← WebKit Silent-Fix Report — 2026-W25

25570b9123  isValidVideoFrameBufferInit() tests displayWidth/Height presence against itself

severity low class LogicError confidence 0.45 WebCore WebCodecs VideoFrame
Charlie Wolfe Wed Jun 17 11:35:09 2026 -0700 full: 25570b9123de10c7a7035d9aa7a1b584abb25fc6 bug report ↗ view on GitHub ↗
Primitive: zero display dimensions pass validation
Triage note: A validation no-op let zero display dimensions into the media pipeline; potential downstream issue but exploitability from the diff is unclear.

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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