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Pablo Neira Ayuso 76ef74d4a3 netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits 
commit 696e1a48b1 upstream.

If the offset + length goes over the ethernet + vlan header, then the
length is adjusted to copy the bytes that are within the boundaries of
the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet +
vlan header are copied directly from the skbuff data area.

Fix incorrect arithmetic operator: subtract, not add, the size of the
vlan header in case of double-tagged packets to adjust the length
accordingly to address CVE-2023-0179.

Reported-by: Davide Ornaghi <d.ornaghi97@gmail.com>
Fixes: f6ae9f120d ("netfilter: nft_payload: add C-VLAN support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-18 11:58:09 +01:00
arch
x86/fpu: Emulate XRSTOR's behavior if the xfeatures PKRU bit is not set
2023-01-14 10:33:42 +01:00
block
block: don't allow splitting of a REQ_NOWAIT bio
2023-01-12 12:02:47 +01:00
certs
certs: make system keyring depend on built-in x509 parser
2022-09-24 04:31:18 +09:00
crypto
crypto: tcrypt - Fix multibuffer skcipher speed test mem leak
2022-12-31 13:32:34 +01:00
Documentation
ext4: journal_path mount options should follow links
2023-01-07 11:11:59 +01:00
drivers
wifi: ath11k: Send PME message during wakeup from D3cold
2023-01-12 12:02:58 +01:00
fs
Revert "SUNRPC: Use RMW bitops in single-threaded hot paths"
2023-01-14 10:33:42 +01:00
include
efi: random: combine bootloader provided RNG seed with RNG protocol output
2023-01-12 12:02:58 +01:00
init
gcc: disable -Warray-bounds for gcc-11 too
2023-01-14 10:33:43 +01:00
io_uring
io_uring: fix CQ waiting timeout handling
2023-01-12 12:02:48 +01:00
ipc
ipc: fix memory leak in init_mqueue_fs()
2022-12-31 13:32:01 +01:00
kernel
bpf: Fix panic due to wrong pageattr of im->image
2023-01-12 12:02:45 +01:00
lib
kunit: alloc_string_stream_fragment error handling bug fix
2023-01-12 12:02:41 +01:00
LICENSES
LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers
2021-12-16 14:33:10 +01:00
mm
hugetlb: really allocate vma lock for all sharable vmas
2023-01-07 11:11:55 +01:00
net
netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits
2023-01-18 11:58:09 +01:00
rust
Kbuild: add Rust support
2022-09-28 09:02:20 +02:00
samples
samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe()
2022-12-31 13:32:42 +01:00
scripts
Merge tag 'objtool_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2022-11-27 12:08:17 -08:00
security
device_cgroup: Roll back to original exceptions after copy failure
2023-01-07 11:11:56 +01:00
sound
ALSA: hda: cs35l41: Check runtime suspend capability at runtime_idle
2023-01-14 10:33:46 +01:00
tools
selftests/vm/pkeys: Add a regression test for setting PKRU through ptrace
2023-01-14 10:33:42 +01:00
usr
usr/gen_init_cpio.c: remove unnecessary -1 values from int file
2022-10-03 14:21:44 -07:00
virt
Merge branch 'kvm-dwmw2-fixes' into HEAD
2022-11-23 18:59:45 -05:00
.clang-format
inet: ping: use hlist_nulls rcu iterator during lookup
2022-12-01 12:42:46 +01:00
.cocciconfig
…
.get_maintainer.ignore
get_maintainer: add Alan to .get_maintainer.ignore
2022-08-20 15:17:44 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
Kbuild: add Rust support
2022-09-28 09:02:20 +02:00
.mailmap
Merge tag 'mm-hotfixes-stable-2022-12-10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-10 17:10:52 -08:00
.rustfmt.toml
rust: add .rustfmt.toml
2022-09-28 09:02:20 +02:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Remove Michal Marek from Kbuild maintainers
2022-11-16 14:53:00 +09:00
Kbuild
Merge tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2022-10-10 12:00:45 -07:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
Merge tag 'mm-hotfixes-stable-2022-12-10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-10 17:10:52 -08:00
Makefile
Linux 6.1.6
2023-01-14 10:33:46 +01:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -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.

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.
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