CVE-2025-21671 - Understanding and Exploiting the zram Potential UAF in the Linux Kernel
In early 2025, a significant security vulnerability in the Linux kernel's zram driver was assigned as CVE-2025-21671. The problem, technically described as a
CVE-2025-21673 - Double-Free Vulnerability in Linux Kernel CIFS Client (`TCP_Server_Info::hostname`)
A newly resolved vulnerability, CVE-2025-21673, affected the Linux kernel’s SMB (Samba) client implementation, in particular the handling of hostnames within the Common Internet File
CVE-2025-21670 - Linux Kernel `vsock/bpf` NULL Pointer Dereference Vulnerability Explained
Date Published: June 2024
Affected Component: Linux Kernel vsock subsystem (with BPF integration)
Fixed In: Kernel mainline as of June 2024
CVE: CVE-2025-21670
TL;DR
CVE-2025-21669 - Critical Linux Kernel Virtio-vsock Flaw Fixed – How Attackers Could Crash Machines
A new vulnerability, CVE-2025-21669, was recently fixed in the Linux kernel. This bug hits the virtio-vsock subsystem, which is how virtual machines (VMs) quickly send
CVE-2025-21675 - Linux Kernel Null Pointer Crash in mlx5 LAG Port Select – Exploit Details and Analysis
A subtle but critical bug was recently fixed in the Linux kernel’s mlx5 network driver code, specifically affecting Link Aggregation Group (LAG) port selection
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