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v5.9.8
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Saeed Mirzamohammadi 10cf2d801e netfilter: nftables_offload: KASAN slab-out-of-bounds Read in nft_flow_rule_create 
commit 31cc578ae2 upstream.

This patch fixes the issue due to:

BUG: KASAN: slab-out-of-bounds in nft_flow_rule_create+0x622/0x6a2
net/netfilter/nf_tables_offload.c:40
Read of size 8 at addr ffff888103910b58 by task syz-executor227/16244

The error happens when expr->ops is accessed early on before performing the boundary check and after nft_expr_next() moves the expr to go out-of-bounds.

This patch checks the boundary condition before expr->ops that fixes the slab-out-of-bounds Read issue.

Add nft_expr_more() and use it to fix this problem.

Signed-off-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-01 12:47:00 +01:00
..
9p
net: 9p: drop duplicate word in comment
2020-07-15 20:34:11 -07:00
bluetooth
Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel
2020-10-17 08:31:21 +02:00
caif
net: caif: drop duplicate words in comments
2020-07-15 20:34:11 -07:00
iucv
net/af_iucv: clean up function prototypes
2020-05-19 12:50:14 -07:00
netfilter
netfilter: nftables_offload: KASAN slab-out-of-bounds Read in nft_flow_rule_create
2020-11-01 12:47:00 +01:00
netns
netfilter: nf_tables: coalesce multiple notifications into one skbuff
2020-09-08 13:02:44 +02:00
nfc
NFC: Replace zero-length array with flexible-array member
2020-02-27 12:06:20 -08:00
phonet
…
sctp
net: sctp: Fix IPv6 ancestor_size calc in sctp_copy_descendant
2020-09-20 14:15:12 -07:00
tc_act
net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
2020-10-29 10:10:51 +01:00
6lowpan.h
6lowpan: Replace zero-length array with flexible-array member
2020-02-28 14:51:30 +01:00
act_api.h
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
addrconf.h
ipv6: some fixes for ipv6_dev_find()
2020-08-18 15:58:53 -07:00
af_ieee802154.h
…
af_rxrpc.h
rxrpc: Make rxrpc_kernel_get_srtt() indicate validity
2020-08-20 18:21:28 +01:00
af_unix.h
unix: uses an atomic type for scm files accounting
2020-02-28 12:12:53 -08:00
af_vsock.h
vsock: add local transport support in the vsock core
2019-12-11 15:01:23 -08:00
ah.h
…
arp.h
net: avoid potential false sharing in neighbor related code
2019-11-06 16:14:48 -08:00
atmclip.h
…
ax25.h
…
ax88796.h
…
bareudp.h
bareudp: Reverted support to enable & disable rx metadata collection
2020-07-21 18:30:47 -07:00
bond_3ad.h
…
bond_alb.h
bonding/alb: Add helper functions to get the xmit slave
2020-05-01 12:15:37 -07:00
bond_options.h
…
bonding.h
bonding: allow xfrm offload setup post-module-load
2020-07-01 15:53:32 -07:00
bpf_sk_storage.h
bpf: INET_DIAG support in bpf_sk_storage
2020-02-27 18:50:19 -08:00
busy_poll.h
net: Avoid overwriting valid skb->napi_id
2020-06-20 17:30:59 -07:00
calipso.h
…
cfg80211-wext.h
…
cfg80211.h
cfg80211: invert HE BSS color 'disabled' to 'enabled'
2020-07-31 09:27:02 +02:00
cfg802154.h
cfg802154: Replace zero-length array with flexible-array member
2020-02-29 14:39:08 +01:00
checksum.h
default csum_and_copy_to_user(): don't bother with access_ok()
2020-05-29 16:11:50 -04:00
cipso_ipv4.h
cipso: Remove unused inline functions
2020-07-15 07:45:24 -07:00
cls_cgroup.h
bpf: Allow to retrieve cgroup v1 classid from v2 hooks
2020-03-27 19:40:38 -07:00
codel_impl.h
…
codel_qdisc.h
…
codel.h
…
compat.h
net: simplify cBPF setsockopt compat handling
2020-07-19 18:16:40 -07:00
datalink.h
…
dcbevent.h
…
dcbnl.h
…
devlink.h
devlink: Pass extack when setting trap's action and group's parameters
2020-08-03 18:06:46 -07:00
dn_dev.h
…
dn_fib.h
net: dn_fib: Replace zero-length array with flexible-array member
2020-02-29 21:52:20 -08:00
dn_neigh.h
…
dn_nsp.h
…
dn_route.h
…
dn.h
…
drop_monitor.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
dsa.h
net: dsa: stop overriding master's ndo_get_phys_port_name
2020-07-23 15:14:58 -07:00
dsfield.h
ipv6: Annotate bitwise IPv6 dsfield pointer cast
2019-12-16 16:09:44 -08:00
dst_cache.h
…
dst_metadata.h
…
dst_ops.h
net/dst: use a smaller percpu_counter batch for dst entries accounting
2020-05-08 21:33:33 -07:00
dst.h
tunnels: PMTU discovery support for directly bridged IP packets
2020-08-04 13:01:45 -07:00
erspan.h
erspan: Add type I version 0 support.
