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Eric Dumazet 2ca4f6ca45 rxrpc: use rcu protection while reading sk->sk_user_data 
We need to extend the rcu_read_lock() section in rxrpc_error_report()
and use rcu_dereference_sk_user_data() instead of plain access
to sk->sk_user_data to make sure all rules are respected.

The compiler wont reload sk->sk_user_data at will, and RCU rules
prevent memory beeing freed too soon.

Fixes: f0308fb070 ("rxrpc: Fix possible NULL pointer access in ICMP handling")
Fixes: 17926a7932 ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-16 12:20:17 -07:00
..
6lowpan
9p 9p pull request for inclusion in 5.4 2019-09-27 15:10:34 -07:00
802
8021q
appletalk appletalk: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
atm pppoatm: use %*ph to print small buffer 2019-09-05 12:33:28 +02:00
ax25 ax25: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
batman-adv netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-09-18 12:34:53 -07:00
bpf
bpfilter
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
caif
can can: add support of SAE J1939 protocol 2019-09-04 14:22:33 +02:00
ceph libceph: use ceph_kvmalloc() for osdmap arrays 2019-09-16 12:06:25 +02:00
core net/sched: fix corrupted L2 header with MPLS 'push' and 'pop' actions 2019-10-15 17:14:48 -07:00
dcb
dccp netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
decnet
dns_resolver
dsa net: dsa: sja1105: Fix sleeping while atomic in .port_hwtstamp_set 2019-10-02 12:19:53 -04:00
ethernet
hsr
ieee802154 ieee802154: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
ife net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
ipv4 tcp: fix a possible lockdep splat in tcp_done() 2019-10-15 20:13:33 -07:00
ipv6 Revert "blackhole_netdev: fix syzkaller reported issue" 2019-10-16 13:41:26 -04:00
iucv
kcm kcm: disable preemption in kcm_parse_func_strparser() 2019-09-27 10:27:14 +02:00
key
l2tp netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
l3mdev
lapb
llc net: silence KCSAN warnings around sk_add_backlog() calls 2019-10-09 21:42:59 -07:00
mac80211 mac80211: fix scan when operating on DFS channels in ETSI domains 2019-10-07 22:10:50 +02:00
mac802154
mpls
ncsi net/ncsi: Disable global multicast filter 2019-09-19 18:04:40 -07:00
netfilter netfilter: conntrack: avoid possible false sharing 2019-10-09 21:22:06 -07:00
netlabel netlabel: remove redundant assignment to pointer iter 2019-09-01 11:45:02 -07:00
netlink
netrom
nfc nfc: fix memory leak in llcp_sock_bind() 2019-10-04 18:31:36 -07:00
nsh
openvswitch net/sched: fix corrupted L2 header with MPLS 'push' and 'pop' actions 2019-10-15 17:14:48 -07:00
packet netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
phonet
psample net: sched: take reference to psample group in flow_action infra 2019-09-16 09:18:03 +02:00
qrtr net: qrtr: Stop rx_worker before freeing node 2019-09-21 18:45:46 -07:00
rds net/rds: Fix error handling in rds_ib_add_one() 2019-10-02 12:16:57 -04:00
rfkill
rose
rxrpc rxrpc: use rcu protection while reading sk->sk_user_data 2019-10-16 12:20:17 -07:00
sched sched: etf: Fix ordering of packets with same txtime 2019-10-15 20:32:04 -07:00
sctp sctp: change sctp_prot .no_autobind with true 2019-10-15 20:37:51 -07:00
smc net/smc: receive pending data after RCV_SHUTDOWN 2019-10-10 19:08:41 -07:00
strparser
sunrpc Highlights: 2019-09-27 17:00:27 -07:00
switchdev
tipc net: silence KCSAN warnings about sk->sk_backlog.len reads 2019-10-09 21:43:00 -07:00
tls net/tls: align non temporal copy to cache lines 2019-09-07 18:10:34 +02:00
unix
vmw_vsock vsock: Fix a lockdep warning in __vsock_release() 2019-10-01 21:23:35 -04:00
wimax
wireless mac80211: fix scan when operating on DFS channels in ETSI domains 2019-10-07 22:10:50 +02:00
x25 net: silence KCSAN warnings around sk_add_backlog() calls 2019-10-09 21:42:59 -07:00
xdp xsk: Fix crash in poll when device does not support ndo_xsk_wakeup 2019-10-03 16:34:27 +02:00
xfrm netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
compat.c
Kconfig
Makefile
socket.c
sysctl_net.c