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Hillf Danton 4b0795d5b6 Bluetooth: prefetch channel before killing sock

[ Upstream commit 2a154903ce ]

Prefetch channel before killing sock in order to fix UAF like

 BUG: KASAN: use-after-free in l2cap_sock_release+0x24c/0x290 net/bluetooth/l2cap_sock.c:1212
 Read of size 8 at addr ffff8880944904a0 by task syz-fuzzer/9751

Reported-by: syzbot+c3c5bdea7863886115dc@syzkaller.appspotmail.com
Fixes: 6c08fc896b ("Bluetooth: Fix refcount use-after-free issue")
Cc: Manish Mandlik <mmandlik@google.com>
Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-10-01 13:14:32 +02:00

arch

ARM: 8948/1: Prevent OOB access in stacktrace

2020-10-01 13:14:31 +02:00

block

block: ensure bdi->io_pages is always initialized

2020-09-12 13:40:22 +02:00

certs

export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()

2018-08-22 23:21:44 +09:00

crypto

crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock()

2020-07-09 09:37:10 +02:00

Documentation

kbuild: support LLVM=1 to switch the default tools to Clang/LLVM

2020-09-26 18:01:32 +02:00

drivers

ar5523: Add USB ID of SMCWUSBT-G2 wireless adapter

2020-10-01 13:14:31 +02:00

firmware

Fix built-in early-load Intel microcode alignment

2020-01-23 08:21:29 +01:00

ceph: ensure we have a new cap before continuing in fill_inode

2020-10-01 13:14:31 +02:00

include

sctp: move trace_sctp_probe_path into sctp_outq_sack

2020-10-01 13:14:30 +02:00

init

printk: queue wake_up_klogd irq_work only if per-CPU areas are ready

2020-07-22 09:32:13 +02:00

ipc

ipc/util.c: sysvipc_find_ipc() incorrectly updates position index

2020-05-20 08:18:40 +02:00

kernel

tracing: Set kernel_stack's caller size properly

2020-10-01 13:14:31 +02:00

lib

lib/string.c: implement stpcpy

2020-10-01 13:14:25 +02:00

LICENSES

LICENSES: Remove CC-BY-SA-4.0 license text

2018-10-18 11:28:50 +02:00

mm: pagewalk: fix termination condition in walk_pte_range()

2020-10-01 13:14:32 +02:00

net

Bluetooth: prefetch channel before killing sock

2020-10-01 13:14:32 +02:00

samples

samples: bpf: Fix build error

2020-06-03 08:19:31 +02:00

scripts

checkpatch: fix the usage of capture group ( ... )

2020-09-09 19:04:32 +02:00

security

selinux: allow labeling before policy is loaded

2020-10-01 13:14:23 +02:00

sound

ASoC: max98090: remove msleep in PLL unlocked workaround

2020-10-01 13:14:29 +02:00

tools

tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility

2020-10-01 13:14:31 +02:00

usr

initramfs: restore default compression behavior

2020-04-13 10:44:59 +02:00

virt

KVM: arm/arm64: vgic: Fix potential double free dist->spis in __kvm_vgic_destroy()

2020-10-01 13:14:29 +02:00

.clang-format

clang-format: Set IndentWrappedFunctionNames false

2018-08-01 18:38:51 +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

Merge tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2018-04-15 17:21:30 -07:00

.mailmap

Merge tag 'libnvdimm-for-4.19_misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/nvdimm/nvdimm

2018-08-25 18:13:10 -07:00

COPYING

COPYING: use the new text with points to the license files

2018-03-23 12:41:45 -06:00

CREDITS

9p: remove Ron Minnich from MAINTAINERS

2018-08-17 16:20:26 -07:00

Kbuild

Merge tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2017-11-17 17:45:29 -08:00

Kconfig

kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt

2018-08-02 08:06:55 +09:00

MAINTAINERS

Documentation/llvm: add documentation on building w/ Clang/LLVM

2020-09-26 18:01:31 +02:00

Makefile

Linux 4.19.148

2020-09-26 18:01:33 +02:00

README

Docs: Added a pointer to the formatted docs to README

2018-03-21 09:02:53 -06:00

README

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

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

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.