Linus Torvalds 216284c4a1 make 'user_access_begin()' do 'access_ok()' ... commit 594cc251fd upstream. Originally, the rule used to be that you'd have to do access_ok() separately, and then user_access_begin() before actually doing the direct (optimized) user access. But experience has shown that people then decide not to do access_ok() at all, and instead rely on it being implied by other operations or similar. Which makes it very hard to verify that the access has actually been range-checked. If you use the unsafe direct user accesses, hardware features (either SMAP - Supervisor Mode Access Protection - on x86, or PAN - Privileged Access Never - on ARM) do force you to use user_access_begin(). But nothing really forces the range check. By putting the range check into user_access_begin(), we actually force people to do the right thing (tm), and the range check vill be visible near the actual accesses. We have way too long a history of people trying to avoid them. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Miles Chen <miles.chen@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-06-22 09:04:58 +02:00
..
accessibility
acpi	nfit: Add Hyper-V NVDIMM DSM command set to white list	2020-05-27 17:37:39 +02:00
amba
android	binder: take read mode of mmap_sem in binder_alloc_free_page()	2020-05-02 17:25:48 +02:00
ata	libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set	2020-04-17 10:48:52 +02:00
atm	fore200e: Fix incorrect checks of NULL pointer dereference	2020-02-24 08:34:42 +01:00
auxdisplay
base	x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation	2020-06-10 21:35:01 +02:00
bcma	bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA	2020-01-27 14:51:09 +01:00
block	null_blk: return error for invalid zone size	2020-06-07 13:17:56 +02:00
bluetooth	Bluetooth: btusb: fix PM leak in error case of setup	2020-01-09 10:19:04 +01:00
bus	bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads	2020-04-17 10:48:37 +02:00
cdrom	cdrom: respect device capabilities during opening action	2020-01-04 19:13:12 +01:00
char	tpm: ibmvtpm: retry on H_CLOSED in tpm_ibmvtpm_send()	2020-04-29 16:31:29 +02:00
clk	clk: Unlink clock if failed to prepare or enable	2020-05-20 08:18:52 +02:00
clocksource	clocksource/drivers/bcm2835_timer: Fix memory leak of timer	2020-02-24 08:34:37 +01:00
connector
cpufreq	cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once	2020-05-20 08:18:40 +02:00
cpuidle	cpuidle: Do not unset the driver if it is there already	2019-12-17 20:35:00 +01:00
crypto	crypto: chelsio/chtls: properly set tp->lsndtime	2020-06-03 08:19:48 +02:00
dax
dca
devfreq	Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs"	2020-03-05 16:42:18 +01:00
dio
dma	dmaengine: owl: Use correct lock in owl_dma_get_pchan()	2020-05-27 17:37:38 +02:00
dma-buf	dma-buf: Fix memory leak in sync_file_merge()	2019-12-21 10:57:38 +01:00
edac	EDAC/amd64: Set grain per DIMM	2020-03-11 14:14:45 +01:00
eisa
extcon	extcon: axp288: Add wakeup support	2020-04-13 10:45:03 +02:00
firewire	net: add annotations on hh->hh_len lockless accesses	2020-01-09 10:19:09 +01:00
firmware	efi/x86: Ignore the memory attributes table on i386	2020-04-17 10:48:41 +02:00
fmc
fpga
fsi	fsi: sbefifo: Don't fail operations when in SBE IPL state	2020-01-27 14:51:00 +01:00
gnss
gpio	gpio: exar: Fix bad handling for ida_simple_get error path	2020-06-03 08:19:35 +02:00
gpu	make 'user_access_begin()' do 'access_ok()'	2020-06-22 09:04:58 +02:00
hid	HID: i2c-hid: add Schneider SCL142ALM to descriptor override	2020-06-07 13:17:53 +02:00
hsi
hv	x86/Hyper-V: Report crash data in die() when panic_on_oops is set	2020-04-23 10:30:17 +02:00
hwmon	hwmon: (da9052) Synchronize access with mfd	2020-05-20 08:18:44 +02:00
hwspinlock
hwtracing	intel_th: pci: Add Elkhart Lake CPU support	2020-03-25 08:06:11 +01:00
i2c	i2c: altera: Fix race between xfer_msg and isr thread	2020-06-07 13:17:56 +02:00
ide	ide: serverworks: potential overflow in svwks_set_pio_mode()	2020-02-24 08:34:49 +01:00
idle
iio	iio: vcnl4000: Fix i2c swapped word reading.	2020-06-10 21:35:00 +02:00
infiniband	RDMA/core: Fix double destruction of uobject	2020-06-03 08:19:43 +02:00
input	Input: synaptics-rmi4 - fix error return code in rmi_driver_probe()	2020-06-03 08:19:33 +02:00
iommu	iommu: Fix reference count leak in iommu_group_alloc.	2020-06-03 08:19:41 +02:00
ipack	ipack: tpci200: fix error return code in tpci200_register()	2020-05-27 17:37:43 +02:00
irqchip	irqchip/mbigen: Free msi_desc on device teardown	2020-04-23 10:30:13 +02:00
isdn	staging: gigaset: add endpoint-type sanity check	2019-12-17 20:34:33 +01:00
leds	leds: pca963x: Fix open-drain initialization	2020-02-24 08:34:35 +01:00
lightnvm	lightnvm: pblk: fix lock order in pblk_rb_tear_down_check	2020-01-27 14:50:45 +01:00
