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linux/drivers/misc
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Gustavo A. R. Silva 71ad1a59d7 misc: hmc6352: fix potential Spectre v1 
commit de916736aa upstream.

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

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2018-12-16 22:09:16 +00:00
..
altera-stapl Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2011-10-31 15:42:54 -07:00
c2port c2port: convert class code to use bin_attrs in groups 2013-07-24 15:39:05 -07:00
carma drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
cb710 mmc: cb710: drop free_irq for devm_request_irq allocated irq 2013-09-26 13:55:30 -07:00
echo staging: echo: move to drivers/misc/ 2014-02-28 14:08:42 -08:00
eeprom eeprom: at24: check at24_read/write arguments 2018-03-03 15:51:38 +00:00
genwqe GenWQE: Fix bad page access during abort of resource allocation 2017-02-23 03:54:24 +00:00
ibmasm ibmasm: don't write out of bounds in read handler 2018-11-20 18:05:38 +00:00
lis3lv02d drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
mei mei: bus: type promotion bug in mei_nfc_if_version() 2018-12-16 22:08:14 +00:00
mic misc: mic: Fix for double fetch security bug in VOP driver 2016-08-22 22:38:29 +01:00
sgi-gru Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-03 15:48:23 -07:00
sgi-xp mm: fix GFP_THISNODE callers and clarify 2014-03-10 17:26:19 -07:00
ti-st drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
vmw_vmci vmci: type promotion bug in qp_host_get_user_memory() 2018-12-16 22:08:12 +00:00
ad525x_dpot-i2c.c misc: remove use of __devexit 2012-11-21 12:53:32 -08:00
ad525x_dpot-spi.c misc: remove use of __devexit 2012-11-21 12:53:32 -08:00
ad525x_dpot.c misc: ad525x_dpot: Fix the enabling of the "otpXen" attributes 2017-10-12 15:28:17 +01:00
ad525x_dpot.h Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc 2012-01-09 12:08:59 -08:00
apds990x.c misc: replace strict_strtoul() with kstrtoul() 2013-06-06 12:54:08 -07:00
apds9802als.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
arm-charlcd.c misc: arm-charlcd: add DT probe support 2014-05-03 19:26:25 -04:00
atmel-ssc.c ASoC: atmel_ssc_dai: make option to choose clock 2014-02-12 17:21:22 +00:00
atmel_pwm.c misc: atmel_pwm: add deferred-probing support 2013-10-29 16:22:57 -07:00
atmel_tclib.c ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter 2012-03-01 13:38:49 +01:00
bh1770glc.c misc: replace strict_strtoul() with kstrtoul() 2013-06-06 12:54:08 -07:00
bh1780gli.c misc: bh1780: probe from compatible string 2013-10-03 16:02:35 -07:00
bmp085-i2c.c misc: bmp085: Clean up and enable use of interrupt for completion. 2013-12-04 20:23:51 -08:00
bmp085-spi.c misc: bmp085: Clean up and enable use of interrupt for completion. 2013-12-04 20:23:51 -08:00
bmp085.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
bmp085.h misc: bmp085: Clean up and enable use of interrupt for completion. 2013-12-04 20:23:51 -08:00
cs5535-mfgpt.c cs5535-mfgpt: Fix quotation marks 2013-04-03 11:23:13 -07:00
ds1682.c misc: (ds1682) replace obsolete simple_strtoull() with kstrtoull() 2014-05-03 19:26:24 -04:00
dummy-irq.c treewide: Fix typo in printk 2013-05-28 12:02:13 +02:00
enclosure.c scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails. 2017-10-12 15:27:58 +01:00
fsa9480.c treewide: fix comments and printk msgs 2014-01-07 15:06:07 +01:00
hmc6352.c misc: hmc6352: fix potential Spectre v1 2018-12-16 22:09:16 +00:00
hpilo.c drivers/misc/hpilo: Correct panic when an AUX iLO is detected 2013-08-14 14:46:22 -07:00
hpilo.h misc: hpilo: increase number of max supported channels 2012-06-14 17:22:12 -07:00
ics932s401.c hwmon: Change my email address. 2013-08-27 08:28:01 -07:00
ioc4.c misc: remove use of __devexit 2012-11-21 12:53:32 -08:00
isl29003.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
isl29020.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
Kconfig misc/bmp085: Enable building as a module 2016-05-01 00:05:47 +02:00
kgdbts.c kgdb/kgdbts: support ppc64 2013-03-02 08:52:17 -06:00
lattice-ecp3-config.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
lkdtm.c lkdtm: fix handle_irq_event symbol for INT_HW_IRQ_EN 2018-06-16 22:22:00 +01:00
Makefile mfd: vexpress: Define the device as MFD cells 2014-05-15 17:02:19 +01:00
pch_phub.c pch_phub: Report error writing MAC back to user 2014-03-08 22:15:51 -08:00
phantom.c misc: phantom: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
pti.c misc: pti: remove unnecessary pci_set_drvdata() 2013-09-26 09:13:54 -07:00
spear13xx_pcie_gadget.c misc: replace strict_strtoul() with kstrtoul() 2013-06-06 12:54:08 -07:00
sram.c misc: sram: implement reserved sram areas 2014-02-28 15:31:11 -08:00
ti_dac7512.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
tifm_7xx1.c tifm: fix error return code in tifm_7xx1_probe() 2013-10-30 10:19:30 -07:00
tifm_core.c tifm: convert bus code to use dev_groups 2013-10-16 18:40:58 -07:00
tsl2550.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
vexpress-syscfg.c misc: vexpress: fix error handling vexpress_syscfg_regmap_init() 2014-06-17 17:09:40 +02:00
vmw_balloon.c MAINTAINERS: add entry for VMware Balloon driver 2014-06-20 11:47:33 -07:00