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Florian Westphal fc38c249c6 netfilter: nf_conntrack: fix crash due to removal of uninitialised entry 
[ Upstream commit 2d72afb340 ]

A crash in conntrack was reported while trying to unlink the conntrack
entry from the hash bucket list:
    [exception RIP: __nf_ct_delete_from_lists+172]
    [..]
 #7 [ff539b5a2b043aa0] nf_ct_delete at ffffffffc124d421 [nf_conntrack]
 #8 [ff539b5a2b043ad0] nf_ct_gc_expired at ffffffffc124d999 [nf_conntrack]
 #9 [ff539b5a2b043ae0] __nf_conntrack_find_get at ffffffffc124efbc [nf_conntrack]
    [..]

The nf_conn struct is marked as allocated from slab but appears to be in
a partially initialised state:

 ct hlist pointer is garbage; looks like the ct hash value
 (hence crash).
 ct->status is equal to IPS_CONFIRMED|IPS_DYING, which is expected
 ct->timeout is 30000 (=30s), which is unexpected.

Everything else looks like normal udp conntrack entry.  If we ignore
ct->status and pretend its 0, the entry matches those that are newly
allocated but not yet inserted into the hash:
  - ct hlist pointers are overloaded and store/cache the raw tuple hash
  - ct->timeout matches the relative time expected for a new udp flow
    rather than the absolute 'jiffies' value.

If it were not for the presence of IPS_CONFIRMED,
__nf_conntrack_find_get() would have skipped the entry.

Theory is that we did hit following race:

cpu x 			cpu y			cpu z
 found entry E		found entry E
 E is expired		<preemption>
 nf_ct_delete()
 return E to rcu slab
					init_conntrack
					E is re-inited,
					ct->status set to 0
					reply tuplehash hnnode.pprev
					stores hash value.

cpu y found E right before it was deleted on cpu x.
E is now re-inited on cpu z.  cpu y was preempted before
checking for expiry and/or confirm bit.

					->refcnt set to 1
					E now owned by skb
					->timeout set to 30000

If cpu y were to resume now, it would observe E as
expired but would skip E due to missing CONFIRMED bit.

					nf_conntrack_confirm gets called
					sets: ct->status |= CONFIRMED
					This is wrong: E is not yet added
					to hashtable.

cpu y resumes, it observes E as expired but CONFIRMED:
			<resumes>
			nf_ct_expired()
			 -> yes (ct->timeout is 30s)
			confirmed bit set.

cpu y will try to delete E from the hashtable:
			nf_ct_delete() -> set DYING bit
			__nf_ct_delete_from_lists

Even this scenario doesn't guarantee a crash:
cpu z still holds the table bucket lock(s) so y blocks:

			wait for spinlock held by z

					CONFIRMED is set but there is no
					guarantee ct will be added to hash:
					"chaintoolong" or "clash resolution"
					logic both skip the insert step.
					reply hnnode.pprev still stores the
					hash value.

					unlocks spinlock
					return NF_DROP
			<unblocks, then
			 crashes on hlist_nulls_del_rcu pprev>

In case CPU z does insert the entry into the hashtable, cpu y will unlink
E again right away but no crash occurs.

Without 'cpu y' race, 'garbage' hlist is of no consequence:
ct refcnt remains at 1, eventually skb will be free'd and E gets
destroyed via: nf_conntrack_put -> nf_conntrack_destroy -> nf_ct_destroy.

To resolve this, move the IPS_CONFIRMED assignment after the table
insertion but before the unlock.

Pablo points out that the confirm-bit-store could be reordered to happen
before hlist add resp. the timeout fixup, so switch to set_bit and
before_atomic memory barrier to prevent this.

It doesn't matter if other CPUs can observe a newly inserted entry right
before the CONFIRMED bit was set:

Such event cannot be distinguished from above "E is the old incarnation"
case: the entry will be skipped.

Also change nf_ct_should_gc() to first check the confirmed bit.

The gc sequence is:
 1. Check if entry has expired, if not skip to next entry
 2. Obtain a reference to the expired entry.
 3. Call nf_ct_should_gc() to double-check step 1.

nf_ct_should_gc() is thus called only for entries that already failed an
expiry check. After this patch, once the confirmed bit check passes
ct->timeout has been altered to reflect the absolute 'best before' date
instead of a relative time.  Step 3 will therefore not remove the entry.

