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linux/drivers/video
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Helge Deller 7df8ee51d3 Revert "vgacon: Add check for vc_origin address range in vgacon_scroll()" 
commit e4fc307d8e upstream.

This reverts commit 864f9963ec.

The patch is wrong as it checks vc_origin against vc_screenbuf,
while in text mode it should compare against vga_vram_base.

As such it broke VGA text scrolling, which can be reproduced like this:
(1) boot a kernel that is configured to use text mode VGA-console
(2) type commands:  ls -l /usr/bin | less -S
(3) scroll up/down with cursor-down/up keys

Reported-by: Jari Ruusu <jariruusu@protonmail.com>
Cc: stable@vger.kernel.org
Cc: Yi Yang <yiyang13@huawei.com>
Cc: GONG Ruiqi <gongruiqi1@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-08-28 16:26:05 +02:00
..
backlight backlight: pm8941: Add NULL check in wled_configure() 2025-06-27 11:07:14 +01:00
console Revert "vgacon: Add check for vc_origin address range in vgacon_scroll()" 2025-08-28 16:26:05 +02:00
fbdev fbdev: Fix vmalloc out-of-bounds write in fast_imageblit 2025-08-28 16:26:04 +02:00
logo .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
aperture.c video/aperture: Move vga handling to pci function 2023-08-30 16:10:58 +02:00
display_timing.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
hdmi.c video/hdmi: Add audio_infoframe packing for DP 2022-09-04 15:31:59 +03:00
Kconfig drm: Implement DRM aperture helpers under video/ 2022-06-27 11:07:55 +02:00
Makefile drm: Implement DRM aperture helpers under video/ 2022-06-27 11:07:55 +02:00
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 video: Fix kernel-doc warnings in of_display_timing + of_videomode 2020-11-29 22:42:17 +01:00
vgastate.c Video: vgastate: fixed a spacing coding style 2018-10-08 12:57:35 +02:00
videomode.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00