CVE-2023-53258

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix possible underflow for displays with large vblank [Why] Underflow observed when using a display with a large vblank region and low refresh rate [How] Simplify calculation of vblank_nom Increase value for VBlankNomDefaultUS to 800us

• https://git.kernel.org/stable/c/1a4bcdbea4319efeb26cc4b05be859a7867e02dc
  Patch
• https://git.kernel.org/stable/c/64bc8e10c87adf60b2d32aacf3afb288e51d5a62
  Patch
• https://git.kernel.org/stable/c/d5741133e6e2f304b40ca1da0e16f62af06f4d22
  Patch