From 476c0d7fbdfd5617f52303ec78deeec657fa05dc Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 3 Nov 2016 08:59:46 -0700 Subject: [PATCH] ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped commit 990ff4d84408fc55942ca6644f67e361737b3d8e upstream. While fuzzing kernel with syzkaller, Andrey reported a nasty crash in inet6_bind() caused by DCCP lacking a required method. Fixes: ab1e0a13d7029 ("[SOCK] proto: Add hashinfo member to struct proto") Signed-off-by: Eric Dumazet Reported-by: Andrey Konovalov Tested-by: Andrey Konovalov Cc: Arnaldo Carvalho de Melo Acked-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller Signed-off-by: Ben Hutchings --- net/dccp/ipv6.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 0987c89031c2..efb6ef9f4eef 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1037,6 +1037,7 @@ static const struct inet_connection_sock_af_ops dccp_ipv6_mapped = { .getsockopt = ipv6_getsockopt, .addr2sockaddr = inet6_csk_addr2sockaddr, .sockaddr_len = sizeof(struct sockaddr_in6), + .bind_conflict = inet6_csk_bind_conflict, #ifdef CONFIG_COMPAT .compat_setsockopt = compat_ipv6_setsockopt, .compat_getsockopt = compat_ipv6_getsockopt, -- 2.39.2