Re: [PATCH] fbdev: pm3fb: Fix potential divide by zero

On 6/7/25 21:49, Alex Guo wrote:

variable var->pixclock can be set by user. In case it equals to
  zero, divide by zero would occur in pm3fb_check_var. Similar
crashes have happened in other fbdev drivers. There is no check
and modification on var->pixclock along the call chain to
pm3fb_check_var. So we fix this by checking whether 'pixclock'
is zero.

Similar commit: commit 16844e58704 ("video: fbdev: tridentfb:
Error out if 'pixclock' equals zero")

Signed-off-by: Alex Guo <redacted>
---
  drivers/video/fbdev/pm3fb.c | 3 +++
  1 file changed, 3 insertions(+)

applied.

Thanks!
Helge