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Kernel sources for Moto G9 (Play) (Guamp)
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Lin, Zhenpeng dfec82f3e5 dccp: don't duplicate ccid when cloning dccp sock 
commit d9ea761fdd197351890418acd462c51f241014a7 upstream.

Commit 2677d20677 ("dccp: don't free ccid2_hc_tx_sock ...") fixed
a UAF but reintroduced CVE-2017-6074.

When the sock is cloned, two dccps_hc_tx_ccid will reference to the
same ccid. So one can free the ccid object twice from two socks after
cloning.

This issue was found by "Hadar Manor" as well and assigned with
CVE-2020-16119, which was fixed in Ubuntu's kernel. So here I port
the patch from Ubuntu to fix it.

The patch prevents cloned socks from referencing the same ccid.

Fixes: 2677d20677 ("dccp: don't free ccid2_hc_tx_sock ...")
Signed-off-by: Zhenpeng Lin <zplin@psu.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-22 11:48:11 +02:00
arch x86/mm: Fix kern_addr_valid() to cope with existing but not present entries 2021-09-22 11:48:10 +02:00
block block: bfq: fix bfq_set_next_ioprio_data() 2021-09-22 11:47:59 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-22 11:47:51 +02:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-20 16:15:44 +02:00
Documentation docs: Fix infiniband uverbs minor number 2021-09-22 11:48:01 +02:00
drivers ptp: dp83640: don't define PAGE0 2021-09-22 11:48:11 +02:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs ovl: fix BUG_ON() in may_delete() when called from ovl_cleanup() 2021-09-22 11:48:09 +02:00
include mm/hugetlb: initialize hugetlb_usage in mm_init 2021-09-22 11:48:09 +02:00
init pid: take a reference when initializing cad_pid 2021-06-10 13:24:06 +02:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:18:40 +02:00
kernel memcg: enable accounting for pids in nested pid namespaces 2021-09-22 11:48:09 +02:00
lib bpf/tests: Do not PASS tests without actually testing the result 2021-09-22 11:48:04 +02:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm mm/page_alloc: speed up the iteration of max_order 2021-09-22 11:47:48 +02:00
net dccp: don't duplicate ccid when cloning dccp sock 2021-09-22 11:48:11 +02:00
samples samples: bpf: Fix tracex7 error raised on the missing argument 2021-09-22 11:48:05 +02:00
scripts scripts/tracing: fix the bug that can't parse raw_trace_func 2021-08-12 13:19:42 +02:00
security Smack: Fix wrong semantics in smk_access_entry() 2021-09-22 11:48:03 +02:00
sound ASoC: rockchip: i2s: Fixup config for DAIFMT_DSP_A/B 2021-09-22 11:48:08 +02:00
tools selftests/bpf: Enlarge select() timeout for test_maps 2021-09-22 11:48:08 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: Use kvm_pfn_t for local PFN variable in hva_to_pfn_remapped() 2021-07-28 11:13:51 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild
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 4.19.206 2021-09-03 09:58:03 +02:00
README

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.