Tejaswi Tanikella 3f01ddb962 slip: Check if rstate is initialized before uncompressing ... On receiving a packet the state index points to the rstate which must be used to fill up IP and TCP headers. But if the state index points to a rstate which is unitialized, i.e. filled with zeros, it gets stuck in an infinite loop inside ip_fast_csum trying to compute the ip checsum of a header with zero length. 89.666953: <2> [<ffffff9dd3e94d38>] slhc_uncompress+0x464/0x468 89.666965: <2> [<ffffff9dd3e87d88>] ppp_receive_nonmp_frame+0x3b4/0x65c 89.666978: <2> [<ffffff9dd3e89dd4>] ppp_receive_frame+0x64/0x7e0 89.666991: <2> [<ffffff9dd3e8a708>] ppp_input+0x104/0x198 89.667005: <2> [<ffffff9dd3e93868>] pppopns_recv_core+0x238/0x370 89.667027: <2> [<ffffff9dd4428fc8>] __sk_receive_skb+0xdc/0x250 89.667040: <2> [<ffffff9dd3e939e4>] pppopns_recv+0x44/0x60 89.667053: <2> [<ffffff9dd4426848>] __sock_queue_rcv_skb+0x16c/0x24c 89.667065: <2> [<ffffff9dd4426954>] sock_queue_rcv_skb+0x2c/0x38 89.667085: <2> [<ffffff9dd44f7358>] raw_rcv+0x124/0x154 89.667098: <2> [<ffffff9dd44f7568>] raw_local_deliver+0x1e0/0x22c 89.667117: <2> [<ffffff9dd44c8ba0>] ip_local_deliver_finish+0x70/0x24c 89.667131: <2> [<ffffff9dd44c92f4>] ip_local_deliver+0x100/0x10c ./scripts/faddr2line vmlinux slhc_uncompress+0x464/0x468 output: ip_fast_csum at arch/arm64/include/asm/checksum.h:40 (inlined by) slhc_uncompress at drivers/net/slip/slhc.c:615 Adding a variable to indicate if the current rstate is initialized. If such a packet arrives, move to toss state. Signed-off-by: Tejaswi Tanikella <tejaswit@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-04-11 10:33:46 -04:00
..
9p	9p: Implement show_options	2017-07-11 06:08:58 -04:00
bluetooth	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth	2018-04-08 17:19:15 -04:00
caif	caif: reduce stack size with KASAN	2018-01-19 14:02:12 -05:00
iucv	net: annotate ->poll() instances	2017-11-27 16:20:04 -05:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-04-01 19:49:34 -04:00
netns	ip6mr: Support fib notifications	2018-03-26 13:14:43 -04:00
nfc	NFC: Add nfc_dbg() macro	2017-04-05 10:15:20 +02:00
phonet	net: phonet: mark phonet_protocol as const	2017-10-07 23:15:08 +01:00
sctp	selinux/stable-4.17 PR 20180403	2018-04-06 15:39:26 -07:00
tc_act	net/sched: act_csum: don't use spinlock in the fast path	2018-01-23 19:51:46 -05:00
6lowpan.h	6lowpan: Fix IID format for Bluetooth	2017-04-12 22:02:36 +02:00
Space.h	net/mac89x0: Convert to platform_driver	2018-03-01 21:21:36 -05:00
act_api.h	net/sched: remove tcf_idr_cleanup()	2018-03-23 21:52:19 -04:00
addrconf.h	bpf: Hooks for sys_connect	2018-03-31 02:15:54 +02:00
af_ieee802154.h	…
af_rxrpc.h	rxrpc, afs: Use debug_ids rather than pointers in traces	2018-03-27 23:03:00 +01:00
af_unix.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
af_vsock.h	VSOCK: use TCP state constants for sk_state	2017-10-05 18:44:17 -07:00
ah.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
arp.h	ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY	2018-01-15 14:53:43 -05:00
atmclip.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ax25.h	net: Make ax25_ptr depend on CONFIG_AX25	2018-02-14 11:55:33 -05:00
ax88796.h	…
bond_3ad.h	…
bond_alb.h	…
bond_options.h	bonding: Prevent duplicate userspace notification	2017-05-27 18:51:41 -04:00
bonding.h	bonding: remove rtmsg_ifinfo called after bond_lower_state_changed	2017-10-25 10:54:39 +09:00
busy_poll.h	net: fix compilation when busy poll is not enabled	2017-08-11 14:59:24 -07:00
calipso.h	net, calipso: convert calipso_doi.refcount from atomic_t to refcount_t	2017-07-04 22:35:16 +01:00
cfg80211-wext.h	…
cfg80211.h	nl80211: Add control_port_over_nl80211 to mesh_setup	2018-03-29 14:01:27 +02:00
cfg802154.h	…
checksum.h	csum: eliminate sparse warning in remcsum_unadjust()	2017-01-20 12:12:13 -05:00
cipso_ipv4.h	net, ipv4: convert cipso_v4_doi.refcount from atomic_t to refcount_t	2017-07-04 01:29:04 -07:00
cls_cgroup.h	…
codel.h	…
codel_impl.h	…
codel_qdisc.h	…
compat.h	net: remove compat_sys_*() prototypes from net/compat.h	2018-04-02 20:16:17 +02:00
datalink.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dcbevent.h	…
dcbnl.h	…
devlink.h	devlink: convert occ_get op to separate registration	2018-04-08 12:45:57 -04:00
dn.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
dn_dev.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dn_fib.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dn_neigh.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dn_nsp.h	net/decnet: Convert timers to use timer_setup()	2017-10-18 12:39:36 +01:00