2020-05-05 13:23:29 -07:00
esp.h
ESP: Export esp_output_fill_trailer function
2020-02-19 13:52:32 +01:00
espintcp.h
xfrm: espintcp: save and call old ->sk_destruct
2020-04-20 07:34:16 +02:00
ethoc.h
…
failover.h
…
fib_notifier.h
ipv6: Remove old route notifications and convert listeners
2019-12-24 22:37:30 -08:00
fib_rules.h
fib: use indirect call wrappers in the most common fib_rules_ops
2020-07-28 17:42:31 -07:00
firewire.h
…
flow_dissector.h
net/flow_dissector: add packet hash dissection
2020-07-24 15:23:31 -07:00
flow_offload.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-08-05 20:13:21 -07:00
flow.h
ipv4: Initialize flowi4_multipath_hash in data path
2020-09-14 14:54:56 -07:00
fou.h
…
fq_impl.h
net/fq_impl: use skb_get_hash instead of skb_get_hash_perturb
2020-07-31 09:24:24 +02:00
fq.h
net/fq_impl: use skb_get_hash instead of skb_get_hash_perturb
2020-07-31 09:24:24 +02:00
garp.h
treewide: Use sizeof_field() macro
2019-12-09 10:36:44 -08:00
gen_stats.h
net_sched: extend packet counter to 64bit
2019-11-05 18:20:55 -08:00
genetlink.h
genetlink: add missing kdoc for validation flags
2020-09-28 18:51:50 -07:00
geneve.h
…
gre.h
…
gro_cells.h
…
gtp.h
…
gue.h
GUE: Fix a typo
2020-06-22 21:12:44 -07:00
hwbm.h
net: hwbm: if CONFIG_NET_HWBM unset, make stub functions static
2019-10-25 16:24:32 -07:00
icmp.h
icmp: introduce helper for nat'd source address in network device context
2020-02-13 14:19:00 -08:00
ieee80211_radiotap.h
mac80211: add radiotap flag to prevent sequence number overwrite
2020-07-31 09:27:00 +02:00
ieee802154_netdev.h
…
if_inet6.h
ipv6: Replace zero-length array with flexible-array
2020-05-11 13:18:54 -07:00
ife.h
…
ila.h
…
inet6_connection_sock.h
…
inet6_hashtables.h
net: Track socket refcounts in skb_steal_sock()
2020-03-30 13:45:04 -07:00
inet_common.h
bpf: Allow any port in bpf_bind helper
2020-05-09 00:48:20 +02:00
inet_connection_sock.h
net: refactor bind_bucket fastreuse into helper
2020-08-11 15:49:08 -07:00
inet_ecn.h
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-03 14:34:53 -07:00
inet_frag.h
…
inet_hashtables.h
dccp: Fix possible memleak in dccp_init and dccp_fini
2020-06-09 13:26:23 -07:00
inet_sock.h
icmp: support rfc 4884
2020-07-19 19:20:22 -07:00
inet_timewait_sock.h
…
inetpeer.h
…
ip6_checksum.h
tcp: remove indirect calls for icsk->icsk_af_ops->send_check
2020-06-20 17:47:53 -07:00
ip6_fib.h
net: ip6_fib.h: drop duplicate word in comment
2020-07-15 20:34:11 -07:00
ip6_route.h
ipv6: lift copy_from_user out of ipv6_route_ioctl
2020-05-18 17:35:02 -07:00
ip6_tunnel.h
…
ip_fib.h
ipv4: nexthop version of fib_info_nh_uses_dev
2020-05-26 16:06:07 -07:00
ip_tunnels.h
tunnels: PMTU discovery support for directly bridged IP packets
