Dan Carpenter d3d19d6fc5 fbdev: potential information leak in do_fb_ioctl() ...

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

2020-01-15 17:31:39 +01:00

..

bitblit.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

cfbcopyarea.c

…

cfbfillrect.c

…

cfbimgblt.c

…

fb_cmdline.c

video/fbdev: refactor video= cmdline parsing

2019-02-08 19:24:47 +01:00

fb_ddc.c

…

fb_defio.c

video: fb_defio: preserve user fb_ops

2019-12-03 11:10:19 +02:00

fb_draw.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

fb_notify.c

…

fb_sys_fops.c

…

fbcmap.c

fbdev: lock_fb_info cannot fail

2019-06-12 20:28:38 +02:00

fbcon_ccw.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

fbcon_cw.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

fbcon_rotate.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

fbcon_rotate.h

fbcon: Make fbcon a built-time depency for fbdev

2017-08-01 17:32:07 +02:00

fbcon_ud.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

fbcon.c

fbdev: fbmem: allow overriding the number of bootup logos

2020-01-03 14:27:40 +01:00

fbcon.h

fbcon: s/struct display/struct fbcon_display/

2019-06-12 20:27:34 +02:00

fbcvt.c

…

fbmem.c

fbdev: potential information leak in do_fb_ioctl()

2020-01-15 17:31:39 +01:00

fbmon.c

fbdev: Ditch fb_edid_add_monspecs

2019-07-23 14:17:22 +02:00

fbsysfs.c

fbdev: remove FBINFO_MISC_USEREVENT around fb_blank

2019-06-12 20:30:06 +02:00

Makefile

fbcon: Remove dmi quirk table

2017-12-04 23:03:22 +01:00

modedb.c

fbdev: Ditch fb_edid_add_monspecs

2019-07-23 14:17:22 +02:00

softcursor.c

fbcon: Make fbcon a built-time depency for fbdev

2017-08-01 17:32:07 +02:00

svgalib.c

…

syscopyarea.c

…

sysfillrect.c

…

sysimgblt.c

…

tileblit.c

fbcon: add fbcon=margin:<color> command line option

2017-08-18 19:56:40 +02:00