OSV-2025-938 Use-of-uninitialized-value in comp_func_SourceOver_avx2

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=462673332 Crash type: Use-of-uninitialized-value Crash state: compfuncSourceOveravx2 blenduntransformedgeneric blenduntransformedgeneric...