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Jan 2004 21:30:21 -0000 >Number: 61497 >Category: kern >Synopsis: __elfN(map_insert) bug [patch] >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Jan 17 13:30:15 PST 2004 >Closed-Date: >Last-Modified: >Originator: Stephan Uphoff >Release: current - Jan 17 2004 >Organization: >Environment: N/A >Description: When the mapping for complete pages is not aligned __elfN(map_insert) copies the data from temporary mapped file backed pages to the userspace mapping. The copying is done in a loop with at most one page being copied at a time. Unfortunately the file offset is not updated and the same offset in the file is mapped and copied on each iteration. >How-To-Repeat: >Fix: Index: imgact_elf.c =================================================================== RCS file: /cvsroot/src/sys/kern/imgact_elf.c,v retrieving revision 1.143 diff -c -r1.143 imgact_elf.c *** imgact_elf.c 23 Dec 2003 02:45:24 -0000 1.143 --- imgact_elf.c 17 Jan 2004 20:59:55 -0000 *************** *** 333,338 **** --- 333,339 ---- return (KERN_FAILURE); } start += sz; + offset += sz; } rv = KERN_SUCCESS; } else { >Release-Note: >Audit-Trail: >Unformatted: