[8.19] [ML] Fail gracefully when restoring a categorizer with an out-of-range token ID (#3143) - #3150
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elastic-vault-github-plugin-prod[bot] merged 2 commits intoAug 13, 2026
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…e token ID (#3143) An inconsistent or truncated categorizer state document can leave a restored category referencing a token ID at or beyond the end of the restored token ID lookup. That ID was later used to index the token ID lookup unchecked (for example when building a reverse search), which is an out-of-bounds access that can crash the autodetect process with a SIGSEGV inside libc rather than failing the restore. Validate, at the end of CTokenListDataCategorizerBase::acceptRestoreTraverser, that every token ID referenced by a restored category exists in the restored token ID lookup, and fail the restore gracefully if not. This is consistent with the graceful invalid-state handling added in #2895/#2898. Relates to #2875 Co-authored-by: Cursor <cursoragent@cursor.com> (cherry picked from commit 0f41e80)
The cherry-picked unit tests use JSON restore; 8.19's test file only included RapidXml headers, so all platform builds failed to compile. Co-authored-by: Cursor <cursoragent@cursor.com>
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