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opnsense-src/sys/net
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Alexander V. Chernikov 406a4b37a2 [multipath][nhops] Fix random crashes with high route churn rate. 
When certain multipath route begins flapping really fast, it may
 result in creating multiple identical nexthop groups. The code
 responsible for unlinking unused nexthop groups had an implicit
 assumption that there could be only one nexthop group for the
 same combination of nexthops with weights. This assumption resulted
 in always unlinking the first "identical" group, instead of the
 desired one. Such action, in turn, produced a used-but-unlinked
 nhg along with freed-and-linked nhg, ending up in random crashes.

Similarly, it is possible that multiple identical nexthops gets
 created in the case of high route churn, resulting in the same
 problem when deleting one of such nexthops.

Fix by matching the nexthop/nexhop group pointer when deleting the item.

Reported by:	avg
(cherry picked from commit 054948bd81)
2021-08-17 21:14:42 +00:00
..
altq altq: Fix typo in features sysctl description 2021-07-31 10:12:01 +02:00
route [multipath][nhops] Fix random crashes with high route churn rate. 2021-08-17 21:14:42 +00:00
bpf.c vlan: deduplicate bpf_setpcp() and pf_ieee8021q_setpcp() 2021-08-02 16:50:32 +02:00
bpf.h bpf: Add an ioctl to set the VLAN Priority on packets sent by bpf 2021-08-02 16:50:32 +02:00
bpf_buffer.c Add an external mbuf buffer type that holds multiple unmapped pages. 2019-06-29 00:48:33 +00:00
bpf_buffer.h
bpf_filter.c
bpf_jitter.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
bpf_jitter.h Make UMA and malloc(9) return non-executable memory in most cases. 2018-06-13 17:04:41 +00:00
bpf_zerocopy.c Change synchonization rules for vm_page reference counting. 2019-09-09 21:32:42 +00:00
bpf_zerocopy.h
bpfdesc.h bpf: Add an ioctl to set the VLAN Priority on packets sent by bpf 2021-08-02 16:50:32 +02:00
bridgestp.c bridgestp: validate timer values in config BPDU 2021-05-18 12:00:38 +02:00
bridgestp.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
debugnet.c Allow to specify debugnet fib in sysctl/tunable. 2021-04-29 08:47:31 +00:00
debugnet.h Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
debugnet_inet.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
debugnet_int.h Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
dlt.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
ethernet.h ifconfig: Minor documentation fix 2021-05-10 03:48:05 +03:00
firewire.h
ieee8023ad_lacp.c LACP: When suppressing distributing, return ENOBUFS 2020-11-18 14:55:49 +00:00
ieee8023ad_lacp.h LACP: When suppressing distributing, return ENOBUFS 2020-11-18 14:55:49 +00:00
ieee_oui.h Fix a typo in r349969 2019-07-14 03:49:48 +00:00
if.c if: Remove unnecessary validation in the SIOCSIFNAME handler 2021-05-19 09:32:11 -04:00
if.h Widen ifnet_detach_sxlock coverage 2021-02-17 14:12:54 +01:00
if_arp.h Improve ARP logging. 2019-03-09 01:12:59 +00:00
if_bridge.c bridge/stp: Ensure we enter NET_EPOCH whenever we can send traffic 2021-03-02 15:50:21 +01:00
if_bridgevar.h bridge: fix STP roles and protos strings 2021-02-04 15:22:45 +01:00
if_clone.c MFC 53729367d3: Fix subinterface vlan creation. 2021-02-04 22:21:00 +00:00
if_clone.h epair: Do not abuse params to register the second interface 2020-01-28 22:44:24 +00:00
if_dead.c This adds the third step in getting BBR into the tree. BBR and 2019-08-01 14:17:31 +00:00
if_debug.c
if_disc.c Use the new VNET_DEFINE_STATIC macro when we are defining static VNET 2018-07-24 16:35:52 +00:00
if_dl.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_edsc.c if_edsc: generate an arbitrary MAC address 2020-03-02 02:45:57 +00:00
if_enc.c Consistently include opt_ipsec.h for consumers of <netipsec/ipsec.h>. 2020-05-29 19:22:40 +00:00
if_enc.h
if_epair.c net: Revert vnet/epair cleanup race mitigation 2020-12-01 16:34:43 +00:00
if_ethersubr.c bridge: Remove members when assigned to a new vnet 2021-03-02 15:50:21 +01:00
if_fwsubr.c if_firewire: fixing panic upon packet reception for VNET build 2021-05-03 07:51:53 +00:00
if_gif.c mbuf: add a way to mark flowid as calculated from the internal headers 2021-04-07 06:32:39 +03:00
if_gif.h gif_transmit() must always be called in the network epoch. 2020-01-15 06:18:32 +00:00
if_gre.c Add if_reassing method to all tunneling interfaces. 2020-06-03 13:02:31 +00:00
if_gre.h Add GRE-in-UDP encapsulation support as defined in RFC8086. 2019-04-24 09:05:45 +00:00
if_infiniband.c Streamline the infiniband code according to the ethernet code. 2020-12-31 10:07:02 +01:00
if_ipsec.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_ipsec.h
