From: Florian Westphal <fw@strlen.de>
To: <netdev@vger.kernel.org>
Cc: matthieu.baerts@tessares.net, mathew.j.martineau@linux.intel.com
Subject: [PATCH net 0/4] mptcp: fix sockopt crash and lockdep splats
Date: Wed, 29 Jan 2020 15:54:42 +0100 [thread overview]
Message-ID: <20200129145446.26425-1-fw@strlen.de> (raw)
Christoph Paasch reported a few bugs and lockdep splats triggered by
syzkaller.
One patch fixes a crash in set/getsockopt.
Two patches fix lockdep splats related to the order in which RTNL
and socket lock are taken.
Last patch fixes out-of-bounds access when TCP syncookies are used.
Change since last iteration on mptcp-list:
- add needed refcount in patch 2
- call tcp_get/setsockopt directly in patch 2
Other patches unchanged except minor amends to commit messages.
include/linux/tcp.h | 2 --
net/ipv4/syncookies.c | 4 ++++
net/ipv4/tcp_input.c | 3 +++
net/ipv6/syncookies.c | 3 +++
net/mptcp/protocol.c | 54 ++++++++++++++++++++++++++++++++----------------------
net/mptcp/subflow.c | 5 ++++-
6 files changed, 46 insertions(+), 25 deletions(-)
next reply other threads:[~2020-01-29 14:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-29 14:54 Florian Westphal [this message]
2020-01-29 14:54 ` [PATCH net 1/4] mptcp: defer freeing of cached ext until last moment Florian Westphal
2020-01-29 14:54 ` [PATCH net 2/4] mptcp: fix panic on user pointer access Florian Westphal
2020-01-29 14:54 ` [PATCH net 3/4] mptcp: avoid a lockdep splat when mcast group was joined Florian Westphal
2020-01-29 14:54 ` [PATCH net 4/4] mptcp: handle tcp fallback when using syn cookies Florian Westphal
2020-01-29 16:47 ` [PATCH net 0/4] mptcp: fix sockopt crash and lockdep splats David Miller
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