Linux Kernel Security
The latest Linux Kernel Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
CVE-2026-45839: Linux eBPF Parsing Bug Crashes Kernels — What Windows Users Need to Do
On May 27, 2026, Linux kernel maintainers disclosed a vulnerability that exposes a fundamental parsing mistake in the kernel's eBPF subsystem. Tracked as CVE-2026-45839, the bug allows any local user...
Unprivileged BPF Detach Flaw Fixed in Linux—Check Your WSL and Container Hosts
A Linux kernel vulnerability disclosed on May 27, 2026, lets any local user detach security-critical BPF programs from network interfaces, bypassing standard permission checks. Tracked as...
Linux Bluetooth Bug CVE-2026-45835 Fixed—Here’s Why Your Windows Fleet Should Care
The Linux kernel team has patched a Bluetooth flaw that could crash systems running kernel versions going back to 3.1. CVE-2026-45835, published by the National Vulnerability Database on May 26,...
USB Audio Flaw in Linux Kernel (CVE-2026-46018) Can Cause System Hang—WSL Users Advised to Update
On May 27, 2026, the National Vulnerability Database published CVE-2026-46018, a Linux kernel vulnerability in the ALSA USB-audio driver that lets a malicious or malformed USB audio device stall the...
Linux Kernel ALSA Bug CVE-2026-46088: Missing strnlen Check Causes Panic
The Linux kernel's Advanced Linux Sound Architecture (ALSA) subsystem harbored a glaring omission—a missing string length check that could yank the entire operating system down into a kernel panic....
Linux kernel Intel VT-d PASID race bug enables privilege escalation in VMs
Linux kernel maintainers dropped a security advisory on May 27, 2026, detailing CVE-2026-45894—a dangerous race condition in the kernel's Intel VT-d IOMMU driver. The bug exposes a window where the...
CVE-2026-46085: Linux Kernel RxRPC rxkad Flaw Patched — Remote Kernel Warning Risk Affects WSL Users
A newly disclosed vulnerability in the Linux kernel’s RxRPC protocol could have allowed remote attackers to trigger a kernel warning, potentially leading to denial of service on unpatched systems....
Linux Kernel CVE-2026-46012: Patch Now for rxrpc Memory Leak DoS Risk
The National Vulnerability Database (NVD) published CVE-2026-46012 on May 27, 2026, after kernel.org assigned a CVE to a memory-leak fix in the Linux kernel's rxrpc authentication path. The...
Kernel MCTP Bug Leaks Memory via Uninitialized Padding; Patching Urged
A routine code audit of the Linux kernel’s MCTP networking subsystem uncovered a subtle but dangerous bug—a classic uninitialized-memory information leak hiding in plain sight. CVE-2026-45930,...
CVE-2026-46005: Linux Kernel XFS DAX Bug Patched – Here’s Why Windows Users Should Care
A resource leak buried deep in the Linux kernel’s XFS filesystem has been eliminated, closing a flaw that could have slowly starved systems of memory under specific conditions. The fix, assigned...
CVE-2026-45841 Netfilter Bug: How a Divide-by-Zero Error Lets Privileged Users Crash Linux Kernels
The Linux kernel’s netfilter subsystem has been assigned a new CVE identifier for a local denial-of-service vulnerability that can trigger a kernel panic through a divide-by-zero error. Published...
Azure Linux 3.0 Admins Must Patch Critical CVE-2026-46333 ptrace Flaw Now
Microsoft’s security response team flagged CVE-2026-46333 on May 16, 2026, and updated the advisory on May 21, confirming a critical flaw in the Linux kernel’s ptrace mechanism that directly...