macintosh	macintosh: windfarm: fix MODINFO regression	2020-03-18 07:14:21 +01:00
mailbox	mailbox: qcom-apcs: fix max_register value	2020-01-27 14:51:14 +01:00
mcb
md	dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath	2020-05-06 08:13:29 +02:00
media	media: fdp1: Fix R-Car M3-N naming in debug message	2020-05-27 17:37:40 +02:00
memory	memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20	2020-01-27 14:50:13 +01:00
memstick
message	scsi: mptfusion: Fix double fetch bug in ioctl	2020-01-23 08:21:28 +01:00
mfd	mfd: intel-lpss: Use devm_ioremap_uc for MMIO	2020-05-10 10:30:11 +02:00
misc	mei: release me_cl object reference	2020-05-27 17:37:43 +02:00
mmc	mmc: core: Fix recursive locking issue in CQE recovery path	2020-06-03 08:19:42 +02:00
mtd	ubi: Fix seq_file usage in detailed_erase_block_info debugfs file	2020-05-27 17:37:30 +02:00
mux
net	tun: correct header offsets in napi frags mode	2020-06-22 09:04:58 +02:00
nfc	NFC: st21nfca: add missed kfree_skb() in an error path	2020-06-10 21:34:59 +02:00
ntb	ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()	2020-01-27 14:50:55 +01:00
nubus
nvdimm	libnvdimm: Fix endian conversion issues	2020-06-07 13:17:53 +02:00
nvme	nvme: fix deadlock caused by ANA update wrong locking	2020-04-29 16:31:12 +02:00
nvmem	nvmem: qfprom: remove incorrect write support	2020-06-10 21:35:00 +02:00
of	of: overlay: kmemleak in dup_and_fixup_symbol_prop()	2020-04-23 10:30:14 +02:00
opp	OPP: Fix missing debugfs supply directory for OPPs	2020-01-27 14:50:04 +01:00
oprofile
parisc
parport	parport: load lowlevel driver if ports not found	2019-12-31 16:36:01 +01:00
pci	PCI: Move Apex Edge TPU class quirk to fix BAR assignment	2020-05-02 17:25:52 +02:00
pcmcia
perf	drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer	2020-03-25 08:06:07 +01:00
phy	phy: mapphone-mdm6600: Fix write timeouts with shorter GPIO toggle interval	2020-03-11 14:15:10 +01:00
pinctrl	pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler	2020-05-20 08:18:41 +02:00
platform	platform/x86: asus-nb-wmi: Do not load on Asus T100TA and T200TA	2020-05-27 17:37:35 +02:00
pnp
power	power: supply: axp288_fuel_gauge: Broaden vendor check for Intel Compute Sticks.	2020-04-23 10:30:22 +02:00
powercap
pps
ps3
ptp	ptp: free ptp device pin descriptors properly	2020-01-23 08:21:35 +01:00
pwm	pwm: bcm2835: Dynamically allocate base	2020-04-29 16:31:14 +02:00
rapidio	rapidio: fix an error in get_user_pages_fast() error handling	2020-05-27 17:37:43 +02:00
ras
regulator	regulator: rk808: Lower log level on optional GPIOs being not available	2020-02-24 08:34:40 +01:00
remoteproc	remoteproc: Fix wrong rvring index computation	2020-05-02 17:25:47 +02:00
reset	reset: uniphier: Add SCSSI reset control for each channel	2020-02-24 08:34:44 +01:00
rpmsg	rpmsg: glink: Remove chunk size word align warning	2020-04-13 10:45:16 +02:00
rtc	rtc: 88pm860x: fix possible race condition	2020-04-23 10:30:18 +02:00
s390	s390/cio: avoid duplicated 'ADD' uevents	2020-04-29 16:31:13 +02:00
sbus
scsi	scsi: hisi_sas: Check sas_port before using it	2020-06-07 13:17:55 +02:00
sfi
sh
siox
slimbus
sn
soc	soc: imx: gpc: fix power up sequencing	2020-04-23 10:30:17 +02:00
soundwire	soundwire: intel: fix PDI/stream mapping for Bulk	2019-12-31 16:35:55 +01:00
spi	spi: dw: use "smp_mb()" to avoid sending spi data error	2020-06-07 13:17:55 +02:00
spmi
ssb
staging	staging: rtl8712: Fix IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK	2020-06-10 21:35:00 +02:00
target	scsi: target/iblock: fix WRITE SAME zeroing	2020-05-06 08:13:31 +02:00
tc
tee	tee: optee: Fix compilation issue with nommu	2020-02-05 14:43:50 +00:00
thermal	thermal: brcmstb_thermal: Do not use DT coefficients	2020-03-05 16:42:22 +01:00
thunderbolt	thunderbolt: Drop duplicated get_switch_at_route()	2020-05-27 17:37:40 +02:00
tty	tty: hvc_console, fix crashes on parallel open/close	2020-06-10 21:35:00 +02:00
uio	uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()	2020-02-24 08:34:37 +01:00
usb	CDC-ACM: heed quirk also in error handling	2020-06-10 21:35:00 +02:00
uwb
vfio	vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()	2020-05-06 08:13:31 +02:00
vhost	vhost/vsock: fix packet delivery order to monitoring devices	2020-05-27 17:37:32 +02:00
video	fbdev: potential information leak in do_fb_ioctl()	2020-04-23 10:30:22 +02:00
virt
virtio	virtio_balloon: prevent pfn array overflow	2020-02-24 08:34:54 +01:00
visorbus	visorbus: fix uninitialized variable access	2020-02-24 08:34:47 +01:00
vlynq
vme	vme: bridges: reduce stack usage	2020-02-24 08:34:47 +01:00
w1
watchdog	watchdog: reset last_hw_keepalive time at start	2020-04-29 16:31:09 +02:00
xen	xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status	2020-05-02 17:25:58 +02:00
zorro
Kconfig
Makefile