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Jinbum Park 3a2af7cccb mac80211_hwsim: Fix possible Spectre-v1 for hwsim_world_regdom_custom 
User controls @idx which to be used as index of hwsim_world_regdom_custom.
So, It can be exploited via Spectre-like attack. (speculative execution)

This kind of attack leaks address of hwsim_world_regdom_custom,
It leads an attacker to bypass security mechanism such as KASLR.

So sanitize @idx before using it to prevent attack.

I leveraged strategy [1] to find and exploit this gadget.

[1] https://github.com/jinb-park/linux-exploit/tree/master/exploit-remaining-spectre-gadget/

Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
[johannes: unwrap URL]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-08-28 11:14:56 +02:00
..
accessibility
acpi Merge branch 'acpi-soc' 2018-07-31 10:35:47 +02:00
amba Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-06-06 13:49:25 -07:00
android treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
ata ata: Remove depends on HAS_DMA in case of platform dependency 2018-07-02 13:18:22 -07:00
atm atm: zatm: Fix potential Spectre v1 2018-06-30 21:24:18 +09:00
auxdisplay treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
base Driver core fixes for 4.18-rc7 2018-07-26 09:25:03 -07:00
bcma dma-mapping updates for 4.18: 2018-06-04 10:58:12 -07:00
block zram: remove BD_CAP_SYNCHRONOUS_IO with writeback feature 2018-08-10 20:19:59 -07:00
bluetooth bluetooth: hci_nokia: Don't include linux/unaligned/le_struct.h directly. 2018-06-17 08:38:55 +09:00
bus bus: ti-sysc: Use 2-factor allocator arguments 2018-07-02 04:24:44 -07:00
cdrom treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
char In reaction to the fixes to address CVE-2018-1108, some Linux 2018-07-28 19:40:06 -07:00
clk clk: aspeed: Support HPLL strapping on ast2400 2018-07-11 09:34:25 -07:00
clocksource clocksource: arm_arch_timer: Set arch_mem_timer cpumask to cpu_possible_mask 2018-07-10 22:12:47 +02:00
connector Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
cpufreq cpufreq: intel_pstate: Limit the scope of HWP dynamic boost platforms 2018-07-31 10:39:58 +02:00
cpuidle powerpc updates for 4.18 2018-06-07 10:23:33 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-08-03 10:09:45 -07:00
dax * fix one ensures that a variable passed in by reference to 2018-07-13 10:54:01 -07:00
dca
devfreq treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
dio
dma dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate() 2018-06-28 11:57:21 +05:30
dma-buf
edac treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
eisa
extcon treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
firewire treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
firmware efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode 2018-06-22 10:58:27 +02:00
fmc treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
fpga fpga: altera-cvp: Fix an error handling path in 'altera_cvp_probe()' 2018-07-07 16:55:22 +02:00
fsi
gpio gpiolib-acpi: make sure we trigger edge events at least once on boot 2018-08-01 11:45:10 +02:00
gpu drm-misc-fixes pull request for v4.18-rc7: 2018-08-01 08:54:35 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-07-09 17:16:11 -07:00
hsi
hv treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
hwmon hwmon: (nct6775) Fix loop limit 2018-06-16 16:40:36 -07:00
hwspinlock hwspinlock updates for v4.18 2018-06-11 12:09:19 -07:00
hwtracing treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
i2c i2c: xlp9xx: Fix case where SSIF read transaction completes early 2018-08-09 17:41:13 +02:00
ide treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
idle
iio iio: imu: inv_mpu6050: Fix probe() failure on older ACPI based machines 2018-06-24 14:50:52 +01:00
infiniband One bug for missing user input validation: 2018-08-03 10:49:47 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-07-27 09:53:45 -07:00
iommu Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices" 2018-07-20 13:55:56 +02:00
ipack treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
irqchip irqchip/gic-v3-its: Fix reprogramming of redistributors on CPU hotplug 2018-06-22 14:22:02 +02:00
isdn Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
leds treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
lightnvm for-linus-20180623 2018-06-24 06:33:54 +08:00
macintosh powerpc updates for 4.18 2018-06-07 10:23:33 -07:00
mailbox treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
mcb
md - Fix DM writecache target to allow an optional offset to the start of 2018-07-20 14:24:17 -07:00
media media fixes for v4.18-rc8 2018-08-02 16:55:42 -07:00
