OSV-2025-584 Heap-buffer-overflow in isvcd_mark_err_slice_skip

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=434978682 Crash type: Heap-buffer-overflow READ 2 Crash state: isvcdmarkerrsliceskip isvcdvideodecode Codec::decodeFrame...