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Eric Dumazet 657831ffc3 dccp/tcp: do not inherit mc_list from parent
syzkaller found a way to trigger double frees from ip_mc_drop_socket()

It turns out that leave a copy of parent mc_list at accept() time,
which is very bad.

Very similar to commit 8b485ce698 ("tcp: do not inherit
fastopen_req from parent")

Initial report from Pray3r, completed by Andrey one.
Thanks a lot to them !

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Pray3r <pray3r.z@gmail.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-09 15:17:49 -04:00
arch char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-05-03 10:05:38 -07:00
certs KEYS: Use structure to capture key restriction function and data 2017-04-04 14:10:10 -07:00
crypto Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2017-05-03 08:50:52 -07:00
Documentation char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
drivers qede: Split PF/VF ndos. 2017-05-09 11:24:22 -04:00
firmware
fs char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
include Revert "ipv4: restore rt->fi for reference counting" 2017-05-08 22:35:32 -04:00
init New features for this release: 2017-05-03 18:41:21 -07:00
ipc
kernel bpf: don't let ldimm64 leak map addresses on unprivileged 2017-05-08 15:06:46 -04:00
lib USB patches for 4.12-rc1 2017-05-04 18:03:51 -07:00
mm New features for this release: 2017-05-03 18:41:21 -07:00
net dccp/tcp: do not inherit mc_list from parent 2017-05-09 15:17:49 -04:00
samples char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
scripts char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
security Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2017-05-03 08:50:52 -07:00
sound sound updates for 4.12-rc1 2017-05-03 11:58:59 -07:00
tools USB patches for 4.12-rc1 2017-05-04 18:03:51 -07:00
usr
virt KVM/ARM Fixes for v4.11-rc6 2017-04-05 16:27:47 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add Martin Kepplinger's email 2017-04-13 18:24:21 -07:00
COPYING
CREDITS avr32: remove support for AVR32 architecture 2017-05-01 09:27:15 +02:00
Kbuild
Kconfig
MAINTAINERS char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
Makefile A reasonably busy cycle for documentation this time around. There is a new 2017-05-02 10:21:17 -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.