2020-08-04 13:01:45 -07:00
ip_vs.h
ipvs: queue delayed work to expire no destination connections if expire_nodest_conn=1
2020-07-22 01:17:59 +02:00
ip.h
net/ipv4: always honour route mtu during forwarding
2020-09-24 19:51:16 -07:00
ipcomp.h
…
ipconfig.h
…
ipv6_frag.h
…
ipv6_stubs.h
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2020-05-29 13:02:33 -07:00
ipv6.h
net: pass a sockptr_t into ->setsockopt
2020-07-24 15:41:54 -07:00
ipx.h
bonding/alb: properly access headers in bond_alb_xmit()
2020-02-05 14:28:09 +01:00
iw_handler.h
…
kcm.h
…
l3mdev.h
l3mdev: add infrastructure for table to VRF mapping
2020-06-20 17:22:22 -07:00
lag.h
…
lapb.h
…
lib80211.h
…
llc_c_ac.h
…
llc_c_ev.h
…
llc_c_st.h
…
llc_conn.h
…
llc_if.h
…
llc_pdu.h
…
llc_s_ac.h
…
llc_s_ev.h
…
llc_s_st.h
…
llc_sap.h
…
llc.h
…
lwtunnel.h
net: add net available in build_state
2020-03-29 22:30:57 -07:00
mac80211.h
mac80211: add a function for running rx without passing skbs to the stack
2020-07-31 09:27:01 +02:00
mac802154.h
…
macsec.h
net: macsec: add support for getting offloaded stats
2020-03-26 20:17:36 -07:00
mip6.h
net: mip6: Replace zero-length array with flexible-array member
2020-03-02 11:16:27 -08:00
mld.h
net: ipv6: mld: Replace zero-length array with flexible-array member
2020-02-29 21:52:20 -08:00
mpls_iptunnel.h
net: mpls: Replace zero-length array with flexible-array member
2020-02-28 12:08:37 -08:00
mpls.h
net: Make mpls_entry_encode() available for generic users
2020-05-29 21:20:20 -07:00
mptcp.h
mptcp: subflow: add mptcp_subflow_init_cookie_req helper
2020-07-31 16:55:32 -07:00
mrp.h
treewide: Use sizeof_field() macro
2019-12-09 10:36:44 -08:00
ncsi.h
…
ndisc.h
ipv6: ndisc: adjust ndisc_ifinfo_sysctl_change prototype
2020-08-24 06:40:07 -07:00
neighbour.h
net/sysctl: remove leftover __user annotations on neigh_proc_dointvec*
2020-06-08 10:13:56 -04:00
net_failover.h
…
net_namespace.h
net: Introduce netns_bpf for BPF programs attached to netns
2020-06-01 15:21:02 -07:00
net_ratelimit.h
…
netevent.h
…
netlabel.h
…
netlink.h
netlink: fix policy dump leak
2020-10-02 13:00:38 -07:00
netprio_cgroup.h
netprio: use css ID instead of cgroup ID
2019-11-12 08:18:03 -08:00
netrom.h
…
nexthop.h
vxlan: Remove access to nexthop group struct
2020-06-10 13:20:20 -07:00
nl802154.h
…
nsh.h
…
p8022.h
…
page_pool.h
net: page_pool: API cleanup and comments
2020-02-20 10:09:25 -08:00
pie.h
pie: realign comment
2020-03-04 13:25:55 -08:00
ping.h
…
pkt_cls.h
net: sched: Do not drop root lock in tcf_qevent_handle()
2020-07-16 16:48:34 -07:00
pkt_sched.h
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-03 14:34:53 -07:00
pptp.h
…
protocol.h
…
psample.h
…
psnap.h
…
raw.h
…
rawv6.h
…
red.h
