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Cong Wang 8c1374509e netfilter: xt_hashlimit: limit the max size of hashtable 
commit 8d0015a7ab upstream.

The user-specified hashtable size is unbound, this could
easily lead to an OOM or a hung task as we hold the global
mutex while allocating and initializing the new hashtable.

Add a max value to cap both cfg->size and cfg->max, as
suggested by Florian.

Reported-and-tested-by: syzbot+adf6c6c2be1c3a718121@syzkaller.appspotmail.com
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-28 15:42:56 +01:00
..
6lowpan
6lowpan: Off by one handling ->nexthdr
2020-01-29 10:24:22 +01:00
9p
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802
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8021q
vlan: fix memory leak in vlan_dev_set_egress_priority
2020-01-12 11:24:27 +01:00
appletalk
appletalk: Set error code if register_snap_client failed
2019-12-21 10:41:45 +01:00
atm
…
ax25
…
batman-adv
batman-adv: Fix DAT candidate selection on little endian systems
2020-01-23 08:19:41 +01:00
bluetooth
Bluetooth: Fix race condition in hci_release_sock()
2020-02-05 13:05:47 +00:00
bridge
netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule
2020-01-29 10:24:24 +01:00
caif
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can
…
ceph
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core
net: Fix skb->csum update in inet_proto_csum_replace16().
2020-02-05 13:05:56 +00:00
dcb
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dccp
dccp: Fix memleak in __feat_register_sp
2020-01-23 08:19:34 +01:00
decnet
decnet: fix DN_IFREQ_SIZE
2019-12-05 15:35:12 +01:00
dns_resolver
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dsa
net: dsa: tag_qca: fix doubled Tx statistics
2020-01-23 08:19:41 +01:00
ethernet
net: add annotations on hh->hh_len lockless accesses
2020-01-12 11:24:19 +01:00
hsr
net: hsr: fix possible NULL deref in hsr_handle_frame()
2020-02-14 16:30:58 -05:00
ieee802154
inet: frags: call inet_frags_fini() after unregister_pernet_subsys()
2020-01-29 10:24:25 +01:00
ipv4
tcp: clear tp->segs_{in|out} in tcp_disconnect()
2020-02-14 16:30:59 -05:00
ipv6
vti[6]: fix packet tx through bpf_redirect()
2020-02-05 13:05:51 +00:00
ipx
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irda
…
iucv
net/af_iucv: always register net_device notifier
2020-01-29 10:24:26 +01:00
kcm
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key
…
l2tp
l2tp: Fix possible NULL pointer dereference
2020-01-29 10:24:23 +01:00
l3mdev
…
lapb
…
llc
llc: fix sk_buff refcounting in llc_conn_state_process()
2020-01-29 10:24:33 +01:00
mac80211
mac80211: Fix TKIP replay protection immediately after key setup
2020-02-05 13:05:50 +00:00
mac802154
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mpls
…
ncsi
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netfilter
netfilter: xt_hashlimit: limit the max size of hashtable
2020-02-28 15:42:56 +01:00
netlabel
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netlink
…
netrom
…
nfc
net: nfc: nci: fix a possible sleep-in-atomic-context bug in nci_uart_tty_receive()
2020-01-04 13:40:16 +01:00
openvswitch
openvswitch: support asymmetric conntrack
2019-12-21 10:42:23 +01:00
packet
packet: fix data-race in fanout_flow_is_huge()
2020-01-29 10:24:35 +01:00
phonet
…
qrtr
…
rds
net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names'
2020-01-29 10:24:32 +01:00
rfkill
rfkill: Fix incorrect check to avoid NULL pointer dereference
2020-01-12 11:24:23 +01:00
rose
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rxrpc
rxrpc: Fix service call disconnection
2020-02-14 16:31:08 -05:00
sched
net/sched: flower: add missing validation of TCA_FLOWER_FLAGS
2020-02-28 15:42:44 +01:00
sctp
sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY
2020-01-12 11:24:26 +01:00
strparser
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sunrpc
sunrpc: expiry_time should be seconds not timeval
2020-02-14 16:31:03 -05:00
switchdev
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tipc
tipc: set sysctl_tipc_rmem and named_timeout right range
2020-01-29 10:24:21 +01:00
unix
net: fix warning in af_unix
2019-11-28 18:28:28 +01:00
vmw_vsock
VSOCK: bind to random port for VMADDR_PORT_ANY
2019-12-05 15:34:26 +01:00
wimax
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wireless
wireless: wext: avoid gcc -O3 warning
2020-02-05 13:05:51 +00:00
x25
net/x25: fix nonblocking connect
2020-01-29 10:24:41 +01:00
xfrm
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compat.c
…
Kconfig
…
Makefile
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socket.c
compat_ioctl: handle SIOCOUTQNSD
2020-01-23 08:19:36 +01:00
sysctl_net.c
…