← WebKit — 2026-W35
57d983744d8291b14fccd688f04669011fe80254 [JSC] Skip the global StructureCache when the prototype has never been a prototype
not a security fix
confidence 0.12
signal score 8.32
Source/JavaScriptCore/bytecode
Classified as not security-relevant.
Triage note: Adds a ShouldCacheStructure flag so a churning InternalFunctionAllocationProfile does not pollute the global structure cache, plus a mayBeInCache lookup skip. Perf/memory optimization, no memory-safety or logic security bug.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Triage note: Adds a ShouldCacheStructure flag so a churning InternalFunctionAllocationProfile does not pollute the global structure cache, plus a mayBeInCache lookup skip. Perf/memory optimization, no memory-safety or logic security bug.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Structural signals: security_assert (+4.87), null_guard (+1.95), msg_feature (-1.0), area:Source/JavaScriptCore/bytecode (+2.5)
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