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36e15b717e
freebsd-dev/sys/net
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Alexander V. Chernikov 36e15b717e routing: Fix crashes with dpdk_lpm[46] algo. 
When a prefix gets deleted from the RIB, dpdk_lpm algo needs to know
 the nexthop of the "parent" prefix to update its internal state.
The glue code, which utilises RIB as a backing route store, uses
 fib[46]_lookup_rt() for the prefix destination after its deletion
 to fetch the desired nexthop.
This approach does not work when deleting less-specific prefixes
 with most-specific ones are still present. For example, if
 10.0.0.0/24, 10.0.0.0/23 and 10.0.0.0/22 exist in RIB, deleting
 10.0.0.0/23 would result in 10.0.0.0/24 being returned as a search
 result instead of 10.0.0.0/22. This, in turn, results in the failed
 datastructure update: part of the deleted /23 prefix will still
 contain the reference to an old nexthop. This leads to the
 use-after-free behaviour, ending with the eventual crashes.

Fix the logic flaw by properly fetching the prefix "parent" via
 newly-created rt_get_inet[6]_parent() helpers.

Differential Revision: https://reviews.freebsd.org/D31546
PR:	256882,256833
MFC after:	1 week
2021-08-17 20:46:22 +00:00
..
altq altq: Increase maximum number of CBQ and HFSC classes 2021-03-04 20:58:22 +01:00
route routing: Fix crashes with dpdk_lpm[46] algo. 2021-08-17 20:46:22 +00:00
bpf_buffer.c
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
bpf_zerocopy.c
bpf_zerocopy.h
bpf.c vlan: deduplicate bpf_setpcp() and pf_ieee8021q_setpcp() 2021-07-26 23:13:31 +02:00
bpf.h bpf: Add an ioctl to set the VLAN Priority on packets sent by bpf 2021-07-26 23:13:31 +02:00
bpfdesc.h bpf: Add an ioctl to set the VLAN Priority on packets sent by bpf 2021-07-26 23:13:31 +02:00
bridgestp.c bridgestp: validate timer values in config BPDU 2021-04-19 12:09:18 +02:00
bridgestp.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
debugnet_inet.c debugnet: Fix false-positive assertions for dp_state 2021-07-28 16:34:14 -07:00
debugnet_int.h Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
debugnet.c Allow to specify debugnet fib in sysctl/tunable. 2021-04-10 13:47:49 +00:00
debugnet.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 2021-05-03 14:38:52 +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 Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights 2021-08-08 10:42:24 -04:00
if_arp.h
if_bridge.c if_bridge: allow MTU changes 2021-07-28 22:01:12 +02:00
if_bridgevar.h bridge: fix STP roles and protos strings 2021-02-01 15:27:06 +01:00
if_clone.c Fix subinterface vlan creation. 2021-01-29 21:43:20 +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
if_debug.c
if_disc.c
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 ether: Add a KMSAN check for transmitted frames 2021-08-11 16:33:41 -04:00
if_fwsubr.c if_firewire: fixing panic upon packet reception for VNET build 2021-04-13 22:59:58 +00:00
if_gif.c mbuf: add a way to mark flowid as calculated from the internal headers 2021-03-31 14:38:26 +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
if_infiniband.c [lltable] Unify datapath feedback mechamism. 2021-08-04 22:52:43 +00:00
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 2021-01-28 11:53:05 -05:00
if_lagg.h Fix for IPoIB over lagg(4). 2020-12-29 17:35:06 +01:00
if_llatbl.c [lltable] Restructure nd6 code. 2021-08-07 09:59:11 +00:00
if_llatbl.h [lltable] Restructure nd6 code. 2021-08-07 09:59:11 +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 2021-04-26 14:31:17 +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 2021-03-04 20:56:48 +01:00
if_tap.h tap: add support for virtio-net offloads 2019-10-18 21:53:27 +00:00
if_tun.h
if_tuntap.c tuntap: clean up cc --analyze 2021-07-21 19:14:43 -05:00
if_types.h base: remove if_wg(4) and associated utilities, manpage 2021-03-17 09:14:48 -05:00
if_var.h Enforce check for using the return result for ifa?_try_ref(). 2021-04-05 03:35:19 +01:00
if_vlan_var.h vlan: deduplicate bpf_setpcp() and pf_ieee8021q_setpcp() 2021-07-26 23:13:31 +02:00
if_vlan.c vlan: deduplicate bpf_setpcp() and pf_ieee8021q_setpcp() 2021-07-26 23:13:31 +02:00
if_vxlan.c Make LINT NOINET and NOIP kernel builds warning free. 2021-06-06 14:03:06 +00:00
if_vxlan.h if_vxlan(4): add support for hardware assisted checksumming, TSO, and RSS. 2020-09-18 02:37:57 +00:00
if.c net: disallow MTU changes on bridge member interfaces 2021-07-28 22:03:30 +02:00
if.h Use thunks for compat ioctls using struct ifgroupreq. 2021-05-05 13:59:00 -07:00
ifdi_if.m iflib: add support for admin completion queues 2021-03-03 00:40:47 +01:00
iflib_clone.c iflib: allow clone detach if not yet init 2021-03-09 13:49:13 -06:00
iflib_private.h
iflib.c iflib: use m_gethdr_raw 2021-07-07 11:05:46 +00:00
iflib.h iflib: Add a new quirk 2021-06-24 13:00:56 +02:00
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
mppc.h
mppcc.c kernel: provide panicky version of __unreachable 2020-05-13 18:07:37 +00:00
mppcd.c
netisr_internal.h
netisr.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
netisr.h
netmap_legacy.h netmap: add kernel support for the "offsets" feature 2021-03-29 16:29:01 +00:00
netmap_user.h netmap: restore commit a56e6334d1 2021-04-02 10:45:47 +00:00
netmap_virt.h netmap: add kernel support for the "offsets" feature 2021-03-29 16:29:01 +00:00
netmap.h netmap: several typo fixes 2021-04-02 07:01:20 +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
pfkeyv2.h Add SADB_SAFLAGS_ESN flag 2020-10-16 11:22:29 +00:00
pfvar.h pf: remove DIOCGETSTATESNV 2021-07-30 11:45:28 +02:00
ppp_defs.h
radix.c routing: Fix crashes with dpdk_lpm[46] algo. 2021-08-17 20:46:22 +00:00
radix.h routing: Fix crashes with dpdk_lpm[46] algo. 2021-08-17 20:46:22 +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 2021-07-28 09:35:09 -07:00
rndis.h Hyper-V: hn: Enable vSwitch RSC support in hn netvsc driver 2021-03-12 04:35:16 +00:00
route.c devctl: add ADDR_ADD and ADDR_DEL devctl event for IFNET 2021-06-23 10:26:56 -06:00
route.h Re-enable network ioctls in capability mode 2021-04-23 09:22:49 -04:00
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 2021-07-23 10:47:13 -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 2021-02-11 16:12:29 +01:00
vnet.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00