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linux/drivers
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Patrik Torstensson 67628da0e2 BACKPORT: dm verity: add 'check_at_most_once' option to only validate hashes once 
This allows platforms that are CPU/memory contrained to verify data
blocks only the first time they are read from the data device, rather
than every time.  As such, it provides a reduced level of security
because only offline tampering of the data device's content will be
detected, not online tampering.

Hash blocks are still verified each time they are read from the hash
device, since verification of hash blocks is less performance critical
than data blocks, and a hash block will not be verified any more after
all the data blocks it covers have been verified anyway.

This option introduces a bitset that is used to check if a block has
been validated before or not.  A block can be validated more than once
as there is no thread protection for the bitset.

These changes were developed and tested on entry-level Android Go
devices.

(change to use vzalloc/vfree)
(change per_bio_data_size variable)

Bug: 72664474
Change-Id: I2db2db26c7897c78407789de2cc4cff3587c84bb
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
(cherry picked from commit 843f38d382)
Signed-off-by: Patrik Torstensson <totte@google.com>
2018-05-20 16:40:16 +05:30
..
accessibility
acpi ACPI / video: Add quirk to force acpi-video backlight on Samsung 670Z5E 2018-04-24 09:32:06 +02:00
amba ARM: amba: Don't read past the end of sysfs "driver_override" buffer 2018-05-02 07:53:42 -07:00
android UPSTREAM: ANDROID: binder: remove WARN() for redundant txn error 2018-05-20 16:39:09 +05:30
ata libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs 2018-05-16 10:06:51 +02:00
atm atm: zatm: Fix potential Spectre v1 2018-05-16 10:06:52 +02:00
auxdisplay
base Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
bcma bcma: use (get|put)_device when probing/removing device driver 2017-03-12 06:37:30 +01:00
block block/loop: fix deadlock after loop_set_status 2018-04-24 09:32:03 +02:00
bluetooth Revert "Bluetooth: btusb: Fix quirk for Atheros 1525/QCA6174" 2018-05-16 10:06:52 +02:00
bus bus: brcmstb_gisb: correct support for 64-bit address output 2018-04-13 19:50:05 +02:00
cdrom cdrom: information leak in cdrom_ioctl_media_changed() 2018-04-29 07:50:07 +02:00
char virtio_console: free buffers after reset 2018-05-02 07:53:40 -07:00
clk clk: bcm2835: De-assert/assert PLL reset signal when appropriate 2018-04-24 09:32:08 +02:00
clocksource clocksource: arch_timer: make virtual counter access configurable 2018-01-22 13:16:20 +05:30
connector
cpufreq ANDROID: cpufreq: times: skip printing invalid frequencies 2018-05-20 16:40:16 +05:30
cpuidle Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
crypto crypto: s5p-sss - Fix kernel Oops in AES-ECB mode 2018-02-25 11:03:55 +01:00
dca
devfreq PM / devfreq: Propagate error from devfreq_add_device() 2018-02-22 15:44:58 +01:00
dio
dma dmaengine: at_xdmac: fix rare residue corruption 2018-04-24 09:32:08 +02:00
dma-buf
edac EDAC, mv64x60: Fix an error handling path 2018-04-13 19:50:23 +02:00
eisa
extcon extcon: palmas: Check the parent instance to prevent the NULL 2017-11-21 09:21:18 +01:00
firewire
firmware BACKPORT: kernel: add kcov code coverage 2018-01-22 13:15:43 +05:30
fmc
fpga
gpio gpio: label descriptors using the device name 2018-04-13 19:50:14 +02:00
gpu UPSTREAM: drm: virtio-gpu: set atomic flag 2018-05-20 16:40:16 +05:30
hid Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
hsi HSI: ssi_protocol: double free in ssip_pn_xmit() 2018-03-24 10:58:42 +01:00
hv Drivers: hv: vmbus: fix build warning 2018-02-25 11:03:46 +01:00
hwmon hwmon: (ina2xx) Fix access to uninitialized mutex 2018-04-24 09:32:04 +02:00
hwspinlock
hwtracing Merge tag 'v4.4.124' into linux-linaro-lsk-v4.4 2018-03-26 02:31:53 +00:00
i2c i2c: i2c-scmi: add a MS HID 2018-03-24 10:58:41 +01:00
ide
idle idle: i7300: add PCI dependency 2018-02-25 11:03:51 +01:00
iio iio: magnetometer: st_magn_spi: fix spi_device_id table 2018-04-13 19:50:21 +02:00
infiniband IB/mlx5: Use unlimited rate when static rate is not supported 2018-05-16 10:06:48 +02:00
input ANDROID: Add input support for Android Wear. 2018-05-20 16:39:45 +05:30
iommu iommu/vt-d: Fix a potential memory leak 2018-04-24 09:32:08 +02:00
ipack
irqchip Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-03-23 02:33:06 +00:00
isdn mISDN: Fix a sleep-in-atomic bug 2018-04-13 19:50:16 +02:00
leds leds: pca955x: Correct I2C Functionality 2018-04-13 19:50:09 +02:00
