[VPP-684] Adding ip address which mask length exceeding upper limit, will meet segment fault when pinging.

[vvalderrv]

Description

Add IP address which mask length exceeding upper limit , then ping this IP from peer, we will meet a segment fault.

So we should fix it and check the mask length first.

vpp# set int ip address GigabitEthernet0/4/0 23.1.2.10/300

vpp#

vpp# show int address

GigabitEthernet0/4/0 (up):

23.1.2.10/300

GigabitEthernet0/5/0 (dn):

local0 (dn):

vpp#

Program received signal SIGSEGV, Segmentation fault.

arp_input (vm=0xae8cc0 <vlib_global_main>, node=0x7fffc5012800, frame=0x7fffc4dd6600)

at /home/wanghui/vpp_git/vpp/build-data/../vnet/vnet/ethernet/arp.c:1053

warning: Source file is more recent than executable.

1053 if (adj0->lookup_next_index != IP_LOOKUP_NEXT_ARP)

Missing separate debuginfos, use: debuginfo-install glibc-2.17-78.el7.x86_64 openssl-libs-1.0.1e-42.el7.x86_64 zlib-1.2.7-13.el7.x86_64

(gdb) bt

#0 arp_input (vm=0xae8cc0 <vlib_global_main>, node=0x7fffc5012800, frame=0x7fffc4dd6600)

at /home/wanghui/vpp_git/vpp/build-data/../vnet/vnet/ethernet/arp.c:1053

#1 0x00007ffff7547f2a in dispatch_node (vm=0xae8cc0 <vlib_global_main>, node=0x7fffc5012800, type=, dispatch_state=,

frame=<optimized out>, last_time_stamp=25677255563679) at /home/wanghui/vpp_git/vpp/build-data/../vlib/vlib/main.c:996

#2 0x00007ffff7548115 in dispatch_pending_node (vm=vm@entry=0xae8cc0 <vlib_global_main>, p=0x7fffc4e105c4, last_time_stamp=)

at /home/wanghui/vpp_git/vpp/build-data/../vlib/vlib/main.c:1134

#3 0x00007ffff75487be in vlib_main_loop (vm=0xae8cc0 <vlib_global_main>) at /home/wanghui/vpp_git/vpp/build-data/../vlib/vlib/main.c:1518

#4 vlib_main (vm=vm@entry=0xae8cc0 <vlib_global_main>, input=input@entry=0x7fffc5603fa0)

at /home/wanghui/vpp_git/vpp/build-data/../vlib/vlib/main.c:1653

#5 0x00007ffff77a5a83 in thread0 (arg=11439296) at /home/wanghui/vpp_git/vpp/build-data/../vlib/vlib/unix/main.c:432

#6 0x00007ffff660c450 in clib_calljmp () at /home/wanghui/vpp_git/vpp/build-data/../vppinfra/vppinfra/longjmp.S:110

#7 0x00007fffffffd320 in ?? ()

#8 0x00007ffff77a62b1 in vlib_unix_main (argc=, argv=)

at /home/wanghui/vpp_git/vpp/build-data/../vlib/vlib/unix/main.c:488

#9 0x0000000000000000 in ?? ()

(gdb)

Assignee

hui wang

Reporter

hui wang

Comments

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Original issue: https://jira.fd.io/browse/VPP-684