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Cisco Bug: CSCus60978 - With DHCP ACK response /w option 55 length greater than 254 bytes

Last Modified

May 13, 2018

Products (7)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco ASR 9922 Router
  • Cisco ASR 9010 Router
  • Cisco ASR 9904 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases

5.1.3.BASE

Description (partial)

Symptom:
Decode:
(cisco-6.6.2-i386-gdb) bt
#0  0x042e2c52 in iox_assert () at inc/x86e-nto/global/iosxr-os/os/assert.h:48
#1  0x042e4a5a in dhcpd_assert (cond=0, function=0x4338704 "dhcpd_dictionary_find_by_object", line=198) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_base.c:998
#2  0x042effe3 in dhcpd_dictionary_find_by_object (dobject=0x40d94f0, dobject_length=266) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_dictionary.c:198
#3  0x042efd10 in dhcpd_dictionary_get_or_update_dict_id (dict_id=0, dobject=0x40d94f0, dobject_length=266, line=8625) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_dictionary.c:109
#4  0x0423e442 in dhcpd_proxy_store_requested_options (client_handle=0x10d60398, packetInfo=0x100215ac) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_client_table.c:8622
#5  0x042b308d in dhcpd_proxy_fsm_proc_route_resp (client_handle=0x10d60398, packet_info=0x100215ac, client_var=0x40d9b60) at ipv4/dhcpd/src/dhcp/proxy/dhc4_proxy.c:2253
#6  0x042af66b in dhcpd_call_fsm (event_type=DHCPD_EVENT_ROUTE_SUCCESS, client_handle=0x10d60398, packet_info=0x100215ac, client_var=0x40d9b60) at ipv4/dhcpd/src/dhcp/proxy/dhc4_proxy.c:409
#7  0x042b3841 in dhcpd_proxy_fsm_proc_lease_resp (client_handle=0x10d60398, packet_info=0x100215ac, client_var=0x40d9b60) at ipv4/dhcpd/src/dhcp/proxy/dhc4_proxy.c:2408
#8  0x042af66b in dhcpd_call_fsm (event_type=DHCPD_EVENT_LEASE_DPM_SUCCESS, client_handle=0x10d60398, packet_info=0x100215ac, client_var=0x40d9b60) at ipv4/dhcpd/src/dhcp/proxy/dhc4_proxy.c:409
#9  0x042b2bb7 in dhcpd_proxy_fsm_process_ack (client_handle=0x10d60398, packet_info=0x100215ac, client_var=0x40d9b60) at ipv4/dhcpd/src/dhcp/proxy/dhc4_proxy.c:2143
#10 0x042af66b in dhcpd_call_fsm (event_type=DHCPD_EVENT_PACKET_ACK, client_handle=0x10d60398, packet_info=0x100215ac, client_var=0x40d9b60) at ipv4/dhcpd/src/dhcp/proxy/dhc4_proxy.c:409
#11 0x042b6789 in dhcpd_proxy_process_event (client_handle=0x10d60398, packet_info=0x100215ac, event_type=DHCPD_EVENT_PACKET_ACK) at ipv4/dhcpd/src/dhcp/proxy/dhc4_proxy.c:4075
#12 0x0427e9be in dhcpd_base_process_pkt_event_client_exists (client_handle=0x10d60398, packet_info=0x100215ac, event_type=DHCPD_EVENT_PACKET) at ipv4/dhcpd/src/dhcp/base/dhc4_base.c:1640
#13 0x0427f5c7 in dhcpd_base_process_packet_event (packet_info=0x100215ac) at ipv4/dhcpd/src/dhcp/base/dhc4_base.c:2010
#14 0x042008c6 in dhcpd_iox_process_packet (packetInfo=0x100215ac) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_event.c:594
#15 0x04200c78 in dhcpd_iox_eventQ_process (evc=0x40d9f78, ap=0x8) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_event.c:838
#16 0x04202802 in dhcpd_event_general_dispatch (evc=0x40d9f78, ap=0x8) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_event.c:1943
#17 0x0823dddf in event_async_attach_internal (emp=0x8, code=<value optimized out>, handler=0x1, ap=0x2) at infra/event_manager/src/event_async.c:224
#18 0x0823bf4c in event_create_manager (eflags=<value optimized out>, path=0x0, cflags=<value optimized out>) at infra/event_manager/src/event_manager.c:559
#19 0x04201b45 in dhcpd_iox_event_loop_mel (not_used=0x0) at ipv4/dhcpd/iox/dhcp/base/dhc4_iox_event.c:1360
#20 0x08281050 in ?? ()

Conditions:
DHCP proxy with Opt55 from the client with requested options length >254 bytes
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