dn_route.h	decnet: Move dn_next into decnet route structure.	2017-11-30 09:54:25 -05:00
dsa.h	dsa: Pass the port to get_sset_count()	2018-03-04 13:34:18 -05:00
dsfield.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dst.h	net: core: dst: Add kernel-doc for 'net' parameter	2018-03-05 12:52:45 -05:00
dst_cache.h	net: core: dst_cache_set_ip6: Rename 'addr' parameter to 'saddr' for consistency	2018-03-05 12:52:45 -05:00
dst_metadata.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
dst_ops.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
erspan.h	net: erspan: fix metadata extraction	2018-02-06 11:32:48 -05:00
esp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ethoc.h	inet: whitespace cleanup	2018-02-28 11:43:28 -05:00
fib_notifier.h	net: Add extack to fib_notifier_info	2017-11-01 11:50:43 +09:00
fib_rules.h	net/ipv6: Pass skb to route lookup	2018-03-04 13:04:22 -05:00
firewire.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
flow.h	net: Remove unused get_hash_from_flow functions	2018-03-04 13:04:23 -05:00
flow_dissector.h	tipc: improve link resiliency when rps is activated	2017-11-11 15:36:05 +09:00
fou.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fq.h	fq: support filtering a given tin	2017-10-11 09:49:34 +02:00
fq_impl.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-10-30 21:09:24 +09:00
garp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
gen_stats.h	net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mq	2017-12-08 13:32:26 -05:00
genetlink.h	genetlink: fix genlmsg_nlhdr()	2017-11-16 10:49:00 +09:00
geneve.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
gre.h	net: GRE: Add is_gretap_dev, is_ip6gretap_dev	2018-02-27 14:46:26 -05:00
gro_cells.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
gtp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
gue.h	fou: fix some member types in guehdr	2017-12-11 14:10:06 -05:00
hwbm.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
icmp.h	…
ieee80211_radiotap.h	mac80211: support reporting A-MPDU EOF bit value/known	2018-02-22 21:13:02 +01:00
ieee802154_netdev.h	…
if_inet6.h	net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_t	2017-07-04 01:29:04 -07:00
ife.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ila.h	…
inet6_connection_sock.h	inet: drop ->bind_conflict	2017-01-18 13:04:28 -05:00
inet6_hashtables.h	net: ipv6: add second dif to inet6 socket lookups	2017-08-07 11:39:22 -07:00
inet_common.h	net: Introduce __inet_bind() and __inet6_bind	2018-03-31 02:15:43 +02:00
inet_connection_sock.h	inet: whitespace cleanup	2018-02-28 11:43:28 -05:00
inet_ecn.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
inet_frag.h	inet: frags: reorganize struct netns_frags	2018-03-31 23:25:39 -04:00
inet_hashtables.h	inet: Add a 2nd listener hashtable (port+addr)	2017-12-03 10:18:28 -05:00
inet_sock.h	net: sock: replace sk_state_load with inet_sk_state_load and remove sk_state_store	2017-12-20 14:00:25 -05:00
inet_timewait_sock.h	soreuseport: initialise timewait reuseport field	2018-04-07 22:32:32 -04:00
inetpeer.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ip.h	inet: frags: remove some helpers	2018-03-31 23:25:39 -04:00
ip6_checksum.h	…
ip6_fib.h	net/ipv6: Pass skb to route lookup	2018-03-04 13:04:22 -05:00
ip6_route.h	ipv6: add a wrapper for ip6_dst_store() with flowi6 checks	2018-04-04 11:31:57 -04:00
ip6_tunnel.h	ip6_gre: add erspan v2 support	2017-12-15 12:34:00 -05:00
ip_fib.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-03-23 11:31:58 -04:00
ip_tunnels.h	net: do not create fallback tunnels for non-default namespaces	2018-03-09 11:23:11 -05:00
ip_vs.h	netfilter: ipvs: Remove useless ipvsh param of frag_safe_skb_hp	2018-01-08 18:01:02 +01:00
ipcomp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ipconfig.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ipv6.h	ipv6: allow to cache dst for a connected sk in ip6_sk_dst_lookup_flow()	2018-04-04 11:31:57 -04:00
ipx.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
iw_handler.h	net: Spelling s/stucture/structure/	2018-03-27 09:51:23 +02:00
kcm.h	…
l3mdev.h	…
lapb.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
lib80211.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
llc.h	net, llc: convert llc_sap.refcnt from atomic_t to refcount_t	2017-07-04 22:35:15 +01:00
llc_c_ac.h	net: LLC: Convert timers to use timer_setup()	2017-10-25 12:06:25 +09:00
llc_c_ev.h	…
llc_c_st.h	…
llc_conn.h	llc: properly handle dev_queue_xmit() return value	2018-03-27 11:56:00 -04:00
llc_if.h	…
llc_pdu.h	…
llc_s_ac.h	…
