CVE-2025-38143
backlight: pm8941: Add NULL check in wled_configure()
Description
In the Linux kernel, the following vulnerability has been resolved: backlight: pm8941: Add NULL check in wled_configure() devm_kasprintf() returns NULL when memory allocation fails. Currently, wled_configure() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue.
INFO
Published Date :
July 3, 2025, 9:15 a.m.
Last Modified :
Dec. 18, 2025, 9:24 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
- Add NULL check after devm_kasprintf in wled_configure.
- Apply the kernel patch addressing the null pointer dereference.
- Update the Linux kernel to the latest secure 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-2025-38143.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-38143 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-2025-38143
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-2025-38143 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-38143 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]
Dec. 18, 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) 5.11 up to (excluding) 5.15.186 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.142 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.15.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.34 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.0 up to (excluding) 5.10.239 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Added Reference Type kernel.org: https://git.kernel.org/stable/c/1be2000b703b02e149f8f2061054489f6c18c972 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/21528806560510458378ea52c37e35b0773afaea Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4a715be3fe80b68fa55cb3569af3d294be101626 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6a56446595730a5e3f06a30902e23cb037d28146 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9d06ac32c202142da40904180f2669ed4f5073ac Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e12d3e1624a02706cdd3628bbf5668827214fa33 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fde314445332015273c8f51d2659885c606fe135 Types: Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Types: Third Party Advisory Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Types: Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Added Reference https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 03, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: backlight: pm8941: Add NULL check in wled_configure() devm_kasprintf() returns NULL when memory allocation fails. Currently, wled_configure() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue. Added Reference https://git.kernel.org/stable/c/1be2000b703b02e149f8f2061054489f6c18c972 Added Reference https://git.kernel.org/stable/c/21528806560510458378ea52c37e35b0773afaea Added Reference https://git.kernel.org/stable/c/4a715be3fe80b68fa55cb3569af3d294be101626 Added Reference https://git.kernel.org/stable/c/6a56446595730a5e3f06a30902e23cb037d28146 Added Reference https://git.kernel.org/stable/c/9d06ac32c202142da40904180f2669ed4f5073ac Added Reference https://git.kernel.org/stable/c/e12d3e1624a02706cdd3628bbf5668827214fa33 Added Reference https://git.kernel.org/stable/c/fde314445332015273c8f51d2659885c606fe135