if_lagg.c This pulls over all the changes that are in the netflix 2021-06-08 01:18:32 +02:00
if_lagg.h Fix for IPoIB over lagg(4). 2020-12-29 17:35:06 +01:00
if_llatbl.c Fix setting static entries for arp/ndp. 2021-03-10 21:48:30 +00:00
if_llatbl.h Implement optional table entry limits for if_llatbl. 2020-03-04 17:17:02 +00:00
if_llc.h
if_loop.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_me.c Add if_reassing method to all tunneling interfaces. 2020-06-03 13:02:31 +00:00
if_media.c if_media.c SIOCGMEDIAX handler: improve loop 2020-11-03 14:33:04 +00:00
if_media.h if_media: definitions for 40GE LM4 ethernet media type 2020-09-16 14:45:16 +00:00
if_mib.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_mib.h
if_pflog.h
if_pfsync.h pfsync: Expose PFSYNCF_OK flag to userspace 2021-05-10 21:45:57 +02:00
if_sppp.h
if_spppfr.c
if_spppsubr.c Split rtinit() into multiple functions. 2021-01-16 22:42:41 +00:00
if_stf.c net: Introduce IPV6_DSCP(), IPV6_ECN() and IPV6_TRAFFIC_CLASS() macros 2021-05-10 16:30:44 +02:00
if_tap.h tap: add support for virtio-net offloads 2019-10-18 21:53:27 +00:00
if_tun.h if_tuntap(4): Add TUNGIFNAME 2019-07-25 22:23:34 +00:00
if_tuntap.c Remove redundant rtinit() calls from tuntap. 2021-01-13 10:03:15 +00:00
if_types.h Add support for IP over infiniband, IPoIB, to lagg(4). Currently only 2020-10-22 09:47:12 +00:00
if_var.h This pulls over all the changes that are in the netflix 2021-06-08 01:18:32 +02:00
if_vlan.c vlan: deduplicate bpf_setpcp() and pf_ieee8021q_setpcp() 2021-08-02 16:50:32 +02:00
if_vlan_var.h vlan: deduplicate bpf_setpcp() and pf_ieee8021q_setpcp() 2021-08-02 16:50:32 +02:00
if_vxlan.c mbuf: add a way to mark flowid as calculated from the internal headers 2021-04-07 06:32:39 +03:00
if_vxlan.h if_vxlan(4): add support for hardware assisted checksumming, TSO, and RSS. 2020-09-18 02:37:57 +00:00
ifdi_if.m iflib: Stop interface before (un)registering VLAN 2020-04-27 22:02:44 +00:00
iflib.c iflib: switch bare zone_mbuf use to m_free_raw 2021-07-05 12:05:00 +00:00
iflib.h iflib: Make if_shared_ctx_t a pointer to const 2021-03-22 11:42:18 -04:00
iflib_clone.c iflib: Fix detach of pseudo interfaces 2021-02-24 10:20:55 -05:00
iflib_private.h - Replace unused and only ever written to members of public iflib(9) 2019-06-15 11:07:41 +00:00
ifq.h Make net/ifq.h C++ friendly 2020-11-20 14:45:45 +00:00
infiniband.h Factor out generic IP over infiniband, IPoIB, definitions and code 2020-10-22 09:09:53 +00:00
mp_ring.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
mp_ring.h mp_ring: avoid items offset difference between iflib and mp_ring 2019-01-03 23:06:05 +00:00
mppc.h
mppcc.c kernel: provide panicky version of __unreachable 2020-05-13 18:07:37 +00:00
mppcd.c
netisr.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
netisr.h
netisr_internal.h
netmap.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
netmap_legacy.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
netmap_user.h netmap: fix constness warnings generated by "-Wcast-qual" 2020-10-03 09:33:29 +00:00
netmap_virt.h netmap: disable passthrough with no hypervisor support 2020-01-13 21:47:23 +00:00
paravirt.h
pfil.c Since now drivers that support pfil run their interrupts in the network 2020-01-23 01:49:22 +00:00
pfil.h Most Ethernet drivers that potentially can run a pfil(9) hook with 2019-03-10 17:20:09 +00:00
pfkeyv2.h Add SADB_SAFLAGS_ESN flag 2020-10-16 11:22:29 +00:00
pfvar.h pf: switch rule counters to pf_counter_u64 2021-08-11 13:37:55 +00:00
ppp_defs.h
radix.c Appease -Wsign-compare in radix.c 2021-04-29 08:47:31 +00:00
radix.h Fix typo. 2018-06-16 19:21:09 +00:00
raw_cb.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
raw_cb.h
raw_usrreq.c socket: Implement SO_RERROR 2021-08-10 18:54:00 -07:00
rndis.h Hyper-V: hn: Enable vSwitch RSC support in hn netvsc driver 2021-03-29 03:20:03 -07:00
route.c Flush remaining routes from the routing table during VNET shutdown. 2021-03-13 20:19:17 +00:00
route.h Flush remaining routes from the routing table during VNET shutdown. 2021-03-13 20:19:17 +00:00
rss_config.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
rss_config.h
rtsock.c Add required sysctl name length checks to various handlers 2021-07-29 20:32:58 -04:00
sff8436.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
sff8472.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
slcompress.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
slcompress.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
toeplitz.c
toeplitz.h
vnet.c Widen ifnet_detach_sxlock coverage 2021-02-17 14:12:54 +01:00
vnet.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00