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linux/net/ipv4
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Eric Dumazet 65acf6e050 netfilter: complete validation of user input 
In my recent commit, I missed that do_replace() handlers
use copy_from_sockptr() (which I fixed), followed
by unsafe copy_from_sockptr_offset() calls.

In all functions, we can perform the @optlen validation
before even calling xt_alloc_table_info() with the following
check:

if ((u64)optlen < (u64)tmp.size + sizeof(tmp))
        return -EINVAL;

Fixes: 0c83842df40f ("netfilter: validate user input for expected length")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://lore.kernel.org/r/20240409120741.3538135-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-10 19:42:56 -07:00
..
netfilter
netfilter: complete validation of user input
2024-04-10 19:42:56 -07:00
af_inet.c
net: introduce include/net/rps.h
2024-03-07 21:12:43 -08:00
ah4.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00
arp.c
arp: Prevent overflow in arp_req_get().
2024-02-20 10:50:19 +01:00
bpf_tcp_ca.c
bpf: treewide: Annotate BPF kfuncs in BTF
2024-01-31 20:40:56 -08:00
cipso_ipv4.c
netlabel: remove impossible return value in netlbl_bitmap_walk
2024-02-28 19:37:34 -08:00
datagram.c
ipv4: Set the routing scope properly in ip_route_output_ports().
2024-02-12 17:33:05 -08:00
devinet.c
netlink: let core handle error cases in dump operations
2024-03-07 20:48:22 -08:00
esp4_offload.c
xfrm: Support GRO for IPv4 ESP in UDP encapsulation
2023-10-06 07:30:40 +02:00
esp4.c
net: esp: fix bad handling of pages from page_pool
2024-03-18 11:53:46 +01:00
fib_frontend.c
netlink: let core handle error cases in dump operations
2024-03-07 20:48:22 -08:00
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
…
fib_rules.c
fib: remove unnecessary input parameters in fib_default_rule_add
2024-01-03 16:42:48 -08:00
fib_semantics.c
ipv4: fib: annotate races around nh->nh_saddr_genid and nh->nh_saddr
2023-10-18 18:11:31 -07:00
fib_trie.c
inet: switch inet_dump_fib() to RCU protection
2024-02-26 11:46:13 +00:00
fou_bpf.c
bpf: treewide: Annotate BPF kfuncs in BTF
2024-01-31 20:40:56 -08:00
fou_core.c
net: gro: rename skb_gro_header_hard()
2024-03-05 13:30:11 +01:00
fou_nl.c
net: ynl: prefix uAPI header include with uapi/
2023-05-26 10:30:14 +01:00
fou_nl.h
net: ynl: prefix uAPI header include with uapi/
2023-05-26 10:30:14 +01:00
gre_demux.c
Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>"
2024-03-06 13:07:39 -08:00
gre_offload.c
net: gro: rename skb_gro_header_hard()
2024-03-05 13:30:11 +01:00
icmp.c
xfrm: pass struct net to xfrm_decode_session wrappers
2023-10-06 08:31:53 +02:00
igmp.c
inet: annotate devconf data-races
2024-02-28 19:36:39 -08:00
inet_connection_sock.c
tcp: Fix bind() regression for v6-only wildcard and v4(-mapped-v6) non-wildcard addresses.
2024-03-29 14:48:38 -07:00
inet_diag.c
inet_diag: skip over empty buckets
2024-01-23 15:13:55 +01:00
inet_fragment.c
inet: inet_defrag: prevent sk release while still in use
2024-03-28 12:06:22 +01:00
inet_hashtables.c
tcp: Fix refcnt handling in __inet_hash_connect().
2024-03-14 10:57:02 +01:00
inet_timewait_sock.c
tcp: Fix NEW_SYN_RECV handling in inet_twsk_purge()
2024-03-12 18:56:15 -07:00
inetpeer.c
net: ipv4: Simplify the allocation of slab caches in inet_initpeers
2024-01-31 16:39:42 -08:00
ip_forward.c
net: fix IPSTATS_MIB_OUTFORWDATAGRAMS increment after fragment check
2023-10-13 09:58:45 -07:00
ip_fragment.c
inet: inet_defrag: prevent sk release while still in use
2024-03-28 12:06:22 +01:00
ip_gre.c
erspan: make sure erspan_base_hdr is present in skb->head
2024-03-29 12:42:55 -07:00
ip_input.c
ipv4: ignore dst hint for multipath routes
2023-09-01 08:11:51 +01:00
ip_options.c
ipv4: drop fragmentation code from ip_options_build()
2022-01-29 17:53:07 +00:00
ip_output.c
Revert "net: Re-use and set mono_delivery_time bit for userspace tstamp packets"
2024-03-18 12:29:53 +00:00
ip_sockglue.c
inet: Add getsockopt support for IP_ROUTER_ALERT and IPV6_ROUTER_ALERT
2024-03-06 12:37:06 +00:00
ip_tunnel_core.c
tunnels: fix out of bounds access when building IPv6 PMTU error
2024-02-03 12:43:19 +00:00
ip_tunnel.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2024-03-11 20:38:36 -07:00
ip_vti.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2024-02-15 16:20:04 -08:00
ipcomp.c
xfrm: ipcomp: add extack to ipcomp{4,6}_init_state
2022-09-29 07:18:00 +02:00
ipconfig.c
net: ipconfig: move ic_nameservers_fallback into #ifdef block
