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65acf6e050
linux/net/ipv6
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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: 0c83842df4 ("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
..
ila
netfilter netfilter: complete validation of user input 2024-04-10 19:42:56 -07:00
addrconf_core.c ipv6: Ensure natural alignment of const ipv6 loopback and router addresses 2024-01-30 12:43:18 +01:00
addrconf.c ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr 2024-04-09 17:09:05 -07:00
addrlabel.c
af_inet6.c net: introduce include/net/rps.h 2024-03-07 21:12:43 -08:00
ah6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
anycast.c ipv6: anycast: complete RCU handling of struct ifacaddr6 2024-02-26 18:40:34 -08:00
calipso.c netlabel: remove impossible return value in netlbl_bitmap_walk 2024-02-28 19:37:34 -08:00
datagram.c ipv6: annotate data-races around np->ucast_oif 2023-12-11 10:59:17 +00:00
esp6_offload.c xfrm: Support GRO for IPv6 ESP in UDP encapsulation 2023-10-06 07:31:14 +02:00
esp6.c net: esp: fix bad handling of pages from page_pool 2024-03-18 11:53:46 +01:00
exthdrs_core.c
exthdrs_offload.c net: gso: add HBH extension header offload support 2024-01-05 08:11:49 -08:00
exthdrs.c net: ipv6: exthdrs: get rid of ipv6_skb_net() 2024-03-11 15:15:08 -07:00
fib6_notifier.c
fib6_rules.c ipv6: fib6_rules: flush route cache when rule is changed 2024-03-08 10:10:35 +00:00
fou6.c
icmp.c ipv6: annotate data-races around np->ucast_oif 2023-12-11 10:59:17 +00:00
inet6_connection_sock.c net: implement lockless SO_PRIORITY 2023-10-01 19:09:54 +01:00
inet6_hashtables.c ipv6: move tcp_ipv6_hash_secret and udp_ipv6_hash_secret to net_hotdata 2024-03-07 21:12:43 -08:00
ioam6_iptunnel.c netlink: make range pointers in policies const 2023-10-26 16:24:09 -07:00
ioam6.c ipv6/addrconf: annotate data-races around devconf fields (II) 2024-03-01 08:42:33 +00:00
ip6_checksum.c
ip6_fib.c ipv6: fib: hide unused 'pn' variable 2024-04-09 15:49:19 +02:00
ip6_flowlabel.c ipv6: move np->repflow to atomic flags 2023-09-15 10:33:48 +01:00
ip6_gre.c erspan: make sure erspan_base_hdr is present in skb->head 2024-03-29 12:42:55 -07:00
ip6_icmp.c
ip6_input.c ipv6/addrconf: annotate data-races around devconf fields (II) 2024-03-01 08:42:33 +00:00
ip6_offload.c net: move ip_packet_offload and ipv6_packet_offload to net_hotdata 2024-03-07 21:12:42 -08:00
ip6_offload.h
ip6_output.c Revert "net: Re-use and set mono_delivery_time bit for userspace tstamp packets" 2024-03-18 12:29:53 +00:00
ip6_tunnel.c net: ip6_tunnel: Leverage core stats allocator 2024-03-04 09:57:18 +00:00
ip6_udp_tunnel.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
ip6_vti.c net: add netdev_lockdep_set_classes() to virtual drivers 2024-02-13 18:45:06 -08:00
ip6mr.c inet: allow ip_valid_fib_dump_req() to be called with RTNL or RCU 2024-02-26 11:46:12 +00:00
ipcomp6.c
ipv6_sockglue.c inet: Add getsockopt support for IP_ROUTER_ALERT and IPV6_ROUTER_ALERT 2024-03-06 12:37:06 +00:00
Kconfig
Makefile net/tcp: Introduce TCP_AO setsockopt()s 2023-10-27 10:35:44 +01:00
mcast_snoop.c
mcast.c ipv6/addrconf: annotate data-races around devconf fields (II) 2024-03-01 08:42:33 +00:00
mip6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
ndisc.c ipv6/addrconf: annotate data-races around devconf fields (II) 2024-03-01 08:42:33 +00:00
netfilter.c xfrm: pass struct net to xfrm_decode_session wrappers 2023-10-06 08:31:53 +02:00
output_core.c ipv6: annotate data-races around cnf.hop_limit 2024-03-01 08:42:31 +00:00
ping.c ipv6: annotate data-races around np->ucast_oif 2023-12-11 10:59:17 +00:00
proc.c net: fix IPSTATS_MIB_OUTPKGS increment in OutForwDatagrams. 2023-10-20 12:01:00 +01:00
protocol.c
raw.c Revert "net: Re-use and set mono_delivery_time bit for userspace tstamp packets" 2024-03-18 12:29:53 +00:00
reassembly.c net: adopt skb_network_offset() and similar helpers 2024-03-04 08:47:06 +00:00
route.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-03-07 10:29:36 -08:00
rpl_iptunnel.c
rpl.c
seg6_hmac.c ipv6/addrconf: annotate data-races around devconf fields (II) 2024-03-01 08:42:33 +00:00
seg6_iptunnel.c
seg6_local.c
seg6.c ipv6: sr: fix possible use-after-free and null-ptr-deref 2024-02-20 10:17:14 +01:00
sit.c net: sit: Do not set .ndo_get_stats64 2024-02-29 12:50:13 +01:00
syncookies.c tcp: Clear req->syncookie in reqsk_alloc(). 2024-03-19 19:35:59 -07:00
sysctl_net_ipv6.c
tcp_ao.c net/tcp: Wire up l3index to TCP-AO 2023-10-27 10:35:46 +01:00
tcp_ipv6.c ipv6: move tcpv6_protocol and udpv6_protocol to net_hotdata 2024-03-07 21:12:43 -08:00
tcpv6_offload.c net: move tcpv4_offload and tcpv6_offload to net_hotdata 2024-03-07 21:12:42 -08:00
tunnel6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
udp_impl.h
udp_offload.c udp: do not transition UDP GRO fraglist partial checksums to unnecessary 2024-03-29 11:30:44 +00:00
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
xfrm6_input.c net: adopt skb_network_offset() and similar helpers 2024-03-04 08:47:06 +00:00
xfrm6_output.c ipv6: drop feature RTAX_FEATURE_ALLFRAG 2023-10-25 18:04:29 -07:00
xfrm6_policy.c ipsec-2023-10-17 2023-10-17 18:21:13 -07:00
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c ipsec-next-2024-03-06 2024-03-08 10:56:05 +00:00