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linux/drivers/video/fbdev
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Roman Smirnov 3d4b909704 fbmon: prevent division by zero in fb_videomode_from_videomode() 
[ Upstream commit c2d953276b ]

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>
History 2024-04-13 13:07:40 +02:00
..
aty fbdev: atyfb: only use ioremap_uc() on i386 and ia64 2023-09-23 20:50:29 +02:00
core fbmon: prevent division by zero in fb_videomode_from_videomode() 2024-04-13 13:07:40 +02:00
geode fbdev/geode/lxfb: Use fbdev I/O helpers 2023-08-04 15:54:35 +02:00
i810 fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
intelfb fbdev: Remove FBINFO_FLAG_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:39 +02:00
kyro Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
matrox fbdev: Remove FBINFO_FLAG_DEFAULT from kzalloc()'ed structs 2023-07-24 16:50:39 +02:00
mb862xx Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
mmp fbdev: mmp: Annotate struct mmphw_ctrl with __counted_by 2023-09-23 20:35:14 +02:00
nvidia fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
omap fbdev: omapfb: fix some error codes 2023-10-16 23:04:26 +02:00
omap2 Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
riva fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
savage fbdev: savage: Error out if pixclock equals zero 2024-03-01 13:34:48 +01:00
sis fbdev: sis: Error out if pixclock equals zero 2024-03-01 13:34:48 +01:00
vermilion fbdev: Remove FBINFO_DEFAULT from kzalloc()'ed structs 2023-07-24 16:50:38 +02:00
via fbdev: viafb: fix typo in hw_bitblt_1 and hw_bitblt_2 2024-04-13 13:07:39 +02:00
68328fb.c fbdev: Remove FBINFO_DEFAULT from static structs 2023-07-24 16:50:38 +02:00
acornfb.c fbdev/acornfb: Fix name of fb_ops initializer macro 2024-01-25 15:35:45 -08:00
acornfb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
amba-clcd.c fbdev: Remove FBINFO_FLAG_DEFAULT from kzalloc()'ed structs 2023-07-24 16:50:39 +02:00
amifb.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
arcfb.c fbdev: Remove FBINFO_FLAG_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:39 +02:00
arkfb.c fbdev: Add support for the nomodeset kernel parameter 2022-11-16 13:26:25 +01:00
asiliantfb.c fbdev/asiliantfb: Use fbdev I/O helpers 2023-08-04 15:54:34 +02:00
atafb.c fbdev/atafb: Remove flag FBINFO_FLAG_DEFAULT 2023-07-24 16:50:39 +02:00
atafb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atafb_iplan2p2.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_iplan2p4.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_iplan2p8.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_mfb.c fbdev: atafb: Remove obsolete module support 2019-04-01 17:46:55 +02:00
atafb_utils.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel_lcdfb.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
au1100fb.c fbdev: au1100fb: Convert to platform remove callback returning void 2023-05-30 18:33:25 +02:00
au1100fb.h video: fbdev: au1100fb: Spelling s/palette/palette/ 2022-02-16 10:54:42 +01:00
au1200fb.c fbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe 2023-07-20 07:52:54 +02:00
au1200fb.h fbdev: au1200fb: delete duplicate header contents 2018-01-04 16:53:49 +01:00
broadsheetfb.c fbdev: Align deferred I/O with naming of helpers 2023-07-31 20:07:24 +02:00
bt431.h video: fbdev: bt431: Correct cursor format control macro 2016-02-26 13:06:11 +02:00
bt455.h video: fbdev: pmag-ba-fb: Optimize Bt455 colormap addressing 2016-02-26 13:06:11 +02:00
bw2.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
c2p.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
c2p_core.h fbdev: c2p: Use BUILD_BUG() instead of custom solution 2020-03-09 11:12:19 +01:00
c2p_iplan2.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
c2p_planar.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
carminefb.c fbdev/carminefb: Use fbdev I/O helpers 2023-08-04 15:54:35 +02:00
carminefb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
