10 years since I completed the LFD420 course by The Linux Foundation
10 years ago today, I completed the LFD420 training by The Linux Foundation. About a year later, I became a professional Linux kernel developer. 🐧Ǵ...
Author: Gustavo A. R. Silva
Gustavo A. R. Silva works full-time as an Upstream Linux Kernel Engineer focused
on hardening and proactive security. He has spent the past several years fixing
all sorts of bugs and hardening the Linux kernel. His work is supported by The Linux Foundation and the Alpha-Omega project. He’s a member of the Linux Kernel Self-Protection Project, and a regular speaker at Kernel Recipes and Open Source Summit. He has also presented at Linux Security Summit, Lund LinuxCon, Linux Plumbers Conference, Everything Open, The University of Adelaide, and Symposium sur la Sécurité des Technologies de l’Information et des Communications (SSTIC) as an invited speaker.
16 years since my first patch to the Linux kernel
16 years ago today, after watching a presentation on YouTube titled “Write and Submit your first Linux Kernel Patch” by Greg Kroah-Hartman, I submit...
-Wflex-array-member-not-at-end/Kernel Self-Protection Project/Linux Kernel Bugs/Linux Kernel Hardening
-Wflex-array-member-not-at-end and a misalignment bug in the Linux kernel
The warning During one of my presentations at Open Source Summit Japan 🇯🇵 the past year, I talked about a bug I found while addressing -Wflex-ar...
-Wflex-array-member-not-at-end/Kernel Self-Protection Project/Linux Kernel Bugs/Linux Kernel Hardening
100 -Wflex-array-member-not-at-end issues in linux-next
Today I woke up to the great news that we now have “only” 100 -Wflex-array-member-not-at-end issues left to be addressed in linux-next. I started fi...
-Wflex-array-member-not-at-end/Kernel Self-Protection Project/Linux Kernel Bugs/Linux Kernel Hardening
Here to fix what I break: Fixing a 2-year-old bug in the Linux kernel
While reviewing one of the patches sent to the linux-hardening list this afternoon, I spotted a bug I introduced in the same code two years ago (on March 5 2024...
Kernel Self-Protection Project/Linux Kernel Hardening/Mentoring/Open Source/Open Source Education/Presentations
Guest lecture at Okayama University
I talked for more than two hours (135 mins to be precise) about upstream Linux kernel hardening at Okayama University this afternoon. 🐧👨🏽...
First Linux kernel patch of 2026
First kernel patch of 2026 addressing 2,600 -Wflex-array-member-not-at-end warnings at once: ▫️ [PATCH v2][next] ipv4/inet_sock.h: Avoid thousands...
-Wflex-array-member-not-at-end/Conferences/Kernel Self-Protection Project/Linux Kernel Hardening/Mentoring/Presentations
Presenting at Open Source Summit Japan
I had a great time at Open Source Summit and Linux Plumbers Conference in Japan last December. 🇯🇵🐧 Here are the links to my two presenta...
Access request for Linux Coverity scans
I received the following request this evening and it absolutely made my day. 🙂 I’m a mechatronics student and I discovered the project from this b...
-Wflex-array-member-not-at-end/Conferences/Kernel Self-Protection Project/Linux Kernel Hardening/Mentoring/Presentations
Presenting at Open Source Summit Korea 2025
First time in South Korea. Three talks in two days. Over 200 minutes of public speaking. Two packed rooms. Made new connections. (My luggage arrived four days a...