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Fullway Wang 04e5eac8f3 fbdev: savage: Error out if pixclock equals zero 
The userspace program could pass any values to the driver through
ioctl() interface. If the driver doesn't check the value of pixclock,
it may cause divide-by-zero error.

Although pixclock is checked in savagefb_decode_var(), but it is not
checked properly in savagefb_probe(). Fix this by checking whether
pixclock is zero in the function savagefb_check_var() before
info->var.pixclock is used as the divisor.

This is similar to CVE-2022-3061 in i740fb which was fixed by
commit 15cf0b8.

Signed-off-by: Fullway Wang <fullwaywang@outlook.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2024-01-21 09:00:14 +01:00
..
accel
drm-next for 6.8:
2024-01-12 11:32:19 -08:00
accessibility
…
acpi
cxl for v6.8
2024-01-18 16:22:43 -08:00
amba
…
android
Char/Misc and other Driver changes for 6.8-rc1
2024-01-17 16:47:17 -08:00
ata
ata changes for 6.8-rc1
2024-01-11 13:49:00 -08:00
atm
net: fill in MODULE_DESCRIPTION()s for ATM
2024-01-05 08:04:23 -08:00
auxdisplay
drm-next for 6.8:
2024-01-12 11:32:19 -08:00
base
RTC for 6.8
2024-01-18 17:25:39 -08:00
bcma
…
block
for-6.8/block-2024-01-18
2024-01-18 18:22:40 -08:00
bluetooth
USB / Thunderbolt changes for 6.8-rc1
2024-01-18 11:43:55 -08:00
bus
Char/Misc and other Driver changes for 6.8-rc1
2024-01-17 16:47:17 -08:00
cache
…
cdrom
…
cdx
cdx: Unlock on error path in rescan_store()
2024-01-04 17:01:14 +01:00
char
TTY/Serial changes for 6.8-rc1
2024-01-18 11:37:24 -08:00
clk
clk: qcom: gcc-x1e80100: Replace of_device.h with explicit includes
2024-01-19 08:17:28 -06:00
clocksource
…
comedi
…
connector
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2024-01-04 18:06:46 -08:00
counter
…
cpufreq
Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-qos' into pm
2024-01-16 12:23:24 +01:00
cpuidle
…
crypto
This update includes the following changes:
2024-01-10 12:23:43 -08:00
cxl
cxl/core: use sysfs_emit() for attr's _show()
2024-01-12 14:47:04 -08:00
dax
New code for 6.8:
2024-01-10 08:45:22 -08:00
dca
…
devfreq
…
dio
…
dma
dmaengine fixes for v6.8-rc1
2024-01-20 15:03:25 -08:00
dma-buf
…
dpll
dpll: expose fractional frequency offset value to user
2024-01-05 07:58:19 -08:00
edac
Driver core changes for 6.8-rc1
2024-01-18 09:48:40 -08:00
eisa
…
extcon
…
firewire
firewire: core: fill model field in modalias of unit device for legacy layout of configuration ROM
2024-01-10 18:37:13 +09:00
firmware
Revert "firmware/sysfb: Clear screen_info state after consuming it"
2024-01-19 22:22:26 +01:00
fpga
Char/Misc and other Driver changes for 6.8-rc1
2024-01-17 16:47:17 -08:00
fsi
…
gnss
TTY/Serial changes for 6.8-rc1
2024-01-18 11:37:24 -08:00
gpio
gpio fixes for v6.8-rc1
2024-01-18 17:03:51 -08:00
gpu
drm fixes for 6.8-rc1
2024-01-19 11:50:00 -08:00
greybus
TTY/Serial changes for 6.8-rc1
2024-01-18 11:37:24 -08:00
hid
hid-for-linus-2024010801
2024-01-12 14:45:13 -08:00
hsi
…
hte
…
hv
…
hwmon
hwmon: (npcm750-pwm-fan) Fix crash observed when instantiating nuvoton,npcm750-pwm-fan
2024-01-14 07:44:38 -08:00
hwspinlock
…
hwtracing
…
i2c
This cycle, I2C removes the currently unused CLASS_DDC support
2024-01-18 17:29:01 -08:00
i3c
i3c: master: cdns: Update maximum prescaler value for i2c clock
2024-01-08 00:51:36 +01:00
idle
Power management updates for 6.8-rc1
2024-01-09 16:32:11 -08:00
iio
TTY/Serial changes for 6.8-rc1
2024-01-18 11:37:24 -08:00
infiniband
RDMA v6.8 merge window
2024-01-12 13:52:21 -08:00
input
Input updates for 6.8 merge window:
2024-01-18 17:21:35 -08:00
interconnect
Char/Misc and other Driver changes for 6.8-rc1
2024-01-17 16:47:17 -08:00
iommu
iommufd for 6.8
2024-01-18 15:28:15 -08:00
ipack
TTY/Serial changes for 6.8-rc1
2024-01-18 11:37:24 -08:00
irqchip
header cleanups for 6.8
2024-01-10 16:43:55 -08:00
isdn
…
leds
- New Drivers
2024-01-17 15:25:27 -08:00
macintosh
…
mailbox
mediatek: add CMDQ support for mt8188
2024-01-17 15:39:32 -08:00
