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CVE-2025-68238
mtd: rawnand: cadence: fix DMA device NULL pointer dereference
Description

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: cadence: fix DMA device NULL pointer dereference The DMA device pointer `dma_dev` was being dereferenced before ensuring that `cdns_ctrl->dmac` is properly initialized. Move the assignment of `dma_dev` after successfully acquiring the DMA channel to ensure the pointer is valid before use.

INFO

Published Date :

Dec. 16, 2025, 2:15 p.m.

Last Modified :

Dec. 16, 2025, 2:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-68238 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Resolve DMA device NULL pointer dereference by initializing DMA device pointer correctly.
  • Ensure DMA device pointer is initialized before dereferencing.
  • Move DMA device assignment after successful DMA channel acquisition.
  • Apply the provided kernel patch for the fix.
  • Update the Linux kernel to the fixed version.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-68238.

URL Resource
https://git.kernel.org/stable/c/0c2a43cb43786011b48eeab6093db14888258c6b
https://git.kernel.org/stable/c/0c635241a62f2f5da1b48bfffae226d1f86a76ef
https://git.kernel.org/stable/c/2178b0255eae108bb10e5e99658b28641bc06f43
https://git.kernel.org/stable/c/5c56bf214af85ca042bf97f8584aab2151035840
https://git.kernel.org/stable/c/9c58c64ec41290c12490ca7e1df45013fbbb41fd
https://git.kernel.org/stable/c/b146e0b085d9d6bfe838e0a15481cba7d093c67f
https://git.kernel.org/stable/c/e282a4fdf3c6ee842a720010a8b5f7d77bedd126
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-68238 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-68238 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-68238 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-68238 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 16, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: cadence: fix DMA device NULL pointer dereference The DMA device pointer `dma_dev` was being dereferenced before ensuring that `cdns_ctrl->dmac` is properly initialized. Move the assignment of `dma_dev` after successfully acquiring the DMA channel to ensure the pointer is valid before use.
    Added Reference https://git.kernel.org/stable/c/0c2a43cb43786011b48eeab6093db14888258c6b
    Added Reference https://git.kernel.org/stable/c/0c635241a62f2f5da1b48bfffae226d1f86a76ef
    Added Reference https://git.kernel.org/stable/c/2178b0255eae108bb10e5e99658b28641bc06f43
    Added Reference https://git.kernel.org/stable/c/5c56bf214af85ca042bf97f8584aab2151035840
    Added Reference https://git.kernel.org/stable/c/9c58c64ec41290c12490ca7e1df45013fbbb41fd
    Added Reference https://git.kernel.org/stable/c/b146e0b085d9d6bfe838e0a15481cba7d093c67f
    Added Reference https://git.kernel.org/stable/c/e282a4fdf3c6ee842a720010a8b5f7d77bedd126
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.