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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Affected Version(s)
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 908c5bb64f9c4319902b8ca1aa3fef8f83302520
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0909b2b49c4546a7a08c80f53d93736b63270827
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3f2098f4fba7718eb2501207ca6e99d22427f25a