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Kuniyuki Iwashima d51e47e2ab net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. 
[ Upstream commit 0bb2f7a1ad ]

When I ran the repro [0] and waited a few seconds, I observed two
LOCKDEP splats: a warning immediately followed by a null-ptr-deref. [1]

Reproduction Steps:

  1) Mount CIFS
  2) Add an iptables rule to drop incoming FIN packets for CIFS
  3) Unmount CIFS
  4) Unload the CIFS module
  5) Remove the iptables rule

At step 3), the CIFS module calls sock_release() for the underlying
TCP socket, and it returns quickly.  However, the socket remains in
FIN_WAIT_1 because incoming FIN packets are dropped.

At this point, the module's refcnt is 0 while the socket is still
alive, so the following rmmod command succeeds.

  # ss -tan
  State      Recv-Q Send-Q Local Address:Port  Peer Address:Port
  FIN-WAIT-1 0      477        10.0.2.15:51062   10.0.0.137:445

  # lsmod | grep cifs
  cifs                 1159168  0

This highlights a discrepancy between the lifetime of the CIFS module
and the underlying TCP socket.  Even after CIFS calls sock_release()
and it returns, the TCP socket does not die immediately in order to
close the connection gracefully.

While this is generally fine, it causes an issue with LOCKDEP because
CIFS assigns a different lock class to the TCP socket's sk->sk_lock
using sock_lock_init_class_and_name().

Once an incoming packet is processed for the socket or a timer fires,
sk->sk_lock is acquired.

Then, LOCKDEP checks the lock context in check_wait_context(), where
hlock_class() is called to retrieve the lock class.  However, since
the module has already been unloaded, hlock_class() logs a warning
and returns NULL, triggering the null-ptr-deref.

If LOCKDEP is enabled, we must ensure that a module calling
sock_lock_init_class_and_name() (CIFS, NFS, etc) cannot be unloaded
while such a socket is still alive to prevent this issue.

Let's hold the module reference in sock_lock_init_class_and_name()
and release it when the socket is freed in sk_prot_free().

Note that sock_lock_init() clears sk->sk_owner for svc_create_socket()
that calls sock_lock_init_class_and_name() for a listening socket,
which clones a socket by sk_clone_lock() without GFP_ZERO.

[0]:
CIFS_SERVER="10.0.0.137"
CIFS_PATH="//${CIFS_SERVER}/Users/Administrator/Desktop/CIFS_TEST"
DEV="enp0s3"
CRED="/root/WindowsCredential.txt"

MNT=$(mktemp -d /tmp/XXXXXX)
mount -t cifs ${CIFS_PATH} ${MNT} -o vers=3.0,credentials=${CRED},cache=none,echo_interval=1

iptables -A INPUT -s ${CIFS_SERVER} -j DROP

for i in $(seq 10);
do
    umount ${MNT}
    rmmod cifs
    sleep 1
done

rm -r ${MNT}

iptables -D INPUT -s ${CIFS_SERVER} -j DROP

[1]:
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 10 PID: 0 at kernel/locking/lockdep.c:234 hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)
Modules linked in: cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]
CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Not tainted 6.14.0 #36
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)
...
Call Trace:
 <IRQ>
 __lock_acquire (kernel/locking/lockdep.c:4853 kernel/locking/lockdep.c:5178)
 lock_acquire (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853 kernel/locking/lockdep.c:5816)
 _raw_spin_lock_nested (kernel/locking/spinlock.c:379)
 tcp_v4_rcv (./include/linux/skbuff.h:1678 ./include/net/tcp.h:2547 net/ipv4/tcp_ipv4.c:2350)
...

