linux-kernel - [PATCH 5.15 074/135] Revert "net/tls: fix tls_sk_proto

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Date:   Mon, 27 Jun 2022 13:21:21 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 074/135] Revert "net/tls: fix tls_sk_proto_close executed repeatedly"

From: Jakub Kicinski <kuba@...nel.org>

[ Upstream commit 1b205d948fbb06a7613d87dcea0ff5fd8a08ed91 ]

This reverts commit 69135c572d1f84261a6de2a1268513a7e71753e2.

This commit was just papering over the issue, ULP should not
get ->update() called with its own sk_prot. Each ULP would
need to add this check.

Fixes: 69135c572d1f ("net/tls: fix tls_sk_proto_close executed repeatedly")
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Reviewed-by: John Fastabend <john.fastabend@...il.com>
Link: https://lore.kernel.org/r/20220620191353.1184629-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/tls/tls_main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 057c1af6182a..9aac9c60d786 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -790,9 +790,6 @@ static void tls_update(struct sock *sk, struct proto *p,
 {
 	struct tls_context *ctx;
 
-	if (sk->sk_prot == p)
-		return;
-
 	ctx = tls_get_ctx(sk);
 	if (likely(ctx)) {
 		ctx->sk_write_space = write_space;
-- 
2.35.1