WSL2-Linux-Kernel/Documentation
Mickaël Salaün f7d62cb59f landlock: Reduce the maximum number of layers to 16
commit 75c542d6c6 upstream.

The maximum number of nested Landlock domains is currently 64.  Because
of the following fix and to help reduce the stack size, let's reduce it
to 16.  This seems large enough for a lot of use cases (e.g. sandboxed
init service, spawning a sandboxed SSH service, in nested sandboxed
containers).  Reducing the number of nested domains may also help to
discover misuse of Landlock (e.g. creating a domain per rule).

Add and use a dedicated layer_mask_t typedef to fit with the number of
layers.  This might be useful when changing it and to keep it consistent
with the maximum number of layers.

Reviewed-by: Paul Moore <paul@paul-moore.com>
Link: https://lore.kernel.org/r/20220506161102.525323-3-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-09 10:23:24 +02:00
..
ABI f2fs: don't get FREEZE lock in f2fs_evict_inode in frozen fs 2022-04-08 14:23:58 +02:00
PCI pci-v5.15-changes 2021-09-07 19:13:42 -07:00
RCU
accounting sched/psi: report zeroes for CPU full at the system level 2022-06-09 10:22:48 +02:00
admin-guide random: fix sysctl documentation nits 2022-05-30 09:29:12 +02:00
arm Documentation: arm: marvell: Add 88F6825 model into list 2021-08-24 13:26:32 -06:00
arm64 arm64: Enable repeat tlbi workaround on KRYO4XX gold CPUs 2022-05-25 09:57:36 +02:00
block Documentation: block: blk-mq: Fix small typo in multi-queue docs 2021-08-24 13:30:00 -06:00
bpf libbpf: Rename libbpf documentation index file 2021-08-18 08:45:25 -07:00
cdrom
core-api Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE"" 2022-04-08 14:24:13 +02:00
cpu-freq cpufreq: Remove ready() callback 2021-09-02 18:04:17 +02:00
crypto
dev-tools kfence: default to dynamic branch instead of static keys mode 2021-11-12 15:05:49 +01:00
devicetree spi: qcom-qspi: Add minItems to interconnect-names 2022-06-09 10:22:45 +02:00
doc-guide
driver-api Documentation: fix firewire.rst ABI file path error 2022-01-27 11:05:21 +01:00
fault-injection Char / Misc driver changes for 5.15-rc1 2021-09-01 08:35:06 -07:00
fb
features RISC-V Patches for the 5.15 Merge Window, Part 2 2021-09-11 14:29:42 -07:00
filesystems f2fs: support fault injection for dquot_initialize() 2022-06-09 10:23:13 +02:00
firmware-guide Documentation: ACPI: Fix data node reference documentation 2022-01-27 11:05:20 +01:00
firmware_class
fpga
gpu drm/i915/display: Move DRRS code its own file 2022-03-08 19:12:40 +01:00
hid
hwmon hwmon: (lm90) Add basic support for TI TMP461 2021-12-29 12:28:48 +01:00
i2c
ia64
ide
iio
infiniband
input
isdn
kbuild Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
kernel-hacking docs: kernel-hacking: Remove inappropriate text 2021-09-03 15:56:45 -06:00
leds Documentation: leds: standartizing LED names 2021-08-20 10:26:24 +02:00
litmus-tests
livepatch
locking Documentation/locking/locktypes: Update migrate_disable() bits. 2021-12-14 10:57:18 +01:00
m68k
maintainer
mhi
mips
misc-devices
netlabel
networking bonding: fix ad_actor_system option setting to default 2021-12-29 12:28:44 +01:00
nios2
nvdimm
openrisc
parisc
pcmcia
power Documentation: power: include kernel-doc in Energy Model doc 2021-09-07 21:17:28 +02:00
powerpc powerpc/doc: Fix htmldocs errors 2021-08-27 00:56:34 +10:00
process docs: submitting-patches: Fix crossref to 'The canonical patch format' 2022-06-06 08:43:41 +02:00
riscv
s390
scheduler
scsi
security
sh
sound ALSA: usb-audio: Add quirk bits for enabling/disabling generic implicit fb 2022-06-09 10:22:41 +02:00
sparc
sphinx docs: sphinx/requirements: Limit jinja2<3.1 2022-04-08 14:22:49 +02:00
sphinx-static
spi
staging
target
timers
trace tracing: Add ustring operation to filtering string pointers 2022-03-08 19:12:33 +01:00
translations Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version) 2021-09-13 10:43:04 -07:00
usb
userspace-api landlock: Reduce the maximum number of layers to 16 2022-06-09 10:23:24 +02:00
virt ARM: 2021-09-07 13:40:51 -07:00
vm Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
w1
watchdog
x86 Another collection of documentation patches, mostly fixes but also includes 2021-09-08 16:28:14 -07:00
xtensa
.gitignore
COPYING-logo
Changes
CodingStyle
Kconfig
Makefile
SubmittingPatches
arch.rst
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
conf.py docs: pdfdocs: Fix typo in CJK-language specific font settings 2021-09-06 16:53:39 -06:00
docutils.conf
dontdiff
index.rst
logo.gif
memory-barriers.txt
watch_queue.rst