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Code Activity
Files
assoc-array-fixes
linux/net/ipv4
T
History
Daehyeon Ko e02a5b6588 ipv4: do not warn on route notification size race 
Commit 680aea08e7 ("net: ipv4: Emit notification when fib hardware
flags are changed") added asynchronous route notifications for hardware
flag changes.

fib_alias_hw_flags_set() sizes the skb with fib_nlmsg_size() and later
fills it with fib_dump_info() while holding only RCU.  With nexthop
compatibility mode enabled, a concurrent replacement can grow the group
between these independent snapshots.  fib_dump_info() can then
legitimately return -EMSGSIZE, so the warning does not prove a sizing bug.

Remove the warning.  The existing error path still frees the skb and
reports the error to listeners.

Fixes: 680aea08e7 ("net: ipv4: Emit notification when fib hardware flags are changed")
Reported-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/netdev/20261004082043.GB92032@shredder/
Suggested-by: Ido Schimmel <idosch@nvidia.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daehyeon Ko <4ncienth@gmail.com>
Link: https://patch.msgid.link/b7e203fc5867651cb67ef84aa03e082f0f76008e.1791423190.git.4ncienth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-10-08 11:32:36 -07:00
..
netfilter
netfilter: arp_tables: remove the 32bit compat interface
2026-09-07 18:48:52 +02:00
af_inet.c
ipv4: free inet_opt and ireq_opt after an RCU grace period
2026-10-05 16:21:57 -07:00
ah4.c
xfrm: ah: use skb_to_full_sk in async output callbacks
2026-05-16 10:56:14 +02:00
arp.c
net: arp: terminate device name before lookup
2026-09-23 19:00:15 -07:00
bpf_tcp_ca.c
bpf: Reject TCP_NODELAY in bpf-tcp-cc
2026-04-22 12:58:57 -07:00
cipso_ipv4.c
cipso: adjust cached option offsets when removing CIPSO
2026-10-07 19:17:52 -07:00
datagram.c
raw: annotate lockless match fields in raw_v4_match()
2026-07-23 07:46:12 -07:00
devinet.c
net: allow IFLA_INET_CONF messages when NLA_F_NESTED unset
2026-09-18 18:22:59 -07:00
esp4_offload.c
xfrm: Fix inner mode lookup in tunnel mode GSO segmentation
2025-12-04 09:54:53 +01:00
esp4.c
Merge tag 'ipsec-2026-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
2026-09-16 15:54:19 -07:00
fib_frontend.c
ipv4: fib: Define fib_table_hash_lock under CONFIG_IP_MULTIPLE_TABLES.
2026-07-07 10:51:06 +02:00
fib_lookup.h
ipv4: fib: Annotate access to struct fib_alias.fa_state.
2026-01-28 19:33:07 -08:00
fib_notifier.c
net: do not acquire rtnl in fib_seq_sum()
2024-10-11 15:35:05 -07:00
fib_rules.c
ipv4: fib: bound automatic table ID allocation
2026-09-03 16:58:32 -07:00
fib_semantics.c
ipv4: stop route notification sizing when nexthop group shrinks
2026-10-06 16:23:09 -07:00
fib_trie.c
ipv4: do not warn on route notification size race
2026-10-08 11:32:36 -07:00
fou_bpf.c
ip_tunnel: convert __be16 tunnel flags to bitmaps
2024-04-01 10:49:28 +01:00
fou_core.c
fou: reject omitted FOU_ATTR_IPPROTO on FOU_ENCAP_DIRECT
2026-09-23 18:43:08 -07:00
fou_nl.c
fou: Don't allow 0 for FOU_ATTR_IPPROTO.
