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Dan Carpenter 14d59995ff fbdev: potential information leak in do_fb_ioctl() 
commit d3d19d6fc5 upstream.

The "fix" struct has a 2 byte hole after ->ywrapstep and the
"fix = info->fix;" assignment doesn't necessarily clear it.  It depends
on the compiler.  The solution is just to replace the assignment with an
memcpy().

Fixes: 1f5e31d7e5 ("fbmem: don't call copy_from/to_user() with mutex held")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Andrea Righi <righi.andrea@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Peter Rosin <peda@axentia.se>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200113100132.ixpaymordi24n3av@kili.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-24 07:59:14 +02:00
..
aty
mach64: fix image corruption due to reading accelerator registers
2018-11-21 09:26:00 +01:00
core
fbdev: potential information leak in do_fb_ioctl()
2020-04-24 07:59:14 +02:00
geode
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i810
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intelfb
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kyro
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matrox
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mb862xx
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mbx
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mmp
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nvidia
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omap
fbdev: omapfb: off by one in omapfb_register_client()
2018-09-26 08:36:32 +02:00
omap2
omap2fb: Fix stack memory disclosure
2019-01-23 08:10:55 +01:00
riva
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savage
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sis
video: fbdev: sis: Remove unnecessary parentheses and commented code
2020-04-24 07:59:07 +02:00
vermilion
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via
fbdev/via: fix defined but not used warning
2018-09-26 08:36:32 +02:00
68328fb.c
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acornfb.c
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acornfb.h
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amba-clcd-nomadik.c
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amba-clcd-nomadik.h
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amba-clcd-versatile.c
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amba-clcd-versatile.h
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amba-clcd.c
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amifb.c
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arcfb.c
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arkfb.c
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asiliantfb.c
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atafb_iplan2p2.c
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atafb_iplan2p4.c
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atafb_iplan2p8.c
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atafb_mfb.c
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atafb_utils.h
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atafb.c
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atafb.h
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atmel_lcdfb.c
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au1100fb.c
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au1100fb.h
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au1200fb.c
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au1200fb.h
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auo_k190x.c
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auo_k190x.h
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auo_k1900fb.c
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auo_k1901fb.c
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bf54x-lq043fb.c
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bf537-lq035.c
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bfin_adv7393fb.c
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bfin_adv7393fb.h
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bfin-lq035q1-fb.c
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bfin-t350mcqb-fb.c
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broadsheetfb.c
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bt431.h
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bt455.h
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bw2.c
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c2p_core.h
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c2p_iplan2.c
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c2p_planar.c
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c2p.h
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carminefb_regs.h
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carminefb.c
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carminefb.h
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cg3.c
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cg6.c
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cg14.c
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chipsfb.c
fbdev: chipsfb: remove set but not used variable 'size'
2020-01-29 10:24:15 +01:00
cirrusfb.c
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clps711x-fb.c
video: clps711x-fb: release disp device node in probe()
2019-02-12 19:44:56 +01:00
clps711xfb.c
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cobalt_lcdfb.c
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controlfb.c
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controlfb.h
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cyber2000fb.c
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cyber2000fb.h
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da8xx-fb.c
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dnfb.c
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edid.h
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efifb.c
efi/fb: Correct PCI_STD_RESOURCE_END usage
2018-11-10 07:42:45 -08:00
ep93xx-fb.c
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fb-puv3.c
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ffb.c
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fm2fb.c
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fsl-diu-fb.c
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g364fb.c
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gbefb.c
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goldfishfb.c
video: fbdev: Set pixclock = 0 in goldfishfb
2019-04-03 06:24:14 +02:00
grvga.c
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gxt4500.c
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hecubafb.c
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hgafb.c
video: hgafb: fix potential NULL pointer dereference
2019-06-22 08:17:17 +02:00
hitfb.c
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hpfb.c
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hyperv_fb.c
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i740_reg.h
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i740fb.c
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igafb.c
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imsttfb.c
video: imsttfb: fix potential NULL pointer dereferences
2019-06-22 08:17:17 +02:00
imxfb.c
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jz4740_fb.c
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Kconfig
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leo.c
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macfb.c
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macmodes.c
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macmodes.h
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Makefile
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maxinefb.c
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metronomefb.c
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mx3fb.c
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mxsfb.c
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n411.c
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neofb.c
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nuc900fb.c
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nuc900fb.h
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ocfb.c
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offb.c
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p9100.c
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platinumfb.c
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platinumfb.h
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pm2fb.c
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pm3fb.c
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pmag-aa-fb.c
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pmag-ba-fb.c
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pmagb-b-fb.c
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ps3fb.c
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pvr2fb.c
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pxa3xx-gcu.c
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pxa3xx-gcu.h
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pxa168fb.c
pxa168fb: Fix the function used to release some memory in an error handling path
2020-02-28 15:42:17 +01:00
pxa168fb.h
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pxafb.c
video: fbdev: pxafb: clear allocated memory for video modes
2018-09-26 08:36:32 +02:00
pxafb.h
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q40fb.c
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s1d13xxxfb.c
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s3c2410fb.c
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s3c2410fb.h
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s3c-fb.c
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s3fb.c
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sa1100fb.c
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sa1100fb.h
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sbuslib.c
fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper()
2019-11-25 09:53:41 +01:00
sbuslib.h
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sh7760fb.c
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sh_mobile_lcdcfb.c
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sh_mobile_lcdcfb.h
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sh_mobile_meram.c
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simplefb.c
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skeletonfb.c
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sm501fb.c
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sm712.h
fbdev: sm712fb: use 1024x768 by default on non-MIPS, fix garbled display
2019-05-25 18:26:52 +02:00
sm712fb.c
fbdev: sm712fb: fix memory frequency by avoiding a switch/case fallthrough
2019-05-25 18:26:58 +02:00
smscufx.c
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ssd1307fb.c
video: ssd1307fb: Start page range at page_offset
2019-10-07 18:53:09 +02:00
sstfb.c
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sticore.h
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stifb.c
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sunxvr500.c
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sunxvr1000.c
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sunxvr2500.c
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tcx.c
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tdfxfb.c
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tgafb.c
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tmiofb.c
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tridentfb.c
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udlfb.c
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uvesafb.c
video: uvesafb: Fix integer overflow in allocation
2018-07-03 11:23:16 +02:00
valkyriefb.c
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valkyriefb.h
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vesafb.c
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vfb.c
vfb: fix video mode and line_length being set when loaded
2018-04-13 19:48:10 +02:00
vga16fb.c
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vt8500lcdfb.c
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vt8500lcdfb.h
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vt8623fb.c
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w100fb.c
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w100fb.h
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wm8505fb_regs.h
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wm8505fb.c
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wmt_ge_rops.c
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wmt_ge_rops.h
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xen-fbfront.c
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xilinxfb.c
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