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linux/include/net
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Eric Dumazet c7c49b8fde net: add pfmemalloc check in sk_add_backlog() 
Greg reported crashes hitting the following check in __sk_backlog_rcv()

	BUG_ON(!sock_flag(sk, SOCK_MEMALLOC));

The pfmemalloc bit is currently checked in sk_filter().

This works correctly for TCP, because sk_filter() is ran in
tcp_v[46]_rcv() before hitting the prequeue or backlog checks.

For UDP or other protocols, this does not work, because the sk_filter()
is ran from sock_queue_rcv_skb(), which might be called _after_ backlog
queuing if socket is owned by user by the time packet is processed by
softirq handler.

Fixes: b4b9e35585 ("netvm: set PF_MEMALLOC as appropriate during SKB processing")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Greg Thelen <gthelen@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-17 05:01:11 -07:00
..
9p 9p: switch p9_client_read() to passing struct iov_iter * 2015-04-11 22:28:27 -04:00
bluetooth Bluetooth: add hci_connect_le_scan 2015-08-10 21:36:13 +02:00
caif
irda
iucv
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2015-09-05 21:57:42 -07:00
netns Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-08-04 23:57:45 -07:00
nfc nfc: netlink: Add capability to reply to vendor_cmd with data 2015-08-20 22:00:11 +02:00
phonet
sctp sctp: fix ASCONF list handling 2015-06-14 12:55:49 -07:00
tc_act net_sched: act_bpf: remove spinlock in fast path 2015-08-26 11:01:45 -07:00
6lowpan.h 6lowpan: add generic 6lowpan netdev private data 2015-08-11 22:05:36 +02:00
act_api.h net_sched: make tcf_hash_destroy() static 2015-08-26 11:01:44 -07:00
addrconf.h Changes for 4.3 2015-09-09 08:33:31 -07:00
af_ieee802154.h
af_rxrpc.h
af_unix.h af_unix: constify the sock parameter in unix_sk() 2015-10-08 04:05:18 -07:00
af_vsock.h net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
ah.h
arp.h
atmclip.h
ax25.h ax25: Stop using sock->sk_protinfo. 2015-06-28 16:55:44 -07:00
ax88796.h
bond_3ad.h
bond_alb.h
bond_options.h bonding: convert num_grat_arp to the new bonding option API 2015-07-27 01:05:24 -07:00
bonding.h net/bonding: Export bond_option_active_slave_get_rcu 2015-08-30 18:08:50 -04:00
busy_poll.h
cfg80211-wext.h
cfg80211.h Merge branch 'mac80211' into mac80211-next 2015-07-17 15:39:41 +02:00
cfg802154.h ieee802154: add ack request default handling 2015-08-10 20:43:06 +02:00
checksum.h net: Add inet_proto_csum_replace_by_diff utility function 2015-08-17 21:33:06 -07:00
cipso_ipv4.h
cls_cgroup.h cls_cgroup: factor out classid retrieval 2015-07-20 12:41:30 -07:00
codel.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-05-13 14:31:43 -04:00
compat.h net: switch importing msghdr from userland to {compat_,}import_iovec() 2015-04-09 00:02:26 -04:00
datalink.h
dcbevent.h
dcbnl.h
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h
dn.h
dsa.h net: dsa: Add dsa_is_dsa_port() helper 2015-08-18 14:17:21 -07:00
dsfield.h
dst_metadata.h tun_dst: Remove opts_size 2015-08-31 21:23:42 -07:00
dst_ops.h
dst.h tcp: use dctcp if enabled on the route to the initiator 2015-08-31 12:34:00 -07:00
esp.h
ethoc.h
fib_rules.h net: ipv6: use common fib_default_rule_pref 2015-09-09 14:19:50 -07:00
firewire.h
flow_dissector.h flow_dissector: Don't use bit fields. 2015-09-01 16:46:08 -07:00
flow.h net: Fix vti use case with oif in dst lookups 2015-09-17 16:36:34 -07:00
flowcache.h
fou.h
garp.h
gen_stats.h
genetlink.h
geneve.h geneve: Consolidate Geneve functionality in single module. 2015-08-27 15:42:48 -07:00
gre.h gre: Remove support for sharing GRE protocol hook. 2015-08-10 14:03:54 -07:00
gro_cells.h gro_cells: remove spinlock protecting receive queues 2015-08-31 15:17:17 -07:00
gue.h
icmp.h
ieee80211_radiotap.h
