Peter Enderborg a24c6f7bc9 debugfs: Add access restriction option ... Since debugfs include sensitive information it need to be treated carefully. But it also has many very useful debug functions for userspace. With this option we can have same configuration for system with need of debugfs and a way to turn it off. This gives a extra protection for exposure on systems where user-space services with system access are attacked. It is controlled by a configurable default value that can be override with a kernel command line parameter. (debugfs=) It can be on or off, but also internally on but not seen from user-space. This no-mount mode do not register a debugfs as filesystem, but client can register their parts in the internal structures. This data can be readed with a debugger or saved with a crashkernel. When it is off clients get EPERM error when accessing the functions for registering their components. Signed-off-by: Peter Enderborg <peter.enderborg@sony.com> Link: https://lore.kernel.org/r/20200716071511.26864-3-peter.enderborg@sony.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-07-23 17:10:25 +02:00
..
ABI	driver core: Add waiting_for_supplier sysfs file for devices	2020-07-10 15:24:56 +02:00
accounting
admin-guide	debugfs: Add access restriction option	2020-07-23 17:10:25 +02:00
arm
arm64	arm64: Documentation: Fix broken table in generated HTML	2020-07-08 22:20:41 +01:00
block	docs: block: update and fix tiny error for bfq	2020-07-06 08:07:01 -06:00
bpf	bpf: Document optval > PAGE_SIZE behavior for sockopt hooks	2020-06-17 10:54:05 -07:00
cdrom
core-api	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-07-10 18:16:22 -07:00
cpu-freq
crypto
dev-tools	linux-kselftest-kunit-fixes-5.8-rc4	2020-07-02 21:49:26 -07:00
devicetree	Devicetree fixes for v5.8, take 2:	2020-07-02 22:46:05 -07:00
doc-guide	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
driver-api	Documentation/driver-api: driver-model/platform: drop doubled word	2020-07-10 14:35:37 +02:00
fault-injection	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
fb	media updates for v5.8-rc1	2020-06-03 20:59:38 -07:00
features	mm/debug: add tests validating architecture page table helpers	2020-06-04 19:06:21 -07:00
filesystems	overlayfs fixes for 5.8-rc6	2020-07-17 10:29:19 -07:00
firmware_class
firmware-guide
fpga
gpu	drm/amdgpu: fix documentation around busy_percentage	2020-06-17 17:42:43 -04:00
hid
hwmon	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-06-03 16:27:18 -07:00
i2c	i2c: slave-eeprom: update documentation	2020-07-04 08:17:53 +02:00
ia64
ide
iio
infiniband	RDMA/core: Remove FMR device ops	2020-06-02 20:32:54 -03:00
input
isdn
kbuild	docs: kbuild: fix ReST formatting	2020-06-28 12:16:55 +09:00
kernel-hacking
leds
livepatch
locking	A fair amount of stuff this time around, dominated by yet another massive	2020-06-01 15:45:27 -07:00
m68k
maintainer	Documentation: fixes to the maintainer-entry-profile template	2020-06-01 09:36:07 -06:00
mhi
mips	dt: fix broken links due to txt->yaml renames	2020-06-18 10:45:05 -06:00
misc-devices	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
netlabel
networking	Documentation: networking: rxrpc: drop doubled word	2020-07-04 17:46:21 -07:00
nios2
nvdimm	nvdimm: fixes to maintainter-entry-profile	2020-05-25 10:19:19 -06:00
openrisc
parisc
PCI	pci-v5.8-changes	2020-06-06 11:01:58 -07:00
pcmcia
power	Power management updates for 5.8-rc1	2020-06-02 13:17:23 -07:00
powerpc	powerpc/vas: Report proper error code for address translation failure	2020-07-15 23:09:55 +10:00
process	Extend coding-style with inclusive-terminology recommendations.	2020-07-10 21:15:25 -07:00
RCU
riscv
s390	s390 updates for the 5.8 merge window	2020-06-08 12:05:31 -07:00
scheduler
scsi
security	Notifications over pipes + Keyring notifications	2020-06-13 09:56:21 -07:00
sh	Documentation: remove SH-5 index entries	2020-06-16 17:39:43 -07:00
sound
sparc
sphinx	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
sphinx-static	doc-rst: Reduce CSS padding around Field	2019-10-02 10:03:06 -06:00
spi
target	doc: don't use deprecated "---help---" markers in target docs	2020-06-13 13:32:40 -07:00
timers
trace	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
translations	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
usb	A fair amount of stuff this time around, dominated by yet another massive	2020-06-01 15:45:27 -07:00
userspace-api	Documentation: media: convert to use i2c_new_client_device()	2020-06-19 09:20:25 +02:00
virt	KVM: nVMX: fixes for preemption timer migration	2020-07-10 06:15:36 -04:00
vm	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
w1
watchdog	watchdog: clarify that stop() is optional	2020-05-25 08:55:42 +02:00
x86	A fair amount of stuff this time around, dominated by yet another massive	2020-06-01 15:45:27 -07:00
xtensa
.gitignore
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
bus-virt-phys-mapping.txt
Changes
CodingStyle
conf.py	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
COPYING-logo	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
crc32.txt
docutils.conf
dontdiff	modpost: generate vmlinux.symvers and reuse it for the second modpost	2020-06-06 23:38:12 +09:00
index.rst	Devicetree updates for v5.8:	2020-06-04 20:11:25 -07:00
Kconfig
kprobes.txt
logo.gif
lzo.txt	lib/lzo: fix ambiguous encoding bug in lzo-rle	2020-06-11 18:17:47 -07:00
mailbox.txt
Makefile	media updates for v5.8-rc1	2020-06-03 20:59:38 -07:00
memory-barriers.txt
nommu-mmap.txt
remoteproc.txt
rpmsg.txt
speculation.txt
static-keys.txt	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
SubmittingPatches
tee.txt
this_cpu_ops.txt
watch_queue.rst
xz.txt	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00