Roman Smirnov ebe31b54cb 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>
(cherry picked from commit 1fb52bc1de55e9e0bdf71fe078efd4da0889710f)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>

2024-05-30 09:00:45 +00:00

..

backlight

backlight: lp8788: Fully initialize backlight_properties during probe

2024-04-16 10:30:34 +00:00

console

vgacon: Propagate console boot parameters before calling `vc_resize'

2021-12-08 08:46:56 +01:00

fbdev

fbmon: prevent division by zero in fb_videomode_from_videomode()

2024-05-30 09:00:45 +00:00

logo

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display_timing.c

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hdmi.c

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Kconfig

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Makefile

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of_display_timing.c

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of_videomode.c

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vgastate.c

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videomode.c

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