Without this change to nf_ct_should_gc() we could still get this sequence:

 1. Check if entry has expired.
 2. Obtain a reference.
 3. Call nf_ct_should_gc() to double-check step 1:
    4 - entry is still observed as expired
    5 - meanwhile, ct->timeout is corrected to absolute value on other CPU
      and confirm bit gets set
    6 - confirm bit is seen
    7 - valid entry is removed again

First do check 6), then 4) so the gc expiry check always picks up either
confirmed bit unset (entry gets skipped) or expiry re-check failure for
re-inited conntrack objects.

This change cannot be backported to releases before 5.19. Without
commit 8a75a2c174 ("netfilter: conntrack: remove unconfirmed list")
|= IPS_CONFIRMED line cannot be moved without further changes.

Cc: Razvan Cojocaru <rzvncj@gmail.com>
Link: https://lore.kernel.org/netfilter-devel/20250627142758.25664-1-fw@strlen.de/
Link: https://lore.kernel.org/netfilter-devel/4239da15-83ff-4ca4-939d-faef283471bb@gmail.com/
Fixes: 1397af5bfd ("netfilter: conntrack: remove the percpu dying list")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-07-24 08:56:33 +02:00
..
9p netfs, 9p: Implement helpers for new write code 2024-05-01 18:07:37 +01:00
bluetooth Bluetooth: hci_core: add missing braces when using macro parameters 2025-07-24 08:56:33 +02:00
caif net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
iucv s390/iucv: Correct spelling in iucv.h 2024-08-26 09:37:22 -07:00
libeth libeth: add Tx buffer completion helpers 2024-09-09 13:15:37 -07:00
mana net: mana: Support holes in device list reply msg 2025-03-28 22:03:28 +01:00
netfilter netfilter: nf_conntrack: fix crash due to removal of uninitialised entry 2025-07-24 08:56:33 +02:00
netns xfrm: Add an inbound percpu state cache. 2025-02-08 09:58:00 +01:00
nfc NFC: Correct spelling in headers 2024-08-26 09:37:23 -07:00
page_pool page_pool: Track DMA-mapped pages and unmap them when destroying the pool 2025-06-19 15:31:42 +02:00
phonet net: ioctl: Use kernel memory on protocol ioctl callbacks 2023-06-15 22:33:26 -07:00
sctp sctp: detect and prevent references to a freed transport in sendmsg 2025-04-20 10:15:50 +02:00
tc_act net/sched: Retire ipt action 2024-01-02 12:41:16 +00:00
6lowpan.h 6lowpan: Replace zero-length array with flexible-array member 2020-02-28 14:51:30 +01:00
act_api.h net/sched: Add helper macros with module names 2024-02-02 10:57:55 -08:00
addrconf.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
af_ieee802154.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
af_rxrpc.h rxrpc, afs: Allow afs to pin rxrpc_peer objects 2023-12-24 15:22:50 +00:00
af_unix.h af_unix: Remove U_LOCK_GC_LISTENER. 2024-06-25 11:10:18 +02:00
af_vsock.h vsock: fix vsock_proto declaration 2025-07-17 18:37:05 +02:00
ah.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amt.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
arp.h neighbour: switch to standard rcu, instead of rcu_bh 2023-03-21 21:32:18 -07:00
atmclip.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ax25.h ax25: rcu protect dev->ax25_ptr 2025-02-08 09:57:10 +01:00
ax88796.h ax88796: Fix some typo in a comment 2022-08-09 22:14:02 -07:00
bareudp.h bareudp: Move definition of struct bareudp_conf to bareudp.c 2021-12-13 12:34:09 +00:00
bond_3ad.h bonding: Correct spelling in headers 2024-08-26 09:37:22 -07:00
bond_alb.h bonding: Correct spelling in headers 2024-08-26 09:37:22 -07:00
bond_options.h bonding: add ns target multicast address to slave device 2024-11-14 11:16:28 +01:00
bonding.h bonding: change ipsec_lock from spin lock to mutex 2024-08-27 13:11:37 -07:00
bpf_sk_storage.h bpf: struct sock is declared twice in bpf_sk_storage header 2021-03-26 17:43:55 +01:00
busy_poll.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-08-29 11:49:10 -07:00
calipso.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cfg80211-wext.h wifi: cfg80211: Avoid clashing function prototypes 2022-11-16 11:31:47 +02:00