BUG: kernel NULL pointer dereference, address: 00000000000000c4
 PF: supervisor read access in kernel mode
 PF: error_code(0x0000) - not-present page
PGD 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Tainted: G        W          6.14.0 #36
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:__lock_acquire (kernel/locking/lockdep.c:4852 kernel/locking/lockdep.c:5178)
Code: 15 41 09 c7 41 8b 44 24 20 25 ff 1f 00 00 41 09 c7 8b 84 24 a0 00 00 00 45 89 7c 24 20 41 89 44 24 24 e8 e1 bc ff ff 4c 89 e7 <44> 0f b6 b8 c4 00 00 00 e8 d1 bc ff ff 0f b6 80 c5 00 00 00 88 44
RSP: 0018:ffa0000000468a10 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ff1100010091cc38 RCX: 0000000000000027
RDX: ff1100081f09ca48 RSI: 0000000000000001 RDI: ff1100010091cc88
RBP: ff1100010091c200 R08: ff1100083fe6e228 R09: 00000000ffffbfff
R10: ff1100081eca0000 R11: ff1100083fe10dc0 R12: ff1100010091cc88
R13: 0000000000000001 R14: 0000000000000000 R15: 00000000000424b1
FS:  0000000000000000(0000) GS:ff1100081f080000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000c4 CR3: 0000000002c4a003 CR4: 0000000000771ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <IRQ>
 lock_acquire (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853 kernel/locking/lockdep.c:5816)
 _raw_spin_lock_nested (kernel/locking/spinlock.c:379)
 tcp_v4_rcv (./include/linux/skbuff.h:1678 ./include/net/tcp.h:2547 net/ipv4/tcp_ipv4.c:2350)
 ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1))
 ip_local_deliver_finish (./include/linux/rcupdate.h:878 net/ipv4/ip_input.c:234)
 ip_sublist_rcv_finish (net/ipv4/ip_input.c:576)
 ip_list_rcv_finish (net/ipv4/ip_input.c:628)
 ip_list_rcv (net/ipv4/ip_input.c:670)
 __netif_receive_skb_list_core (net/core/dev.c:5939 net/core/dev.c:5986)
 netif_receive_skb_list_internal (net/core/dev.c:6040 net/core/dev.c:6129)
 napi_complete_done (./include/linux/list.h:37 ./include/net/gro.h:519 ./include/net/gro.h:514 net/core/dev.c:6496)
 e1000_clean (drivers/net/ethernet/intel/e1000/e1000_main.c:3815)
 __napi_poll.constprop.0 (net/core/dev.c:7191)
 net_rx_action (net/core/dev.c:7262 net/core/dev.c:7382)
 handle_softirqs (kernel/softirq.c:561)
 __irq_exit_rcu (kernel/softirq.c:596 kernel/softirq.c:435 kernel/softirq.c:662)
 irq_exit_rcu (kernel/softirq.c:680)
 common_interrupt (arch/x86/kernel/irq.c:280 (discriminator 14))
  </IRQ>
 <TASK>
 asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:744)
Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d c3 2b 15 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffa00000000ffee8 EFLAGS: 00000202
RAX: 000000000000640b RBX: ff1100010091c200 RCX: 0000000000061aa4
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812f30c5
RBP: 000000000000000a R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 ? do_idle (kernel/sched/idle.c:186 kernel/sched/idle.c:325)
 default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118)
 do_idle (kernel/sched/idle.c:186 kernel/sched/idle.c:325)
 cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1))
 start_secondary (arch/x86/kernel/smpboot.c:315)
 common_startup_64 (arch/x86/kernel/head_64.S:421)
 </TASK>
Modules linked in: cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]
CR2: 00000000000000c4

