https://mohandacherir.github.io/Qdiv7/tags/memory/Recent content in Memory on Moe's VR blogHugoenFri, 20 Mar 2026 00:00:00 +0000https://mohandacherir.github.io/Qdiv7/posts/refcounting-linux-kernel/Tue, 23 Dec 2025 00:00:00 +0000https://mohandacherir.github.io/Qdiv7/posts/refcounting-linux-kernel/<p>As a means of studying and getting to know more about the linux kernel, especially exploitation(LPE &amp; RCE), i tried to make notes and go as far as i can in reviewing the <strong>unix garbage</strong>, or <strong>GC</strong>, collector, the <strong>io_uring</strong> subsystem, and some CVEs that showcase all of these. I am currently working on an N-day LPE for CVE-2022-2602 LPE to make it work with <strong>FUSE</strong> technique.</p>https://mohandacherir.github.io/Qdiv7/posts/notes-on-linux-internals-the-slab-allocator/Sat, 06 Sep 2025 00:00:00 +0000https://mohandacherir.github.io/Qdiv7/posts/notes-on-linux-internals-the-slab-allocator/<h2 id="introduction">Introduction</h2> <p>This post is some of my early notes on the SLUB allocator.</p> <p>The kernel heap allocator is an important component responsible for satisfying allocation/de-allocation requests coming from different sources like device drivers, usermode processes, filesystems, etc. These notes discuss only <code>kmalloc</code> and <code>kmem_cache_alloc*</code>, but there are three main memory allocators used by the kernel:</p>