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dhcp: fix proxy dhcpv6 size check
56/28156/6
author
Benoît Ganne
<bganne@cisco.com>
Wed, 30 Oct 2019 13:46:40 +0000
(14:46 +0100)
committer
Andrew Yourtchenko
<ayourtch@gmail.com>
Fri, 7 Aug 2020 21:45:43 +0000
(21:45 +0000)
Type: fix
Change-Id: Ibbb25bc530fdeaa3083c9b833a286a5d40e93c1e
Signed-off-by: Benoît Ganne <bganne@cisco.com>
(cherry picked from commit
60ad1a59a39872d0eff8ed0961fd81c5854c968b
)
src/vnet/dhcp/dhcp6_proxy_node.c
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diff --git
a/src/vnet/dhcp/dhcp6_proxy_node.c
b/src/vnet/dhcp/dhcp6_proxy_node.c
index
6006f0e
..
3de3121
100644
(file)
--- a/
src/vnet/dhcp/dhcp6_proxy_node.c
+++ b/
src/vnet/dhcp/dhcp6_proxy_node.c
@@
-315,8
+315,9
@@
dhcpv6_proxy_to_server_input (vlib_main_t * vm,
link_address_set:
- if ((b0->current_length + sizeof (*id1) + sizeof (*vss1) +
- sizeof (*cmac)) > vlib_buffer_get_default_data_size (vm))
+ if ((b0->current_data + b0->current_length + sizeof (*id1) +
+ sizeof (*vss1) + sizeof (*cmac)) >
+ vlib_buffer_get_default_data_size (vm))
{
error0 = DHCPV6_PROXY_ERROR_PKT_TOO_BIG;
next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;