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kernel_linux/net/ipv4
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Florian Westphal 133fd41eb2 netfilter: x_tables: fix compat match/target pad out-of-bound write 
stable inclusion
from linux-4.19.188
commit 12ec80252edefff00809d473a47e5f89c7485499
category: bugfix
issue: #I42HLL
CVE: CVE-2021-22555

--------------------------------

commit b29c457a6511435960115c0f548c4360d5f4801d upstream.

xt_compat_match/target_from_user doesn't check that zeroing the area
to start of next rule won't write past end of allocated ruleset blob.

Remove this code and zero the entire blob beforehand.

Reported-by: syzbot+cfc0247ac173f597aaaa@syzkaller.appspotmail.com
Reported-by: Andy Nguyen <theflow@google.com>
Fixes: 9fa492cdc160c ("[NETFILTER]: x_tables: simplify compat API")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Yu Changchun <yuchangchun1@huawei.com>
2021-08-03 10:05:37 +08:00
..
bpfilter
bpfilter: remove trailing newline
2018-07-24 14:10:42 -07:00
netfilter
netfilter: x_tables: fix compat match/target pad out-of-bound write
2021-08-03 10:05:37 +08:00
af_inet.c
net: don't clear sock->sk early to avoid trouble in strparser
2020-01-27 14:50:52 +01:00
ah4.c
net: use -ENOSPC for transient busy indication
2017-11-03 22:11:17 +08:00
arp.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
cipso_ipv4.c
cipso,calipso: resolve a number of problems with the DOI refcounts
2021-05-31 17:14:59 +08:00
datagram.c
inet: stop leaking jiffies on the wire
2019-11-10 11:27:37 +01:00
devinet.c
devinet: fix memleak in inetdev_init()
2020-06-10 21:34:58 +02:00
esp4_offload.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2018-07-27 09:33:37 -07:00
esp4.c
esp4: add length check for UDP encapsulation
2019-05-25 18:23:41 +02:00
fib_frontend.c
ipv4: fix route update on metric change.
2019-11-10 11:27:50 +01:00
fib_lookup.h
…
fib_notifier.c
…
fib_rules.c
net: fib_rules: add extack support
2018-04-23 10:21:24 -04:00
fib_semantics.c
net: Fix the arp error in some cases
2020-06-30 23:17:06 -04:00
fib_trie.c
ipv4: Silence suspicious RCU usage warning
2020-08-11 15:32:34 +02:00
fou.c
net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv
2019-04-27 09:36:31 +02:00
gre_demux.c
gre: fix uninit-value in __iptunnel_pull_header
2020-03-18 07:14:11 +01:00
gre_offload.c
net: gre: recompute gre csum for sctp over gre tunnels
2020-08-11 15:32:34 +02:00
icmp.c
icmp: randomize the global rate limiter
2020-10-29 09:54:58 +01:00
igmp.c
ipv4/igmp: fix v1/v2 switchback timeout based on rfc3376, 8.12
2019-12-01 09:17:05 +01:00
inet_connection_sock.c
net: refactor bind_bucket fastreuse into helper
2020-08-19 08:15:03 +02:00
inet_diag.c
inet_diag: return classid for all socket types
2020-03-18 07:14:11 +01:00
inet_fragment.c
net: IP defrag: encapsulate rbtree defrag code into callable functions
2019-04-27 09:36:33 +02:00
inet_hashtables.c
net: initialize fastreuse on inet_inherit_port
2020-08-19 08:15:04 +02:00
inet_timewait_sock.c
soreuseport: initialise timewait reuseport field
2018-04-07 22:32:32 -04:00
inetpeer.c
inetpeer: fix data-race in inet_putpeer / inet_putpeer
2020-01-04 19:13:29 +01:00
ip_forward.c
net: clear skb->tstamp in forwarding paths
2019-01-09 17:38:31 +01:00
ip_fragment.c
net: IP defrag: encapsulate rbtree defrag code into callable functions
2019-04-27 09:36:33 +02:00
ip_gre.c
ip_gre: set dev->hard_header_len and dev->needed_headroom properly
2020-10-30 10:38:28 +01:00
ip_input.c
inet: do not call sublist_rcv on empty list
2021-05-31 17:14:52 +08:00
ip_options.c
vrf: check accept_source_route on the original netdevice
2019-04-17 08:38:42 +02:00
ip_output.c
ip: fix tos reflection in ack and reset packets
2020-09-26 18:01:29 +02:00
ip_sockglue.c
ip_sockglue: Fix missing-check bug in ip_ra_control()
2020-11-14 16:00:50 +08:00
ip_tunnel_core.c
ip_tunnel: allow not to count pkts on tstats by setting skb's dev to NULL
2019-08-04 09:30:57 +02:00
ip_tunnel.c
ip_tunnel: fix use-after-free in ip_tunnel_lookup()
2020-06-30 23:17:06 -04:00
ip_vti.c
ip_vti: receive ipip packet by calling ip_tunnel_rcv
2020-06-03 08:19:46 +02:00
ipcomp.c
…
