← WebKit Silent-Fix Report — 2026-W25

ea232f3860  Crash at WebKit: IPC::Encoder::grow after a call to browser.storage.local.get()

severity low class IntOverflow confidence 0.55 WebKit WebExtensions storage
Kiara Rose Fri Jun 19 09:57:34 2026 -0700 full: ea232f38603949069f5757d9b3b9210dc3eb94db bug report ↗ view on GitHub ↗
Primitive: oversized IPC reply overflows Encoder::grow
Triage note: Adds a max-bytes-per-call limit preventing an oversized serialized reply from crashing the process in IPC encoding.

Security-relevant, below the exploitable-grade bar for a full root-cause writeup. The triage verdict is above; the side-by-side patch is below.

Before / after

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