Fixes: ed07536ed6 ("[PATCH] lockdep: annotate nfs/nfsd in-kernel sockets")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20250407163313.22682-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[ no ns_tracker and sk_user_frags fields ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-02 13:38:59 +02:00
..
9p 9p: Add client parameter to p9_req_put() 2022-08-17 14:24:07 +02:00
bluetooth Bluetooth: SCO: Fix UAF on sco_sock_timeout 2025-05-02 07:44:25 +02:00
caif net: remove the caif_hsi driver 2021-07-01 13:19:48 -07:00
iucv net/af_iucv: don't track individual TX skbs for TRANS_HIPER sockets 2021-01-28 20:36:21 -08:00
netfilter netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() 2025-07-17 18:30:53 +02:00
netns Namespaceify mtu_expires sysctl 2025-03-13 12:50:43 +01:00
nfc NFC: add NCI_UNREG flag to eliminate the race 2021-11-25 09:48:40 +01:00
phonet treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
sctp sctp: detect and prevent references to a freed transport in sendmsg 2025-05-02 07:44:04 +02:00
tc_act net_sched: act_ctinfo: use atomic64_t for three counters 2025-08-28 16:24:08 +02:00
6lowpan.h 6lowpan: Replace zero-length array with flexible-array member 2020-02-28 14:51:30 +01:00
act_api.h net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
addrconf.h ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr 2024-04-17 11:15:14 +02:00
af_ieee802154.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
af_rxrpc.h afs: Don't truncate iter during data fetch 2021-04-23 10:17:26 +01:00
af_unix.h af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc(). 2024-05-02 16:24:47 +02:00
af_vsock.h vsock: each transport cycles only on its own sockets 2022-03-23 09:16:41 +01:00
ah.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
arp.h ipv4: Invalidate neighbour for broadcast address upon address addition 2022-04-13 20:59:05 +02:00
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: fix reference count leaks of ax25_dev 2022-04-20 09:34:22 +02:00
ax88796.h ax88796: export ax_NS8390_init() hook 2021-08-03 13:05:25 +01:00
bareudp.h bareudp: Reverted support to enable & disable rx metadata collection 2020-07-21 18:30:47 -07:00
bond_3ad.h bonding: update LACP activity flag after setting lacp_active 2025-08-28 16:24:38 +02:00
bond_alb.h bonding (gcc13): synchronize bond_{a,t}lb_xmit() types 2023-06-14 11:13:00 +02:00
bond_options.h Bonding: add arp_missed_max option 2023-06-05 09:21:19 +02:00
bonding.h bonding: fix macvlan over alb bond support 2023-08-30 16:18:15 +02:00
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 net: busy-poll: use ktime_get_ns() instead of local_clock() 2024-09-04 13:23:40 +02:00
calipso.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
cfg80211-wext.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cfg80211.h wifi: cfg80211: Fix interface type validation 2025-08-28 16:24:20 +02:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-04-10 16:18:39 +02:00
checksum.h net: Fix checksum update for ILA adj-transport 2025-06-27 11:05:38 +01:00
cipso_ipv4.h cipso: Remove unused inline functions 2020-07-15 07:45:24 -07:00
cls_cgroup.h bpf: Allow to retrieve cgroup v1 classid from v2 hooks 2020-03-27 19:40:38 -07:00
codel.h codel: split into multiple files 2016-04-25 16:44:27 -04:00
codel_impl.h codel: split into multiple files 2016-04-25 16:44:27 -04:00
codel_qdisc.h net_sched: fq_codel: cache skb->truesize into skb->cb 2016-06-25 12:19:35 -04:00
compat.h net/ipv4/ipv6: Replace one-element arraya with flexible-array members 2021-08-05 11:46:42 +01:00
datalink.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dcbevent.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
dcbnl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
devlink.h devlink: Use xarray to store devlink instances 2021-08-14 13:59:10 +01:00
dsa.h net: dsa: introduce preferred_default_local_cpu_port and use on MT7530 2024-04-27 17:05:29 +02:00
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 2025-03-13 12:50:58 +01:00
dst_cache.h wireguard: device: reset peer src endpoint when netns exits 2021-12-08 09:04:46 +01:00
dst_metadata.h net: fix a memleak when uncloning an skb dst and its metadata 2022-02-16 12:56:30 +01:00
dst_ops.h net: fix __dst_negative_advice() race 2024-06-16 13:39:59 +02:00
erspan.h erspan: Add type I version 0 support. 2020-05-05 13:23:29 -07:00
esp.h esp: limit skb_page_frag_refill use to a single page 2022-04-27 14:38:52 +02:00
espintcp.h xfrm: espintcp: save and call old ->sk_destruct 2020-04-20 07:34:16 +02:00
ethoc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
failover.h net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
fib_notifier.h ipv6: Remove old route notifications and convert listeners 2019-12-24 22:37:30 -08:00
fib_rules.h ipv6: fix memory leak in fib6_rule_suppress 2021-12-08 09:04:43 +01:00
firewire.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
flow.h net: Add l3mdev index to flow struct and avoid oif reset for port devices 2024-10-17 15:11:57 +02:00
flow_dissector.h net: extract port range fields from fl_flow_key 2025-03-13 12:50:52 +01:00
flow_offload.h net: extract port range fields from fl_flow_key 2025-03-13 12:50:52 +01:00
fou.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fq.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
fq_impl.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
garp.h treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
gen_stats.h net_sched: extend packet counter to 64bit 2019-11-05 18:20:55 -08:00
genetlink.h genetlink: hold RCU in genlmsg_mcast() 2024-11-01 01:52:34 +01:00
geneve.h net: Move the definition of the default Geneve udp port to public header file 2019-03-22 12:09:31 -07:00
gre.h ip_gre: add csum offload support for gre header 2021-01-29 20:39:14 -08:00
gro.h gro: add combined call_gro_receive() + INDIRECT_CALL_INET() helper 2021-03-18 19:51:12 -07:00
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
gtp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gue.h GUE: Fix a typo 2020-06-22 21:12:44 -07:00
hwbm.h net: hwbm: if CONFIG_NET_HWBM unset, make stub functions static 2019-10-25 16:24:32 -07:00
icmp.h ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages 2021-06-28 14:29:45 -07:00
ieee80211_radiotap.h mac80211: Use flex-array for radiotap header bitmap 2021-08-13 09:58:25 +02:00
ieee802154_netdev.h net: ieee802154: return -EINVAL for unknown addr type 2022-10-26 12:35:54 +02:00
if_inet6.h net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX 2023-12-20 15:17:34 +01:00
ife.h net: ife: drop include of module.h from net/ife.h 2019-04-22 21:50:53 -07:00
ila.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inet6_connection_sock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inet6_hashtables.h net: remove duplicate reuseport_lookup functions 2024-06-16 13:39:21 +02:00
inet_common.h bpf: Allow rewriting to ports under ip_unprivileged_port_start 2021-01-27 18:18:15 -08:00
inet_connection_sock.h tcp/dccp: allow a connection when sk_max_ack_backlog is zero 2025-01-23 17:15:49 +01:00
inet_ecn.h inet_ecn: Use csum16_add() helper for IP_ECN_set_* helpers 2020-12-14 18:38:58 -08:00
inet_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 11:05:35 +01:00
inet_hashtables.h net: remove duplicate reuseport_lookup functions 2024-06-16 13:39:21 +02:00
inet_sock.h net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set 2022-08-17 14:23:36 +02:00
inet_timewait_sock.h tcp: honor SO_PRIORITY in TIME_WAIT state 2019-09-27 12:05:02 +02:00
inetpeer.h net: ipv4: use a dedicated counter for icmp_v4 redirect packets 2019-02-08 21:50:15 -08:00
ioam6.h ipv6: ioam: Support for IOAM injection with lwtunnels 2021-07-21 08:14:33 -07:00
ip.h ipv4: ignore dst hint for multipath routes 2023-09-19 12:22:58 +02:00
ip6_checksum.h tcp: remove indirect calls for icsk->icsk_af_ops->send_check 2020-06-20 17:47:53 -07:00
ip6_fib.h net: fib: avoid warn splat in flow dissector 2023-09-19 12:22:58 +02:00
ip6_route.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-08-05 15:08:47 -07:00
ip6_tunnel.h ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode 2022-05-09 09:14:36 +02:00