net: sched: RED: Introduce an ECN nodrop mode
2020-03-14 21:03:46 -07:00
regulatory.h
net/wireless: regulatory.h: drop duplicate word in comment
2020-07-31 09:24:23 +02:00
request_sock.h
tcp: rename request_sock cookie_ts bit to syncookie
2020-07-31 16:55:32 -07:00
rose.h
…
route.h
Remove DST_HOST
2020-03-23 21:57:44 -07:00
rpl.h
net: ipv6: Use struct_size() helper and kcalloc()
2020-06-23 20:27:09 -07:00
rsi_91x.h
…
rtnetlink.h
…
rtnh.h
…
sch_generic.h
net/sched: act_ct: fix miss set mru for ovs after defrag in act_ct
2020-08-03 15:04:48 -07:00
scm.h
fs: Move __scm_install_fd() to __receive_fd()
2020-07-13 11:03:44 -07:00
secure_seq.h
…
seg6_hmac.h
…
seg6_local.h
…
seg6.h
seg6: fix seg6_validate_srh() to avoid slab-out-of-bounds
2020-06-04 15:39:32 -07:00
slhc_vj.h
…
smc.h
net/smc: introduce bookkeeping of SMCD link groups
2019-11-15 12:28:28 -08:00
snmp.h
…
sock_reuseport.h
net: sock_reuseport: Replace zero-length array with flexible-array member
2020-02-29 21:52:19 -08:00
sock.h
Merge tag 'dlm-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
2020-08-06 19:44:25 -07:00
Space.h
…
stp.h
…
strparser.h
…
switchdev.h
switchdev: mrp: Extend switchdev API for MRP Interconnect
2020-07-14 13:46:42 -07:00
tcp_states.h
…
tcp.h
tcp: correct read of TFO keys on big endian systems
2020-08-10 12:12:35 -07:00
timewait_sock.h
…
tipc.h
…
tls_toe.h
…
tls.h
net/tls: fix sign extension issue when left shifting u16 value
2020-06-30 13:36:56 -07:00
transp_v6.h
tcp: move ipv4_specific to tcp include file
2020-06-23 20:10:15 -07:00
tso.h
net: tso: cache transport header length
2020-06-18 20:46:23 -07:00
tun_proto.h
…
udp_tunnel.h
udp_tunnel: add the ability to hard-code IANA VXLAN
2020-08-03 10:13:54 -07:00
udp.h
net/udp: switch udp_lib_setsockopt to sockptr_t
2020-07-24 15:41:54 -07:00
udplite.h
…
vsock_addr.h
vsock: remove include/linux/vm_sockets.h file
2019-11-14 18:12:17 -08:00
vxlan.h
net: sched: only keep the available bits when setting vxlan md->gbp
2020-09-14 16:49:39 -07:00
wext.h
…
wimax.h
net: wimax: fix duplicate words in comments
2020-07-15 20:34:02 -07:00
x25.h
net/x25: add new state X25_STATE_5
2019-12-09 10:28:43 -08:00
x25device.h
…
xdp_priv.h
page_pool: do not release pool until inflight == 0.
2019-11-16 12:39:10 -08:00
xdp_sock_drv.h
xsk: Remove MEM_TYPE_ZERO_COPY and corresponding code
2020-05-21 17:31:27 -07:00
xdp_sock.h
xsk: Add new statistics
2020-07-13 15:32:56 -07:00
xdp.h
bpf, xdp: Remove XDP_QUERY_PROG and XDP_QUERY_PROG_HW XDP commands
2020-07-25 20:37:02 -07:00
xfrm.h
xfrm: clone XFRMA_REPLAY_ESN_VAL in xfrm_do_migrate
2020-09-07 12:45:22 +02:00
xsk_buff_pool.h
xsk: Replace the cheap_dma flag with a dma_need_sync flag
2020-06-30 15:44:03 +02:00