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doPickSplit stack buffer overflow in XLogInsert? - Mailing list pgsql-hackers

From Kevin Grittner
Subject doPickSplit stack buffer overflow in XLogInsert?
Date
Msg-id 1385504078.81471.YahooMailNeo@web162905.mail.bf1.yahoo.com
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Responses Re: doPickSplit stack buffer overflow in XLogInsert?  (Andres Freund <andres@2ndquadrant.com>)
Re: doPickSplit stack buffer overflow in XLogInsert?  (Peter Eisentraut <peter_e@gmx.net>)
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I happened to build in a shell that was still set up for the clang
address sanitizer, and got the attached report.  On a rerun it was
repeatable.  XLogInsert() seems to read past the end of a variable
allocated on the stack in doPickSplit(). I haven't tried to analyze
it past that, since this part of the code is unfamiliar to me.

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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