netdev - [PATCH v2 net-next 0/2] kcm: fix two syzcaller issues

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Message-Id: <20180124203541.3172-1-tom@quantonium.net>
Date:   Wed, 24 Jan 2018 12:35:39 -0800
From:   Tom Herbert <tom@...ntonium.net>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, rohit@...ntonium.net, jchapman@...alix.com,
        g.nault@...halink.fr, Tom Herbert <tom@...ntonium.net>
Subject: [PATCH v2 net-next 0/2] kcm: fix two syzcaller issues

In this patch set:

- Don't allow attaching non-TCP or listener sockets to a KCM mux.
- In kcm_attach Check if sk_user_data is already set. This is
  under lock to avoid race conditions. More work is need to make
  all of the users of sk_user_data to use the same locking.

- v2
  Remove unncessary check for not PF_KCM in kcm_attach (suggested by
  Guillaume Nault)

Tom Herbert (2):
  kcm: Only allow TCP sockets to be attached to a KCM mux
  kcm: Check if sk_user_data already set in kcm_attach

 net/kcm/kcmsock.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

-- 
2.11.0