Wiz
Vulnerability DatabaseCVE-2025-38341

CVE-2025-38341: 
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2025-38341 is a vulnerability discovered in the Linux kernel, specifically affecting the ethernet (eth) fbnic driver component. The vulnerability was disclosed on July 10, 2025, and involves a potential double-free condition when failing to DMA-map firmware messages (NVD).

Technical details

The vulnerability stems from an issue where the caller of fbnicmbxmap_msg() retains ownership of the message on error, while existing callers are programmed to free the page, potentially leading to a double-free condition. The vulnerability has been assigned a CVSS v3.1 base score of 6.0 (Medium severity) (Rapid7).

Impact

The vulnerability affects various Linux distributions and their kernel packages, particularly impacting systems running the fbnic driver. Several Ubuntu releases including 25.04 (plucky) and specific kernel versions for cloud platforms (AWS, Azure, GCP) were marked as vulnerable (Ubuntu).

Mitigation and workarounds

The vulnerability has been patched in various Linux distributions. Debian has marked it as fixed in version 6.12.35-1 and later releases. Ubuntu has released patches for affected versions, with many LTS releases being marked as 'Not affected' (Debian).

Additional resources

Source: This report was generated using AI

Related Linux Kernel vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-40344N/AN/A
  • Linux KernelLinux Kernel
  • kernel-rt-devel
NoYesDec 09, 2025
CVE-2025-40343N/AN/A
  • Linux KernelLinux Kernel
  • bpftool
NoYesDec 09, 2025
CVE-2025-40342N/AN/A
  • Linux KernelLinux Kernel
  • kernel-rt-trace
NoYesDec 09, 2025
CVE-2025-40341N/AN/A
  • Linux KernelLinux Kernel
  • kernel-headers
NoYesDec 09, 2025
CVE-2025-40340N/AN/A
  • Linux KernelLinux Kernel
  • kernel-rt-64k-debug-modules-extra
NoYesDec 09, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo