Critical Memory Leak Vulnerability in Linux Kernel Package
Summary
DEBIAN-CVE-2025-38057: In the Linux kernel, the following vulnerability has been resolved: espintcp: fix skb leaks A few error paths are missing a kfree_skb. Affects linux versions < 6.12.32-1. Fixed in 6.12.32-1. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Linux kernel is the core component of the Linux operating system, responsible for managing system resources and hardware interactions. It provides essential services for all other software running on the system. The kernel is known for its stability, performance, and security features. However, like any complex software, it can be susceptible to vulnerabilities that may compromise system integrity and performance.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified related to the espintcp component, which is responsible for handling TCP connections. The issue arises from missing error path handling that leads to memory leaks via the kfree_skb function. This can result in increased memory consumption over time, potentially leading to system instability or crashes. The vulnerability was introduced in earlier versions and has been fixed in version 6.12.32-1.
How To Fix
Minimum fixed version
6.12.32-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the patch by updating the package.
Conclusion
The identified vulnerability in the Linux kernel related to memory leaks poses a significant risk to system stability. It is essential to update to the patched version 6.12.32-1 to mitigate this risk. Users are encouraged to utilize tools like Vulert for ongoing monitoring of vulnerabilities in their software.
See every vulnerability recorded for linux →
FAQ
The vulnerability can lead to memory leaks, which may cause increased memory usage and potentially lead to system crashes or instability.
You can check if your system is affected by using tools like Vulert, which monitors and alerts for open-source vulnerabilities in real-time.
Yes, the vulnerability affects versions prior to 6.12.32-1. It is crucial to update to this version or later to mitigate the risk.
If you cannot update immediately, monitor your system closely for any signs of instability and consider using Vulert to keep track of vulnerabilities.
More information can be found in the official Debian CVE database or by visiting Vulert's website for real-time monitoring.
References
Related vulnerabilities
Recent vulnerabilities recorded for linux.
