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Cong Wang 6bb1381cc8 llc: set SOCK_RCU_FREE in llc_sap_add_socket() 
[ Upstream commit 5a8e7aea95 ]

WHen an llc sock is added into the sk_laddr_hash of an llc_sap,
it is not marked with SOCK_RCU_FREE.

This causes that the sock could be freed while it is still being
read by __llc_lookup_established() with RCU read lock. sock is
refcounted, but with RCU read lock, nothing prevents the readers
getting a zero refcnt.

Fix it by setting SOCK_RCU_FREE in llc_sap_add_socket().

Reported-by: syzbot+11e05f04c15e03be5254@syzkaller.appspotmail.com
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-04 14:52:48 +01:00
arch ARM: dts: r8a7790: Correct critical CPU temperature 2018-11-04 14:52:47 +01:00
block blk-mq: I/O and timer unplugs are inverted in blktrace 2018-10-13 09:27:22 +02:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto crypto: skcipher - Fix -Wstringop-truncation warnings 2018-10-03 17:00:45 -07:00
Documentation ARM: dts: at91: add new compatibility string for macb on sama5d3 2018-10-18 09:16:22 +02:00
drivers drm/i915/gvt: fix memory leak of a cmd_entry struct on error exit path 2018-11-04 14:52:48 +01:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters() 2018-11-04 14:52:47 +01:00
include compiler.h: Allow arch-specific asm/compiler.h 2018-11-04 14:52:46 +01:00
init init: rename and re-order boot_cpu_state_init() 2018-08-15 18:12:48 +02:00
ipc ipc/sem.c: prevent queue.status tearing in semop 2018-09-05 09:26:30 +02:00
kernel bpf: sockmap, map_release does not hold refcnt for pinned maps 2018-11-04 14:52:44 +01:00
lib test_bpf: Fix testing with CONFIG_BPF_JIT_ALWAYS_ON=y on other arches 2018-11-04 14:52:43 +01:00
mm mremap: properly flush TLB before releasing the page 2018-10-20 09:48:53 +02:00
net llc: set SOCK_RCU_FREE in llc_sap_add_socket() 2018-11-04 14:52:48 +01:00
samples samples/bpf: Check the error of write() and read() 2018-08-24 13:09:12 +02:00
scripts kconfig: fix the rule of mainmenu_stmt symbol 2018-11-04 14:52:45 +01:00
security Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" 2018-09-29 03:06:04 -07:00
sound ALSA: usx2y: Fix invalid stream URBs 2018-11-04 14:52:47 +01:00
tools perf tools: Disable parallelism for 'make clean' 2018-11-04 14:52:48 +01:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: arm/arm64: Fix vgic init race 2018-09-26 08:38:04 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS dt-bindings: Document mti,mips-cpc binding 2018-03-15 10:54:35 +01:00
Makefile kbuild: set no-integrated-as before incl. arch Makefile 2018-11-04 14:52:43 +01:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

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.