← WebKit — 2026-W41
a9bd62bea8c1974a69072f33a0cde9ef6d9f9f96 [CoordinatedGraphics] Use a swapchain of three buffers for WebGL
not a security fix
confidence 0.15
signal score 7.06
Source/WebCore/platform
Classified as not security-relevant.
Triage note: Coordinated Graphics WebGL rewrite: new GraphicsContextGLCoordinated with a triple-buffered drawing-buffer swap chain and a ThreadSafeRefCounted CoordinatedWebGLTextureWrapper so a texture handed to a Skia promise image is kept alive (isInUse()/hasOneRef) until the compositor is done. Memory-safety-flavored architectural change but a feature rewrite, not a pinpointed exploitable fix.
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: Coordinated Graphics WebGL rewrite: new GraphicsContextGLCoordinated with a triple-buffered drawing-buffer swap chain and a ThreadSafeRefCounted CoordinatedWebGLTextureWrapper so a texture handed to a Skia promise image is kept alive (isInUse()/hasOneRef) until the compositor is done. Memory-safety-flavored architectural change but a feature rewrite, not a pinpointed exploitable fix.
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: smartptr_member_added (+6.47), null_guard (+2.59), large_churn (-2.0)
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