From owner-svn-src-stable@FreeBSD.ORG Fri May 18 18:53:29 2012 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 06725106564A; Fri, 18 May 2012 18:53:29 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id CBEEC8FC08; Fri, 18 May 2012 18:53:28 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q4IIrSJO069551; Fri, 18 May 2012 18:53:28 GMT (envelope-from jhb@svn.freebsd.org) Received: (from jhb@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id q4IIrSGj069549; Fri, 18 May 2012 18:53:28 GMT (envelope-from jhb@svn.freebsd.org) Message-Id: <201205181853.q4IIrSGj069549@svn.freebsd.org> From: John Baldwin Date: Fri, 18 May 2012 18:53:28 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r235621 - in stable/8/sys: i386/conf kern X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 May 2012 18:53:29 -0000 Author: jhb Date: Fri May 18 18:53:28 2012 New Revision: 235621 URL: http://svn.freebsd.org/changeset/base/235621 Log: MFC 234186 If a linker file contains at least one module, but all of the modules fail to load (the MOD_LOAD event fails) during a kldload(2), unload the linker file and fail the kldload(2) with ENOEXEC. Modified: stable/8/sys/kern/kern_linker.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/boot/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/e1000/ (props changed) stable/8/sys/i386/conf/XENHVM (props changed) Modified: stable/8/sys/kern/kern_linker.c ============================================================================== --- stable/8/sys/kern/kern_linker.c Fri May 18 18:51:13 2012 (r235620) +++ stable/8/sys/kern/kern_linker.c Fri May 18 18:53:28 2012 (r235621) @@ -376,7 +376,7 @@ linker_load_file(const char *filename, l { linker_class_t lc; linker_file_t lf; - int foundfile, error; + int foundfile, error, modules; /* Refuse to load modules if securelevel raised */ if (prison0.pr_securelevel > 0) @@ -415,11 +415,22 @@ linker_load_file(const char *filename, l linker_file_unload(lf, LINKER_UNLOAD_FORCE); return (error); } + modules = !TAILQ_EMPTY(&lf->modules); KLD_UNLOCK(); linker_file_register_sysctls(lf); linker_file_sysinit(lf); KLD_LOCK(); lf->flags |= LINKER_FILE_LINKED; + + /* + * If all of the modules in this file failed + * to load, unload the file and return an + * error of ENOEXEC. + */ + if (modules && TAILQ_EMPTY(&lf->modules)) { + linker_file_unload(lf, LINKER_UNLOAD_FORCE); + return (ENOEXEC); + } *result = lf; return (0); } @@ -623,7 +634,7 @@ linker_file_unload(linker_file_t file, i /* * Inform any modules associated with this file that they are - * being be unloaded. + * being unloaded. */ MOD_XLOCK; for (mod = TAILQ_FIRST(&file->modules); mod; mod = next) {