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linux/net
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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
..
6lowpan net: fill in MODULE_DESCRIPTION()s for 6LoWPAN 2024-02-09 14:12:01 -08:00
9p
802
8021q rtnetlink: prepare nla_put_iflink() to run under RCU 2024-02-26 11:46:12 +00:00
appletalk
atm net: fill in MODULE_DESCRIPTION()s for mpoa 2024-02-09 14:12:01 -08:00
ax25 ax25: fix use-after-free bugs caused by ax25_ds_del_timer 2024-04-02 17:59:44 -07:00
batman-adv batman-adv: Avoid infinite loop trying to resize local TT 2024-03-29 20:18:43 +01:00
bluetooth Bluetooth: Fix TOCTOU in HCI debugfs implementation 2024-03-29 09:48:37 -04:00
bpf for-netdev 2024-03-11 18:06:04 -07:00
bridge netfilter: validate user input for expected length 2024-04-04 09:39:52 -07:00
caif
can linux-can-next-for-6.9-20240220 2024-02-20 15:32:45 +01:00
ceph libceph: init the cursor when preparing sparse read in msgr2 2024-03-06 12:43:01 +01:00
core bpf-for-netdev 2024-04-04 11:37:39 -07:00
dcb
dccp Kbuild updates for v6.9 2024-03-21 14:41:00 -07:00
devlink devlink: fix port new reply cmd type 2024-03-19 19:37:57 -07:00
dns_resolver
dsa net: dsa: Leverage core stats allocator 2024-03-07 20:37:13 -08:00
ethernet
ethtool ethtool: remove ethtool_eee_use_linkmodes 2024-03-06 20:40:20 -08:00
handshake net/handshake: Fix handshake_req_destroy_test1 2024-02-08 18:32:29 -08:00
hsr net: hsr: Use full string description when opening HSR network device 2024-03-29 10:42:21 +00:00
ieee802154 Merge tag 'ieee802154-for-net-next-2024-03-07' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan-next 2024-03-08 20:35:33 -08:00
ife
ipv4 netfilter: complete validation of user input 2024-04-10 19:42:56 -07:00
ipv6 netfilter: complete validation of user input 2024-04-10 19:42:56 -07:00
iucv more s390 updates for 6.9 merge window 2024-03-19 11:38:27 -07:00
kcm net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function 2024-03-11 09:53:22 +00:00
key net: fill in MODULE_DESCRIPTION()s for af_key 2024-02-09 14:12:01 -08:00
l2tp l2tp: fix incorrect parameter validation in the pppol2tp_getsockopt() function 2024-03-11 09:53:22 +00:00
l3mdev
lapb
llc llc: call sock_orphan() at release time 2024-01-30 13:49:09 +01:00
mac80211 wifi: mac80211: correctly set active links upon TTLM 2024-03-25 15:23:07 +01:00
mac802154 mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-03-06 21:01:26 +01:00
mctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-02-29 14:24:56 -08:00
mpls - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
mptcp mptcp: don't account accept() of non-MPC client as fallback to TCP 2024-04-01 21:25:00 -07:00
ncsi
netfilter netfilter: nf_tables: discard table flag update with pending basechain deletion 2024-04-04 11:38:35 +02:00
netlabel netlabel: remove impossible return value in netlbl_bitmap_walk 2024-02-28 19:37:34 -08:00
netlink net/netlink: Add getsockopt support for NETLINK_LISTEN_ALL_NSID 2024-03-11 15:48:34 -07:00
netrom netrom: Fix data-races around sysctl_net_busy_read 2024-03-07 10:36:58 +01:00
nfc nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies 2024-04-09 17:01:01 -07:00
nsh
openvswitch net: openvswitch: fix unwanted error log on timeout policy probing 2024-04-05 22:16:06 -07:00
packet Revert "net: Re-use and set mono_delivery_time bit for userspace tstamp packets" 2024-03-18 12:29:53 +00:00
phonet phonet/pep: fix racy skb_queue_empty() use 2024-02-22 09:05:50 +01:00
psample
qrtr
rds net/rds: fix possible cp null dereference 2024-03-29 12:04:09 -07:00
rfkill
rose
rxrpc rxrpc: Fix error check on ->alloc_txbuf() 2024-03-14 13:09:53 +01:00
sched net/sched: act_skbmod: prevent kernel-infoleak 2024-04-04 09:32:29 -07:00
sctp net: introduce include/net/rps.h 2024-03-07 21:12:43 -08:00
smc net/smc: reduce rtnl pressure in smc_pnet_create_pnetids_list() 2024-03-05 15:49:35 +01:00
strparser
sunrpc nfsd-6.9 fixes: 2024-03-28 14:35:32 -07:00
switchdev net: bridge: switchdev: Skip MDB replays of deferred events on offload 2024-02-16 09:36:37 +00:00
tipc tipc: Cleanup tipc_nl_bearer_add() error paths 2024-02-15 13:18:19 +01:00
tls tls: get psock ref after taking rxlock to avoid leak 2024-03-26 20:48:24 -07:00
unix af_unix: Clear stale u->oob_skb. 2024-04-08 19:58:48 -07:00
vmw_vsock vsock/virtio: fix packet delivery to tap device 2024-04-02 18:00:24 -07:00
wireless wifi: cfg80211: fix rdev_dump_mpp() arguments order 2024-03-25 15:23:06 +01:00
x25 net/x25: fix incorrect parameter validation in the x25_getsockopt() function 2024-03-11 09:53:22 +00:00
xdp xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING 2024-04-05 22:47:22 -07:00
xfrm xfrm: Allow UDP encapsulation only in offload modes 2024-03-18 11:56:11 +01:00
compat.c
devres.c
Kconfig net: bql: allow the config to be disabled 2024-02-18 10:19:21 +00:00
Kconfig.debug
Makefile af_unix: Remove CONFIG_UNIX_SCM. 2024-01-31 16:41:16 -08:00
socket.c net: remove {revc,send}msg_copy_msghdr() from exports 2024-03-14 16:48:53 -07:00
sysctl_net.c