Blogging about low-level programming and binary exploitation.https://r1ru.github.io/https://r1ru.github.io/posts/0/https://r1ru.github.io/posts/0/In this post, I will explain how to build and debug the Linux kernel. :::noteThu, 10 Apr 2025 00:00:00 GMThttps://r1ru.github.io/posts/1/https://r1ru.github.io/posts/1/In this post, I will explain cross-cache attack, a fundamental technique for advanced Linux kernel exploitation. Understanding this technique is important...Sun, 27 Apr 2025 00:00:00 GMThttps://r1ru.github.io/posts/10/https://r1ru.github.io/posts/10/This blog series is still a work in progress. The content may change without notice. :::Fri, 05 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/11/https://r1ru.github.io/posts/11/This blog series is still a work in progress. The content may change without notice. :::Wed, 10 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/12/https://r1ru.github.io/posts/12/This blog series is still a work in progress. The content may change without notice. :::Sat, 13 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/13/https://r1ru.github.io/posts/13/This blog series is still a work in progress. The content may change without notice. :::Sat, 13 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/14/https://r1ru.github.io/posts/14/This blog series is still a work in progress. The content may change without notice. :::Sun, 14 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/15/https://r1ru.github.io/posts/15/This blog series is still a work in progress. The content may change without notice. :::Mon, 15 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/16/https://r1ru.github.io/posts/16/This blog series is still a work in progress. The content may change without notice. :::Tue, 16 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/17/https://r1ru.github.io/posts/17/This blog series is still a work in progress. The content may change without notice. :::Wed, 17 Sep 2025 00:00:00 GMThttps://r1ru.github.io/posts/2/https://r1ru.github.io/posts/2/In this post, I will explain Dirty PageTable, a universal and data-only exploitation technique that allows us to gain arbitrary read and write access to the...Mon, 28 Apr 2025 00:00:00 GMThttps://r1ru.github.io/posts/3/https://r1ru.github.io/posts/3/In this post, I will explain DirtyCred, a universal and data-only exploitation technique that allows us to escalate privileges without a write primitive....Tue, 29 Apr 2025 00:00:00 GMThttps://r1ru.github.io/posts/4/https://r1ru.github.io/posts/4/In this post, I will explain Dirty Pipe, a universal and data-only exploitation technique that allows us to arbitrarily overwrite read-only files. Download...Wed, 30 Apr 2025 00:00:00 GMThttps://r1ru.github.io/posts/5/https://r1ru.github.io/posts/5/In this post, I will explain USMA, a universal and data-only exploitation technique that allows us to patch kernel code from user space. Download the...Fri, 02 May 2025 00:00:00 GMThttps://r1ru.github.io/posts/6/https://r1ru.github.io/posts/6/In this post, I will explain PageJack, a universal and data-only exploitation technique that turns an off-by-one bug into a page UAF. Download the handouts...Sat, 03 May 2025 00:00:00 GMThttps://r1ru.github.io/posts/7/https://r1ru.github.io/posts/7/At TsukuCTF 2025, I created three kernel pwn challenges. It was my first time creating CTF challenges, but I learned a lot through the process. While...Sun, 04 May 2025 00:00:00 GMThttps://r1ru.github.io/posts/8/https://r1ru.github.io/posts/8/This blog series is still a work in progress. The content may change without notice. :::Wed, 27 Aug 2025 00:00:00 GMThttps://r1ru.github.io/posts/9/https://r1ru.github.io/posts/9/This blog series is still a work in progress. The content may change without notice. :::Thu, 04 Sep 2025 00:00:00 GMT