A flaky test exposed a Redis client use-after-free

Software Releases & Release Notes, Other: Memory Corruption Bug(buildkite.engineering)view on HackerNews

redisredis-clientmemory corruptionbugdebuggingbuildkitehiredisc extensionasansegmentation faultcore dump

Author: DrNemski

Date: 7/22/2026

Article Summary:

A team at Buildkite investigates and resolves a memory corruption bug in the redis-client library, using a combination of tools and luck to identify and fix the issue.