5.5
MEDIUM
CVE-2025-21940
AMD KFD Linux Kernel NULL Pointer Dereference Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue Through KFD IOCTL Fuzzing we encountered a NULL pointer derefrence when calling kfd_queue_acquire_buffers. (cherry picked from commit 049e5bf3c8406f87c3d8e1958e0a16804fa1d530)

INFO

Published Date :

April 1, 2025, 4:15 p.m.

Last Modified :

April 10, 2025, 6:06 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2025-21940 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
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-2025-21940.

URL Resource
https://git.kernel.org/stable/c/33eb8041c5d6c19d46e7bfd23a031844336afd80 Patch
https://git.kernel.org/stable/c/c3cbeafb4e0001d9146df50b470885e02664f3c7 Patch
https://git.kernel.org/stable/c/fd617ea3b79d2116d53f76cdb5a3601c0ba6e42f Patch

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-2025-21940 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-21940 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.

  • Initial Analysis by [email protected]

    Apr. 10, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.13.7 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.12 up to (excluding) 6.12.19
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/33eb8041c5d6c19d46e7bfd23a031844336afd80 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/c3cbeafb4e0001d9146df50b470885e02664f3c7 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/fd617ea3b79d2116d53f76cdb5a3601c0ba6e42f Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 01, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue Through KFD IOCTL Fuzzing we encountered a NULL pointer derefrence when calling kfd_queue_acquire_buffers. (cherry picked from commit 049e5bf3c8406f87c3d8e1958e0a16804fa1d530)
    Added Reference https://git.kernel.org/stable/c/33eb8041c5d6c19d46e7bfd23a031844336afd80
    Added Reference https://git.kernel.org/stable/c/c3cbeafb4e0001d9146df50b470885e02664f3c7
    Added Reference https://git.kernel.org/stable/c/fd617ea3b79d2116d53f76cdb5a3601c0ba6e42f
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-21940 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-2025-21940 weaknesses.

CVSS31 - Vulnerability Scoring System
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Latest DB Update: Jun. 08, 2025 18:45