CVE-2025-38142: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2025-38142 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 43 · Related 39Timeline
- 03-07-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (asus-ec-sensors) check sensor index in read_string() Prevent a potential invalid memory access when the requested sensor is not found. find_ec_sensor_index() may return a negative value (e.g. -ENOENT), but its result was used without checking, which could lead to undefined behavior when passed to get_sensor_info(). Add a proper check to return -EINVAL if sensor_index is negative. Found by Linux Verification Center (linuxtesting.org) with SVACE. [groeck: Return error code returned from find_ec_sensor_index]
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
8%
Versus all other CVEs
30-day change
+0.02 pp
From 0.17% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu119 products
- linux< 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.147-1 | < 6.12.35-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ d0ddfd241e5719d696bc0b081e260db69d368668, < 6bf529ce84dccc0074dbc704e70aee4aa545057e | ≥ d0ddfd241e5719d696bc0b081e260db69d368668, < 4e9e45746b861ebd54c03ef301da2cb8fc990536 | ≥ d0ddfd241e5719d696bc0b081e260db69d368668, < 19bd9cde38dd4ca1771aed7afba623e7f4247c8e | ≥ d0ddfd241e5719d696bc0b081e260db69d368668, < 7eeb3df6f07a886bdfd52757ede127a59a8784dc | ≥ d0ddfd241e5719d696bc0b081e260db69d368668, < 25be318324563c63cbd9cb53186203a08d2f83a1 | 5.18
- linux_kernel≥ 5.18, < 6.1.142 | ≥ 6.2, < 6.6.94 | ≥ 6.7, < 6.12.34 | ≥ 6.13, < 6.15.3
3 vendors · 123 products
References
34 links- lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory