linux-kernel - [PATCH 4.19 32/49] tipc: rate limit warning for received illegal binding update

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Message-Id: <20220214092449.355989042@linuxfoundation.org>
Date:   Mon, 14 Feb 2022 10:25:58 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jon Maloy <jmaloy@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 32/49] tipc: rate limit warning for received illegal binding update

From: Jon Maloy <jmaloy@...hat.com>

[ Upstream commit c7223d687758462826a20e9735305d55bb874c70 ]

It would be easy to craft a message containing an illegal binding table
update operation. This is handled correctly by the code, but the
corresponding warning printout is not rate limited as is should be.
We fix this now.

Fixes: b97bf3fd8f6a ("[TIPC] Initial merge")
Signed-off-by: Jon Maloy <jmaloy@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/tipc/name_distr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index 836e629e8f4ab..661bc2551a0a2 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -290,7 +290,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
 		pr_warn_ratelimited("Failed to remove binding %u,%u from %x\n",
 				    type, lower, node);
 	} else {
-		pr_warn("Unrecognized name table message received\n");
+		pr_warn_ratelimited("Unknown name table message received\n");
 	}
 	return false;
 }
-- 
2.34.1