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Gustavo A. R. Silva de916736aa misc: hmc6352: fix potential Spectre v1 
val is indirectly controlled by user-space, hence leading to a
potential exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:

drivers/misc/hmc6352.c:54 compass_store() warn: potential spectre issue
'map' [r]

Fix this by sanitizing val before using it to index map

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2

Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12 09:31:00 +02:00
..
altera-stapl treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
c2port kmemcheck: remove annotations 2017-11-15 18:21:04 -08:00
cardreader misc: rtsx: make several functions static 2018-07-03 13:01:48 +02:00
cb710 cb710: Convert to new IDA API 2018-08-21 23:54:18 -04:00
cxl Merge branch 'akpm' (patches from Andrew) 2018-08-17 16:49:31 -07:00
echo misc: Remove Blackfin DSP echo support 2018-03-26 15:56:37 +02:00
eeprom Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-08-21 17:40:46 -07:00
genwqe genwqe: card_base: Use true and false for boolean values 2018-08-05 16:29:11 +02:00
ibmasm ibmasm: don't write out of bounds in read handler 2018-07-07 09:59:35 +02:00
lis3lv02d vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
lkdtm lkdtm: Add missing SPDX-License-Identifier line 2018-03-06 19:18:55 -08:00
mei mei: bus: need to unlink client before freeing 2018-09-12 09:14:24 +02:00
mic mm, oom: distinguish blockable mode for mmu notifiers 2018-08-22 10:52:44 -07:00
ocxl Merge branch 'akpm' (patches from Andrew) 2018-08-17 16:49:31 -07:00
sgi-gru mm, oom: distinguish blockable mode for mmu notifiers 2018-08-22 10:52:44 -07:00
sgi-xp sgi-xp: xpc_partition: mark expected switch fall-throughs 2018-07-07 17:38:57 +02:00
ti-st misc: ti-st: Fix memory leak in the error path of probe() 2018-08-02 10:35:04 +02:00
vmw_vmci vmci: type promotion bug in qp_host_get_user_memory() 2018-07-07 17:32:40 +02:00
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c misc: ad525x_dpot: macros should not use a trailing semicolon 2017-12-18 16:02:26 +01:00
ad525x_dpot.h misc: ad525x_dpot: Unnecessary space before function pointer arguments 2017-12-18 15:59:17 +01:00
apds990x.c misc: apds990x: Missing a blank line after declarations. 2017-12-18 16:02:26 +01:00
apds9802als.c
aspeed-lpc-ctrl.c misc: aspeed-lpc-ctrl: Enable FWH and A2H bridge cycles 2018-03-15 18:20:51 +01:00
aspeed-lpc-snoop.c drivers/misc: Aspeed LPC snoop output using misc chardev 2018-07-16 13:30:47 +02:00
atmel_tclib.c
atmel-ssc.c
bh1770glc.c
cs5535-mfgpt.c
ds1682.c misc: ds1682: Ignore update-in-progress ETC reads 2018-01-09 17:03:57 +01:00
dummy-irq.c
enclosure.c misc: enclosure: Remove unnecessary error check 2017-12-07 18:45:31 +01:00
fsa9480.c misc: fsa9480: Add blank line after declarations. 2018-01-09 17:03:57 +01:00
hmc6352.c misc: hmc6352: fix potential Spectre v1 2018-09-12 09:31:00 +02:00
hpilo.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
hpilo.h misc: hpilo: Use SPDX-License-Identifier 2017-12-07 18:45:31 +01:00
ibmvmc.c misc: ibmvsm: Fix wrong assignment of return code 2018-09-12 09:31:00 +02:00
ibmvmc.h misc: IBM Virtual Management Channel Driver (VMC) 2018-05-14 16:35:42 +02:00
ics932s401.c misc: ics932s401: open brace should be on the previous line 2017-12-18 16:00:57 +01:00
ioc4.c
isl29003.c misc: isl29003: Missing a blank line after declarations 2017-12-07 18:45:31 +01:00
isl29020.c
Kconfig misc: IBM Virtual Management Channel Driver (VMC) 2018-05-14 16:35:42 +02:00
kgdbts.c misc: kgdbts: Display progress of asynchronous tests 2018-01-25 08:40:17 -06:00
lattice-ecp3-config.c
Makefile misc: IBM Virtual Management Channel Driver (VMC) 2018-05-14 16:35:42 +02:00
pch_phub.c
pci_endpoint_test.c pci_endpoint_test: Add 2 ioctl commands 2018-07-19 11:46:57 +01:00
phantom.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
pti.c drivers/misc/intel/pti: Rename the header file to free up the namespace 2017-12-17 12:52:34 +01:00
qcom-coincell.c
spear13xx_pcie_gadget.c
sram-exec.c
sram.c misc: sram: enable clock before registering regions 2018-07-06 16:48:15 +02:00
sram.h
tifm_7xx1.c misc: tifm: Remove VLA 2018-04-23 13:31:27 +02:00
tifm_core.c
tsl2550.c tsl2550: fix lux1_input error in low light 2018-07-07 17:44:52 +02:00
vexpress-syscfg.c misc: vexpress/syscfg: Use devm_ioremap_resource() to map memory 2018-07-16 13:32:08 +02:00
vmw_balloon.c Merge 4.18-rc5 into char-misc-next 2018-07-16 09:04:54 +02:00