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4e8ca0d44cdecb61c02bc00e92d337ebdbd2e366
linux/drivers/video/fbdev
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Vlad Tsyrklevich 9171634695 omap2fb: Fix stack memory disclosure 
commit a01421e448 upstream.

Using [1] for static analysis I found that the OMAPFB_QUERY_PLANE,
OMAPFB_GET_COLOR_KEY, OMAPFB_GET_DISPLAY_INFO, and OMAPFB_GET_VRAM_INFO
cases could all leak uninitialized stack memory--either due to
uninitialized padding or 'reserved' fields.

Fix them by clearing the shared union used to store copied out data.

[1] https://github.com/vlad902/kernel-uninitialized-memory-checker

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Reviewed-by: Kees Cook <keescook@chromium.org>
Fixes: b39a982dde ("OMAP: DSS2: omapfb driver")
Cc: security@kernel.org
[b.zolnierkie: prefix patch subject with "omap2fb: "]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-23 08:09:49 +01:00
..
aty
mach64: fix image corruption due to reading accelerator registers
2018-11-21 09:24:08 +01:00
core
fbdev: Distinguish between interlaced and progressive modes
2018-09-26 08:38:02 +02:00
geode
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
2018-02-22 15:42:24 +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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
kyro
video: fbdev: kyro: constify pci_device_id.
2017-08-01 17:20:42 +02:00
matrox
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mb862xx
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mbx
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mmp
video: fbdev/mmp: add MODULE_LICENSE
2018-02-25 11:07:51 +01:00
nvidia
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
omap
fbdev: omapfb: off by one in omapfb_register_client()
2018-09-26 08:38:01 +02:00
omap2
omap2fb: Fix stack memory disclosure
2019-01-23 08:09:49 +01:00
riva
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
savage
video: fbdev: savage: constify pci_device_id.
2017-08-01 17:20:42 +02:00
sis
video: fbdev: sis: fix duplicated code for different branches
2017-09-04 16:00:50 +02:00
vermilion
video: fbdev: make fb_videomode const
2017-09-04 16:00:49 +02:00
via
fbdev/via: fix defined but not used warning
2018-09-26 08:38:01 +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: constify amba_id
2017-09-04 16:00:49 +02:00
amifb.c
video: fbdev: amifb: remove impossible condition
2017-02-08 16:44:00 +01:00
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
video: fbdev: atmel_lcdfb: fix display-timings lookup
2018-02-22 15:42:27 +01:00
au1100fb.c
au1100fb: remove a bogus dma_free_nonconsistent call
2017-06-28 06:54:57 -07:00
au1100fb.h
…
au1200fb.c
video: fbdev: au1200fb: Return an error code if a memory allocation fails
2017-12-20 10:10:23 +01:00
au1200fb.h
…
auo_k190x.c
sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h>
2017-03-03 01:45:16 +01:00
auo_k190x.h
…
auo_k1900fb.c
…
auo_k1901fb.c
…
bf54x-lq043fb.c
…
bf537-lq035.c
fbdev: kill fb_rotate
2016-02-26 13:28:35 +02:00
bfin_adv7393fb.c
fb: adv7393: off by one in probe function
2016-08-30 12:06:12 +03:00
bfin_adv7393fb.h
fbdev/bfin_adv7393fb: move DRIVER_NAME before its first use
2016-08-02 19:35:05 -04:00
bfin-lq035q1-fb.c
video: bfin-lq035q1-fb: constify dev_pm_ops
2017-08-01 17:20:40 +02:00
bfin-t350mcqb-fb.c
…
broadsheetfb.c
…
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
video/chips: constify fb_fix_screeninfo and fb_var_screeninfo structures
2017-08-01 17:20:39 +02:00
cirrusfb.c
…
clps711x-fb.c
video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
2016-07-06 17:38:19 +02:00
clps711xfb.c
…
cobalt_lcdfb.c
video: cobalt_lcdfb: constify fb_fix_screeninfo structure
2017-08-01 17:20:39 +02:00
controlfb.c
…
controlfb.h
fbdev: controlfb: Add missing modes to fix out of bounds access
2017-12-20 10:10:23 +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: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
edid.h
…
efifb.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: constify mfb_template and fsl_diu_match.
2017-07-04 17:47:22 +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
2018-09-26 08:38:01 +02:00
grvga.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
gxt4500.c
…
hecubafb.c
video: fbdev: constify fb_fix_screeninfo and fb_var_screeninfo structures
2016-09-27 11:16:35 +03:00
hgafb.c
video: fbdev: constify fb_fix_screeninfo and fb_var_screeninfo structures
2016-09-27 11:16:35 +03:00
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
drivers:hv: Use new vmbus_mmio_free() from client drivers.
2016-04-30 14:01:37 -07:00
i740_reg.h
…
i740fb.c
