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Date:   Tue, 30 Aug 2022 11:56:54 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev <netdev@...r.kernel.org>,
        Neal Cardwell <ncardwell@...gle.com>,
        Jason Baron <jbaron@...mai.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net 0/2] tcp: tcp challenge ack fixes

From: Eric Dumazet <edumazet@...gle.com>

syzbot found a typical data-race addressed in the first patch.

While we are at it, second patch makes the global rate limit
per net-ns and disabled by default.

Eric Dumazet (2):
  tcp: annotate data-race around challenge_timestamp
  tcp: make global challenge ack rate limitation per net-ns and default
    disabled

 Documentation/networking/ip-sysctl.rst |  5 ++++-
 include/net/netns/ipv4.h               |  2 ++
 net/ipv4/tcp_input.c                   | 21 +++++++++++----------
 net/ipv4/tcp_ipv4.c                    |  6 ++++--
 4 files changed, 21 insertions(+), 13 deletions(-)

-- 
2.37.2.672.g94769d06f0-goog

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