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linux/net/ipv6
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Paolo Abeni 9c48060141 udp: fix jump label misuse 
The commit 60fb9567bf30 ("udp: implement complete book-keeping for
encap_needed") introduced a severe misuse of jump label APIs, which
syzbot, as reported by Eric, was able to exploit.

When multiple sockets/process can concurrently request (and than
disable) the udp encap, we need to track the activation counter with
*_inc()/*_dec() jump label variants, or we can experience bad things
at disable time.

Fixes: 60fb9567bf30 ("udp: implement complete book-keeping for encap_needed")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-16 23:01:56 -08:00
..
ila
ila: remove blank lines at EOF
2018-07-24 14:10:42 -07:00
netfilter
netfilter: ipv6: fix oops when defragmenting locally generated fragments
2018-10-25 10:18:26 +02:00
addrconf_core.c
net/ipv6: Add helper to return path MTU based on fib result
2018-05-22 10:51:09 +02:00
addrconf.c
net/{ipv4,ipv6}: Do not put target net if input nsid is invalid
2018-10-25 16:21:31 -07:00
addrlabel.c
net/ipv6: Update ip6addrlbl_dump for strict data checking
2018-10-08 10:39:05 -07:00
af_inet6.c
net/ipv6: Add anycast addresses to a global hashtable
2018-11-02 23:54:56 -07:00
ah6.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-11-15 11:56:19 -08:00
anycast.c
net/ipv6: compute anycast address hash only if dev is null
2018-11-08 17:04:43 -08:00
calipso.c
ipv6: make ipv6_renew_options() interrupt/kernel safe
2018-07-05 20:15:26 +09:00
datagram.c
net: ensure unbound datagram socket to be chosen when not in a VRF
2018-11-07 16:12:38 -08:00
esp6_offload.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2018-07-27 09:33:37 -07:00
esp6.c
esp: remove redundant define esph
2018-08-29 08:02:43 +02:00
exthdrs_core.c
net: ipv6: Fix typo in ipv6_find_hdr() documentation
2018-05-07 23:50:27 -04:00
exthdrs_offload.c
…
exthdrs.c
ipv6: make ipv6_renew_options() interrupt/kernel safe
2018-07-05 20:15:26 +09:00
fib6_notifier.c
net: Add module reference to FIB notifiers
2017-09-01 20:33:42 -07:00
fib6_rules.c
net/ipv6: Add fib6_lookup
2018-05-11 00:10:56 +02:00
fou6.c
fou, fou6: ICMP error handlers for FoU and GUE
2018-11-08 17:13:08 -08:00
icmp.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
inet6_connection_sock.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-01-28 10:33:06 -05:00
inet6_hashtables.c
net: ensure unbound stream socket to be chosen when not in a VRF
2018-11-07 16:12:38 -08:00
ip6_checksum.c
net: udp: fix handling of CHECKSUM_COMPLETE packets
2018-10-24 14:18:16 -07:00
ip6_fib.c
ipv6: properly check return value in inet6_dump_all()
2018-11-05 17:04:54 -08:00
ip6_flowlabel.c
ipv6: fold sockcm_cookie into ipcm6_cookie
2018-07-07 10:58:49 +09:00
ip6_gre.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
ip6_icmp.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip6_input.c
ipv6: factor out protocol delivery helper
2018-11-07 16:23:05 -08:00
ip6_offload.c
ipv6: gro: do not use slow memcmp() in ipv6_gro_receive()
2018-11-06 14:59:27 -08:00
ip6_offload.h
udp: Add GRO functions to UDP socket
2016-04-07 16:53:29 -04:00
ip6_output.c
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
2018-09-18 09:33:27 -07:00
ip6_tunnel.c
ip6_tunnel: Fix encapsulation layout
2018-10-18 16:54:40 -07:00
ip6_udp_tunnel.c
ip6_udp_tunnel: remove unused IPCB related codes
2016-11-02 15:18:36 -04:00
ip6_vti.c
vti6: remove !skb->ignore_df check from vti6_xmit()
2018-08-29 17:51:44 -07:00
ip6mr.c
net: Don't return invalid table id error when dumping all families
2018-10-24 14:06:25 -07:00
ipcomp6.c
net: inet: Support UID-based routing in IP protocols.
