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Commit 990ff4d8 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped 



While fuzzing kernel with syzkaller, Andrey reported a nasty crash
in inet6_bind() caused by DCCP lacking a required method.

Fixes: ab1e0a13 ("[SOCK] proto: Add hashinfo member to struct proto")
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Reported-by: default avatarAndrey Konovalov <andreyknvl@google.com>
Tested-by: default avatarAndrey Konovalov <andreyknvl@google.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 29ab5a3b

net/dccp/ipv6.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -958,6 +958,7 @@ static const struct inet_connection_sock_af_ops dccp_ipv6_mapped = { 
	.getsockopt	   = ipv6_getsockopt,

	.getsockopt	   = ipv6_getsockopt,

	.addr2sockaddr	   = inet6_csk_addr2sockaddr,

	.addr2sockaddr	   = inet6_csk_addr2sockaddr,

	.sockaddr_len	   = sizeof(struct sockaddr_in6),

	.sockaddr_len	   = sizeof(struct sockaddr_in6),

	.bind_conflict	   = inet6_csk_bind_conflict,

#ifdef CONFIG_COMPAT

#ifdef CONFIG_COMPAT

	.compat_setsockopt = compat_ipv6_setsockopt,

	.compat_setsockopt = compat_ipv6_setsockopt,

	.compat_getsockopt = compat_ipv6_getsockopt,

	.compat_getsockopt = compat_ipv6_getsockopt,