ieee802154_netdev.h mac802154: cleanup llsec param flags 2015-06-12 11:42:29 +02:00
if_inet6.h
inet6_connection_sock.h
inet6_hashtables.h
inet_common.h net: Modify sk_alloc to not reference count the netns of kernel sockets. 2015-05-11 10:50:18 -04:00
inet_connection_sock.h tcp: fix child sockets to use system default congestion control if not set 2015-05-31 21:49:14 -07:00
inet_ecn.h
inet_frag.h inet: frags: remove INET_FRAG_EVICTED and use list_evictor for the test 2015-07-26 21:00:15 -07:00
inet_hashtables.h inet: simplify timewait refcounting 2015-07-09 15:12:20 -07:00
inet_sock.h inet: add IP_BIND_ADDRESS_NO_PORT to overcome bind(0) limitations 2015-06-06 23:57:12 -07:00
inet_timewait_sock.h tcp/dccp: fix old style declarations 2015-10-05 04:02:59 -07:00
inetpeer.h net: Add support for VRFs to inetpeer cache 2015-08-28 13:32:36 -07:00
ip6_checksum.h
ip6_fib.h ipv6: include NLM_F_REPLACE in route replace notifications 2015-09-17 15:00:27 -07:00
ip6_route.h ipv6: Add rt6_get_cookie() function 2015-05-25 13:25:34 -04:00
ip6_tunnel.h ip6tunnel: make rx/tx bytes counters consistent 2015-09-20 22:36:42 -07:00
ip_fib.h net: Fix behaviour of unreachable, blackhole and prohibit routes 2015-09-20 21:45:08 -07:00
ip_tunnels.h ipv4: send arp replies to the correct tunnel 2015-09-24 14:31:36 -07:00
ip_vs.h ipvs: add more mcast parameters for the sync daemon 2015-08-21 09:10:11 -07:00
ip.h net: Introduce helper functions to get the per cpu data 2015-08-30 21:48:58 -07:00
ipcomp.h
ipconfig.h
ipv6.h ipv6: Enable auto flow labels by default 2015-07-31 17:07:12 -07:00
ipx.h
iw_handler.h
lapb.h
lib80211.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
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 lwt: Add cfg argument to build_state 2015-08-24 10:34:40 -07:00
mac80211.h mac80211: protect non-HT BSS when HT TDLS traffic exists 2015-09-04 14:25:46 +02:00
mac802154.h mac802154: do not export ieee802154_rx() 2015-07-23 17:10:50 +02:00
mip6.h
mld.h
mpls_iptunnel.h mpls: ip tunnel support 2015-07-21 10:39:05 -07:00
mpls.h
mrp.h
ndisc.h ipv6: ndisc: inherit metadata dst when creating ndisc requests 2015-08-20 15:42:37 -07:00
neighbour.h net: add explicit logging and stat for neighbour table overflow 2015-08-10 13:46:21 -07:00
net_namespace.h netfilter: nfacct: per network namespace support 2015-08-07 11:50:56 +02:00
net_ratelimit.h
netevent.h
netlabel.h
netlink.h
netprio_cgroup.h
netrom.h
nexthop.h
nl802154.h ieee802154: add ack request default handling 2015-08-10 20:43:06 +02:00
p8022.h
ping.h
pkt_cls.h
pkt_sched.h net: sched: consolidate tc_classify{,_compat} 2015-08-27 14:18:48 -07:00
protocol.h
psnap.h
raw.h
rawv6.h
red.h
regulatory.h
request_sock.h tcp: provide SYN headers for passive connections 2015-05-05 16:02:34 -04:00
rose.h
route.h net: Fix vti use case with oif in dst lookups 2015-09-17 16:36:34 -07:00
rtnetlink.h openvswitch: Use regular VXLAN net_device device 2015-07-21 10:39:07 -07:00
sch_generic.h net: sched: register noqueue qdisc 2015-08-27 17:14:30 -07:00
scm.h
secure_seq.h
slhc_vj.h
snmp.h
sock.h net: add pfmemalloc check in sk_add_backlog() 2015-10-17 05:01:11 -07:00
Space.h
stp.h
switchdev.h net: switchdev: support static FDB addresses 2015-08-11 12:03:19 -07:00
tcp_memcontrol.h
tcp_states.h
tcp.h tcp: use dctcp if enabled on the route to the initiator 2015-08-31 12:34:00 -07:00
timewait_sock.h inet: remove BUG_ON() in twsk_destructor() 2015-07-09 15:12:20 -07:00
transp_v6.h
tso.h
udp_tunnel.h vxlan: do not receive IPv4 packets on IPv6 socket 2015-08-29 13:07:54 -07:00
udp.h
udplite.h
vrf.h net: Make table id type u32 2015-09-01 14:32:44 -07:00
vsock_addr.h
vxlan.h vxlan: fix multiple inclusion of vxlan.h 2015-08-25 14:32:04 -07:00
wext.h
wimax.h
x25.h
x25device.h
xfrm.h xfrm: Add oif to dst lookups 2015-08-11 12:41:35 +02:00