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David S. Miller 443cb3a321 Merge branch 'l2tp-session-creation-fixes'
Guillaume Nault says:

====================
l2tp: session creation fixes

The session creation process has a few issues wrt. concurrent tunnel
deletion.

Patch #1 avoids creating sessions in tunnels that are getting removed.
This prevents races where sessions could try to take tunnel resources
that were already released.

Patch #2 removes some racy l2tp_tunnel_find() calls in session creation
callbacks. Together with path #1 it ensures that sessions can only
access tunnel resources that are guaranteed to remain valid during the
session creation process.

There are other problems with how sessions are created: pseudo-wire
specific data are set after the session is added to the tunnel. So
the session can be used, or deleted, before it has been completely
initialised. Separating session allocation from session registration
would be necessary, but we'd still have circular dependencies
preventing race-free registration. I'll consider this issue in future
series.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-03 11:04:21 -07:00
arch Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-09-01 10:36:22 -07:00
block blk-mq-debugfs: Add names for recently added flags 2017-08-25 08:07:44 -06:00
certs modsign: add markers to endif-statements in certs/Makefile 2017-07-14 11:01:37 +10:00
crypto crypto: algif_skcipher - only call put_page on referenced and used pages 2017-08-22 14:45:48 +08:00
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 13:16:27 -07:00
drivers Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 12:49:03 -07:00
firmware
fs epoll: fix race between ep_poll_callback(POLLFREE) and ep_free()/ep_remove() 2017-09-01 13:07:35 -07:00
include Revert "net: fix percpu memory leaks" 2017-09-03 11:01:05 -07:00
init random: do not ignore early device randomness 2017-07-12 16:26:00 -07:00
ipc ipc: add missing container_of()s for randstruct 2017-08-02 17:16:12 -07:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 12:49:03 -07:00
lib Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-09-01 10:30:03 -07:00
mm Merge branch 'akpm' (patches from Andrew) 2017-08-31 17:56:56 -07:00
net l2tp: pass tunnel pointer to ->session_create() 2017-09-03 11:04:21 -07:00
samples samples/bpf: fix bpf tunnel cleanup 2017-07-31 22:02:47 -07:00
scripts scripts/dtc: fix '%zx' warning 2017-08-31 16:33:15 -07:00
security Now that IPC and other changes have landed, enable manual markings for 2017-07-19 08:55:18 -07:00
sound ASoC: Fixes for v4.13 2017-08-31 14:08:26 +02:00
tools NTB bug fixes to address an incorrect ntb_mw_count reference in the NTB 2017-08-27 17:01:54 -07:00
usr
virt KVM: update to new mmu_notifier semantic v2 2017-08-31 16:13:00 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-08-20 09:07:56 -07:00
Makefile Linux 4.13-rc7 2017-08-27 17:20:40 -07:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.