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Several conversions from SQLite text to V8 strings passed a length of -1 to String::NewFromUtf8(). With that length, V8 skips its length check and aborts the process when the UTF-8 text exceeds String::kMaxLength. SQLite error messages embed the offending identifier or token, so CreateSQLiteErrorImpl() could hit this. NullableSQLiteStringToValue(), used for setAuthorizer() callback arguments and statement.columns() metadata, had the same problem, and the authorizer also called ToLocalChecked() on each argument. Convert error messages with Utf8StringMaybeOneByte(), and check the length up front in NullableSQLiteStringToValue(), so oversized strings throw ERR_STRING_TOO_LONG as column values already do. In the authorizer, deny the action and let the pending error reach the caller. Signed-off-by: Trivikram Kamat <16024985+trivikr@users.noreply.github.com> Assisted-by: claude:opus-5.5
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Fixes: #66520
Fixes: #66522
Several conversions from SQLite text to V8 strings passed a length of -1 to
String::NewFromUtf8(). With that length, V8 skips its length check and aborts the process when the UTF-8 text exceedsString::kMaxLength.SQLite error messages embed the offending identifier or token, so
CreateSQLiteErrorImpl()could hit this.NullableSQLiteStringToValue(), used forsetAuthorizer()callback arguments andstatement.columns()metadata, had the same problem, and the authorizer also calledToLocalChecked()on each argument.Convert error messages with
Utf8StringMaybeOneByte(), and check the length up front inNullableSQLiteStringToValue(), so oversized strings throwERR_STRING_TOO_LONGas column values already do. In the authorizer, deny the action and let the pending error reach the caller.Assisted-by: claude:opus-5.5