Roman Smirnov 3d4b909704 fbmon: prevent division by zero in fb_videomode_from_videomode() ...

[ Upstream commit c2d953276b8b27459baed1277a4fdd5dd9bd4126 ]

The expression htotal * vtotal can have a zero value on
overflow. It is necessary to prevent division by zero like in
fb_var_to_videomode().

Found by Linux Verification Center (linuxtesting.org) with Svace.

Signed-off-by: Roman Smirnov <r.smirnov@omp.ru>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-04-13 13:07:40 +02:00

..

bitblit.c

fbcon: Fix null-ptr-deref in soft_cursor

2023-05-27 19:18:59 +02:00

cfbcopyarea.c

fbdev: core: cfbcopyarea: fix sloppy typing

2023-10-16 23:22:53 +02:00

cfbfillrect.c

fbdev: move fbdev core files to separate directory

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

cfbimgblt.c

fbdev: Fix cfb_imageblit() for arbitrary image widths

2022-03-25 09:55:54 +10:00

fb_backlight.c

fbdev/core: Move framebuffer and backlight helpers into separate files

2023-06-27 09:58:51 +02:00

fb_chrdev.c

fbdev/core: Move file-I/O code into separate file

2023-06-27 09:58:51 +02:00

fb_cmdline.c

fbdev: Handle video= parameter in video/cmdline.c

2023-02-20 14:56:48 +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

fbdev: flush deferred IO before closing

2024-01-25 15:35:45 -08:00

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_info.c

fbdev: Document that framebuffer_alloc() returns zero'ed data

2023-07-24 16:50:39 +02:00

fb_internal.h

fbdev: Make support for userspace interfaces configurable

2023-06-27 09:58:51 +02:00

fb_io_fops.c

fbdev: Rename fb_mem*() helpers

2023-05-18 11:07:54 +02:00

fb_notify.c

video: fbdev: core: Fix kernel-doc warnings in fbmon + fb_notify

2020-12-08 18:31:56 +01:00

fb_procfs.c

fbdev/core: Move procfs code to separate file

2023-06-27 09:58:51 +02:00

fb_sys_fops.c

fbdev: Validate info->screen_{base, buffer} in fb_ops implementations

2023-05-08 15:28:34 +02:00

fbcmap.c

fbdev: zero-fill colormap in fbcmap.c

2021-04-10 11:12:08 +02:00

fbcon_ccw.c

fbcon: Add option to enable legacy hardware acceleration

2022-02-02 15:16:26 +01:00

fbcon_cw.c

fbcon: Add option to enable legacy hardware acceleration

2022-02-02 15:16:26 +01:00

fbcon_rotate.c

fbcon: Drop EXPORT_SYMBOL

2020-11-17 11:00:43 +01:00

fbcon_rotate.h

fbcon: Add option to enable legacy hardware acceleration

2022-02-02 15:16:26 +01:00

fbcon_ud.c

fbcon: Add option to enable legacy hardware acceleration

2022-02-02 15:16:26 +01:00

fbcon.c

fbcon: always restore the old font data in fbcon_do_set_font()

2024-03-06 14:48:38 +00:00

fbcon.h

fbcon: Replace FBCON_FLAGS_INIT with a boolean

2022-04-07 16:52:13 +02:00

fbcvt.c

video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name()

2022-01-30 21:19:22 +01:00

fbmem.c

fbdev/core: Rework fb init code

2023-06-27 09:58:51 +02:00

fbmon.c

fbmon: prevent division by zero in fb_videomode_from_videomode()

2024-04-13 13:07:40 +02:00

fbsysfs.c

fbdev/core: Use list_for_each_entry() helper

2023-08-31 22:54:34 +02:00

Kconfig

drm: fix up fbdev Kconfig defaults

2023-09-18 10:52:55 +02:00

Makefile

fbdev: Split frame buffer support in FB and FB_CORE symbols

2023-07-22 12:25:04 +02:00

modedb.c

fbdev/core: Use list_for_each_entry() helper

2023-08-31 22:54:34 +02:00

softcursor.c

fbcon: Drop EXPORT_SYMBOL

2020-11-17 11:00:43 +01:00

svgalib.c

drm/i915: Move abs_diff() to math.h

2023-08-18 10:18:59 -07:00

syscopyarea.c

fbdev: core: syscopyarea: fix sloppy typing

2023-10-16 23:22:53 +02:00

sysfillrect.c

fbdev: Improve performance of sys_fillrect()

2022-03-02 20:20:34 +01:00

sysimgblt.c

fbdev: fix potential OOB read in fast_imageblit()

2023-06-24 21:55:11 +02:00

tileblit.c

Revert "fbdev: Garbage collect fbdev scrolling acceleration, part 1 (from TODO list)"

2022-02-02 15:14:56 +01:00