ip_fib.h ipv4/fib: send notify when delete source address routes 2023-10-25 11:59:00 +02:00
ip_tunnels.h ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow() 2024-11-08 16:25:52 +01:00
ip_vs.h ipvs: Update width of source for ip_vs_sync_conn_options 2023-05-24 17:36:46 +01:00
ipcomp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ipconfig.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ipv6.h ipv6: Fix signed integer overflow in __ip6_append_data 2025-04-10 14:31:48 +02:00
ipv6_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-27 11:05:35 +01:00
ipv6_stubs.h bpf: Derive source IP addr via bpf_*_fib_lookup() 2024-03-06 14:38:50 +00:00
iw_handler.h net: Spelling s/stucture/structure/ 2018-03-27 09:51:23 +02:00
kcm.h kcm: Serialise kcm_sendmsg() for the same socket. 2024-09-04 13:23:32 +02:00
l3mdev.h vrf: use RCU protection in l3mdev_l3_out() 2025-03-13 12:50:35 +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 18:07:20 +01:00
lib80211.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-18 19:17:10 +01:00
llc_c_ac.h net: LLC: Convert timers to use timer_setup() 2017-10-25 12:06:25 +09:00
llc_c_ev.h llc*.h: Remove extern from function prototypes 2013-09-21 14:01:38 -04:00
llc_c_st.h llc: Make llc_conn_ev_qfyr_t function pointer arrays const 2014-12-10 15:21:24 -05:00
llc_conn.h llc: fix sk_buff leak in llc_conn_service() 2019-10-08 13:23:05 -07:00
llc_if.h llc*.h: Remove extern from function prototypes 2013-09-21 14:01:38 -04:00
llc_pdu.h llc: Drop support for ETH_P_TR_802_2. 2024-02-23 08:54:27 +01:00
llc_s_ac.h llc*.h: Remove extern from function prototypes 2013-09-21 14:01:38 -04:00
llc_s_ev.h llc*.h: Remove extern from function prototypes 2013-09-21 14:01:38 -04:00
llc_s_st.h llc: Make llc_sap_action_t function pointer arrays const 2014-12-10 15:21:24 -05:00
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 2023-09-19 12:22:34 +02:00
mac80211.h wifi: mac80211: don't complete management TX on SAE commit 2025-08-28 16:24:21 +02:00
mac802154.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
macsec.h net: macsec: indicate next pn update when offloading 2023-10-19 23:05:34 +02:00
mctp.h mctp: Handle error of rtnl_register_module(). 2024-10-17 15:11:57 +02:00
mctpdevice.h mctp: Remove the repeated declaration 2021-08-25 11:23:14 +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: mpls: Replace zero-length array with flexible-array member 2020-02-28 12:08:37 -08:00
mptcp.h mptcp: remove MPTCP 'ifdef' in TCP SYN cookies 2023-01-12 11:58:52 +01:00
mrp.h mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:14:42 +01:00
ncsi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ndisc.h ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report() 2022-03-08 19:12:33 +01:00
neighbour.h neighbour: delete neigh_lookup_nodev as not used 2023-06-21 15:59:19 +02:00
net_failover.h net: Introduce net_failover driver 2018-05-28 22:59:54 -04:00
net_namespace.h net: defer final 'struct net' free in netns dismantle 2025-05-02 07:44:23 +02:00
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
netevent.h net: ipv4: Notify about changes to ip_forward_update_priority 2018-08-01 09:52:30 -07:00
netlabel.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
netlink.h net: netlink: add the case when nlh is NULL 2021-07-27 11:43:50 +01:00
netprio_cgroup.h netprio: use css ID instead of cgroup ID 2019-11-12 08:18:03 -08:00
netrom.h net: netrom: Fix error cleanup path of nr_proto_init 2019-04-11 13:59:49 -07:00
nexthop.h net: ipv4: Fix rtnexthop len when RTA_FLOW is present 2021-09-24 14:07:10 +01:00
nl802154.h net: ieee802154: handle iftypes as u32 2021-12-01 09:04:46 +01:00
nsh.h openvswitch: enable NSH support 2017-11-08 16:12:33 +09:00
p8022.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
page_pool.h page_pool: fix inconsistency for page_pool_ring_[un]lock() 2023-06-05 09:21:22 +02:00
pie.h pie: realign comment 2020-03-04 13:25:55 -08:00
ping.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pkt_cls.h sch_htb: Fix inconsistency when leaf qdisc creation fails 2021-08-30 16:33:59 -07:00
pkt_sched.h net/sched: make psched_mtu() RTNL-less safe 2023-07-23 13:47:45 +02:00