cfg80211.h wifi: cfg80211: remove scan request n_channels counted_by 2025-07-24 08:56:31 +02:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-03-06 21:01:26 +01:00
checksum.h net: Fix checksum update for ILA adj-transport 2025-06-27 11:11:40 +01:00
cipso_ipv4.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cls_cgroup.h bpf: Allow to retrieve cgroup v1 classid from v2 hooks 2020-03-27 19:40:38 -07:00
codel.h codel: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
codel_impl.h codel: remove unnecessary sock.h include 2021-12-22 15:03:47 -08:00
codel_qdisc.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
compat.h net: copy from user before calling __get_compat_msghdr 2022-07-24 18:39:17 -06:00
datalink.h net: datalink: Remove unused declarations 2023-07-27 17:17:32 -07:00
dcbevent.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
dcbnl.h net: dcb: add helper functions to retrieve PCP and DSCP rewrite maps 2023-01-20 09:33:22 +00:00
devlink.h devlink: Constify the 'table_ops' parameter of devl_dpipe_table_register() 2024-06-05 10:24:57 +01:00
dropreason-core.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
dropreason.h net: openvswitch: add last-action drop reason 2023-08-14 08:01:06 +01:00
dsa.h net: dsa: provide a software untagging function on RX for VLAN-aware bridges 2024-08-16 09:59:32 +01:00
dsa_stubs.h net: dsa: Use conduit and user terms 2023-10-24 13:08:14 -07:00
dscp.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
dsfield.h ipv6: Annotate bitwise IPv6 dsfield pointer cast 2019-12-16 16:09:44 -08:00
dst.h include: net: add static inline dst_dev_overhead() to dst.h 2025-02-21 14:01:38 +01:00
dst_cache.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
dst_metadata.h net: Silence false field-spanning write warning in metadata_dst memcpy 2024-08-20 15:22:17 -07:00
dst_ops.h net: fix __dst_negative_advice() race 2024-05-29 17:34:49 -07:00
eee.h net: add helpers for EEE configuration 2024-03-05 19:21:17 -08:00
erspan.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
esp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
espintcp.h inet: preserve const qualifier in inet_csk() 2024-04-01 21:27:08 -07:00
ethoc.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
failover.h net: failover: add net device refcount tracker 2021-12-06 16:06:02 -08:00
fib_notifier.h ipv6: Remove old route notifications and convert listeners 2019-12-24 22:37:30 -08:00
fib_rules.h fib: remove unnecessary input parameters in fib_default_rule_add 2024-01-03 16:42:48 -08:00
firewire.h firewire: net: Make use of get_unaligned_be48(), put_unaligned_be48() 2022-07-28 22:21:54 -07:00
flow.h inet: shrink struct flowi_common 2023-11-02 09:31:02 +01:00
flow_dissector.h flow_dissector: cleanup FLOW_DISSECTOR_KEY_ENC_FLAGS 2024-07-15 09:14:39 -07:00
flow_offload.h flow_offload: add encapsulation control flag helpers 2024-06-12 17:56:00 -07:00
fou.h bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs 2023-04-12 16:40:39 -07:00
fq.h net: fq: Remove unused typedef fq_flow_get_default_t 2023-08-08 15:58:23 -07:00
fq_impl.h wifi: mac80211: add support for restricting netdev features per vif 2022-12-01 15:09:10 +01:00
garp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
gen_stats.h net: sched: Remove Qdisc::running sequence counter 2021-10-18 12:54:41 +01:00
genetlink.h genetlink: hold RCU in genlmsg_mcast() 2024-10-15 17:52:58 -07:00
geneve.h net: geneve: fix array of flexible structures warnings 2022-10-31 10:43:04 +00:00
gre.h ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
gro.h net: allow small head cache usage with large MAX_SKB_FRAGS values 2025-02-27 04:30:18 -08:00
gro_cells.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gso.h net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
gtp.h gtp: properly parse extension headers 2024-05-07 01:35:55 +02:00
gue.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
handshake.h net/handshake: Add helpers for parsing incoming TLS Alerts 2023-07-28 14:07:59 -07:00
hotdata.h net: move sysctl_mem_pcpu_rsv to net_hotdata 2024-04-30 18:46:52 -07:00