lguest
lightnvm
macintosh
mailbox mailbox: handle empty message in tx_tick 2017-08-06 19:19:41 -07:00
mcb
md BACKPORT: dm verity: add 'check_at_most_once' option to only validate hashes once 2018-05-20 16:40:16 +05:30
media media: v4l2-compat-ioctl32: don't oops on overlay 2018-04-24 09:32:03 +02:00
memory ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure 2017-12-16 10:33:51 +01:00
memstick
message scsi: mptsas: Disable WRITE SAME 2018-04-29 07:50:06 +02:00
mfd mfd: palmas: Reset the POWERHOLD mux during power off 2018-03-24 10:58:44 +01:00
misc ANDROID: cpufreq: times: track per-uid time in state 2018-05-20 16:39:09 +05:30
mmc Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
mtd Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
net Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
nfc Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-03-23 02:33:06 +00:00
ntb ntb_transport: fix bug calculating num_qps_mw 2017-08-30 10:19:29 +02:00
nubus
nvdimm libnvdimm, namespace: make 'resource' attribute only readable by root 2017-11-30 08:37:23 +00:00
nvme nvme: Fix managing degraded controllers 2018-02-16 20:09:47 +01:00
nvmem nvmem: imx-ocotp: Fix wrong register size 2017-08-06 19:19:46 -07:00
of Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-03-23 02:33:06 +00:00
oprofile
parisc parisc: Hide Diva-built-in serial aux and graphics card 2018-01-02 20:33:20 +01:00
parport parport_pc: Add support for WCH CH382L PCI-E single parallel port card. 2018-04-08 11:52:00 +02:00
pci ACPI / hotplug / PCI: Check presence of slot itself in get_slot_status() 2018-04-24 09:32:06 +02:00
pcmcia
perf Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-03-23 02:33:06 +00:00
phy phy: work around 'phys' references to usb-nop-xceiv devices 2018-01-23 19:50:16 +01:00
pinctrl pinctrl: Really force states during suspend/resume 2018-03-24 10:58:48 +01:00
platform ANDROID: add missing include to pdev_bus 2018-05-20 16:40:16 +05:30
pnp
power Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-03-26 02:32:06 +00:00
powercap PowerCap: Fix an error code in powercap_register_zone() 2018-04-13 19:50:05 +02:00
pps
ps3
ptp time: Change posix clocks ops interfaces to use timespec64 2018-03-24 10:58:40 +01:00
pwm pwm: tegra: Increase precision in PWM rate calculation 2018-03-22 09:23:27 +01:00
rapidio
ras
regulator regulator: anatop: set default voltage selector for pcie 2018-03-24 10:58:40 +01:00
remoteproc
reset
rpmsg
rtc Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
s390 s390/cio: update chpid descriptor after resource accessibility event 2018-04-29 07:50:07 +02:00
sbus
scsi Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
sfi
sh
sn
soc ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook 2016-11-21 11:48:09 +08:00
spi spi: davinci: fix up dma_mapping_error() incorrect patch 2018-04-08 11:52:02 +02:00
spmi spmi: Include OF based modalias in device uevent 2017-07-27 15:06:10 -07:00
ssb ssb: mark ssb_bus_register as __maybe_unused 2018-02-25 11:03:44 +01:00
staging FROMLIST: staging: Android: Add 'vsoc' driver for cuttlefish. 2018-05-20 16:40:16 +05:30
target tcm_fileio: Prevent information leak for short reads 2018-03-24 10:58:45 +01:00
tc
tee BACKPORT: tee: shm: Potential NULL dereference calling tee_shm_register() 2018-03-05 21:58:40 +05:30
thermal thermal: imx: Fix race condition in imx_thermal_probe() 2018-04-24 09:32:08 +02:00
thunderbolt thunderbolt: Resume control channel after hibernation image is created 2018-04-24 09:32:07 +02:00
tty Reduce amount of casting in drivers/tty/goldfish.c. 2018-05-20 16:40:16 +05:30
uio
usb Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-05-20 13:36:03 +05:30
uwb uwb: ensure that endpoint is interrupt 2017-10-12 11:27:35 +02:00
vfio vfio/pci: Virtualize Maximum Read Request Size 2018-04-24 09:32:09 +02:00
vhost vhost: correctly remove wait queue during poll failure 2018-04-13 19:50:25 +02:00
video ANDROID: ranchu: 32 bit framebuffer support 2018-05-20 16:39:45 +05:30
virt
virtio virtio_balloon: prevent uninitialized variable use 2018-02-25 11:03:42 +01:00
vlynq
vme vme: Fix wrong pointer utilization in ca91cx42_slave_get 2017-01-19 20:17:21 +01:00
w1 Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2017-03-20 12:03:10 +08:00
watchdog watchdog: f71808e_wdt: Fix WD_EN register read 2018-04-24 09:32:08 +02:00
xen xen/gntdev: Fix partial gntdev_mmap() cleanup 2018-03-03 10:19:45 +01:00
zorro
Kconfig tee: generic TEE subsystem 2017-07-06 11:07:40 +08:00
Makefile Merge tag 'v4.4.118' into linux-linaro-lsk-v4.4 2018-02-26 12:02:27 +08:00