From: Eric Dumazet <eduma...@google.com> 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 <eduma...@google.com> Reported-by: Andrey Konovalov <andreyk...@google.com> Tested-by: Andrey Konovalov <andreyk...@google.com> Cc: Arnaldo Carvalho de Melo <a...@redhat.com> --- net/dccp/ipv6.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 3828f94b234c..95353bdbfa7b 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -956,6 +956,7 @@ 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,