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android_kernel_oneplus_msm8998/net
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Hangbin Liu 9a24e9286b sit: check if IPv6 enabled before calling ip6_err_gen_icmpv6_unreach() 
[ Upstream commit 173656accaf583698bac3f9e269884ba60d51ef4 ]

If we disabled IPv6 from the kernel command line (ipv6.disable=1), we should
not call ip6_err_gen_icmpv6_unreach(). This:

  ip link add sit1 type sit local 192.0.2.1 remote 192.0.2.2 ttl 1
  ip link set sit1 up
  ip addr add 198.51.100.1/24 dev sit1
  ping 198.51.100.2

if IPv6 is disabled at boot time, will crash the kernel.

v2: there's no need to use in6_dev_get(), use __in6_dev_get() instead,
    as we only need to check that idev exists and we are under
    rcu_read_lock() (from netif_receive_skb_internal()).

Reported-by: Jianlin Shi <jishi@redhat.com>
Fixes: ca15a078bd ("sit: generate icmpv6 error when receiving icmpv4 error")
Cc: Oussama Ghorbel <ghorbel@pivasoftware.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-23 08:44:18 +01:00
..
6lowpan 6lowpan: iphc: reset mac_header after decompress to fix panic 2018-10-10 08:52:04 +02:00
9p 9p/net: put a lower bound on msize 2019-01-13 10:05:33 +01:00
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 possible use-after-free 2019-02-23 09:05:14 +01:00
batman-adv batman-adv: fix uninit-value in batadv_interface_tx() 2019-03-23 08:44:17 +01:00
bluetooth Bluetooth: Fix unnecessary error message for HCI request completion 2019-02-20 10:13:10 +01:00
bridge net: bridge: Fix ethernet header pointer before check skb forwardable 2019-02-06 19:43:03 +01:00
caif net: caif: Add a missing rcu_read_unlock() in caif_flow_cb 2018-09-05 09:18:34 +02:00
can can: bcm: check timer values before ktime conversion 2019-02-06 19:43:04 +01:00
ceph libceph: avoid KEEPALIVE_PENDING races in ceph_con_keepalive() 2019-02-20 10:13:20 +01:00
core net: Do not allocate page fragments that are not skb aligned 2019-02-23 09:05:14 +01:00
dcb net: dcb: For wild-card lookups, use priority -1, not 0 2018-09-19 22:48:58 +02:00
dccp dccp: fool proof ccid_hc_[rt]x_parse_options() 2019-02-20 10:13:15 +01:00
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: slave: Don't propagate flag changes on down slave interfaces 2019-02-20 10:13:15 +01:00
ethernet net: introduce device min_header_len 2017-02-18 16:39:27 +01:00
hsr
ieee802154 inet: frags: fix ip6frag_low_thresh boundary 2019-02-08 11:25:32 +01:00
ipv4 net: ipv4: use a dedicated counter for icmp_v4 redirect packets 2019-02-23 09:05:14 +01:00
ipv6 sit: check if IPv6 enabled before calling ip6_err_gen_icmpv6_unreach() 2019-03-23 08:44:18 +01:00
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 af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers 2018-11-10 07:41:35 -08:00
key af_key: Always verify length of provided sadb_key 2018-06-16 09:54:25 +02:00
l2tp l2tp: fix reading optional fields of L2TPv3 2019-02-06 19:43:06 +01:00
l3mdev
lapb
llc llc: do not use sk_eat_skb() 2018-12-01 09:46:34 +01:00
mac80211 mac80211: ensure that mgmt tx skbs have tailroom for encryption 2019-02-20 10:13:19 +01:00
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: nf_tables: fix oops when inserting an element into a verdict map 2018-12-01 09:46:40 +01:00
netlabel netlabel: check for IPV4MASK in addrinfo_get 2018-10-20 09:52:36 +02:00
netlink netlink: Don't shift on 64 for ngroups 2018-08-09 12:19:28 +02:00
netrom netrom: switch to sock timer API 2019-02-06 19:43:06 +01:00
nfc NFC: Fix possible memory corruption when handling SHDLC I-Frame commands 2018-09-29 03:08:51 -07:00
openvswitch openvswitch: Avoid OOB read when parsing flow nlattrs 2019-02-06 19:43:03 +01:00
packet net/packet: fix 4gb buffer limit due to overflow check 2019-03-23 08:44:17 +01:00
phonet
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 net/rose: fix NULL ax25_cb kernel panic 2019-02-06 19:43:06 +01:00
rxrpc rxrpc: check return value of skb_to_sgvec always 2018-04-13 19:50:23 +02:00
sched net_sched: refetch skb protocol for each filter 2019-02-06 19:43:03 +01:00
sctp sctp: allocate sctp_sockaddr_entry with kzalloc 2019-01-26 09:42:51 +01:00
sunrpc sunrpc: handle ENOMEM in rpcb_getport_async 2019-01-26 09:42:51 +01:00
switchdev
tipc tipc: use destination length for copy string 2019-02-20 10:13:14 +01:00
unix net: drop write-only stack variable 2018-11-10 07:41:34 -08:00
vmw_vsock vsock: cope with memory allocation failure at socket creation time 2019-02-23 09:05:13 +01:00
wimax
wireless cfg80211: reg: Init wiphy_idx in regulatory_hint_core() 2018-11-10 07:41:33 -08:00
x25 net/x25: do not hold the cpu too long in x25_new_lci() 2019-02-23 09:05:14 +01:00
xfrm xfrm: refine validation of template and selector families 2019-02-20 10:13:20 +01:00
compat.c sock: Make sock->sk_stamp thread-safe 2019-01-13 10:05:28 +01:00
Kconfig Make DST_CACHE a silent config option 2018-02-25 11:03:37 +01:00
Makefile
socket.c net: socket: fix a missing-check bug 2018-11-10 07:41:41 -08:00
sysctl_net.c net: Use ns_capable_noaudit() when determining net sysctl permissions 2016-09-15 08:27:50 +02:00