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ec8f32ad9a
linux/net/ipv4
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Kuniyuki Iwashima ab5fb73ffa ping: Fix potentail NULL deref for /proc/net/icmp. 
After commit dbca1596bb ("ping: convert to RCU lookups, get rid
of rwlock"), we use RCU for ping sockets, but we should use spinlock
for /proc/net/icmp to avoid a potential NULL deref mentioned in
the previous patch.

Let's go back to using spinlock there.

Note we can convert ping sockets to use hlist instead of hlist_nulls
because we do not use SLAB_TYPESAFE_BY_RCU for ping sockets.

Fixes: dbca1596bb ("ping: convert to RCU lookups, get rid of rwlock")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-04-04 18:56:58 -07:00
..
bpfilter
netfilter netfilter: tproxy: fix deadlock due to missing BH disable 2023-03-06 12:09:48 +01:00
af_inet.c net: no longer support SOCK_REFCNT_DEBUG feature 2023-02-15 10:25:21 +00:00
ah4.c net: ipv4: Remove completion function scaffolding 2023-02-13 18:35:15 +08:00
arp.c ipv4: move from strlcpy with unused retval to strscpy 2022-08-22 17:59:37 -07:00
bpf_tcp_ca.c bpf: Pass const struct bpf_prog * to .check_member 2023-01-25 10:25:57 -08:00
cipso_ipv4.c cipso_ipv4: use iph_set_totlen in skbuff_setattr 2023-02-01 20:54:27 -08:00
datagram.c Networking fixes for 6.1-rc2, including fixes from netfilter 2022-10-20 17:24:59 -07:00
devinet.c net: devinet: Reduce refcount before grace period 2022-11-30 13:17:52 -08:00
esp4_offload.c xfrm: replay: Fix ESN wrap around for GSO 2022-10-19 09:00:53 +02:00
esp4.c net: ipv4: Remove completion function scaffolding 2023-02-13 18:35:15 +08:00
fib_frontend.c ipv4: Fix incorrect table ID in IOCTL path 2023-03-16 17:26:31 -07:00
fib_lookup.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-17 11:44:20 -08:00
fib_notifier.c net: ipv4: remove superfluous header files from fib_notifier.c 2021-09-28 17:32:56 -07:00
fib_rules.c ipv4: remove unnecessary type castings 2022-04-30 15:12:58 +01:00
fib_semantics.c ipv4: prevent potential spectre v1 gadget in fib_metrics_match() 2023-01-23 21:37:39 -08:00
fib_trie.c ipv4: Fix error return code in fib_table_insert() 2022-11-22 20:18:20 -08:00
fou_core.c net: fou: use policy and operation tables generated from the spec 2023-01-24 10:58:11 +01:00
fou_nl.c ynl: broaden the license even more 2023-03-16 21:20:32 -07:00
fou_nl.h ynl: broaden the license even more 2023-03-16 21:20:32 -07:00
gre_demux.c
gre_offload.c net: gro: skb_gro_header helper function 2022-08-25 10:33:21 +02:00
icmp.c icmp: guard against too small mtu 2023-03-31 21:37:06 -07:00
igmp.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
inet_connection_sock.c net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). 2023-02-20 16:31:49 -08:00
inet_diag.c net: inet: Retire port only listening_hash 2022-05-12 16:52:18 -07:00
inet_fragment.c net: dropreason: add SKB_DROP_REASON_FRAG_REASM_TIMEOUT 2022-10-31 20:14:27 -07:00
inet_hashtables.c tcp: Fix bind() conflict check for dual-stack wildcard address. 2023-03-15 00:23:14 -07:00
inet_timewait_sock.c net: no longer support SOCK_REFCNT_DEBUG feature 2023-02-15 10:25:21 +00:00
inetpeer.c inetpeer: Fix data-races around sysctl. 2022-07-08 12:10:33 +01:00
ip_forward.c ip: Fix data-races around sysctl_ip_fwd_update_priority. 2022-07-15 11:49:55 +01:00
ip_fragment.c net: dropreason: add SKB_DROP_REASON_FRAG_TOO_FAR 2022-10-31 20:14:27 -07:00
ip_gre.c erspan: do not use skb_mac_header() in ndo_start_xmit() 2023-03-21 21:16:26 -07:00
ip_input.c net: add support for ipv4 big tcp 2023-02-01 20:54:27 -08:00
ip_options.c ipv4: drop fragmentation code from ip_options_build() 2022-01-29 17:53:07 +00:00
ip_output.c net: add support for ipv4 big tcp 2023-02-01 20:54:27 -08:00
ip_sockglue.c inet: Add IP_LOCAL_PORT_RANGE socket option 2023-01-25 22:45:00 -08:00
ip_tunnel_core.c net: Add helper function to parse netlink msg of ip_tunnel_parm 2022-10-03 07:59:06 +01:00
ip_tunnel.c net: tunnels: annotate lockless accesses to dev->needed_headroom 2023-03-15 00:04:04 -07:00
ip_vti.c ipv4: tunnels: use DEV_STATS_INC() 2022-11-16 12:48:44 +00:00
ipcomp.c xfrm: ipcomp: add extack to ipcomp{4,6}_init_state 2022-09-29 07:18:00 +02:00
ipconfig.c Driver core / kernfs changes for 6.0-rc1 2022-08-04 11:31:20 -07:00
ipip.c ipv4: tunnels: use DEV_STATS_INC() 2022-11-16 12:48:44 +00:00
ipmr_base.c ipmr: adopt rcu_read_lock() in mr_dump() 2022-06-24 11:34:38 +01:00
ipmr.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