memory - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
memstick treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
message treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
mfd Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-06-14 16:21:46 +09:00
misc Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-07-22 12:04:51 -07:00
mmc mmc: mxcmmc: Fix missing parentheses and brace 2018-07-16 11:45:44 +02:00
mtd mtd: spi-nor: cadence-quadspi: Fix direct mode write timeouts 2018-07-03 10:01:44 +02:00
mux
net mac80211_hwsim: Fix possible Spectre-v1 for hwsim_world_regdom_custom 2018-08-28 11:14:56 +02:00
nfc NFC: pn533: Fix wrong GFP flag usage 2018-06-25 21:36:45 +08:00
ntb - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
nubus Char/Misc driver patches for 4.18-rc1 2018-06-05 16:20:22 -07:00
nvdimm * fix one ensures that a variable passed in by reference to 2018-07-13 10:54:01 -07:00
nvme for-linus-20180727 2018-07-27 12:51:00 -07:00
nvmem nvmem: Don't let a NULL cell_id for nvmem_cell_get() crash us 2018-07-07 17:30:25 +02:00
of of: overlay: update phandle cache on overlay apply and remove 2018-07-16 08:41:32 -06:00
opp PM / OPP: Update voltage in case freq == old_freq 2018-06-19 15:53:32 +05:30
oprofile treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
parisc dma-mapping updates for 4.18: 2018-06-04 10:58:12 -07:00
parport docs: Fix some broken references 2018-06-15 18:10:01 -03:00
pci pci-v4.18-fixes-5 2018-08-02 10:59:19 -07:00
pcmcia treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
perf drivers/perf: xgene_pmu: Fix IOB SLOW PMU parser error 2018-06-18 17:48:42 +01:00
phy phy: mapphone-mdm6600: Fix wrong enum used for status lines 2018-06-29 12:00:22 +05:30
pinctrl pinctrl: nsp: Fix potential NULL dereference 2018-07-14 12:47:04 +02:00
platform platform/x86: dell-laptop: Fix backlight detection 2018-07-20 15:29:59 +03:00
pnp media updates for v4.18-rc1 2018-06-07 12:34:37 -07:00
power treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
powercap treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
pps
ps3
ptp ptp: fix missing break in switch 2018-07-18 15:25:25 -07:00
pwm pwm: Changes for v4.18-rc1 2018-06-14 16:25:43 +09:00
rapidio treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
ras
regulator treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
remoteproc treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX 2018-06-15 07:55:25 +09:00
reset - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
rpmsg rpmsg: smd: do not use mananged resources for endpoints and channels 2018-06-04 12:35:03 -07:00
rtc rtc: fix alarm read and set offset 2018-07-13 10:37:54 +02:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-07-06 09:14:34 -07:00
sbus fix a series of Documentation/ broken file name references 2018-06-15 18:10:01 -03:00
scsi SCSI fixes on 20180731 2018-07-31 09:46:36 -07:00
sfi
sh treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
siox
slimbus treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sn
soc i.MX fixes for 4.18, round 3: 2018-07-19 15:09:59 -07:00
soundwire docs: Fix more broken references 2018-06-15 18:11:26 -03:00
spi treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
spmi
ssb
staging staging: ashmem: Fix SIGBUS crash when traversing mmaped ashmem pages 2018-08-01 10:08:57 -07:00
target scsi: target: iscsi: cxgbit: fix max iso npdu calculation 2018-07-12 23:04:06 -04:00
tc
tee
thermal - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
thunderbolt thunderbolt: Notify userspace when boot_acl is changed 2018-07-07 17:29:17 +02:00
tty vt: prevent leaking uninitialized data to userspace via /dev/vcs* 2018-06-28 21:34:39 +09:00
uio uio: fix crash after the device is unregistered 2018-07-07 16:57:35 +02:00
usb usb: core: handle hub C_PORT_OVER_CURRENT condition 2018-07-21 08:38:29 +02:00
uwb treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
vfio powerpc fixes for 4.18 #4 2018-07-21 16:46:53 -07:00
vhost vhost: reset metadata cache when initializing new IOTLB 2018-08-08 09:44:39 -07:00
video Solve a series of broken links for files under Documentation: 2018-06-17 05:25:18 +09:00
virt treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
virtio virtio_balloon: fix another race between migration and ballooning 2018-07-30 16:45:33 +03:00
visorbus
vlynq
vme
w1 Char/Misc driver patches for 4.18-rc1 2018-06-05 16:20:22 -07:00
watchdog MIPS changes for 4.18 2018-06-12 12:56:02 -07:00
xen xen: fixes for 4.18-rc2 2018-06-23 20:44:11 +08:00
zorro - Introduce arithmetic overflow test helper functions (Rasmus) 2018-06-06 17:27:14 -07:00
Kconfig
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