Re: [PATCH] fbdev: smscufx: properly copy ioctl memory to kernelspace

[Helge Deller]

On 12/28/25 14:17, Greg Kroah-Hartman wrote:
> The UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from
> userspace to kernelspace, and instead directly references the memory,
> which can cause problems if invalid data is passed from userspace.  Fix
> this all up by correctly copying the memory before accessing it within
> the kernel.
>
> Reported-by: Tianchu Chen <flynnnchen@xxxxxxxxxxx>
> Cc: stable <stable@xxxxxxxxxx>
> Cc: Steve Glendinning <steve.glendinning@xxxxxxxxxxx>
> Cc: Helge Deller <deller@xxxxxx>
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> ---
>   drivers/video/fbdev/smscufx.c | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)

applied to fbdev git tree.

Thanks!
Helge