Null Pointer Dereference in Linux Kernel's fbdev Leading to System Instability

CVE-2025-38215

What is CVE-2025-38215?

A vulnerability in the Linux kernel's framebuffer device (fbdev) module can lead to a null pointer dereference if memory allocation for fb_videomode fails during the framebuffer registration process. This error occurs when fb_add_videomode() fails to allocate necessary resources, causing subsequent code attempts to access uninitialized memory. The issue can result in a general protection fault, leading to system instability and potential crashes. Developers are advised to implement the latest fixes to prevent such vulnerabilities from being exploited.

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