2016-11-04 14:45:23 -04:00
ipv6_sockglue.c
ipv6: allow ping to link-local address in VRF
2018-11-07 16:12:39 -08:00
Kconfig
net: remove blank lines at end of file
2018-07-24 14:10:43 -07:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mcast_snoop.c
…
mcast.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-10-19 11:03:06 -07:00
mip6.c
ktime: Get rid of ktime_equal()
2016-12-25 17:21:23 +01:00
ndisc.c
ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
2018-10-26 15:58:06 -07:00
netfilter.c
netfilter: utils: move nf_ip6_checksum* from ipv6 to utils
2018-07-16 17:51:48 +02:00
output_core.c
net: accept UFO datagrams from tuntap and packet
2017-11-24 01:37:35 +09:00
ping.c
ipv6: fold sockcm_cookie into ipcm6_cookie
2018-07-07 10:58:49 +09:00
proc.c
proc: introduce proc_create_net_single
2018-05-16 07:24:30 +02:00
protocol.c
net: Add sysctl to toggle early demux for tcp and udp
2017-03-24 13:17:07 -07:00
raw.c
net: fix raw socket lookup device bind matching with VRFs
2018-11-07 16:12:39 -08:00
reassembly.c
net/ipfrag: let ip[6]frag_high_thresh in ns be higher than in init_net
2018-09-21 19:45:52 -07:00
route.c
net: Add extack argument to ip_fib_metrics_init
2018-11-06 15:00:45 -08:00
seg6_hmac.c
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
2018-07-03 10:29:26 +09:00
seg6_iptunnel.c
ipv6: sr: fix useless rol32 call on hash
2018-07-18 15:10:47 -07:00
seg6_local.c
bpf: add End.DT6 action to bpf_lwt_seg6_action helper
2018-07-31 09:22:48 +02:00
seg6.c
rhashtable: split rhashtable.h
2018-06-22 13:43:27 +09:00
sit.c
net-ipv4: remove 2 always zero parameters from ipv4_redirect()
2018-09-26 20:30:55 -07:00
syncookies.c
net/ipv4: disable SMC TCP option with SYN Cookies
2018-03-25 20:53:54 -04:00
sysctl_net_ipv6.c
ipv6: sr: Compute flowlabel for outer IPv6 header of seg6 encap mode
2018-04-25 13:02:15 -04:00
tcp_ipv6.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
tcpv6_offload.c
net: Convert GRO SKB handling to list_head.
2018-06-26 11:33:04 +09:00
tunnel6.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
udp_impl.h
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
udp_offload.c
udp: implement GRO for plain UDP sockets.
2018-11-07 16:23:04 -08:00
udp.c
udp: fix jump label misuse
2018-11-16 23:01:56 -08:00
udplite.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
xfrm6_input.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm6_mode_beet.c
networking: make skb_pull & friends return void pointers
2017-06-16 11:48:39 -04:00
xfrm6_mode_ro.c
ipv6: xfrm: use 64-bit timestamps
2018-07-11 15:26:35 +02:00
xfrm6_mode_transport.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm6_mode_tunnel.c
xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto
2018-03-07 10:54:29 +01:00
xfrm6_output.c
xfrm6: call kfree_skb when skb is toobig
2018-09-03 07:37:57 +02:00
xfrm6_policy.c
net/xfrm: fix out-of-bounds packet access
2018-10-11 13:24:46 +02:00
xfrm6_protocol.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
xfrm6_state.c
xfrm: remove VLA usage in __xfrm6_sort()
2018-04-26 07:51:48 +02:00
xfrm6_tunnel.c
xfrm: Fix warning in xfrm6_tunnel_net_exit.
2018-04-16 07:50:09 +02:00