[ https://issues.apache.org/jira/browse/SOLR-13185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Charles Sanders updated SOLR-13185: ----------------------------------- Attachment: SOLR-13185.patch > NPE in query parsing because of missing null check > -------------------------------------------------- > > Key: SOLR-13185 > URL: https://issues.apache.org/jira/browse/SOLR-13185 > Project: Solr > Issue Type: Bug > Security Level: Public(Default Security Level. Issues are Public) > Components: query parsers > Affects Versions: master (9.0) > Environment: h1. Steps to reproduce > * Use a Linux machine. > * Build commit {{ea2c8ba}} of Solr as described in the section below. > * Build the films collection as described below. > * Start the server using the command {{./bin/solr start -f -p 8983 -s > /tmp/home}} > * Request the URL given in the bug description. > h1. Compiling the server > {noformat} > git clone https://github.com/apache/lucene-solr > cd lucene-solr > git checkout ea2c8ba > ant compile > cd solr > ant server > {noformat} > h1. Building the collection > We followed [Exercise > 2|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html#exercise-2] from > the [Solr > Tutorial|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html]. The > attached file ({{home.zip}}) gives the contents of folder {{/tmp/home}} that > you will obtain by following the steps below: > {noformat} > mkdir -p /tmp/home > echo '<?xml version="1.0" encoding="UTF-8" ?><solr></solr>' > > /tmp/home/solr.xml > {noformat} > In one terminal start a Solr instance in foreground: > {noformat} > ./bin/solr start -f -p 8983 -s /tmp/home > {noformat} > In another terminal, create a collection of movies, with no shards and no > replication, and initialize it: > {noformat} > bin/solr create -c films > curl -X POST -H 'Content-type:application/json' --data-binary '{"add-field": > {"name":"name", "type":"text_general", "multiValued":false, "stored":true}}' > http://localhost:8983/solr/films/schema > curl -X POST -H 'Content-type:application/json' --data-binary > '{"add-copy-field" : {"source":"*","dest":"_text_"}}' > http://localhost:8983/solr/films/schema > ./bin/post -c films example/films/films.json > {noformat} > Reporter: Johannes Kloos > Priority: Minor > Labels: diffblue, newdev > Attachments: SOLR-13185.patch, home.zip > > > Requesting the following URL causes Solr to return an HTTP 500 error response: > {noformat} > http://localhost:8983/solr/films/select?defType=complexphrase&q.op=AND > {noformat} > The error response seems to be caused by the following uncaught exception: > {noformat} > java.lang.NullPointerException > at java.io.StringReader.<init>(StringReader.java:50) > at > org.apache.lucene.queryparser.classic.QueryParserBase.parse(QueryParserBase.java:106) > at > org.apache.lucene.queryparser.complexPhrase.ComplexPhraseQueryParser.parse(ComplexPhraseQueryParser.java:125) > at > org.apache.solr.search.ComplexPhraseQParserPlugin$ComplexPhraseQParser.parse(ComplexPhraseQParserPlugin.java:164) > at org.apache.solr.search.QParser.getQuery(QParser.java:173) > at > org.apache.solr.handler.component.QueryComponent.prepare(QueryComponent.java:158) > [...] > {noformat} > What happens here is that a querystring (qstr) is passed into a StringReader. > Ultimately, this query string comes from the method o.a.s.h.c.QueryComponent, > in method prepare (line 157), where it is extracted using rb.queryString() > [rb is of type responseBuffer]. The query string stored in the response > buffer was earlier on extracted from the request URL by looking for the "q" > parameter; note that this parameter is absent in the example request, so qstr > would be null. The extracted qstr is then passed to QParser.getParser, which > expects a non-null query string. > We found this bug using [Diffblue Microservices > Testing|https://www.diffblue.com/labs/]. Find more information on this [fuzz > testing > campaign|https://www.diffblue.com/blog/2018/12/19/diffblue-microservice-testing-a-sneak-peek-at-our-early-product-and-results]. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org