CVE-2025-21814
Linux PTP NULL Pointer Dereference Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: ptp: Ensure info->enable callback is always set The ioctl and sysfs handlers unconditionally call the ->enable callback. Not all drivers implement that callback, leading to NULL dereferences. Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c. Instead use a dummy callback if no better was specified by the driver.
INFO
Published Date :
Feb. 27, 2025, 8:16 p.m.
Last Modified :
March 13, 2025, 1:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to the latest version.
- Ensure all drivers implement the enable callback.
- Use a dummy callback if no enable callback is specified.
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-2025-21814.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-21814 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-2025-21814
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-2025-21814 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-21814 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.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 13, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/1334c64a5d1de6666e0c9f984db6745083df1eb4 Added Reference https://git.kernel.org/stable/c/9df3a9284f39bfd51a9f72a6a165c79e2aa5066b Added Reference https://git.kernel.org/stable/c/fdc1e72487781dd7705bcbe30878bee7d5d1f3e8 -
Initial Analysis by [email protected]
Mar. 05, 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:*:*:*:*:*:*:*:* versions from (including) 6.13 from (excluding) 6.13.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.78 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.12.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.0 from (excluding) 6.1.129 Added Reference Type kernel.org: https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fd53aa40e65f518453115b6f56183b0c201db26b Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 27, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ptp: Ensure info->enable callback is always set The ioctl and sysfs handlers unconditionally call the ->enable callback. Not all drivers implement that callback, leading to NULL dereferences. Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c. Instead use a dummy callback if no better was specified by the driver. Added Reference https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00 Added Reference https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3 Added Reference https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339 Added Reference https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002 Added Reference https://git.kernel.org/stable/c/fd53aa40e65f518453115b6f56183b0c201db26b