hwbm.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
icmp.h ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages 2021-06-28 14:29:45 -07:00
ieee8021q.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
ieee80211_radiotap.h wireless fixes for v6.12-rc5 2024-10-25 10:44:41 +01:00
ieee802154_netdev.h mac802154: Handle association requests from peers 2023-11-20 11:43:03 +01:00
if_inet6.h ipv6: anycast: complete RCU handling of struct ifacaddr6 2024-02-26 18:40:34 -08:00
ife.h net: ife: drop include of module.h from net/ife.h 2019-04-22 21:50:53 -07:00
inet6_connection_sock.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
inet6_hashtables.h inet6: constify 'struct net' parameter of various lookup helpers 2024-08-05 16:27:26 -07:00
inet_common.h net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
inet_connection_sock.h tcp/dccp: allow a connection when sk_max_ack_backlog is zero 2025-01-17 13:40:37 +01:00
inet_dscp.h ipv6: Define dscp_t and stop taking ECN bits into account in fib6-rules 2022-02-07 20:12:45 -08:00
inet_ecn.h net: add skb_get_dsfield() helper 2021-10-15 11:33:08 +01:00
inet_frag.h net: Rename mono_delivery_time to tstamp_type for scalabilty 2024-05-23 14:14:23 -07:00
inet_hashtables.h inet: constify 'struct net' parameter of various lookup helpers 2024-08-05 16:22:45 -07:00
inet_sock.h inet: constify inet_sk_bound_dev_eq() net parameter 2024-08-05 16:22:45 -07:00
inet_timewait_sock.h tcp: remove volatile qualifier on tw_substate 2024-08-28 17:08:16 -07:00
inetpeer.h inetpeer: remove create argument of inet_getpeer() 2025-02-08 09:57:06 +01:00
ioam6.h net: ioam6: multicast event 2024-02-28 11:19:41 +00:00
ip.h ipv4: Convert ip_route_input() to dscp_t. 2025-03-07 18:25:29 +01:00
ip6_checksum.h net: move gro definitions to include/net/gro.h 2021-11-16 13:16:54 +00:00
ip6_fib.h ipv6: introduce dst_rt6_info() helper 2024-04-29 13:32:01 +01:00
ip6_route.h ipv6: fix source address selection with route leak 2024-07-14 07:34:16 -07:00
ip6_tunnel.h ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
ip_fib.h ipv4: Fix user space build failure due to header change 2024-09-04 16:40:33 -07:00
ip_tunnels.h ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow() 2024-10-29 11:12:25 -07:00
ip_vs.h ipvs: Correct spelling in comments 2023-04-22 01:39:41 +02:00
ipcomp.h xfrm: ipcomp: add extack to ipcomp{4,6}_init_state 2022-09-29 07:18:00 +02:00
ipconfig.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
ipv6.h ipv6: replace ipcm6_init calls with ipcm6_init_sk 2025-06-27 11:11:41 +01:00
ipv6_frag.h net: dropreason: add SKB_DROP_REASON_FRAG_REASM_TIMEOUT 2022-10-31 20:14:27 -07:00
ipv6_stubs.h ipv6: udp: constify 'struct net' parameter of socket lookups 2024-08-05 16:27:26 -07:00
iw_handler.h wifi: cfg80211: wext: Update spelling and grammar 2024-09-03 11:49:27 +02:00
kcm.h kcm: Serialise kcm_sendmsg() for the same socket. 2024-08-19 18:36:12 -07:00
l3mdev.h vrf: use RCU protection in l3mdev_l3_out() 2025-02-21 14:01:16 +01:00
lag.h net: Add lag.h, net_lag_port_dev_txable() 2018-07-11 23:10:19 -07:00
lapb.h net: lapb: increase LAPB_HEADER_LEN 2024-12-19 18:13:13 +01:00
lib80211.h wifi: lib80211: Handle const struct lib80211_crypto_ops in lib80211 2024-08-27 10:28:49 +02:00
llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-07 19:25:29 +00:00
llc_c_ac.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_ev.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_st.h llc: Constify struct llc_conn_state_trans 2024-07-15 08:51:01 -07:00
llc_conn.h llc: Check netns in llc_estab_match() and llc_listener_match(). 2023-07-20 10:46:28 +02:00
llc_if.h llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
llc_pdu.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
llc_s_ac.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_s_ev.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_s_st.h llc: Constify struct llc_sap_state_trans 2024-07-15 08:51:19 -07:00
llc_sap.h llc*.h: Remove extern from function prototypes 2013-09-21 14:01:38 -04:00
