Du Cheng 61f0c3e809 drivers: video: fbcon: fix NULL dereference in fbcon_cursor() ...

commit 01faae5193 upstream.

add null-check on function pointer before dereference on ops->cursor

Reported-by: syzbot+b67aaae8d3a927f68d20@syzkaller.appspotmail.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Du Cheng <ducheng2@gmail.com>
Link: https://lore.kernel.org/r/20210312081421.452405-1-ducheng2@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-04-07 15:00:13 +02:00

..

bitblit.c

fbcon: remove now unusued 'softback_lines' cursor() argument

2020-09-14 10:06:15 -07:00

cfbcopyarea.c

framebuffer: fix screen corruption when copying

2014-09-30 13:39:50 +03:00

cfbfillrect.c

fbdev: move fbdev core files to separate directory

2014-04-17 08:10:19 +03:00

cfbimgblt.c

fbdev: move fbdev core files to separate directory

2014-04-17 08:10:19 +03:00

fb_cmdline.c

video/fbdev: refactor video= cmdline parsing

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

fb_ddc.c

fb_ddc: Allow I2C adapters without SCL read capability

2015-09-30 10:46:55 +03:00

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

fbdev: move fbdev core files to separate directory

2014-04-17 08:10:19 +03:00

fb_sys_fops.c

fbdev: move fbdev core files to separate directory

2014-04-17 08:10:19 +03:00

fbcmap.c

fbdev: lock_fb_info cannot fail

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

fbcon_ccw.c

fbcon: remove now unusued 'softback_lines' cursor() argument

2020-09-14 10:06:15 -07:00

fbcon_cw.c

fbcon: remove now unusued 'softback_lines' cursor() argument

2020-09-14 10:06:15 -07:00

fbcon_rotate.c

fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h

2020-09-25 10:28:18 +02:00

fbcon_rotate.h

fbcon: Make fbcon a built-time depency for fbdev

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

fbcon_ud.c

fbcon: remove now unusued 'softback_lines' cursor() argument

2020-09-14 10:06:15 -07:00

fbcon.c

drivers: video: fbcon: fix NULL dereference in fbcon_cursor()

2021-04-07 15:00:13 +02:00

fbcon.h

Merge tag 'drm-misc-fixes-2020-10-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2020-10-06 12:38:28 +10:00

fbcvt.c

fbdev: fix CVT vertical front and back porch values

2015-01-27 13:35:37 +02:00

fbmem.c

fbmem: add margin check to fb_check_caps()

2020-09-08 13:33:01 +02:00

fbmon.c

video: fbdev: Replace HTTP links with HTTPS ones

2020-07-20 11:47:29 +02:00

fbsysfs.c

fbmem: pull fbcon_update_vcs() out of fb_set_var()

2020-08-04 07:37:23 +02:00

Makefile

fbdev: remove object duplication in Makefile

2020-01-15 17:31:52 +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

fbdev: move fbdev core files to separate directory

2014-04-17 08:10:19 +03:00

syscopyarea.c

video: fbdev: fix sys_copyarea

2015-01-30 09:46:59 +02:00

sysfillrect.c

fbdev: move fbdev core files to separate directory

2014-04-17 08:10:19 +03:00

sysimgblt.c

fbdev: move fbdev core files to separate directory

2014-04-17 08:10:19 +03:00

tileblit.c

Merge tag 'drm-misc-fixes-2020-10-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2020-10-06 12:38:28 +10:00