Kernel Vulnerability in Linux Impacting Framebuffer Resources

CVE-2025-38427

What is CVE-2025-38427?

A vulnerability in the Linux kernel affects the handling of framebuffer memory resources. Specifically, the framebuffer addresses referenced in screen_info may not align with the actual memory offsets allocated during the system's boot process. Due to potential changes made by firmware assigning different offsets to PCI host bridges, there can be an invalid access to I/O memory. The proper functioning of graphical devices relies on accurate framebuffer resource mapping, thus necessitating important updates to the screen_info component. The resolution ensures that the framebuffer location accommodates any shifts in memory allocation made at boot, ultimately improving system stability and security.

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