lwtunnel.h lwt: Check LWTUNNEL_XMIT_CONTINUE strictly 2023-08-18 16:05:26 +02:00
mac80211.h Revert "mac80211: Dynamically set CoDel parameters per station" 2025-06-27 11:11:33 +01:00
mac802154.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
macsec.h macsec: Enable devices to advertise whether they update sk_buff md_dst during offloads 2024-04-25 08:20:54 -07:00
mctp.h mctp: Handle error of rtnl_register_module(). 2024-10-10 15:39:35 +02:00
mctpdevice.h mctp: Pass flow data & flow release events to drivers 2021-10-29 13:23:51 +01:00
mip6.h net: mip6: Replace zero-length array with flexible-array member 2020-03-02 11:16:27 -08:00
mld.h mld: add new workqueues for process mld events 2021-03-26 15:14:56 -07:00
mpls.h net: Make mpls_entry_encode() available for generic users 2020-05-29 21:20:20 -07:00
mpls_iptunnel.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
mptcp.h mptcp: fallback to TCP after SYN+MPC drops 2024-09-11 15:57:50 -07:00
mrp.h mrp: introduce active flags to prevent UAF when applicant uninit 2022-11-18 12:14:55 +00:00
ncsi.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
ndisc.h ipv6: eliminate ndisc_ops_is_useropt() 2024-08-12 17:23:57 -07:00
neighbour.h sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
net_debug.h Rename .data.once to .data..once to fix resetting WARN*_ONCE 2024-12-05 14:03:08 +01:00
net_failover.h net: Introduce net_failover driver 2018-05-28 22:59:54 -04:00
net_namespace.h net: add dev_net_rcu() helper 2025-02-21 14:01:41 +01:00
net_ratelimit.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
net_trackers.h net: add networking namespace refcount tracker 2021-12-10 06:38:26 -08:00
netdev_queues.h net: export a helper for adding up queue stats 2025-05-18 08:24:50 +02:00
netdev_rx_queue.h memory-provider: fix compilation issue without SYSFS 2024-09-12 21:00:26 -07:00
netevent.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
netkit.h bpf, netkit: Add indirect call wrapper for fetching peer dev 2023-11-20 10:15:16 -08:00
netlabel.h netlabel: Correct spelling in netlabel.h 2024-08-26 09:37:22 -07:00
netlink.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
netmem.h page_pool: devmem support 2024-09-11 20:44:31 -07:00
netprio_cgroup.h netprio: use css ID instead of cgroup ID 2019-11-12 08:18:03 -08:00
netrom.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
nexthop.h net: nexthop: Increase weight to u16 2024-08-12 17:50:34 -07:00
nl802154.h ieee802154: Correct spelling in nl802154.h 2024-08-30 22:30:55 +02:00
nsh.h net: NSH: fix kernel-doc notation warning 2023-07-14 20:39:29 -07:00
p8022.h net: 802: Remove unused function declarations 2023-08-04 15:33:50 -07:00
pfcp.h pfcp: always set pfcp metadata 2024-04-01 10:49:28 +01:00
pie.h pie: fix kernel-doc notation warning 2023-07-14 20:39:30 -07:00
ping.h net/ipv4: ping_group_range: allow GID from 2147483648 to 4294967294 2023-06-02 09:55:22 +01:00
pkt_cls.h net: sched: refine software bypass handling in tc_run 2025-02-08 09:57:25 +01:00
pkt_sched.h net/sched: Add helper macros with module names 2024-02-02 10:57:55 -08:00
pptp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
proto_memory.h net: move sysctl_mem_pcpu_rsv to net_hotdata 2024-04-30 18:46:52 -07:00
protocol.h ipv6: move tcp_ipv6_hash_secret and udp_ipv6_hash_secret to net_hotdata 2024-03-07 21:12:43 -08:00
psample.h net: psample: fix flag being set in wrong skb 2024-07-11 18:11:31 -07:00
psnap.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
raw.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-04-06 12:01:20 -07:00
rawv6.h ipv6: raw: constify raw_v6_match() socket argument 2023-03-17 08:56:37 +00:00
red.h net: sched: Correct spelling in headers 2024-08-26 09:37:23 -07:00
regulatory.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
request_sock.h tcp: move reqsk_alloc() to inet_connection_sock.c 2024-06-06 15:18:04 +02:00
rose.h net: rose: add netdev ref tracker to 'struct rose_sock' 2022-08-01 11:59:23 -07:00
route.h ipv4: Convert ip_route_input() to dscp_t. 2025-03-07 18:25:29 +01:00