pptp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
protocol.h tcp/udp: Make early_demux back namespacified. 2022-11-10 18:15:38 +01:00
psample.h psample: Add a fwd declaration for skbuff 2021-08-09 15:34:21 -07:00
psnap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
raw.h raw: Fix a data-race around sysctl_raw_l3mdev_accept. 2022-07-21 21:24:27 +02:00
rawv6.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
red.h sch_red: fix off-by-one checks in red_check_params() 2021-03-25 17:40:43 -07:00
regulatory.h net/wireless: regulatory.h: drop duplicate word in comment 2020-07-31 09:24:23 +02:00
request_sock.h tcp: Use BPF timeout setting for SYN ACK RTO 2024-07-05 09:14:41 +02:00
rose.h proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
route.h ipv4: add RCU protection to ip4_dst_hoplimit() 2025-03-13 12:50:42 +01:00
rpl.h ipv6: rpl: Fix Route of Death. 2023-06-14 11:13:02 +02:00
rsi_91x.h Bluetooth: btrsi: add new rsi bluetooth driver 2018-03-13 18:37:02 +02:00
rtnetlink.h rtnetlink: Add bulk registration helpers for rtnetlink message handlers. 2024-10-17 15:11:57 +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 14:08:22 +02:00
scm.h scm: fix MSG_CTRUNC setting condition for SO_PASSSEC 2023-05-11 23:00:26 +09:00
secure_seq.h secure_seq: use the 64 bits of the siphash for port offset calculation 2022-05-18 10:26:53 +02:00
seg6.h udp6: Use Segment Routing Header for dest address if present 2022-01-27 11:05:05 +01:00
seg6_hmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
seg6_local.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -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: introduce CHID callback for ISM devices 2020-09-28 15:19:03 -07:00
snmp.h net/tls: add skeleton of MIB statistics 2019-10-05 16:29:00 -07:00
sock.h net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. 2025-10-02 13:38:59 +02:00
sock_reuseport.h soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-12-31 13:14:07 +01:00
Space.h wan: remove sbni/granch driver 2021-08-03 13:05:26 +01:00
stp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
strparser.h tls: rx: don't store the decryption status in socket context 2024-03-06 14:38:47 +00:00
switchdev.h net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tcp.h tcp: check skb is non-NULL in tcp_rto_delta_us() 2024-10-17 15:11:08 +02:00
tcp_states.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
timewait_sock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tipc.h flow_dissector: do not rely on implicit casts 2018-05-08 00:02:41 -04:00
tls.h tls: fix race between async notify and socket close 2024-05-25 16:20:17 +02:00
tls_toe.h net/tls: rename tls_hw_* functions tls_toe_* 2019-10-04 14:07:07 -07:00
transp_v6.h tcp: move ipv4_specific to tcp include file 2020-06-23 20:10:15 -07:00
tso.h net: tso: cache transport header length 2020-06-18 20:46:23 -07:00
tun_proto.h vxlan: factor out VXLAN-GPE next protocol 2017-08-29 15:16:52 -07:00
udp.h net: drop UFO packets in udp_rcv_segment() 2025-08-28 16:24:13 +02:00
udp_tunnel.h rxrpc: Fix ICMP/ICMP6 error handling 2022-09-15 11:30:05 +02:00
udplite.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 13:51:54 +02:00
vsock_addr.h vsock: remove include/linux/vm_sockets.h file 2019-11-14 18:12:17 -08:00
vxlan.h vxlan: Fix nexthop hash size 2023-08-11 15:13:54 +02:00
wext.h lift handling of SIOCIW... out of dev_ioctl() 2018-01-24 19:13:45 -05:00
x25.h net/x25: add new state X25_STATE_5 2019-12-09 10:28:43 -08:00
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 xdp: Allow registering memory model without rxq reference 2023-06-05 09:21:21 +02:00
xdp_priv.h page_pool: do not release pool until inflight == 0. 2019-11-16 12:39:10 -08:00
xdp_sock.h xdp: Add proper __rcu annotations to redirect map entries 2021-06-24 19:41:15 +02:00
xdp_sock_drv.h i40e: xsk: Move tmp desc array from driver to pool 2022-06-14 18:36:18 +02:00
xfrm.h xfrm: store and rely on direction to construct offload flags 2024-12-14 19:50:54 +01:00
xsk_buff_pool.h xsk: Fix unaligned descriptor validation 2023-05-11 23:00:27 +09:00