void drm_crtc_convert_umode(struct drm_display_mode *out,
			    struct drm_mode_modeinfo *in)
{
	out->clock = in->clock;
	out->hdisplay = in->hdisplay;
	out->hsync_start = in->hsync_start;
	out->hsync_end = in->hsync_end;
	out->htotal = in->htotal;
	out->hskew = in->hskew;
	out->vdisplay = in->vdisplay;
	out->vsync_start = in->vsync_start;
	out->vsync_end = in->vsync_end;
	out->vtotal = in->vtotal;
	out->vscan = in->vscan;
	out->vrefresh = in->vrefresh;
	out->flags = in->flags;
	out->type = in->type;
	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.