linux/drivers/video
Helge Deller cad564ca55 fbcon: Fix boundary checks for fbcon=vc:n1-n2 parameters
The user may use the fbcon=vc:<n1>-<n2> option to tell fbcon to take
over the given range (n1...n2) of consoles. The value for n1 and n2
needs to be a positive number and up to (MAX_NR_CONSOLES - 1).
The given values were not fully checked against those boundaries yet.

To fix the issue, convert first_fb_vc and last_fb_vc to unsigned
integers and check them against the upper boundary, and make sure that
first_fb_vc is smaller than last_fb_vc.

Cc: stable@vger.kernel.org # v4.19+
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YpkYRMojilrtZIgM@p100
2022-06-20 12:12:27 +02:00
..
backlight - New Device Support 2022-03-25 14:01:23 -07:00
console nds32: Remove the architecture 2022-03-07 13:54:59 +01:00
fbdev fbcon: Fix boundary checks for fbcon=vc:n1-n2 parameters 2022-06-20 12:12:27 +02:00
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display_timing.c
hdmi.c
Kconfig
Makefile
of_display_timing.c video: fbdev: of: display_timing: Remove a redundant zeroing of memory 2022-04-04 08:55:23 +02:00
of_videomode.c
vgastate.c
videomode.c