carminefb_regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cg3.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
cg6.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
cg14.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
chipsfb.c fbdev/chipsfb: Use fbdev I/O helpers 2023-08-04 15:54:35 +02:00
cirrusfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
clps711x-fb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
cobalt_lcdfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
controlfb.c fbdev: Remove FBINFO_DEFAULT from kzalloc()'ed structs 2023-07-24 16:50:38 +02:00
controlfb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cyber2000fb.c fbdev: Remove FBINFO_DEFAULT from kzalloc()'ed structs 2023-07-24 16:50:38 +02:00
cyber2000fb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
da8xx-fb.c fbdev/da8xx-fb: Use fbdev I/O helpers 2023-08-04 15:54:35 +02:00
dnfb.c video: fbdev: Make *fb_setup() and *fb_init() static 2022-07-18 07:54:20 +02:00
edid.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
efifb.c fbdev/efifb: Use fbdev I/O helpers 2023-08-04 15:54:35 +02:00
ep93xx-fb.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
ffb.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
fm2fb.c fbdev/fm2fb: Use fbdev I/O helpers 2023-08-04 15:54:35 +02:00
fsl-diu-fb.c fbdev: fsl-diu-fb: mark wr_reg_wa() static 2023-11-20 11:59:38 +01:00
g364fb.c fbdev/g364fb: fix build failure with mips 2023-09-02 08:18:40 -07:00
gbefb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
goldfishfb.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
grvga.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
gxt4500.c fbdev/gxt4500: Use fbdev I/O helpers 2023-08-04 15:54:36 +02:00
hecubafb.c fbdev: Align deferred I/O with naming of helpers 2023-07-31 20:07:24 +02:00
hgafb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
hitfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
hpfb.c fbdev: Remove FBINFO_DEFAULT from static structs 2023-07-24 16:50:38 +02:00
hyperv_fb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
i740_reg.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
i740fb.c fbdev/i740fb: Use fbdev I/O helpers 2023-08-04 15:54:36 +02:00
imsttfb.c fbdev: imsttfb: fix a resource leak in probe 2023-11-20 11:59:38 +01:00
imxfb.c fbdev: imxfb: fix left margin setting 2024-01-25 15:35:40 -08:00
Kconfig fbdev/sh7760fb: Depend on FB=y 2023-09-21 10:33:49 +02:00
leo.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
macfb.c fbdev/macfb: Use fbdev I/O helpers 2023-08-04 15:54:36 +02:00
macmodes.c video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
macmodes.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
Makefile fbdev: mx3fb: Remove the driver 2023-08-31 22:58:25 +02:00
maxinefb.c fbdev/maxinefb: Use fbdev I/O helpers 2023-08-04 15:54:36 +02:00
metronomefb.c fbdev: Align deferred I/O with naming of helpers 2023-07-31 20:07:24 +02:00
n411.c Annotate hardware config module parameters in drivers/video/ 2017-04-20 12:02:32 +01:00
neofb.c fbdev: neofb: Shorten Neomagic product name in info struct 2023-09-01 00:29:33 +02:00
ocfb.c fbdev/ocfb: Use fbdev I/O helpers 2023-08-04 15:54:37 +02:00
offb.c fbdev/offb: Use fbdev I/O helpers 2023-08-04 15:54:37 +02:00
p9100.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
platinumfb.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
platinumfb.h video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
pm2fb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
pm3fb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
pmag-aa-fb.c fbdev/pmag-aa-fb: Use fbdev I/O helpers 2023-08-04 15:54:37 +02:00
pmag-ba-fb.c fbdev/pmag-ba-fb: Use fbdev I/O helpers 2023-08-04 15:54:37 +02:00
pmagb-b-fb.c fbdev/pmagb-b-fb: Use fbdev I/O helpers 2023-08-04 15:54:37 +02:00
ps3fb.c fbdev/ps3fb: Build without kernel device 2023-08-03 16:08:14 +02:00
pvr2fb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