video: fbdev: constify fb_fix_screeninfo and fb_var_screeninfo structures
2016-09-27 11:16:35 +03:00
igafb.c
…
imsttfb.c
video: fbdev: imsttfb: constify pci_device_id.
2017-08-01 17:20:43 +02:00
imxfb.c
video: fbdev: imxfb: use after free in imxfb_remove()
2017-07-31 18:45:41 +02:00
jz4740_fb.c
fbdev: jz4740-fb: Let the pinctrl driver configure the pins
2017-05-22 17:22:06 +02:00
Kconfig
video: fbdev: Enable Xilinx FB for ZynqMP
2017-08-21 16:49:57 +02:00
leo.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
macfb.c
…
macmodes.c
…
macmodes.h
…
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
maxinefb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
metronomefb.c
lib/vsprintf.c: remove %Z support
2017-02-27 18:43:47 -08:00
mx3fb.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mxsfb.c
video: mxsfb: Fix framebuffer corruption on mx6sx
2016-08-30 11:59:33 +03:00
n411.c
Annotate hardware config module parameters in drivers/video/
2017-04-20 12:02:32 +01:00
neofb.c
video: fbdev: neofb: constify pci_device_id.
2017-08-01 17:20:44 +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: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
p9100.c
video: fbdev: Convert to using %pOF instead of full_name
2017-08-07 17:22:13 +02:00
platinumfb.c
…
platinumfb.h
…
pm2fb.c
video: fbdev: pm2fb: constify pci_device_id.
2017-08-01 17:20:43 +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
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
pxa3xx-gcu.c
video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe()
2017-08-21 16:49:58 +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: prepare the clock
2018-11-04 14:52:39 +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: fbdev: pxafb: clear allocated memory for video modes
2018-09-26 08:38:01 +02:00
pxafb.h
video: fbdev: pxafb: loosen the platform data bond
2015-12-15 15:41:24 +02:00
q40fb.c
video: fbdev: make fb_var_screeninfo const
2017-09-04 16:00:50 +02:00
s1d13xxxfb.c
video: fbdev: constify fb_fix_screeninfo and fb_var_screeninfo structures
2016-09-27 11:16:35 +03:00
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
dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
2016-03-09 14:57:51 +01:00
s3fb.c
video: fbdev: s3fb: constify pci_device_id.
2017-08-01 17:20:45 +02:00
sa1100fb.c
dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
2016-03-09 14:57:51 +01:00
sa1100fb.h
…
sbuslib.c
fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper().
2018-05-30 07:52:12 +02:00
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
…
sh_mobile_lcdcfb.c
video: fbdev: sh_mobile_lcdcfb: constify sh_mobile_lcdc_bl_ops.
2017-06-14 17:40:57 +02:00
sh_mobile_lcdcfb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sh_mobile_meram.c
…
simplefb.c
video: fbdev: simplefb: Separate clk / regulator get and enable steps
2017-01-11 17:09:50 +01:00
skeletonfb.c
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
2017-09-04 16:00:49 +02:00
sm501fb.c
video: fbdev: make fb_videomode const
2017-09-04 16:00:49 +02:00
sm712.h
…
sm712fb.c
video: fbdev: sm712fb.c: fixed constant-left comparison warning
2017-08-01 17:20:38 +02:00
smscufx.c
video: fbdev: smscufx: constify usb_device_id.
2017-08-21 16:49:57 +02:00
ssd1307fb.c
fbdev/ssd1307fb: fix optional VBAT support
2017-04-07 17:28:23 +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: handle NULL return value from ioremap_nocache
2017-01-30 17:39:49 +01:00
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: tdfx: constify pci_device_id.
2017-08-01 17:20:43 +02:00
tgafb.c
…
tmiofb.c
…
tridentfb.c
video: fbdev: tridentfb: constify pci_device_id.
2017-08-01 17:20:41 +02:00
udlfb.c
video: udlfb: Fix read EDID timeout
2017-12-20 10:10:23 +01:00
uvesafb.c
video: uvesafb: Fix integer overflow in allocation
2018-07-03 11:25:02 +02:00
valkyriefb.c
…
valkyriefb.h
…
vesafb.c
…
vfb.c
vfb: fix video mode and line_length being set when loaded
2018-04-12 12:32:15 +02:00
vga16fb.c
video: fbdev: constify fb_fix_screeninfo and fb_var_screeninfo structures
2016-09-27 11:16:35 +03:00
vt8500lcdfb.c
…
vt8500lcdfb.h
…
vt8623fb.c
video: fbdev: vt8623fb: constify vt8623_timing_regs
2017-08-18 19:56:40 +02:00
w100fb.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
w100fb.h
…
wm8505fb_regs.h
…
wm8505fb.c
video: fbdev: wm8505fb use permission-specific DEVICE_ATTR variants
2017-01-11 17:09:51 +01:00
wmt_ge_rops.c
…
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
Merge tag 'fbdev-v4.12' of git://github.com/bzolnier/linux
2017-05-11 11:12:26 -07:00
xilinxfb.c
video: fbdev: Fix multiple style issues in xilinxfb
2017-08-21 16:49:57 +02:00