Zheyu Ma 15cf0b8227 video: fbdev: i740fb: Error out if 'pixclock' equals zero ... The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of 'pixclock', it may cause divide error. Fix this by checking whether 'pixclock' is zero in the function i740fb_check_var(). The following log reveals it: divide error: 0000 [#1] PREEMPT SMP KASAN PTI RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:444 [inline] RIP: 0010:i740fb_set_par+0x272f/0x3bb0 drivers/video/fbdev/i740fb.c:739 Call Trace: fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1036 do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1112 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1191 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>		2022-04-11 08:23:50 +02:00
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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	video: fbdev: i740fb: Error out if 'pixclock' equals zero	2022-04-11 08:23:50 +02:00
logo
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