netdev - [PATCH net 2/4] mptcp: drop unconditional pr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 25 May 2021 14:23:11 -0700
From:   Mat Martineau <mathew.j.martineau@...ux.intel.com>
To:     netdev@...r.kernel.org
Cc:     Paolo Abeni <pabeni@...hat.com>, davem@...emloft.net,
        kuba@...nel.org, matthieu.baerts@...sares.net, mptcp@...ts.01.org,
        Mat Martineau <mathew.j.martineau@...ux.intel.com>
Subject: [PATCH net 2/4] mptcp: drop unconditional pr_warn on bad opt

From: Paolo Abeni <pabeni@...hat.com>

This is a left-over of early day. A malicious peer can flood
the kernel logs with useless messages, just drop it.

Fixes: f296234c98a8 ("mptcp: Add handling of incoming MP_JOIN requests")
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@...ux.intel.com>
---
 net/mptcp/options.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 99fc21406168..71c535f4e1ef 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -130,7 +130,6 @@ static void mptcp_parse_option(const struct sk_buff *skb,
 			memcpy(mp_opt->hmac, ptr, MPTCPOPT_HMAC_LEN);
 			pr_debug("MP_JOIN hmac");
 		} else {
-			pr_warn("MP_JOIN bad option size");
 			mp_opt->mp_join = 0;
 		}
 		break;
-- 
2.31.1