From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
To: netdev@vger.kernel.org
Cc: linux-sctp@vger.kernel.org, Neil Horman <nhorman@tuxdriver.com>,
Vlad Yasevich <vyasevich@gmail.com>,
haliu@redhat.com
Subject: [PATCH net 0/3] Some sockopt optlen fixes
Date: Mon, 8 Jan 2018 19:02:26 -0200 [thread overview]
Message-ID: <cover.1515436112.git.marcelo.leitner@gmail.com> (raw)
Hangbin Liu reported that some SCTP sockopt are allowing the user to get
the kernel to allocate really large buffers by not having a ceiling on
optlen.
This patchset address this issue (in patch 2), replace an GFP_ATOMIC
that isn't needed and avoid calculating the option size multiple times
in some setsockopt.
Marcelo Ricardo Leitner (3):
sctp: GFP_ATOMIC is not needed in sctp_setsockopt_events
sctp: add a ceiling to optlen in some sockopts
sctp: make use of pre-calculated len
net/sctp/socket.c | 28 +++++++++++++++++++++-------
1 file changed, 21 insertions(+), 7 deletions(-)
--
2.14.3
next reply other threads:[~2018-01-08 21:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 21:02 Marcelo Ricardo Leitner [this message]
2018-01-08 21:02 ` [PATCH net 1/3] sctp: GFP_ATOMIC is not needed in sctp_setsockopt_events Marcelo Ricardo Leitner
2018-01-08 21:02 ` [PATCH net 2/3] sctp: add a ceiling to optlen in some sockopts Marcelo Ricardo Leitner
2018-01-08 21:02 ` [PATCH net 3/3] sctp: make use of pre-calculated len Marcelo Ricardo Leitner
2018-01-09 1:23 ` [PATCH net 0/3] Some sockopt optlen fixes Neil Horman
2018-01-10 19:53 ` David Miller
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