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 The new pointer is never returned to icmp6_input() and when passed to icmp6_rip6_input() the mbuf may no longer valid leading to a panic.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
90 lines
2.4 KiB
Bash
Executable File
90 lines
2.4 KiB
Bash
Executable File
# $FreeBSD$
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#-
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2019 Netflix, Inc.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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. $(atf_get_srcdir)/../common/vnet.subr
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atf_test_case "mldraw01" "cleanup"
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mldraw01_head() {
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atf_set descr 'Test for correct Ethernet Destination MAC address'
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atf_set require.user root
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atf_set require.progs scapy
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}
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mldraw01_body() {
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ids=65533
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id=`printf "%x" ${ids}`
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if [ $$ -gt 65535 ]; then
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xl=`printf "%x" $(($$ - 65535))`
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yl="1"
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else
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xl=`printf "%x" $$`
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yl=""
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fi
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vnet_init
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ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
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ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
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epair=$(vnet_mkepair)
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ifconfig ${epair}a up
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ifconfig ${epair}a inet6 ${ip6a}/64
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jname="v6t-${id}-${yl}-${xl}"
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vnet_mkjail ${jname} ${epair}b
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jexec ${jname} ifconfig ${epair}b up
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jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/64
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# Let IPv6 ND do its thing.
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#ping6 -q -c 1 ff02::1%${epair}a
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#ping6 -q -c 1 ${ip6b}
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sleep 3
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pyname=$(atf_get ident)
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atf_check -s exit:0 $(atf_get_srcdir)/mld.py \
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--sendif ${epair}a --recvif ${epair}a \
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--src ${ip6a} --to ${ip6b} \
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--${pyname}
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}
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mldraw01_cleanup() {
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vnet_cleanup
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}
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atf_init_test_cases()
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{
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atf_add_test_case "mldraw01"
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}
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# end
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