net/ulp: remove SOCK_SUPPORT_ZC from tls sockets

Remove SOCK_SUPPORT_ZC when we're setting ulp as it might not support
msghdr::ubuf_info, e.g. like TLS replacing ->sk_prot with a new set of
handlers.

Cc: <stable@vger.kernel.org> # 6.0
Reported-by: Jakub Kicinski <kuba@kernel.org>
Fixes: e993ffe3da4bc ("net: flag sockets supporting msghdr originated zerocopy")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/ipv4/tcp_ulp.c b/net/ipv4/tcp_ulp.c
index 7c27aa6..9ae50b1 100644 (file)
--- a/net/ipv4/tcp_ulp.c
+++ b/net/ipv4/tcp_ulp.c
@@ -136,6 +136,9 @@ static int __tcp_set_ulp(struct sock *sk, const struct tcp_ulp_ops *ulp_ops)
        if (icsk->icsk_ulp_ops)
                goto out_err;
 
+       if (sk->sk_socket)
+               clear_bit(SOCK_SUPPORT_ZC, &sk->sk_socket->flags);
+
        err = ulp_ops->init(sk);
        if (err)
                goto out_err;