2026-01-17 16:00:24 -08:00
fou_nl.h
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
gre_demux.c
gre: Count GRE packet drops
2026-04-12 12:33:33 -07:00
gre_offload.c
net: gro: rename skb_gro_header_hard()
2024-03-05 13:30:11 +01:00
icmp.c
ipv4: icmp: reject RTN_UNREACHABLE input routes in icmp_route_lookup
2026-09-15 10:20:38 +02:00
igmp_internal.h
netlink: support dumping IPv4 multicast addresses
2025-02-11 11:26:53 +01:00
igmp.c
igmp: convert struct ip_sf_list to RCU
2026-08-31 17:22:03 -07:00
inet_connection_sock.c
tcp: Skip cond_resched() in inet_csk_listen_stop() under BPF context
2026-09-10 16:58:40 -07:00
inet_diag.c
inet_diag: report delayed ack timer information
2026-03-06 16:32:26 -08:00
inet_fragment.c
inet: frags: invalidate queues before flushing them
2026-09-09 17:43:03 -07:00
inet_hashtables.c
net: remove some unused EXPORT_SYMBOL()s
2026-06-12 16:43:11 -07:00
inet_timewait_sock.c
inet: Avoid ehash lookup race in inet_twsk_hashdance_schedule()
2025-10-17 16:08:43 -07:00
inetpeer.c
inetpeer: randomize RB-tree node comparison using SipHash
2026-08-20 12:55:31 -07:00
ip_forward.c
…
ip_fragment.c
inet: frags: fix use-after-free caused by the fqdir_pre_exit() flush
2026-06-04 18:05:23 -07:00
ip_gre.c
ip_gre: Reject enabling collect metadata through changelink
2026-09-23 19:17:46 -07:00
ip_input.c
tcp: move tcp_v4_early_demux() to net/ipv4/ip_input.c
2026-03-09 18:50:24 -07:00
ip_options.c
ipv4: restrict IPOPT_SSRR and IPOPT_LSRR options
2026-06-03 18:53:14 -07:00
ip_output.c
ipv4: validate checksum_start before completing checksum
2026-10-08 11:03:47 -07:00
ip_sockglue.c
net: remove addr_len argument of recvmsg() handlers
2026-03-02 18:17:17 -08:00
ip_tunnel_core.c
net: ip_tunnel: initialize options_len before referencing options
2026-09-15 17:34:31 -07:00
ip_tunnel.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-08-18 10:42:41 -07:00
ip_vti.c
net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink
2026-06-17 16:01:52 -07:00
ipcomp.c
xfrm: add extack to xfrm_init_state
2026-06-04 12:22:35 +02:00
ipconfig.c
net: ipconfig: bound DHCP option construction
2026-09-24 10:57:51 +02:00
ipip.c
ipip: fix skb leak in collect_md mode when metadata_dst allocation fails
2026-08-22 13:03:10 -07:00
ipmr_base.c
ipmr: account multicast table and route memory
2026-09-10 08:48:44 -07:00
ipmr.c
ipmr: account multicast table and route memory
2026-09-10 08:48:44 -07:00
Kconfig
net/tcp: Remove tcp_sigpool
2026-04-30 09:38:56 +02:00
Makefile
netfilter: add option for GCOV profiling
2026-05-24 22:55:47 +02:00
metrics.c
net: remove EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() macros
2026-03-29 11:21:22 -07:00
netfilter.c
net: Add SPDX ids to some source files
2026-03-09 18:32:45 -07:00
netlink.c
…
nexthop.c
nexthop: Initialize extack in remove_nh_grp_entry()
2026-09-04 15:17:41 -07:00
ping.c
Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2026-04-14 18:36:10 -07:00
proc.c
udp: Remove UDP-Lite SNMP stats.
