CVE-2026-31431 \"Copy Fail\": A Deep Dive into the Linux algif_aead Privilege Escalation
Vulnerability Overview Field Detail CVE ID CVE-2026-31431 Nickname Copy Fail CVSS 3.1 7.8 (HIGH) — AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Affected comp…
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Building NexisK: A Technical Deep Dive into My i386 Kernel
Building NexisK: Inside My i386 Kernel, Custom Bootloader and Memory Management Building an operating system kernel from scratch is not primarily ab…
Kernel & Embedded News: Arm64 Drops Big-Endian, Boots CPUs in Parallel
Arm64 platform direction dominated this week: Will Deacon posted v2 of the series that removes big-endian kernel support, aimed at Linux 7.4, and a…
The Linux DMA API: Coherent and Streaming Mappings Explained
The Linux DMA API exists because the address a device uses is not the address the CPU uses, and because on most embedded SoCs the CPU cache is not k…
Kernel & Embedded News: Linux 7.2 Nears Release; Swap I/O Rework
Linux 7.2 is expected as a stable release around 16 August 2026, so teams carrying an embedded BSP should test against the release candidates now, e…
Architecting Mainline-Friendly Products
Mainline-friendly products are designed so their board support lives in upstream Linux, U-Boot, and standard build systems instead of a vendor fork.…
Building a Linux Kernel Module in Pure x86
Most Linux kernel modules are written in C. The reasons are obvious: The kernel APIs are designed around C. Documentation assumes C. The build syste…
Swap Fire on My VPS: A Nightmare That Started with a Kernel CVE Patch
Sudden Increase in Swap Usage: Symptoms and Initial Findings This morning, when I connected to my server, I wanted to check the system health before…