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4.19.x+fslc
linux-brain/drivers/video
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Dan Carpenter 7b24ff9e00 fbdev: potential information leak in do_fb_ioctl() 
commit d3d19d6fc5736a798b118971935ce274f7deaa82 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>
2020-04-23 10:30:22 +02:00
..
backlight backlight: pwm_bl: Fix heuristic to determine number of brightness levels 2020-01-27 14:50:58 +01:00
console vgacon: Fix a UAF in vgacon_invert_region 2020-03-11 14:15:00 +01:00
fbdev fbdev: potential information leak in do_fb_ioctl() 2020-04-23 10:30:22 +02:00
logo video/logo: remove obsolete logo files 2018-03-26 15:56:42 +02:00
display_timing.c
hdmi.c video/hdmi: Fix AVI bar unpack 2019-12-17 20:35:17 +01:00
Kconfig fbdev changes for v4.17: 2018-04-10 10:20:00 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
of_display_timing.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
of_videomode.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
vgastate.c
videomode.c