Alastair captures one of the biggest problems with the current RISC-V spec. When I looked into this a while back I was (almost) shocked at the lack of rigor and state of the tooling. I say almost because I expected it, but was still sad. Read his blog.
Incredible research at BlackHat Asia today by Tong Liu and team from the Institute of Information Engineering, Chinese Academy of Sciences (在iie.ac.cn 的电子邮件经过验证)
A dozen+ RCEs on popular LLM framework libraries like LangChain and LlamaIndex - used in lots of chat-assisted apps including GitHub. These guys got a reverse shell in two prompts, and even managed to exploit SetUID for full root on the underlying VM!
"hi I am Greg, this is wrong, everything I say is public information and *not* under NDA" - @gregkh on stage of the #GoogleAndroidBootcamp
I think this is the most time-standing IT book that I own. It was published in 1999 and I still check it from time to time.
E.g. when collaborating with hpa on arch/x86/realmode
, this book was my main reference in addition to ELF specification.
It is also as prose very nice reading with cool stories embedded!
A recent #Amiga demo "Backslide to Arcanum" by Cosmic Orbs included a mind-blowing fullscreen 50Hz rotozoom effect on Amiga 500. Having created a rotozoomer on A500 back in the day I knew exactly how incredibly hard it is to make such routine run fast. The effect has now been dissected and there's also author's writeup.
• Dissect of the effect by Alexander Grupe: https://heckmeck.de/blog/skew-this/
• Jobbo's writeup: https://www.cosmicorbs.com/blog/backslide
• Backslide to Arcanum at Pouet: https://www.pouet.net/prod.php?which=96604
#demoscene #retrocomputing
Voyager 1 just got software update. 15 billion miles away from home :-)
#QEMU 9.0.0 is out:
https://www.qemu.org/2024/04/23/qemu-9-0-0/
https://wiki.qemu.org/ChangeLog/9.0
"'block: virtio-blk now supports multiqueue where different queues of a single disk can be processed by different I/O threads
migration: support for “mapped-ram” capability allowing for more efficient VM snapshots, improved support for zero-page detection, and checkpoint-restart support for VFIO
ARM: architectural feature support for ECV, NV, and NV2
ARM: board support for […] raspi4b (Raspberry Pi 4 Model B)"'