Peilin Ye 43198a5b1c fbcon: Fix global-out-of-bounds read in fbcon_get_font() ... commit 5af0864079 upstream. fbcon_get_font() is reading out-of-bounds. A malicious user may resize `vc->vc_font.height` to a large value, causing fbcon_get_font() to read out of `fontdata`. fbcon_get_font() handles both built-in and user-provided fonts. Fortunately, recently we have added FONT_EXTRA_WORDS support for built-in fonts, so fix it by adding range checks using FNTSIZE(). This patch depends on patch "fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h", and patch "Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts". Cc: stable@vger.kernel.org Reported-and-tested-by: syzbot+29d4ed7f3bdedf2aa2fd@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?id=08b8be45afea11888776f897895aef9ad1c3ecfd Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/b34544687a1a09d6de630659eb7a773f4953238b.1600953813.git.yepeilin.cs@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-10-14 10:31:21 +02:00
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backlight	backlight: lp855x: Ensure regulators are disabled on probe failure	2020-06-25 15:32:48 +02:00
console	fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h	2020-10-14 10:31:21 +02:00
fbdev	fbcon: Fix global-out-of-bounds read in fbcon_get_font()	2020-10-14 10:31:21 +02:00
logo
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
of_display_timing.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
of_videomode.c
vgastate.c
videomode.c