CVE-2025-38634: debian linux Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: power: supply: cpcap-charger: Fix null check for power_supply_get_by_name In the cpcap_usb_detect() function, the power_supply_get_by_name() function may return `NULL` instead of an error pointer. To prevent potential null pointer dereferences, Added a null check.

Is your site exposed to CVE-2025-38634?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.14 — 5.15.190
linux	linux_kernel	5.16 — 6.1.148
linux	linux_kernel	6.2 — 6.6.102
linux	linux_kernel	6.7 — 6.12.42
linux	linux_kernel	6.13 — 6.15.10
linux	linux_kernel	6.16 — 6.16.1
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/27001e4f146624c4b3389b029bdc0f8049819560 https://git.kernel.org/stable/c/4ebbb9106aaa2fd58e0359bc3a2490953db2ef0c https://git.kernel.org/stable/c/8e9bdb563916287ba1b4258812434e0585ac6d00 https://git.kernel.org/stable/c/9784d832d7c103539cd9afb376534eaa35815d3d https://git.kernel.org/stable/c/a2436263144980cc99a9860c7b43335847afbe53 https://git.kernel.org/stable/c/d9fa3aae08f99493e67fb79413c0e95d30fca5e9 https://git.kernel.org/stable/c/f642500aa7ed93d2606e4f929244cce9c7467b3a

Other References

https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2025-38634? +

In the Linux kernel, the following vulnerability has been resolved: power: supply: cpcap-charger: Fix null check for power_supply_get_by_name In the cpcap_usb_detect() function, the power_supply_get_by_name() function may return `NULL` instead of an error pointer. To prevent potential null pointer dereferences, Added a null check. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38634? +

CVE-2025-38634 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-38634? +

CVE-2025-38634 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-38634? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-8479

IEC 60870-5-104 used in bidirectional mode in RTU500 is vulnerable for a NULL pointer dereferencing, if a specially crafted sequence …

CVE-2025-24031

PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. In versions 0.6.12 and prior, the …

CVE-2025-31115

XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder …

CVE-2025-0121

A null pointer dereference vulnerability in the Palo Alto Networks Cortex® XDR agent on Windows devices allows a low-privileged local …

CVE-2023-45925

GNU Midnight Commander 4.8.29-146-g299d9a2fb was discovered to contain a NULL pointer dereference via the function x_error_handler() at tty/x11conn.c. NOTE: this …

CVE-2025-6398

A null pointer dereference vulnerability exists in the IOMap64.sys driver of ASUS AI Suite 3. The vulnerability can be triggered …

CVE-2025-38634