OSV-2024-963 Heap-buffer-overflow in GfxTilingPattern::scanXObjectForBlendMode

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68412 Crash type: Heap-buffer-overflow READ 1 Crash state: GfxTilingPattern::scanXObjectForBlendMode GfxTilingPattern::scanSoftMaskForBlendMode GfxTilingPattern::scanExtGStateForBlendMode...