AIKIDO-2026-11089

TL;DR

The CachingStream decorator wraps remote streams so previously read bytes can be replayed after seeking. Forward seek() could spin indefinitely when the remote stream was not at EOF but returned no data on each read, consuming CPU on the worker handling that stream. On read(), a cache target that persisted only part of a write was previously ignored, which could silently corrupt later replays from the cache. The patch stops no-progress seek loops and throws when the cache buffer cannot store the full read.