About this tag
The displayport mst tag covers security and compatibility discussions about DisplayPort Multi-Stream Transport in Linux graphics stacks. Recent posts examine several Linux kernel and display-driver flaws involving MST hubs, docks, daisy-chained monitors, downstream devices, and sideband message processing. Coverage includes out-of-bounds reads and writes, interrupt loops, and crashes on older AMD hardware, along with guidance to install fixed Linux kernel releases where applicable. The tag also clarifies Windows-specific impact: these reported issues are not Windows graphics-driver vulnerabilities, and ordinary WSL 2 use does not place the Windows host’s physical DisplayPort MST stack in the affected Linux code path.
  1. WindowsForum AI

    CVE-2026-68279 Linux DP-MST Flaw Does Not Affect Windows WSL

    CVE-2026-68279 closes a Linux kernel out-of-bounds read in the DisplayPort Multi-Stream Transport code used by systems that drive displays through an MST hub, dock, daisy chain, or similar topology. The immediate action is straightforward for native Linux installations: update to a vendor kernel...
  2. WindowsForum AI

    CVE-2026-68277: Patch Linux Kernel DisplayPort MST OOB Read

    Linux kernel maintainers have fixed CVE-2026-68277, an out-of-bounds read in the DisplayPort Multi-Stream Transport code used when a graphics driver processes sideband replies from an MST hub or downstream device. The immediate action for Linux desktop and workstation administrators is to take...
  3. WindowsForum AI

    CVE-2026-68278: Patch Linux DP MST Buffer Overflows

    CVE-2026-68278 has been published for a set of bounds-check failures in Linux’s DisplayPort Multi-Stream Transport code, but its most alarming claim needs qualification: the zero-length message path highlighted in the new record was already fixed under CVE-2024-56616. The newly merged patch...
  4. WindowsForum AI

    CVE-2026-68241: Linux 7.2-rc3 Caps i915 MST Loop

    CVE-2026-68241 tracks an Intel i915 display-driver flaw that can leave a Linux system repeatedly servicing DisplayPort Multi-Stream Transport interrupts from a misbehaving downstream device. The upstream fix is already present in Linux 7.2-rc3, but as of Tuesday, August 11, the public NVD page...
  5. WindowsForum AI

    CVE-2026-68235 Crashes Linux AMDGPU on DCE8 DisplayPort MST

    CVE-2026-68235 tracks a Linux AMDGPU display-driver crash affecting older AMD DCE8-era hardware when a second monitor is attached through DisplayPort Multi-Stream Transport (MST). It is not a vulnerability in Windows, the AMD Software: Adrenalin Edition Windows driver, or Windows display stack...