ipconfig.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-06-06 18:39:49 -07:00
ipip.c
net: ipip: fix wrong address family in init error path
2020-06-03 08:19:10 +02:00
ipmr_base.c
net: ipmr: fix unresolved entry dumps
2018-10-17 22:35:42 -07:00
ipmr.c
ipmr: Fix skb headroom in ipmr_get_route().
2019-11-20 18:45:11 +01:00
Kconfig
vti[6]: fix packet tx through bpf_redirect() in XinY cases
2020-04-02 15:28:18 +02:00
Makefile
net: remove blank lines at end of file
2018-07-24 14:10:43 -07:00
metrics.c
net: metrics: add proper netlink validation
2018-06-05 12:29:43 -04:00
netfilter.c
netfilter: utils: move nf_ip_checksum* from ipv4 to utils
2018-07-16 17:51:48 +02:00
netlink.c
ipv4: Add ICMPv6 support when parse route ipproto
2019-03-10 07:17:17 +01:00
ping.c
ipv4: fill fl4_icmp_{type,code} in ping_v4_sendmsg
2020-07-22 09:31:59 +02:00
proc.c
tcp: tcp_fragment() should apply sane memory limits
2019-06-17 19:51:56 +02:00
protocol.c
…
raw_diag.c
inet_diag: return classid for all socket types
2020-03-18 07:14:11 +01:00
raw.c
ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
2019-07-03 13:14:46 +02:00
route.c
ipv4: Restore flowi4_oif update before call to xfrm_lookup_route
2020-10-29 09:54:55 +01:00
syncookies.c
tcp: handle inet_csk_reqsk_queue_add() failures
2019-03-19 13:12:39 +01:00
sysctl_net_ipv4.c
tcp: add tcp_min_snd_mss sysctl
2019-06-17 19:51:56 +02:00
tcp_bbr.c
tcp_bbr: adapt cwnd based on ack aggregation estimation
2020-09-26 18:01:32 +02:00
tcp_bic.c
…
tcp_cdg.c
…
tcp_cong.c
tcp: make sure listeners don't initialize congestion-control state
2020-07-22 09:31:59 +02:00
tcp_cubic.c
tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
2020-06-30 23:17:06 -04:00
tcp_dctcp.c
tcp: Ensure DCTCP reacts to losses
2019-04-17 08:38:41 +02:00
tcp_diag.c
tcp: annotate tp->rcv_nxt lockless reads
2020-01-09 10:19:08 +01:00
tcp_fastopen.c
tcp: pause Fast Open globally after third consecutive timeout
2017-12-13 15:51:12 -05:00
tcp_highspeed.c
…
tcp_htcp.c
…
tcp_hybla.c
…
tcp_illinois.c
net/tcp/illinois: replace broken algorithm reference link
2018-02-28 12:03:47 -05:00
tcp_input.c
tcp: Prevent low rmem stalls with SO_RCVLOWAT.
2020-11-05 11:08:33 +01:00
tcp_ipv4.c
tcp: md5: refine tcp_md5_do_add()/tcp_md5_hash_key() barriers
2020-07-22 09:32:00 +02:00
tcp_lp.c
…
tcp_metrics.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
tcp_minisocks.c
tcp: annotate tp->rcv_nxt lockless reads
2020-01-09 10:19:08 +01:00
tcp_nv.c
tcp_nv: fix potential integer overflow in tcpnv_acked
2018-01-31 10:26:30 -05:00
tcp_offload.c
tcp: Don't coalesce decrypted and encrypted SKBs
2018-07-16 00:12:09 -07:00
tcp_output.c
tcp: allow at most one TLP probe per flight
2020-07-31 18:37:48 +02:00
tcp_rate.c
tcp: expose both send and receive intervals for rate sample
2018-07-11 23:01:56 -07:00
tcp_recovery.c
tcp: add stat of data packet reordering events
2018-08-01 09:56:10 -07:00
tcp_scalable.c
…
tcp_timer.c
tcp: fix SNMP TCP timeout under-estimation
2019-12-13 08:52:20 +01:00
tcp_ulp.c
tcp, ulp: fix leftover icsk_ulp_ops preventing sock from reattach
2018-08-16 14:58:08 -07:00
tcp_vegas.c
…
tcp_vegas.h
…
tcp_veno.c
…
tcp_westwood.c
…
tcp_yeah.c
…
tcp.c
tcp: Prevent low rmem stalls with SO_RCVLOWAT.
2020-11-05 11:08:33 +01:00
tunnel4.c
inet: whitespace cleanup
2018-02-28 11:43:28 -05:00
udp_diag.c
inet_diag: return classid for all socket types
2020-03-18 07:14:11 +01:00
udp_impl.h
…
udp_offload.c
net/udp_gso: Allow TX timestamp with UDP GSO
2020-01-27 14:50:56 +01:00
udp_tunnel.c
…
udp.c
udp: Improve load balancing for SO_REUSEPORT.
2020-07-31 18:37:49 +02:00
udplite.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
xfrm4_input.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm4_mode_beet.c
…
xfrm4_mode_transport.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm4_mode_tunnel.c
xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto
2018-03-07 10:54:29 +01:00
xfrm4_output.c
xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish
2020-04-29 16:31:23 +02:00
xfrm4_policy.c
net: add bool confirm_neigh parameter for dst_ops.update_pmtu
2020-01-04 19:13:37 +01:00
xfrm4_protocol.c
…
xfrm4_state.c
…
xfrm4_tunnel.c
…