CVE-2025-38143: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2025-38143 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 53 · Related 48Timeline
- 03-07-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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.
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
0.20%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
+0.02 pp
From 0.18% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu141 products
- linuxAll versions (No fix recorded) | < 5.15.0-156.166 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 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≥ f86b77583d88c8402e8d89a339d96f847318f8a8, < 6a56446595730a5e3f06a30902e23cb037d28146 | ≥ f86b77583d88c8402e8d89a339d96f847318f8a8, < 9d06ac32c202142da40904180f2669ed4f5073ac | ≥ f86b77583d88c8402e8d89a339d96f847318f8a8, < 21528806560510458378ea52c37e35b0773afaea | ≥ f86b77583d88c8402e8d89a339d96f847318f8a8, < fde314445332015273c8f51d2659885c606fe135 | ≥ f86b77583d88c8402e8d89a339d96f847318f8a8, < 1be2000b703b02e149f8f2061054489f6c18c972 | ≥ f86b77583d88c8402e8d89a339d96f847318f8a8, < 4a715be3fe80b68fa55cb3569af3d294be101626 | ≥ f86b77583d88c8402e8d89a339d96f847318f8a8, < e12d3e1624a02706cdd3628bbf5668827214fa33 | 5.0
- linux_kernel≥ 5.0, < 5.10.239 | ≥ 5.11, < 5.15.186 | ≥ 5.16, < 6.1.142 | ≥ 6.2, < 6.6.94 | ≥ 6.7, < 6.12.34 | ≥ 6.13, < 6.15.3
3 vendors · 145 products
References
46 links- lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory