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64463253511adad375549a79cf2094de6effe817
linux/drivers/video/fbdev
History
Tetsuo Handa 2b537106bc video: fbdev: fix OOB read in vga_8planes_imageblit() 
commit bd018a6a75 upstream.

syzbot is reporting OOB read at vga_8planes_imageblit() [1], for
"cdat[y] >> 4" can become a negative value due to "const char *cdat".

[1] https://syzkaller.appspot.com/bug?id=0d7a0da1557dcd1989e00cb3692b26d4173b4132

Reported-by: syzbot <syzbot+69fbd3e01470f169c8c4@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/90b55ec3-d5b0-3307-9f7c-7ff5c5fd6ad3@i-love.sakura.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-17 13:45:30 +02:00
..
aty
mach64: fix image corruption due to reading accelerator registers
2018-11-21 09:19:17 +01:00
core
fbcon: remove now unusued 'softback_lines' cursor() argument
2020-09-17 13:45:30 +02:00
geode
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
2018-02-15 01:15:52 +01:00
i810
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
intelfb
video: fbdev: intelfb: deprecate pci_get_bus_and_slot()
2018-01-17 08:16:46 -06:00
kyro
video: fbdev: kyro: constify pci_device_id.
2017-08-01 17:20:42 +02:00
matrox
video: matroxfb: Delete an error message for a failed memory allocation in matroxfb_crtc2_probe()
2018-03-28 16:34:28 +02:00
mb862xx
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
mbx
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mmp
Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux
2018-06-17 05:00:24 +09:00
nvidia
Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux
2018-06-17 05:00:24 +09:00
omap
fbdev: omapfb: off by one in omapfb_register_client()
2018-07-24 19:11:28 +02:00
omap2
omapfb: fix multiple reference count leaks due to pm_runtime_get_sync
2020-09-03 11:24:20 +02:00
riva
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
savage
video: fbdev: savage: Replace mdelay with usleep_range in savage_init_hw
2018-04-24 18:11:21 +02:00
sis
video: fbdev: sis: Remove unnecessary parentheses and commented code
2020-04-23 10:30:15 +02:00
vermilion
video: fbdev: vermilion: use 64-bit arithmetic instead of 32-bit
2018-03-12 17:06:54 +01:00
via
video: fbdev: mark expected switch fall-throughs
2018-07-24 19:11:28 +02:00
68328fb.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
acornfb.c
drivers/video/fbdev: Fixing coding guidelines in acornfb.c
2017-04-07 17:03:24 +02:00
acornfb.h
…
amba-clcd-nomadik.c
Merge tag 'fbdev-v4.11' of git://github.com/bzolnier/linux
2017-02-25 13:20:22 -08:00
amba-clcd-nomadik.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
amba-clcd-versatile.c
video: ARM CLCD: use panel device node for panel initialization
2017-01-30 17:39:48 +01:00
amba-clcd-versatile.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
amba-clcd.c
video: ARM CLCD: Improve a size determination in clcdfb_probe()
2018-03-28 16:34:29 +02:00
amifb.c
fb: amifb: fix build warnings when not builtin
2018-07-31 13:06:58 +02:00
arcfb.c
Annotate hardware config module parameters in drivers/video/
2017-04-20 12:02:32 +01:00
arkfb.c
video: fbdev: arkfb: constify pci_device_id.
2017-08-01 17:20:42 +02:00
asiliantfb.c
video: fbdev: asiliantfb: constify pci_device_id.
2017-08-01 17:20:41 +02:00
atafb_iplan2p2.c
…
atafb_iplan2p4.c
…
atafb_iplan2p8.c
…
atafb_mfb.c
…
atafb_utils.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
atafb.c
fbdev: kill fb_rotate
2016-02-26 13:28:35 +02:00
atafb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
atmel_lcdfb.c
atmel_lcdfb: support native-mode display-timings
2019-11-24 08:20:35 +01:00
au1100fb.c
Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux
2018-06-17 05:00:24 +09:00
au1100fb.h
MIPS: Alchemy: au1100fb: use clk framework
2014-07-30 14:10:39 +02:00
au1200fb.c
video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"
2018-05-15 12:41:11 +02:00
au1200fb.h
fbdev: au1200fb: delete duplicate header contents
2018-01-04 16:53:49 +01:00
broadsheetfb.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
bt431.h
video: fbdev: bt431: Correct cursor format control macro
2016-02-26 13:06:11 +02:00
bt455.h
video: fbdev: pmag-ba-fb: Optimize Bt455 colormap addressing
2016-02-26 13:06:11 +02:00
bw2.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
c2p_core.h
…
c2p_iplan2.c
…
c2p_planar.c
…
c2p.h
…
carminefb_regs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
carminefb.c
…
carminefb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cg3.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
cg6.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
cg14.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
chipsfb.c
fbdev: chipsfb: remove set but not used variable 'size'
2020-01-27 14:50:21 +01:00
cirrusfb.c
video: fbdev: cirrusfb: mark expected switch fall-throughs
2017-11-09 18:09:32 +01:00
clps711x-fb.c
video: clps711x-fb: release disp device node in probe()
2019-02-12 19:47:15 +01:00
clps711xfb.c
video: fbdev: drop owner assignment from platform_drivers
2014-10-20 16:21:51 +02:00
cobalt_lcdfb.c
video: cobalt_lcdfb: constify fb_fix_screeninfo structure
2017-08-01 17:20:39 +02:00
controlfb.c
powerpc: Move Power Macintosh drivers to generic byteswappers
2015-03-23 14:29:40 +11:00
controlfb.h
fbdev: controlfb: Add missing modes to fix out of bounds access
2017-11-09 18:09:33 +01:00
cyber2000fb.c
video: fbdev: make fb_videomode const
2017-09-04 16:00:49 +02:00
cyber2000fb.h
…
da8xx-fb.c
fbdev: da8xx-fb: Drop unnecessary static
2017-08-01 17:20:39 +02:00
dnfb.c
video/fbdev/dnfb: Use common error handling code in dnfb_probe()
2017-11-09 18:09:31 +01:00
edid.h
…
efifb.c
efi: avoid error message when booting under Xen
2020-08-26 10:31:05 +02:00
ep93xx-fb.c
dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
2016-03-09 14:57:51 +01:00
fb-puv3.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
ffb.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
fm2fb.c
video: fm2fb: constify zorro_device_id
2017-09-04 16:00:49 +02:00
fsl-diu-fb.c
video: fbdev: fsl-diu-fb: Remove VLA usage
2018-07-24 19:11:26 +02:00
g364fb.c
…
gbefb.c
dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
2016-03-09 14:57:51 +01:00
goldfishfb.c
video: goldfishfb: fix memory leak on driver remove
2018-07-24 19:11:27 +02:00
grvga.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
gxt4500.c
gxt4500: enable panning
2015-10-08 12:19:39 +03:00
hecubafb.c
video: fbdev: constify fb_fix_screeninfo and fb_var_screeninfo structures
2016-09-27 11:16:35 +03:00
hgafb.c
video: hgafb: fix potential NULL pointer dereference
2019-06-15 11:54:10 +02:00
hitfb.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
hpfb.c
hpfb: use probe_kernel_read()
2017-05-27 15:41:17 -04:00
hyperv_fb.c
use the new async probing feature for the hyperv drivers
2018-07-03 13:02:28 +02:00
i740_reg.h
…
i740fb.c
video: fbdev: mark expected switch fall-throughs
2018-07-24 19:11:28 +02:00
imsttfb.c
video: imsttfb: fix potential NULL pointer dereferences
2019-06-15 11:54:10 +02:00
imxfb.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
jz4740_fb.c
fbdev: jz4740-fb: Let the pinctrl driver configure the pins
2017-05-22 17:22:06 +02:00
Kconfig
fbdev: fix broken menu dependencies
2019-11-24 08:20:37 +01:00
leo.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
macfb.c
nubus: Adopt standard linked list implementation
2018-01-16 16:47:29 +01:00
macmodes.c
…
macmodes.h
…
Makefile
video: fbdev: remove unused sh_mobile_meram driver
2018-05-14 15:47:30 +02:00
maxinefb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
metronomefb.c
video: fbdev: metronomefb: fix some off by one bugs
2018-07-24 19:11:26 +02:00
mx3fb.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mxsfb.c
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
n411.c
Annotate hardware config module parameters in drivers/video/
2017-04-20 12:02:32 +01:00
neofb.c
video: fbdev: neofb: fix memory leak in neo_scan_monitor()
2020-08-19 08:14:51 +02:00
nuc900fb.c
dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
2016-03-09 14:57:51 +01:00
nuc900fb.h
…
ocfb.c
ocfb: fix tgdel and tvdel timing parameters
2016-01-29 13:34:07 +02:00
offb.c
video: offb: Deallocate the color map
2018-03-12 17:06:54 +01:00
p9100.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
platinumfb.c
powerpc: Move Power Macintosh drivers to generic byteswappers
2015-03-23 14:29:40 +11:00
platinumfb.h
…
pm2fb.c
video: fbdev: mark expected switch fall-throughs
2018-07-24 19:11:28 +02:00
pm3fb.c
video: fbdev: pm3fb: constify pci_device_id.
2017-08-01 17:20:45 +02:00
pmag-aa-fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
pmag-ba-fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
pmagb-b-fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
ps3fb.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
pvr2fb.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
pxa3xx-gcu.c
video: fbdev: pxa3xx_gcu: add devicetree bindings
2018-07-24 19:11:25 +02:00
pxa3xx-gcu.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pxa168fb.c
pxa168fb: Fix the function used to release some memory in an error handling path
2020-02-24 08:34:36 +01:00
pxa168fb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pxafb.c
video: pxafb: Fix the function used to balance a 'dma_alloc_coherent()' call
2020-08-19 08:14:54 +02:00
pxafb.h
video: fbdev: pxafb: Add support for lcd-supply regulator
2018-07-24 19:11:26 +02:00
q40fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
s1d13xxxfb.c
fbdev: s1d13xxxfb: remove m32r specific hacks
2018-03-26 15:56:46 +02:00
s3c2410fb.c
video: s3c2410fb: Register cpufreq notifier only on S3C24xx
2016-08-11 17:54:55 +03:00
s3c2410fb.h
video: s3c2410fb: Register cpufreq notifier only on S3C24xx
2016-08-11 17:54:55 +03:00
s3c-fb.c
video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms
2018-03-28 16:34:29 +02:00
s3fb.c
video: fbdev: s3fb: constify pci_device_id.
2017-08-01 17:20:45 +02:00
sa1100fb.c
video: sa1100fb: move pseudo palette into sa1100fb_info structure
2017-10-17 16:01:13 +02:00
sa1100fb.h
video: sa1100fb: move pseudo palette into sa1100fb_info structure
2017-10-17 16:01:13 +02:00
sbuslib.c
fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper()
2019-11-24 08:20:36 +01:00
sbuslib.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sh7760fb.c
video: fbdev: drop owner assignment from platform_drivers
2014-10-20 16:21:51 +02:00
sh_mobile_lcdcfb.c
video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
2018-05-14 15:47:30 +02:00
sh_mobile_lcdcfb.h
video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
2018-05-14 15:47:30 +02:00
simplefb.c
video: fbdev: simplefb: Stop including <linux/clk-provider.h>
2018-07-03 17:43:09 +02:00
skeletonfb.c
docs: fix broken references with multiple hints
2018-06-15 18:10:01 -03:00
sm501fb.c
video: sm501fb: Improve a size determination in sm501fb_probe()
2018-04-26 12:24:18 +02:00
sm712.h
fbdev: sm712fb: use 1024x768 by default on non-MIPS, fix garbled display
2019-05-25 18:23:36 +02:00
sm712fb.c
video: fbdev: sm712fb: fix an issue about iounmap for a wrong address
2020-08-19 08:14:54 +02:00
smscufx.c
video: smscufx: Delete an error message for a failed memory allocation in ufx_realloc_framebuffer()
2018-03-28 16:34:28 +02:00
ssd1307fb.c
video: ssd1307fb: Start page range at page_offset
2019-10-07 18:56:30 +02:00
sstfb.c
…
sticore.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
stifb.c
video/fbdev/stifb: Fix spelling mistake in fall-through annotation
2018-09-26 18:50:54 +02:00
sunxvr500.c
video: fbdev: sunxvr500: constify pci_device_id.
2017-08-01 17:20:43 +02:00
sunxvr1000.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
sunxvr2500.c
video: fbdev: sunxvr2500: constify pci_device_id.
2017-08-01 17:20:41 +02:00
tcx.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
tdfxfb.c
video: fbdev: mark expected switch fall-throughs
2018-07-24 19:11:28 +02:00
tgafb.c
…
tmiofb.c
…
tridentfb.c
video: fbdev: tridentfb: remove deadcode on unreachable case statement
2018-07-24 19:11:28 +02:00
udlfb.c
udlfb: fix some inconsistent NULL checking
2019-05-31 06:46:02 -07:00
uvesafb.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
valkyriefb.c
video: fbdev: valkyriefb.c: use container_of to resolve fb_info_valkyrie from fb_info
2014-09-30 13:06:01 +03:00
valkyriefb.h
…
vesafb.c
video: fbdev: vesafb: use arch_phys_wc_add()
2015-06-16 09:42:11 +03:00
vfb.c
vfb: fix video mode and line_length being set when loaded
2018-01-04 16:53:50 +01:00
vga16fb.c
video: fbdev: fix OOB read in vga_8planes_imageblit()
2020-09-17 13:45:30 +02:00
vt8500lcdfb.c
video/fbdev/vt8500lcdfb: Delete an error message for a failed memory allocation in vt8500lcd_probe()
2017-12-29 19:48:44 +01:00
vt8500lcdfb.h
…
vt8623fb.c
video: fbdev: vt8623fb: constify vt8623_timing_regs
2017-08-18 19:56:40 +02:00
w100fb.c
video: fbdev: w100fb: Fix a potential double free.
2020-06-22 09:05:06 +02:00
w100fb.h
…
wm8505fb_regs.h
…
wm8505fb.c
video/fbdev/wm8505fb: Delete an error message for a failed memory allocation in wm8505fb_probe()
2017-12-29 19:48:43 +01:00
wmt_ge_rops.c
video: fbdev: drop owner assignment from platform_drivers
2014-10-20 16:21:51 +02:00
wmt_ge_rops.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xen-fbfront.c
treewide: Use array_size() in vmalloc()
2018-06-12 16:19:22 -07:00
xilinxfb.c
video: fbdev: Fix multiple style issues in xilinxfb
2017-08-21 16:49:57 +02:00