A 32-bit integer overflow in macOS's XNU kernel renders all new TCP connections impossible after 49.7 days of continuous uptime. Apple has not implemented the workaround defined in RFC 7323 over two decades ago.
A GitHub issue claimed that Claude Code was destroying uncommitted changes with `git reset --hard origin/main` every ten minutes, but the culprit turned out to be a separate tool the reporter had written.
Claude Code's Cowork creates a 10GB+ claudevm.bundle on macOS without warning, regenerates after deletion, pushes idle CPU to 55%, and on macOS 26.x adds vsock startup failures. Status of GitHub issue #22543 (81 thumbs up) and what users actually do to clear it.
