diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2019-10-30 14:46:40 +0100 |
|---|---|---|
| committer |   Andrew Yourtchenko <ayourtch@gmail.com> | 2020-08-07 21:45:43 +0000 |
| commit | 2c4ba41bea6d89ade80d67241eaf135e4b55de19 (patch) | |
| tree | 06305bccc9c31dbad1bda5c27dcdd9928a7b92ca | |
| parent | 818b5bcdf11d8a3e4fadc6484b11438d5e615777 (diff) | |
dhcp: fix proxy dhcpv6 size check
Type: fix
Change-Id: Ibbb25bc530fdeaa3083c9b833a286a5d40e93c1e
Signed-off-by: Benoît Ganne <bganne@cisco.com>
(cherry picked from commit 60ad1a59a39872d0eff8ed0961fd81c5854c968b)
| -rw-r--r-- | src/vnet/dhcp/dhcp6_proxy_node.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/vnet/dhcp/dhcp6_proxy_node.c b/src/vnet/dhcp/dhcp6_proxy_node.c index 6006f0e23c5..3de3121d3e0 100644 --- 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; |