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cdumez

WebCore security specialist

685 commits (6mo)
60 security fixes
69 hardening
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Summary

cdumez works primarily across WebCore and the WebKit UIProcess/IPC layer, with a recurring third track in WTF. The pattern is a sustained hardening campaign rather than isolated fixes: Safer CPP cleanups (uncounted locals, lambda captures, forward declarations), thread-safety annotations on cross-thread state, and API changes that make invalid states unrepresentable — encoding-typed CString variants (UTF8CString/ASCIICString), a WTF::UUID that cannot carry an invalid value over IPC, and a privatized `String(std::span<const char>)` constructor. The security fixes cluster on the compromised-WebContent threat model — a MESSAGE_CHECK regression in SetRawCookie, unvalidated `numberOfFrames` in remote audio sample delivery, transient-activation validation relocated to the UIProcess — making recently added or refactored IPC entry points a systematic-variant candidate, alongside the ShareDataReader use-after-free as an example of the completion-handler lifetime class in the same layer.

Components

WebCore
35%
WebKit
30%
WTF
18%
JSC
10%
Platform
3%
Other
2%

Security Fix History

1 / 6

Hardening Commits

1 / 7

Recent Commits

1 / 34

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