32af08ecad
After r354748 mld_input() can change the mbuf. The new pointer is never returned to icmp6_input() and when passed to icmp6_rip6_input() the mbuf may no longer valid leading to a panic. Pass a pointer to the mbuf to mld_input() so we can return an updated version in the non-error case. Add a test sending an MLD packet case which will trigger this bug. Pointyhat to: bz Reported by: gallatin, thj MFC After: 2 weeks X-MFC with: r354748 Sponsored by: Netflix
77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
#!/usr/bin/env python
|
|
#-
|
|
# SPDX-License-Identifier: BSD-2-Clause
|
|
#
|
|
# Copyright (c) 2019 Netflix, Inc.
|
|
#
|
|
# 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.
|
|
#
|
|
# $FreeBSD$
|
|
#
|
|
|
|
import argparse
|
|
import scapy.all as sp
|
|
import socket
|
|
import sys
|
|
import binascii
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser("scapyi386.py",
|
|
description="IPv6 Ethernet Dest MAC test")
|
|
parser.add_argument('--sendif', nargs=1,
|
|
required=True,
|
|
help='The interface through which the packet will be sent')
|
|
parser.add_argument('--recvif', nargs=1,
|
|
required=True,
|
|
help='The interface on which to check for the packet')
|
|
parser.add_argument('--src', nargs=1,
|
|
required=True,
|
|
help='The source IP address')
|
|
parser.add_argument('--to', nargs=1,
|
|
required=True,
|
|
help='The destination IP address')
|
|
parser.add_argument('--debug',
|
|
required=False, action='store_true',
|
|
help='Enable test debugging')
|
|
parser.add_argument('--mldraw01',
|
|
required=False, action='store_true',
|
|
help='Multicast Listener Query Raw01')
|
|
|
|
args = parser.parse_args()
|
|
|
|
pkt = None
|
|
if args.mldraw01:
|
|
pkt = sp.Ether() / \
|
|
sp.IPv6(dst="ff02::1", hlim=1, nh=0) / \
|
|
sp.IPv6ExtHdrHopByHop(options = sp.RouterAlert(value=0)) / \
|
|
sp.ICMPv6MLQuery()
|
|
if pkt is None:
|
|
sys.exit(1)
|
|
if args.debug:
|
|
pkt.display()
|
|
sp.sendp(pkt, iface=args.sendif[0], verbose=False)
|
|
|
|
sys.exit(0)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|