You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "David Smiley (JIRA)" <ji...@apache.org> on 2017/11/22 13:53:00 UTC
[jira] [Resolved] (SOLR-11512) Infinite parsing loop possible with
edismax bq and local-params
[ https://issues.apache.org/jira/browse/SOLR-11512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David Smiley resolved SOLR-11512.
---------------------------------
Resolution: Fixed
Assignee: David Smiley
Fix Version/s: 7.2
Fixed via SOLR-11501.
BTW I was wrong when I said dismax is affected; only edismax is.
> Infinite parsing loop possible with edismax bq and local-params
> ---------------------------------------------------------------
>
> Key: SOLR-11512
> URL: https://issues.apache.org/jira/browse/SOLR-11512
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 7.1
> Reporter: Will Currie
> Assignee: David Smiley
> Priority: Minor
> Fix For: 7.2
>
> Attachments: SOLR-11512.patch
>
>
> The following query against the techproducts example puts solr into an infinite loop:
> {noformat}
> curl -g -v 'http://localhost:8983/solr/techproducts/select?q=*&defType=edismax&qq={!edismax+v=something}&bq={!edismax+v=$qq}
> {noformat}
> Problem doesn't depend on the collection, just an easy example. I guess I'd expect a failure with "Infinite Recursion detected parsing query ..." instead. So depending on the query config a user typing {!edismax v=whatever} into a search box can send a solr instance to 100% cpu.
> I can reproduce using TestExtendedDismaxParser by adding:
> {code}
> @Test
> public void loopsForever() throws Exception {
> assertJQ(req("defType", "edismax", "q", "*", "qq", "{!edismax v=something}", "bq", "{!edismax v=$qq}"));
> }
> {code}
> The code seems to hit QParser.checkRecurse() and try to fail but something sends it around for another try. Repeat.
> Given the complexity of the parsing code there may well be other examples. There's no way to disable the local params syntax is there? Question was asked in SOLR-4197.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org