EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Lobsters·28d ago·5 min read
How can you not be romantic about UNIX domain sockets?
TL;DR
A technical iOS demo at DEFCON 34 experienced a crash due to a specific issue with freshly booted devices, unrelated to randomness. This incident prompted further investigation into the underlying cause of the crash.
✦ Why It Matters
Investigate device initialization issues in your iOS applications to prevent similar crashes.
Key Takeaways
- Investigate kernel interactions when debugging application crashes.
- Check for historical bugs in system calls like fstat.
- Implement additional checks for inode consistency in your code.
- Stay informed about kernel-level changes in operating systems.
How It Works
The bug arises from a logic error in the kernel's handling of inode numbers for UNIX domain sockets. When the first fstat call is made, it assigns an inode number of 0, which leads to inconsistencies on subsequent calls.
The fix involves changing the increment operation from post-increment to pre-increment, ensuring that the inode number is correctly assigned.