2023-05-22 11:17:55 +01:00
ipip.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2024-02-15 16:20:04 -08:00
ipmr_base.c
ipmr: adopt rcu_read_lock() in mr_dump()
2022-06-24 11:34:38 +01:00
ipmr.c
ipmr: fix incorrect parameter validation in the ip_mroute_getsockopt() function
2024-03-11 09:53:22 +00:00
Kconfig
net/tcp: Add TCP-AO config and structures
2023-10-27 10:35:44 +01:00
Makefile
bpfilter: remove bpfilter
2024-01-04 10:23:10 -08:00
metrics.c
ipv4: prevent potential spectre v1 gadget in ip_metrics_convert()
2023-01-23 21:37:25 -08:00
netfilter.c
xfrm: pass struct net to xfrm_decode_session wrappers
2023-10-06 08:31:53 +02:00
netlink.c
…
nexthop.c
nexthop: fix uninitialized variable in nla_put_nh_group_stats()
2024-03-22 18:03:29 -07:00
ping.c
bpf-next-for-netdev
2023-10-16 21:05:33 -07:00
proc.c
inet: annotate devconf data-races
2024-02-28 19:36:39 -08:00
protocol.c
…
raw_diag.c
inet_diag: add module pointer to "struct inet_diag_handler"
2024-01-23 15:13:54 +01:00
raw.c
ipv4: raw: Fix sending packets from raw sockets via IPsec tunnels
2024-03-19 13:45:58 +01:00
route.c
ipv4/route: avoid unused-but-set-variable warning
2024-04-09 15:49:19 +02:00
syncookies.c
tcp: Clear req->syncookie in reqsk_alloc().
2024-03-19 19:35:59 -07:00
sysctl_net_ipv4.c
Use READ/WRITE_ONCE() for IP local_port_range.
2023-12-08 10:44:42 -08:00
tcp_ao.c
net: tcp: Remove redundant initialization of variable len
2024-02-20 11:40:15 +01:00
tcp_bbr.c
bpf: treewide: Annotate BPF kfuncs in BTF
2024-01-31 20:40:56 -08:00
tcp_bic.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_bpf.c
tcp_bpf: properly release resources on error paths
2023-10-18 18:09:31 -07:00
tcp_cdg.c
Random number generator fixes for Linux 6.1-rc1.
2022-10-16 15:27:07 -07:00
tcp_cong.c
bpf, net: validate struct_ops when updating value.
2024-03-04 10:03:57 -08:00
tcp_cubic.c
bpf: treewide: Annotate BPF kfuncs in BTF
2024-01-31 20:40:56 -08:00
tcp_dctcp.c
bpf: treewide: Annotate BPF kfuncs in BTF
2024-01-31 20:40:56 -08:00
tcp_dctcp.h
…
tcp_diag.c
inet_diag: add module pointer to "struct inet_diag_handler"
2024-01-23 15:13:54 +01:00
tcp_fastopen.c
inet: move inet->defer_connect to inet->inet_flags
2023-08-16 11:09:18 +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
tcp: add dropreasons in tcp_rcv_state_process()
2024-02-28 10:39:22 +00:00
tcp_ipv4.c
tcp: make dropreason in tcp_child_process() work
2024-02-28 10:39:22 +00:00
tcp_lp.c
tcp: rename tcp_time_stamp() to tcp_time_stamp_ts()
2023-10-23 09:35:01 +01:00
tcp_metrics.c
tcp_metrics: optimize tcp_metrics_flush_all()
2023-10-03 10:05:22 +02:00
tcp_minisocks.c
rds: tcp: Fix use-after-free of net in reqsk_timer_handler().
2024-03-12 18:56:16 -07:00
tcp_nv.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_offload.c
net: move tcpv4_offload and tcpv6_offload to net_hotdata
2024-03-07 21:12:42 -08:00
tcp_output.c
net: Remove acked SYN flag from packet in the transmit queue correctly
2023-12-12 15:56:02 -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 excessive TLP and RACK timeouts from HZ rounding
2023-10-17 17:25:42 -07:00
tcp_scalable.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_sigpool.c
net/tcp_sigpool: Use kref_get_unless_zero()
2024-01-01 14:42:05 +00:00
tcp_timer.c
tcp: use tp->total_rto to track number of linear timeouts in SYN_SENT state
2023-11-16 23:35:12 +00:00
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
tcp: properly terminate timers for kernel sockets
2024-03-25 19:51:57 -07:00
tunnel4.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00
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
inet_diag: add module pointer to "struct inet_diag_handler"
2024-01-23 15:13:54 +01:00
udp_impl.h
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
udp_offload.c
udp: prevent local UDP tunnel packets from being GROed
2024-03-29 11:30:44 +00:00
udp_tunnel_core.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00
udp_tunnel_nic.c
udp_tunnel: Use flex array to simplify code
2023-10-03 11:39:34 +02:00
udp_tunnel_stub.c
…
udp.c
udp: do not accept non-tunnel GSO skbs landing in a tunnel
2024-03-29 11:30:43 +00:00
udplite.c
udplite: remove UDPLITE_BIT
2023-09-14 16:16:36 +02:00
xfrm4_input.c
net: adopt skb_network_offset() and similar helpers
2024-03-04 08:47:06 +00:00
xfrm4_output.c
…
xfrm4_policy.c
sysctl-6.6-rc1
2023-08-29 17:39:15 -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
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00