mcb
…
md
for-6.8/block-2024-01-18
2024-01-18 18:22:40 -08:00
media
media: solo6x10: replace max(a, min(b, c)) by clamp(b, a, c)
2024-01-20 13:30:00 -08:00
memory
IOMMU Updates for Linux v6.8
2024-01-18 15:16:57 -08:00
memstick
…
message
…
mfd
TTY/Serial changes for 6.8-rc1
2024-01-18 11:37:24 -08:00
misc
This cycle, I2C removes the currently unused CLASS_DDC support
2024-01-18 17:29:01 -08:00
mmc
TTY/Serial changes for 6.8-rc1
2024-01-18 11:37:24 -08:00
most
…
mtd
This pull request contains updates for UBI and UBIFS:
2024-01-17 10:27:13 -08:00
mux
mux: mmio: use reg property when parent device is not a syscon
2024-01-04 17:01:14 +01:00
net
net: can: Use device_get_match_data()
2024-01-19 08:08:53 -06:00
nfc
…
ntb
…
nubus
nubus: Make nubus_bus_type static and constant
2024-01-03 13:33:59 +01:00
nvdimm
virtio: features, fixes
2024-01-18 16:44:03 -08:00
nvme
for-6.8/block-2024-01-18
2024-01-18 18:22:40 -08:00
nvmem
Char/Misc and other Driver changes for 6.8-rc1
2024-01-17 16:47:17 -08:00
of
IOMMU Updates for Linux v6.8
2024-01-18 15:16:57 -08:00
opp
OPP: Rename 'rate_clk_single'
2024-01-05 15:55:41 +05:30
parisc
parisc/power: Fix power soft-off button emulation on qemu
2024-01-07 22:59:16 +01:00
parport
…
pci
cxl for v6.8
2024-01-18 16:22:43 -08:00
pcmcia
…
peci
…
perf
ACPI updates for 6.8-rc1
2024-01-09 16:12:44 -08:00
phy
phy-for-6.8
2024-01-18 17:11:43 -08:00
pinctrl
This is the main pin control pull request for the v6.8 kernel series.
2024-01-17 15:55:33 -08:00
platform
USB / Thunderbolt changes for 6.8-rc1
2024-01-18 11:43:55 -08:00
pmdomain
Driver core changes for 6.8-rc1
2024-01-18 09:48:40 -08:00
pnp
More ACPI updates for 6.8-rc1
2024-01-17 14:37:40 -08:00
power
power: supply: bq24190_charger: Fix "initializer element is not constant" error
2024-01-19 01:03:17 +01:00
powercap
…
pps
…
ps3
…
ptp
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2024-01-04 18:06:46 -08:00
pwm
pwm: jz4740: Don't use dev_err_probe() in .request()
2024-01-12 18:25:05 +01:00
rapidio
…
ras
…
regulator
pwm: Changes for v6.8-rc1
2024-01-12 14:59:50 -08:00
remoteproc
…
reset
SoC: driver updates for 6.8
2024-01-11 11:31:46 -08:00
rpmsg
…
rtc
rtc: nuvoton: Compatible with NCT3015Y-R and NCT3018Y-R
2024-01-18 01:05:33 +01:00
s390
s390 updates for 6.8 merge window part 2
2024-01-18 14:11:25 -08:00
sbus
…
scsi
SCSI misc on 20240120
2024-01-20 09:42:32 -08:00
sh
maple: make maple_bus_type static and const
2024-01-04 14:37:17 +01:00
siox
…
slimbus
…
soc
Char/Misc and other Driver changes for 6.8-rc1
2024-01-17 16:47:17 -08:00
soundwire
soundwire updates for 6.7
2024-01-18 17:08:31 -08:00
spi
spi: Fix for v6.8
2024-01-19 12:50:09 -08:00
spmi
…
ssb
…
staging
This cycle, I2C removes the currently unused CLASS_DDC support
2024-01-18 17:29:01 -08:00
target
SCSI misc on 20240120
2024-01-20 09:42:32 -08:00
tc
…
tee
Another moderately busy cycle for documentation, including:
2024-01-11 19:46:52 -08:00
thermal
thermal: loongson2: Replace of_device.h with explicit includes
2024-01-19 08:08:53 -06:00
thunderbolt
USB / Thunderbolt changes for 6.8-rc1
2024-01-18 11:43:55 -08:00
tty
RISC-V Patches for the 6.8 Merge Window, Part 4
2024-01-20 11:06:04 -08:00
ufs
SCSI misc on 20240120
2024-01-20 09:42:32 -08:00
uio
uio: Fix use-after-free in uio_open
2024-01-04 17:03:47 +01:00
usb
USB / Thunderbolt changes for 6.8-rc1
2024-01-18 11:43:55 -08:00
vdpa
virtio: features, fixes
2024-01-18 16:44:03 -08:00
vfio
VFIO updates for v6.8-rc1
2024-01-18 15:57:25 -08:00
vhost
virtio: features, fixes
2024-01-18 16:44:03 -08:00
video
fbdev: savage: Error out if pixclock equals zero
2024-01-21 09:00:14 +01:00
virt
Char/Misc and other Driver changes for 6.8-rc1
2024-01-17 16:47:17 -08:00
virtio
virtio: features, fixes
2024-01-18 16:44:03 -08:00
w1
…
watchdog
linux-watchdog 6.8-rc1 tag
2024-01-12 13:32:30 -08:00
xen
xen: branch for v6.8-rc1
2024-01-17 13:41:38 -08:00
zorro
…
Kconfig
…
Makefile
fbdev/intelfb: Remove driver
2024-01-12 12:38:37 +01:00