rpl.h ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv(). 2023-06-19 11:32:58 -07:00
rps.h net: rps: add rps_input_queue_head_add() helper 2024-04-01 11:28:32 +01:00
rsi_91x.h rsi: remove kernel-doc comment marker 2023-07-14 20:39:30 -07:00
rstreason.h tcp: rstreason: introduce SK_RST_REASON_TCP_DISCONNECT_WITH_DATA for active reset 2024-08-07 10:24:46 +01:00
rtnetlink.h rtnetlink: Add bulk registration helpers for rtnetlink message handlers. 2024-10-10 15:39:35 +02:00
rtnh.h net: Rename net/nexthop.h net/rtnh.h 2019-04-22 21:47:25 -07:00
sch_generic.h net_sched: Flush gso_skb list too during ->change() 2025-05-22 14:29:39 +02:00
scm.h af_unix: Add dead flag to struct scm_fp_list. 2024-05-10 18:52:45 -07:00
secure_seq.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
seg6.h ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
seg6_hmac.h ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
seg6_local.h seg6: Use nested-BH locking for seg6_bpf_srh_states. 2024-06-24 16:41:23 -07:00
selftests.h net: selftest: fix build issue if INET is disabled 2021-04-28 14:06:45 -07:00
slhc_vj.h slip: Check if rstate is initialized before uncompressing 2018-04-11 10:33:46 -04:00
smc.h net/smc: add operations to merge sndbuf with peer DMB 2024-04-30 13:24:48 +02:00
snmp.h net/tls: add skeleton of MIB statistics 2019-10-05 16:29:00 -07:00
sock.h net: Fix TOCTOU issue in sk_is_readable() 2025-06-19 15:32:29 +02:00
sock_reuseport.h net: core: annotate socks of struct sock_reuseport with __counted_by 2024-08-02 17:16:59 -07:00
Space.h net: appletalk: remove cops support 2023-10-04 11:49:20 -07:00
stp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
strparser.h strparser: Add read_sock callback 2025-02-27 04:30:19 -08:00
switchdev.h net: bridge: switchdev: Skip MDB replays of deferred events on offload 2024-02-16 09:36:37 +00:00
tc_wrapper.h Merge branch 'x86/bugs' into x86/core, to pick up pending changes before dependent patches 2024-02-14 10:49:37 +01:00
tcp.h bpf: Fix wrong copied_seq calculation 2025-02-27 04:30:19 -08:00
tcp_ao.h net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals 2024-12-14 20:03:53 +01:00
tcp_states.h tcp: Dump bound-only sockets in inet_diag. 2023-12-04 14:45:26 -08:00
tcx.h bpf: Fix too early release of tcx_entry 2024-07-08 14:07:31 -07:00
timewait_sock.h tcp: get rid of twsk_unique() 2024-05-09 20:25:55 -07:00
tipc.h flow_dissector: do not rely on implicit casts 2018-05-08 00:02:41 -04:00
tls.h bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx 2024-11-06 11:08:56 -08:00
tls_prot.h net/tls: Add TLS Alert definitions 2023-07-28 14:07:59 -07:00
tls_toe.h net/tls: rename tls_hw_* functions tls_toe_* 2019-10-04 14:07:07 -07:00
transp_v6.h inet6: Remove unused function declaration udpv6_connect() 2023-08-01 15:06:27 -07:00
tso.h net: tso: inline tso_count_descs() 2022-12-12 15:04:39 -08:00
tun_proto.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
udp.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
udp_tunnel.h ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
udplite.h udplite: fix various data-races 2023-09-14 16:16:36 +02:00
vsock_addr.h vsock: remove include/linux/vm_sockets.h file 2019-11-14 18:12:17 -08:00
vxlan.h vxlan: add support for flowlabel inherit 2023-11-16 22:33:31 +00:00
wext.h lift handling of SIOCIW... out of dev_ioctl() 2018-01-24 19:13:45 -05:00
x25.h x25: Correct spelling in x25.h 2024-08-26 09:37:23 -07:00
x25device.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xdp.h net, xdp: Correct grammar 2023-12-14 16:38:59 +01:00
xdp_priv.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
xdp_sock.h xsk: Fix race condition in AF_XDP generic RX path 2025-05-09 09:50:38 +02:00
xdp_sock_drv.h xsk: use generic DMA sync shortcut instead of a custom one 2024-05-08 08:51:20 +02:00
xfrm.h espintcp: remove encap socket caching to avoid reference leak 2025-05-29 11:03:14 +02:00
xsk_buff_pool.h xsk: Fix race condition in AF_XDP generic RX path 2025-05-09 09:50:38 +02:00