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Eric Dumazet f9845426f4 netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user 
commit e466af75c074e76107ae1cd5a2823e9c61894ffb upstream.

syzkaller reports an out of bound read in strlcpy(), triggered
by xt_copy_counters_from_user()

Fix this by using memcpy(), then forcing a zero byte at the last position
of the destination, as Florian did for the non COMPAT code.

Fixes: d7591f0c41ce ("netfilter: x_tables: introduce and use xt_copy_counters_from_user")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-19 22:48:59 +02:00
..
6lowpan
6lowpan: put mcast compression in an own function
2015-10-21 00:49:25 +02:00
9p
net/9p: fix error path of p9_virtio_probe
2018-09-15 09:40:39 +02:00
802
…
8021q
vlan: also check phy_driver ts_info for vlan's real device
2018-04-13 19:50:25 +02:00
appletalk
…
atm
net: atm: Fix potential Spectre v1
2018-05-16 10:06:51 +02:00
ax25
ax25: Fix segfault after sock connection timeout
2017-02-04 09:45:09 +01:00
batman-adv
batman-adv: fix packet loss for broadcasted DHCP packets to a server
2018-05-30 07:49:06 +02:00
bluetooth
Bluetooth: hidp: Fix handling of strncpy for hid->name information
2018-09-19 22:48:58 +02:00
bridge
bridge: Propagate vlan add failure to user
2018-08-24 13:27:01 +02:00
caif
net: caif: Add a missing rcu_read_unlock() in caif_flow_cb
2018-09-05 09:18:34 +02:00
can
can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once
2018-01-31 12:06:08 +01:00
ceph
libceph: validate con->state at the top of try_write()
2018-05-02 07:53:42 -07:00
core
net: propagate dev_get_valid_name return code
2018-08-24 13:26:55 +02:00
dcb
net: dcb: For wild-card lookups, use priority -1, not 0
2018-09-19 22:48:58 +02:00
dccp
dccp: fix undefined behavior with 'cwnd' shift in ccid2_cwnd_restart()
2018-08-22 07:48:35 +02:00
decnet
dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock
2018-02-25 11:03:38 +01:00
dns_resolver
KEYS: DNS: fix parsing multiple options
2018-07-22 14:25:54 +02:00
dsa
net: dsa: Do not suspend/resume closed slave_dev
2018-08-06 16:24:41 +02:00
ethernet
net: introduce device min_header_len
2017-02-18 16:39:27 +01:00
hsr
net/hsr: fix a warning message
2015-11-23 14:56:15 -05:00
ieee802154
net: 6lowpan: fix reserved space for single frames
2018-09-09 20:04:32 +02:00
ipv4
tcp: do not restart timewait timer on rst reception
2018-09-15 09:40:37 +02:00
ipv6
vti6: remove !skb->ignore_df check from vti6_xmit()
2018-09-15 09:40:37 +02:00
ipx
ipx: call ipxitf_put() in ioctl error path
2017-05-25 14:30:13 +02:00
irda
irda: Only insert new objects into the global database via setsockopt
2018-09-15 09:40:40 +02:00
iucv
net/iucv: Free memory obtained by kzalloc
2018-03-31 18:12:33 +02:00
key
af_key: Always verify length of provided sadb_key
2018-06-16 09:54:25 +02:00
l2tp
l2tp: use sk_dst_check() to avoid race on sk->sk_dst_cache
2018-08-22 07:48:35 +02:00
l3mdev
net: Add netif_is_l3_slave
2015-10-07 04:27:43 -07:00
lapb
…
llc
llc: use refcount_inc_not_zero() for llc_sap_find()
2018-08-22 07:48:35 +02:00
mac80211
mac80211: add stations tied to AP_VLANs during hw reconfig
2018-09-05 09:18:33 +02:00
mac802154
net: mac802154: tx: expand tailroom if necessary
2018-09-09 20:04:32 +02:00
mpls
mpls, nospec: Sanitize array index in mpls_label_ok()
2018-03-11 16:19:47 +01:00
netfilter
netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user
2018-09-19 22:48:59 +02:00
netlabel
netlabel: If PF_INET6, check sk_buff ip header version
2018-05-30 07:49:17 +02:00
netlink
netlink: Don't shift on 64 for ngroups
2018-08-09 12:19:28 +02:00
netrom
…
nfc
net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL.
2018-07-22 14:25:54 +02:00
openvswitch
openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found
2018-05-26 08:48:47 +02:00
packet
packet: refine ring v3 block size test to hold one frame
2018-08-24 13:27:01 +02:00
phonet
phonet: properly unshare skbs in phonet_rcv()
2016-01-31 11:29:00 -08:00
rds
rds: avoid unenecessary cong_update in loop transport
2018-07-22 14:25:54 +02:00
rfkill
rfkill: gpio: fix memory leak in probe error path
2018-05-16 10:06:51 +02:00
rose
…
rxrpc
rxrpc: check return value of skb_to_sgvec always
2018-04-13 19:50:23 +02:00
sched
sch_tbf: fix two null pointer dereferences on init failure
2018-09-15 09:40:42 +02:00
sctp
sctp: delay the authentication for the duplicated cookie-echo chunk
2018-05-26 08:48:49 +02:00
sunrpc
rpc_pipefs: fix double-dput()
2018-04-24 09:32:11 +02:00
switchdev
switchdev: pass pointer to fib_info instead of copy
2016-06-24 10:18:16 -07:00
tipc
tipc: add policy for TIPC_NLA_NET_ADDR
2018-04-29 07:50:06 +02:00
unix
net/unix: don't show information about sockets from other namespaces
2017-11-18 11:11:06 +01:00
vmw_vsock
vsock: split dwork to avoid reinitializations
2018-08-22 07:48:35 +02:00
wimax
net:wimax: Fix doucble word "the the" in networking.xml
2015-08-09 22:43:52 -07:00
wireless
nl80211: Add a missing break in parse_station_flags
2018-09-05 09:18:34 +02:00
x25
net: x25: fix one potential use-after-free issue
2018-04-13 19:50:07 +02:00
xfrm
xfrm: free skb if nlsk pointer is NULL
2018-09-05 09:18:33 +02:00
compat.c
net: support compat 64-bit time in {s,g}etsockopt
2018-05-26 08:48:47 +02:00
Kconfig
Make DST_CACHE a silent config option
2018-02-25 11:03:37 +01:00
Makefile
net: Introduce L3 Master device abstraction
2015-09-29 20:40:32 -07:00
socket.c
net: socket: fix potential spectre v1 gadget in socketcall
2018-08-06 16:24:42 +02:00
sysctl_net.c
net: Use ns_capable_noaudit() when determining net sysctl permissions
2016-09-15 08:27:50 +02:00