android_kernel_oneplus_msm8998/drivers/atm
Gustavo A. R. Silva af4bae0938 atm: zatm: Fix potential Spectre v1
[ Upstream commit ced9e191501e52b95e1b57b8e0db00943869eed0 ]

pool can be 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/atm/zatm.c:1491 zatm_ioctl() warn: potential spectre issue
'zatm_dev->pool_info' (local cap)

Fix this by sanitizing pool before using it to index
zatm_dev->pool_info

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: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-22 14:25:52 +02:00
..
.gitignore
adummy.c
ambassador.c
ambassador.h
atmtcp.c
eni.c
eni.h
firestream.c
firestream.h
fore200e.c
fore200e.h
he.c atm: he: drop null test before destroy functions 2015-09-15 16:49:43 -07:00
he.h
horizon.c atm: horizon: Fix irq release error 2017-12-16 10:33:55 +01:00
horizon.h
idt77105.c atm: idt77105: Use setup_timer 2015-06-10 22:46:34 -07:00
idt77105.h
idt77252.c
idt77252.h
idt77252_tables.h
iphase.c atm: iphase: fix misleading indention 2015-10-12 19:56:27 -07:00
iphase.h
Kconfig
lanai.c
Makefile
midway.h
nicstar.c
nicstar.h
nicstarmac.c
nicstarmac.copyright
solos-attrlist.c
solos-pci.c solos-pci: Increase headroom on received packets 2015-09-17 21:29:07 -07:00
suni.c
suni.h
tonga.h
uPD98401.h
uPD98402.c
uPD98402.h
zatm.c atm: zatm: Fix potential Spectre v1 2018-07-22 14:25:52 +02:00
zatm.h
zeprom.h