fix: handle trailing replacement character in Whisper word timestamp decoding#45226
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akhilc08 wants to merge 1 commit intohuggingface:mainfrom
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…decoding Add bounds check in `_split_tokens_on_unicode()` to prevent IndexError when the decoded token stream ends with a dangling Unicode replacement character (U+FFFD), causing the computed index to equal `len(decoded_full)`. Closes #44869 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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[For maintainers] Suggested jobs to run (before merge) run-slow: whisper |
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View the CircleCI Test Summary for this PR: https://huggingface.co/spaces/transformers-community/circle-ci-viz?pr=45226&sha=67de02 |
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Summary
IndexError: string index out of rangecrash in_split_tokens_on_unicode()when the decoded token stream ends with a dangling Unicode replacement character (U+FFFD)unicode_offset + decoded.index(replacement_char) >= len(decoded_full), the out-of-bounds access is avoidedCloses #44869
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