2026-03-13 18:57:44 -07:00
protocol.c
…
raw_diag.c
inet_diag: change inet_diag_bc_sk() first argument
2025-08-29 19:29:24 -07:00
raw.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-07-23 14:07:40 -07:00
route.c
ipv4: stop exception dump when nexthop group shrinks
2026-10-06 16:23:09 -07:00
syncookies.c
tcp: rehash onto different local ECMP path on retransmit timeout
2026-06-15 15:57:31 -07:00
sysctl_net_ipv4.c
tcp: do not let tcp_rmem be set below 4096
2026-09-15 15:21:17 +02:00
tcp_ao.c
tcp: fix AO info use-after-free in tcp_ao_connect_init()
2026-08-27 12:10:55 +02:00
tcp_bbr.c
tcp_bbr: fix SPDX-License-Identifier to be GPL-2.0 OR BSD-3-Clause
2026-06-01 16:51:08 -07:00
tcp_bic.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp_bpf.c
bpf, sockmap: Fix sk_redir use-after-free in send verdict
2026-08-01 18:24:58 +02:00
tcp_cdg.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp_cong.c
tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION)
2026-08-28 16:09:02 -07:00
tcp_cubic.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp_dctcp.c
tcp: fix use-after-free in do_tcp_getsockopt(TCP_CC_INFO)
2026-08-28 16:09:02 -07:00
tcp_dctcp.h
net: Add SPDX ids to some source files
2026-03-09 18:32:45 -07:00
tcp_diag.c
inet_diag: report delayed ack timer information
2026-03-06 16:32:26 -08:00
tcp_fastopen.c
net: remove EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() macros
2026-03-29 11:21:22 -07:00
tcp_highspeed.c
…
tcp_htcp.c
tcp: Use clamp() in htcp_alpha_update()
2024-08-06 12:16:25 -07:00
tcp_hybla.c
…
tcp_illinois.c
…
tcp_input.c
tcp: refresh TS.Recent for accepted old ACKs
2026-09-30 08:02:39 +01:00
tcp_ipv4.c
ipv4: free inet_opt and ireq_opt after an RCU grace period
2026-10-05 16:21:57 -07:00
tcp_lp.c
net: tcp_lp: fix kernel-doc warnings and update outdated reference links
2025-10-28 17:52:44 -07:00
tcp_metrics.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp_minisocks.c
tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION)
2026-08-28 16:09:02 -07:00
tcp_nv.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp_offload.c
net: gro: Fix nesting of TCP GSO SKBs in skb_gro_receive_list()
2026-09-03 12:20:38 +02:00
tcp_output.c
tcp: fix use-after-free of retransmit_skb_hint in tcp_send_synack()
2026-09-24 09:17:10 -07:00
tcp_plb.c
tcp: rehash onto different local ECMP path on retransmit timeout
2026-06-15 15:57:31 -07:00
tcp_recovery.c
tcp: move tcp_rack_advance() to tcp_input.c
2026-01-28 19:31:51 -08:00
tcp_scalable.c
…
tcp_timer.c
tcp: use GFP_ATOMIC in tcp_send_active_reset()
2026-08-28 15:35:38 -07:00
tcp_ulp.c
net: psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()
2026-09-16 19:18:24 -07:00
tcp_vegas.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp_vegas.h
tcp: add cwnd_event_tx_start to tcp_congestion_ops
2026-03-24 21:00:38 -07:00
tcp_veno.c
tcp: add cwnd_event_tx_start to tcp_congestion_ops
2026-03-24 21:00:38 -07:00
tcp_westwood.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp_yeah.c
tcp: annotate data-races around tp->snd_ssthresh
2026-04-18 11:10:12 -07:00
tcp.c
tcp: reject net_iov in zerocopy receive mapping hints
2026-10-02 13:05:20 -07:00
tunnel4.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00
udp_bpf.c
sockmap: Fix use-after-free in udp_bpf_recvmsg()
2026-06-14 21:30:20 -07:00
udp_diag.c
udp: Don't pass udptable to IPv4 socket lookup functions.
2026-03-13 18:57:46 -07:00
udp_offload.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-08-06 11:53:47 -07:00
udp_tunnel_core.c
udp: Set length in UDP header to 0 for big GSO packets
2026-07-22 13:47:02 +02:00
udp_tunnel_nic.c
net: udp_tunnel: fix memory leak in udp_tunnel_nic_unregister()
2026-07-28 13:32:34 +02:00
udp_tunnel_stub.c
…
udp.c
udp: remove a disconnected socket from the 4-tuple hash table
2026-09-22 10:57:53 +02:00
xfrm4_input.c
xfrm: Fix dev use-after-free in xfrm async resumption
2026-06-12 08:39:59 +02:00
xfrm4_output.c
ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]
2025-07-02 14:32:30 -07:00
xfrm4_policy.c
net: Const qualify network templated ctl_tables Arrays
2026-08-13 13:12:24 +02:00
xfrm4_protocol.c
ipv4: Convert ip_route_input_noref() to dscp_t.
2024-10-03 16:21:21 -07:00
xfrm4_state.c
…
xfrm4_tunnel.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00