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
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Kconfig
l2tp_core.c
l2tp_core.h
l2tp_debugfs.c
l2tp_eth.c
l2tp_ip6.c	ipv6: add complete rcu protection around np->opt	2015-12-02 23:37:16 -05:00
l2tp_ip.c
l2tp_netlink.c
l2tp_ppp.c
Makefile