TechHacker Newsabout 2 hours ago
A flaky test exposed a Redis client use-after-free
1 min read
A flaky test exposed a use-after-free bug in the redis-client library. The bug caused memory corruption when hiredis reader and writer threads raced, freeing the writer buffer. Buildkite engineers used ASAN and a core dump to identify the issue, then disabled the C extension as a fix.
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