pxa3xx-gcu.c fbdev: pxa3xx-gcu: Convert to platform remove callback returning void 2023-04-24 11:48:31 +02:00
pxa3xx-gcu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pxa3xx-regs.h ARM: pxa: move regs-lcd.h into driver 2022-04-19 16:29:03 +02:00
pxa168fb.c fbdev/pxa168fb: Use fbdev I/O helpers 2023-08-04 15:54:37 +02:00
pxa168fb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pxafb.c fbdev/pxafb: Use fbdev I/O helpers 2023-08-04 15:54:37 +02:00
pxafb.h video: pxafb: Remove cpufreq policy notifier 2019-08-26 10:02:02 +02:00
q40fb.c fbdev/q40fb: Use fbdev I/O helpers 2023-08-04 15:54:38 +02:00
s1d13xxxfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
s3c-fb.c fbdev/s3cfb: Use fbdev I/O helpers 2023-08-04 15:54:38 +02:00
s3fb.c fbdev: Add support for the nomodeset kernel parameter 2022-11-16 13:26:25 +01:00
sa1100fb.c fbdev: sa1100fb: mark sa1100fb_init() static 2023-10-16 23:04:27 +02:00
sa1100fb.h ARM/fbdev: sa11x0: Switch to use GPIO descriptors 2020-04-17 15:50:11 +02:00
sbuslib.c fbdev: Explicitly include correct DT includes 2023-07-20 07:56:30 +02:00
sbuslib.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sh7760fb.c fbdev/sh7760fb: Use fbdev I/O helpers 2023-08-04 15:54:38 +02:00
sh_mobile_lcdcfb.c fbdev: Remove FBINFO_FLAG_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:39 +02:00
sh_mobile_lcdcfb.h fbdev/sh_mobile: remove sh_mobile_lcdc_display_notify 2019-06-12 20:28:11 +02:00
simplefb.c fbdev/simplefb: Use fbdev I/O helpers 2023-08-04 15:54:38 +02:00
skeletonfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
sm501fb.c fbdev: Remove FBINFO_FLAG_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:39 +02:00
sm712.h fbdev: sm712fb: use 1024x768 by default on non-MIPS, fix garbled display 2019-04-01 17:46:59 +02:00
sm712fb.c fbdev: Remove FBINFO_FLAG_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:39 +02:00
smscufx.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
ssd1307fb.c fbdev: ssd1307fb: Use bool for ssd1307fb_deviceinfo flags 2023-09-01 00:29:34 +02:00
sstfb.c fbdev/sstfb: Use fbdev I/O helpers 2023-08-04 15:54:38 +02:00
stifb.c sticon/parisc: Fix STI console on 64-bit only machines 2023-06-30 17:14:14 +02:00
sunxvr500.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
sunxvr1000.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
sunxvr2500.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
tcx.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00
tdfxfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
tgafb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
tridentfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
udlfb.c fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:38 +02:00
uvesafb.c fbdev: uvesafb: Call cn_del_callback() at the end of uvesafb_exit() 2023-10-16 23:19:34 +02:00
valkyriefb.c fbdev/valkyriefb: Use fbdev I/O helpers 2023-08-04 15:54:38 +02:00
valkyriefb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
vesafb.c fbdev/vesafb: Use fbdev I/O helpers 2023-08-04 15:54:38 +02:00
vfb.c fbdev: Remove FBINFO_FLAG_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:39 +02:00
vga16fb.c fbdev: Remove FBINFO_FLAG_DEFAULT from framebuffer_alloc()'ed structs 2023-07-24 16:50:39 +02:00
vt8500lcdfb.c fbdev: Remove FBINFO_DEFAULT from kzalloc()'ed structs 2023-07-24 16:50:38 +02:00
vt8500lcdfb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
vt8623fb.c fbdev: Add support for the nomodeset kernel parameter 2022-11-16 13:26:25 +01:00
wm8505fb.c fbdev: Remove FBINFO_DEFAULT from devm_kzalloc()'ed structs 2023-07-24 16:50:38 +02:00
wm8505fb_regs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
wmt_ge_rops.c fbdev: Include <linux/io.h> in various drivers 2023-05-18 11:06:19 +02:00
wmt_ge_rops.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-fbfront.c fbdev: Align deferred I/O with naming of helpers 2023-07-31 20:07:24 +02:00
xilinxfb.c Linux 6.5-rc7 2023-08-24 07:26:06 +10:00