← WebKit Silent-Fix Report — 2026-W25
fa10d866af Underflow in truncateByWordCount when the word limit is zero
severity low
class IntOverflow
confidence 0.55
WebKit Shared TextExtraction
Primitive: unsigned underflow when word limit is zero
Triage note: Adds a zero-limit early return preventing an unsigned underflow in word-count truncation.
Triage note: Adds a zero-limit early return preventing an unsigned underflow in word-count truncation.
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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