linux/drivers/misc
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
c2port
cardreader
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
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
ibmasm
lis3lv02d
lkdtm
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
ti-st
vmw_vmci
Kconfig
Makefile
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c
ad525x_dpot.h
apds990x.c
apds9802als.c
aspeed-lpc-ctrl.c
aspeed-lpc-snoop.c
atmel-ssc.c
atmel_tclib.c
bh1770glc.c
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
enclosure.c
fsa9480.c
hmc6352.c misc: hmc6352: fix potential Spectre v1 2018-09-12 09:31:00 +02:00
hpilo.c
hpilo.h
ibmvmc.c misc: ibmvsm: Fix wrong assignment of return code 2018-09-12 09:31:00 +02:00
ibmvmc.h
ics932s401.c
ioc4.c
isl29003.c
isl29020.c
kgdbts.c
lattice-ecp3-config.c
pch_phub.c
pci_endpoint_test.c
phantom.c
pti.c
qcom-coincell.c
spear13xx_pcie_gadget.c
sram-exec.c
sram.c
sram.h
tifm_7xx1.c
tifm_core.c
tsl2550.c
vexpress-syscfg.c
vmw_balloon.c