Eric Dumazet 45f6fad84c ipv6: add complete rcu protection around np->opt ... This patch addresses multiple problems : UDP/RAW sendmsg() need to get a stable struct ipv6_txoptions while socket is not locked : Other threads can change np->opt concurrently. Dmitry posted a syzkaller (http://github.com/google/syzkaller) program desmonstrating use-after-free. Starting with TCP/DCCP lockless listeners, tcp_v6_syn_recv_sock() and dccp_v6_request_recv_sock() also need to use RCU protection to dereference np->opt once (before calling ipv6_dup_options()) This patch adds full RCU protection to np->opt Reported-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-12-02 23:37:16 -05:00
..
Kconfig	l2tp: Call udp_sock_create	2014-07-14 16:12:15 -07:00
l2tp_core.c	l2tp: protect tunnel->del_work by ref_count	2015-09-28 22:39:10 -07:00
l2tp_core.h	l2tp: auto load type modules	2015-09-25 12:27:22 -07:00
l2tp_debugfs.c	ipv6: make lookups simpler and faster	2013-10-09 00:01:25 -04:00
l2tp_eth.c	l2tp: auto load type modules	2015-09-25 12:27:22 -07:00
l2tp_ip6.c	ipv6: add complete rcu protection around np->opt	2015-12-02 23:37:16 -05:00
l2tp_ip.c	l2tp: auto load IP modules	2015-09-25 12:27:22 -07:00
l2tp_netlink.c	l2tp: auto load type modules	2015-09-25 12:27:22 -07:00
l2tp_ppp.c	l2tp: auto load type modules	2015-09-25 12:27:22 -07:00
Makefile