CVE-2025-38630
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-22

Last updated on: 2025-11-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref fb_add_videomode() can fail with -ENOMEM when its internal kmalloc() cannot allocate a struct fb_modelist. If that happens, the modelist stays empty but the driver continues to register. Add a check for its return value to prevent poteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 ("fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var").
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Meta Information
Published
2025-08-22
Last Modified
2025-11-03
Generated
2026-06-16
AI Q&A
2025-08-22
EPSS Evaluated
2026-06-15
NVD
CVE-2025-38630
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel 6.1.153
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability occurs in the Linux kernel's framebuffer driver (imxfb). The function fb_add_videomode can fail to allocate memory for a structure (fb_modelist) due to kmalloc() returning -ENOMEM. When this failure happens, the modelist remains empty but the driver continues to register, which can lead to a null pointer dereference. The fix involves adding a check for the return value of fb_add_videomode to prevent this null pointer dereference.

Impact Analysis

This vulnerability can cause a null pointer dereference in the Linux kernel framebuffer driver, potentially leading to system crashes or instability when the driver attempts to use an uninitialized or empty modelist. This could affect system reliability and availability.

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