llc_s_ev.h	…
llc_s_st.h	…
llc_sap.h	…
lwtunnel.h	net: Move ipv4 set_lwt_redirect helper to lwtunnel	2018-02-14 14:43:32 -05:00
mac80211.h	We have a fair number of patches, but many of them are from the	2018-03-29 16:23:26 -04:00
mac802154.h	…
mip6.h	…
mld.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mpls.h	…
mpls_iptunnel.h	net: mpls: Increase max number of labels for lwt encap	2017-04-01 20:21:44 -07:00
mrp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ncsi.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ndisc.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
neighbour.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
net_namespace.h	net: Introduce net_rwsem to protect net_namespace_list	2018-03-29 13:47:53 -04:00
net_ratelimit.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
netevent.h	net/ipv6: Add support for path selection using hash of 5-tuple	2018-03-04 13:04:23 -05:00
netlabel.h	net: convert netlbl_lsm_cache.refcount from atomic_t to refcount_t	2017-07-01 07:39:09 -07:00
netlink.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
netprio_cgroup.h	…
netrom.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nexthop.h	net: fix rtnh_ok()	2018-04-07 22:32:31 -04:00
nl802154.h	…
nsh.h	openvswitch: enable NSH support	2017-11-08 16:12:33 +09:00
p8022.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ping.h	…
pkt_cls.h	net: sch: prio: Add offload ability for grafting a child	2018-02-28 12:06:01 -05:00
pkt_sched.h	net: remove prototype of qdisc_lookup_class()	2018-01-16 14:56:54 -05:00
pptp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
protocol.h	IPv4: early demux can return an error code	2017-10-01 03:55:47 +01:00
psample.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
psnap.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
raw.h	net: ipv4: add second dif to raw socket lookups	2017-08-07 11:39:21 -07:00
rawv6.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
red.h	net_sched: red: Avoid illegal values	2017-12-05 14:37:13 -05:00
regulatory.h	cfg80211: read wmm rules from regulatory database	2018-03-29 11:11:40 +02:00
request_sock.h	tcp: socket option to set TCP fast open key	2017-10-20 13:21:36 +01:00
rose.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
route.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-03-23 11:31:58 -04:00
rsi_91x.h	Bluetooth: btrsi: add new rsi bluetooth driver	2018-03-13 18:37:02 +02:00
rtnetlink.h	rtnetlink: remove __rtnl_register	2017-12-04 11:32:53 -05:00
sch_generic.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-04-01 19:49:34 -04:00
scm.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
secure_seq.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
seg6.h	ipv6: sr: add support for ip4ip6 encapsulation	2017-08-25 17:10:23 -07:00
seg6_hmac.h	…
slhc_vj.h	slip: Check if rstate is initialized before uncompressing	2018-04-11 10:33:46 -04:00
smc.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
snmp.h	…
sock.h	slab: make usercopy region 32-bit	2018-04-05 21:36:24 -07:00
sock_reuseport.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
stp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
strparser.h	strparser: Use delayed work instead of timer for msg timeout	2017-10-25 10:37:11 +09:00
switchdev.h	net: bridge: Add/del switchdev object on host join/leave	2017-11-10 13:41:40 +09:00
tcp.h	tcp_bbr: better deal with suboptimal GSO (II)	2018-03-01 21:44:28 -05:00
tcp_states.h	tcp: remove the hardcode in the definition of TCPF Macro	2018-02-21 15:06:05 -05:00
timewait_sock.h	…
tipc.h	tipc: improve link resiliency when rps is activated	2017-11-11 15:36:05 +09:00
tls.h	tls: support for Inline tls record	2018-03-31 23:37:32 -04:00
transp_v6.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
tso.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
tun_proto.h	vxlan: factor out VXLAN-GPE next protocol	2017-08-29 15:16:52 -07:00
udp.h	bpf: Hooks for sys_connect	2018-03-31 02:15:54 +02:00
udp_tunnel.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
udplite.h	udplite: fix partial checksum initialization	2018-02-16 15:57:42 -05:00
vsock_addr.h	…
vxlan.h	vxlan: Fix trailing semicolon	2018-01-17 16:07:24 -05:00
wext.h	lift handling of SIOCIW... out of dev_ioctl()	2018-01-24 19:13:45 -05:00
wimax.h	…
x25.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
x25device.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xdp.h	xdp/qede: setup xdp_rxq_info and intro xdp_rxq_info_is_reg	2018-01-05 15:21:21 -08:00
xfrm.h	xfrm: Register xfrm_dev_notifier in appropriate place	2018-03-30 10:59:23 -04:00