tree 167655d2805c0634b5e8b376f9d00df469a82cbc
parent 7eb9eb82fc0287810ea23f5f84c40e7e4701b11f
author Du Cheng <ducheng2@gmail.com> 1615536861 +0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1617792531 +0200

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

commit 01faae5193d6190b7b3aa93dae43f514e866d652 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>