netdev - [PATCH net 0/2] mptcp: mptcp: fix deadlock in mptcp{,6}

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Date:   Thu,  1 Apr 2021 18:57:43 +0200
From:   Paolo Abeni <pabeni@...hat.com>
To:     netdev@...r.kernel.org
Cc:     mptcp@...ts.linux.dev, "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net 0/2] mptcp: mptcp: fix deadlock in mptcp{,6}_release

syzkaller has reported a few deadlock triggered by
mptcp{,6}_release.

These patches address the issue in the easy way - blocking
the relevant, multicast related, sockopt options on MPTCP
sockets.

Note that later on net-next we are going to revert patch 1/2,
as a part of a larger MPTCP sockopt implementation refactor 

Paolo Abeni (2):
  mptcp: forbit mcast-related sockopt on MPTCP sockets
  mptcp: revert "mptcp: provide subflow aware release function"

 net/mptcp/protocol.c | 100 ++++++++++++++++++++-----------------------
 1 file changed, 47 insertions(+), 53 deletions(-)

-- 
2.26.2