CVE-2025-21638 - Linux Kernel SCTP Sysctl Vulnerability Explained
Date: June 2024
CVE ID: CVE-2025-21638
Component: Linux Kernel SCTP
Severity: Medium (Potential for denial-of-service/panic)
Fixed in: 6.9.2, 6.8.2, 6.
CVE-2025-21631 - Use-After-Free in Linux Kernel’s BFQ Block Scheduler – Exploit Analysis and Fix
In early 2024, researchers and kernel fuzzers uncovered a serious use-after-free (UAF) vulnerability in the Linux kernel’s BFQ block I/O scheduler. The issue,
CVE-2025-21654 - Linux Kernel OverlayFS File Handle Encoding Vulnerability Explained
The Linux Kernel is the heart of countless devices and systems around the globe. Now and then, a seemingly small bug can have surprising consequences
CVE-2025-21651 - Linux Kernel hns3 Networking Vulnerability Exploited via Early Interrupts
In early 2024, security researchers and developers identified a race condition in the Linux kernel's handling of network interrupts for the HNS3 driver,
CVE-2025-21648 - How a Linux Kernel Netfilter Vulnerability Could Trigger WARN_ON_ONCE in Conntrack
Summary:
A recent Linux Kernel vulnerability identified as CVE-2025-21648 exposed a risk in the netfilter conntrack hashtable resizing logic. This post breaks down what happened,
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