Thanks for posting this — my adaptation of that sample code in my project had the same bug.
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I’m not sure how the SQL in your application gets generated, but if you allow untrusted SQL, it’s still possible to create a query that can cause the rank function to crash. For example (assuming I have my SQL blob-literal syntax correct) a call to XRank(x’77777777’). The function assumes the blob passed to it is valid output from matchinfo, where the initial 4 bytes are an array count; but if you pass a custom blob you can specify an overly large count that causes the function to read past the end of the blob … probably into unmapped address space if the count is big enough. —Jens _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
