net: guard tcp_set_keepalive() to tcp sockets
Its possible to use RAW sockets to get a crash in tcp_set_keepalive() / sk_reset_timer() Fix is to make sure socket is a SOCK_STREAM one. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -691,7 +691,8 @@ set_rcvbuf:
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case SO_KEEPALIVE:
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#ifdef CONFIG_INET
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if (sk->sk_protocol == IPPROTO_TCP)
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if (sk->sk_protocol == IPPROTO_TCP &&
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sk->sk_type == SOCK_STREAM)
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tcp_set_keepalive(sk, valbool);
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#endif
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sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool);
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