From owner-svn-src-user@freebsd.org Fri Sep 27 07:20:18 2019 Return-Path: Delivered-To: svn-src-user@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id EAB1AF8C8D for ; Fri, 27 Sep 2019 07:20:18 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46fjqk5S9qz4SHl; Fri, 27 Sep 2019 07:20:18 +0000 (UTC) (envelope-from pho@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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9FE46D470; Fri, 27 Sep 2019 07:20:18 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x8R7KIXm015515; Fri, 27 Sep 2019 07:20:18 GMT (envelope-from pho@FreeBSD.org) Received: (from pho@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x8R7KIL0015514; Fri, 27 Sep 2019 07:20:18 GMT (envelope-from pho@FreeBSD.org) Message-Id: <201909270720.x8R7KIL0015514@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: pho set sender to pho@FreeBSD.org using -f From: Peter Holm Date: Fri, 27 Sep 2019 07:20:18 +0000 (UTC) To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r352789 - user/pho/stress2/misc X-SVN-Group: user X-SVN-Commit-Author: pho X-SVN-Commit-Paths: user/pho/stress2/misc X-SVN-Commit-Revision: 352789 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Sep 2019 07:20:19 -0000 Author: pho Date: Fri Sep 27 07:20:18 2019 New Revision: 352789 URL: https://svnweb.freebsd.org/changeset/base/352789 Log: Added a regression test. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/fexecve.sh (contents, props changed) Added: user/pho/stress2/misc/fexecve.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/fexecve.sh Fri Sep 27 07:20:18 2019 (r352789) @@ -0,0 +1,96 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2019 Dell EMC Isilon +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ +# + +# Reported by syzkaller. +# "panic: vm_page_free_prep: page 0x61e5968 has unexpected ref_count ." seen +# Fixed by r352748 + +# Test scenario by: Mark Johnston + +cat > /tmp/fexecve.c < +#include +#include + +#include +#include +#include +#include +#include + +int +main(int argc __unused, char **argv) +{ + char template[PATH_MAX]; + void *addr; + size_t sz; + int fd; + + sz = 16 * 4096; + + (void)snprintf(template, sizeof(template), "test.XXXXXX"); + fd = mkstemp(template); + if (fd < 0) + err(1, "mkstemp"); + if (fchmod(fd, 0700) < 0) + err(1, "fchmod"); + if (ftruncate(fd, sz) < 0) + err(1, "ftruncate"); + + addr = mmap(NULL, sz, PROT_MAX(PROT_READ) | PROT_READ, MAP_SHARED, + fd, 0); + if (addr == MAP_FAILED) + err(1, "mmap"); + + if (mlock(addr, sz) != 0) + err(1, "mlock"); + + if (ftruncate(fd, 0) != 0) + err(1, "ftruncate"); + if (ftruncate(fd, sz) != 0) + err(1, "ftruncate"); + + (void)close(fd); + + fd = open(template, O_EXEC); + if (fd < 0) + err(1, "open"); + fexecve(fd, argv, NULL); + err(1, "fexecve"); + + return (0); +} +EOF +cc -o /tmp/fexecve -Wall -Wextra -O2 /tmp/fexecve.c || exit 1 +echo "Expect: fexecve: fexecve: Input/output error" +/tmp/fexecve + +rm -f /tmp/fexecve /tmp/fexecve.c