Kconfig tcp: configurable source port perturb table size 2022-11-16 13:02:04 +00:00
Makefile net: fou: use policy and operation tables generated from the spec 2023-01-24 10:58:11 +01:00
metrics.c ipv4: prevent potential spectre v1 gadget in ip_metrics_convert() 2023-01-23 21:37:25 -08:00
netfilter.c netfilter: Use l3mdev flow key when re-routing mangled packets 2022-05-16 13:03:29 +02:00
netlink.c
nexthop.c nh: fix scope used to find saddr when adding non gw nh 2022-10-27 10:17:40 -07:00
ping.c ping: Fix potentail NULL deref for /proc/net/icmp. 2023-04-04 18:56:58 -07:00
proc.c icmp: Add counters for rate limits 2023-01-26 10:52:18 +01:00
protocol.c
raw_diag.c raw: Fix NULL deref in raw_get_next(). 2023-04-04 18:56:58 -07:00
raw.c raw: Fix NULL deref in raw_get_next(). 2023-04-04 18:56:58 -07:00
route.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
syncookies.c mptcp: remove MPTCP 'ifdef' in TCP SYN cookies 2022-12-12 13:11:24 -08:00
sysctl_net_ipv4.c udp: Introduce optional per-netns hash table. 2022-11-16 09:43:35 +00:00
tcp_bbr.c bpf: Add __bpf_kfunc tag to all kfuncs 2023-02-02 00:25:14 +01:00
tcp_bic.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_bpf.c bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser() 2023-03-03 17:25:15 +01:00
tcp_cdg.c Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
tcp_cong.c bpf: Add __bpf_kfunc tag to all kfuncs 2023-02-02 00:25:14 +01:00
tcp_cubic.c bpf: Add __bpf_kfunc tag to all kfuncs 2023-02-02 00:25:14 +01:00
tcp_dctcp.c bpf: Add __bpf_kfunc tag to all kfuncs 2023-02-02 00:25:14 +01:00
tcp_dctcp.h
tcp_diag.c tcp: Access &tcp_hashinfo via net. 2022-09-20 10:21:49 -07:00
tcp_fastopen.c tcp: Make SYN ACK RTO tunable by BPF programs with TFO 2022-08-17 10:19:22 +01:00
tcp_highspeed.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_htcp.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_hybla.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_illinois.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_input.c Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
tcp_ipv4.c tcp: add TCP_MINTTL drop reason 2023-02-02 21:14:50 -08:00
tcp_lp.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_metrics.c genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
tcp_minisocks.c tcp: tcp_check_req() can be called from process context 2023-02-27 11:59:29 -08:00
tcp_nv.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_offload.c gro: add support of (hw)gro packets to gro stack 2022-10-03 12:38:34 +01:00
tcp_output.c tcp: tcp_make_synack() can be called from process context 2023-03-09 23:12:00 -08:00
tcp_plb.c prandom: remove prandom_u32_max() 2022-12-20 03:13:45 +01:00
tcp_rate.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-04-28 13:02:01 -07:00
tcp_recovery.c tcp: Fix data-races around sysctl_tcp_recovery. 2022-07-20 10:14:50 +01:00
tcp_scalable.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_timer.c tcp: Make SYN ACK RTO tunable by BPF programs with TFO 2022-08-17 10:19:22 +01:00
tcp_ulp.c net/ulp: use consistent error code when blocking ULP 2023-01-19 09:26:16 -08:00
tcp_vegas.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_vegas.h
tcp_veno.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_westwood.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp_yeah.c tcp: add accessors to read/set tp->snd_cwnd 2022-04-06 12:05:41 -07:00
tcp.c - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
tunnel4.c
udp_bpf.c bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser() 2023-03-03 17:25:15 +01:00
udp_diag.c udp: Access &udp_table via net. 2022-11-16 09:43:35 +00:00
udp_impl.h net: remove noblock parameter from recvmsg() entities 2022-04-12 15:00:25 +02:00
udp_offload.c udp: allow header check for dodgy GSO_UDP_L4 packets. 2022-12-12 09:29:56 +00:00
udp_tunnel_core.c net/tunnel: wait until all sk_user_data reader finish before releasing the sock 2022-12-12 09:51:52 +00:00
udp_tunnel_nic.c udp_tunnel: Add checks for nla_nest_start() in __udp_tunnel_nic_dump_write() 2022-11-29 08:44:24 -08:00
udp_tunnel_stub.c
udp.c inet: Add IP_LOCAL_PORT_RANGE socket option 2023-01-25 22:45:00 -08:00
udplite.c tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2022-10-12 17:50:37 -07:00
xfrm4_input.c
xfrm4_output.c
xfrm4_policy.c net: rename reference+tracking helpers 2022-06-09 21:52:55 -07:00
xfrm4_protocol.c net: xfrm: unexport __init-annotated xfrm4_protocol_init() 2022-06-08 10:10:13 -07:00
xfrm4_state.c
xfrm4_tunnel.c xfrm: tunnel: add extack to ipip_init_state, xfrm6_tunnel_init_state 2022-09-29 07:18:00 +02:00