Published By
Created On
13 Mar 2021 22:36:25 UTC
Transaction ID
Cost
Safe for Work
Free
Yes
GDB on the Linux Kernel: Debugging the Kernel pt3
In the previous two videos, we set up a Fedora workstation machine running a custom kernel, and we used syzkaller to find a bug in that kernel.
In this episode, we will use gdb to look at that bug
...
https://www.youtube.com/watch?v=unizGCcZg3Y
In this episode, we will use gdb to look at that bug
...
https://www.youtube.com/watch?v=unizGCcZg3Y
Author
Content Type
Unspecified
video/mp4
Language
English
More from the publisher
Controlling
VIDEO
EPISO
episode3-self-hosted-kubernetes-with-bpf
In this video we do the fun work of running a firecracker VM cluster, and setup Kubernetes on that cluster. The Kubernetes we use is deployed via the "Production Environment" instructions here:
https://kubernetes.io/docs/setup/production-environment/
Get my Scripts from github:
https://github.com/masmullin2000/qemu-runner (Virtual Machine Scripts)
https://github.com/masmullin2000/kuber-ansible (Ansible Scripts to install Kubernetes)
Thumbnail Image by: Rich Tervet
https://unsplash.com/photos/1jUPdfWZgps
...
https://www.youtube.com/watch?v=Ti17_mc9X_I
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
I NEE
i-need-help-with-bpf_override_return
In this video I describe that I cannot understand how bpf_override_return works.
I am requesting help from BPF experts to educate me.
...
https://www.youtube.com/watch?v=gzdNz5D9yjA
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
PLUG
plug-wasm-into-rust-with-wit-bindgen
WASM only provides four types. Wasm-bindgen solves the problem of marshaling and unmarshaling of complex types for Rust to WASM to Javascript for Running WASM in a browser. But wasm-bindgen doesn't work for plugging WASM into Rust
Wit-bindgen to the rescue!
Wit-bindgen can be found here:
https://github.com/bytecodealliance/wit-bindgen
My Example Code can be found here:
https://github.com/masmullin2000/wit-bindgen-example
Image by: Clint Patterson
https://unsplash.com/@cbpsc1
...
https://www.youtube.com/watch?v=pQ5PWMYg3xg
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
USING
using-mcheck-to-protect-against-heap
In my previous video, my friend Ben commented that mcheck could be used to help protect against heap overflows.
Due to my lack of presentation skills, I wasn't able to fully articulate why I don't think that mcheck is particularly great.
The TL;DR is that mcheck would be difficult to use on an already existing giant codebase. Because it requires source code editing, all of the 'danger areas' should be protected with the mcheck function. This is easy on a <75 line program like heap-zero, but would be a significant task on a program such as firefox.
...
https://www.youtube.com/watch?v=HqxXckba36k
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
DM-VE
dm-verity-a-gentle-introduction
In this video I show you how you can setup a loop device cryptographically verified to be not tampered with using dm-verity.
For more information on secure boot check out this video:
https://youtu.be/jtLQ8SzfrDU
...
https://www.youtube.com/watch?v=EG88qxByS-I
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
LETS
lets-review-some-code
Redditor has asked for a code review. Lets do it!
Fun little project making a terminal shell in rust. Good to review at the beginning
Code: https://github.com/js-simp/rush
...
https://www.youtube.com/watch?v=tAhwk9PU1Kk
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
BPF C
bpf-code-with-python-a-gentle
Lets code up a bpf analysis tool in python
Sorry about sections of the Audio, bad audio doesn't last long, ((my microphone wants me to become a robot))
Commands to setup bpf with python on pop!_OS
sudo apt install libbpfcc-dev python3-bpfcc bpfcc-tools
you'll also probably want
sudo apt install bpftrace clang cmake wget
...
https://www.youtube.com/watch?v=ayxHANt1YaI
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
DIVIN
diving-deeper-into-linux-security
Picking up from the last video, I dive deeper into how LSMs work.
...
https://www.youtube.com/watch?v=_sWGnxVmnIU
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
FINDI
finding-linux-kernel-bugs-with-syzkaller
In this video, I setup syzkaller to run on the Fedora Workstation Machine setup in "Debugging the kernel Pt1"
I find a bug, and reproduce it with a small C program
...
https://www.youtube.com/watch?v=50XmhnJO5p8
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English