Horton

Check for stack overrun in standard_ProcessUtility().

Tom Lane <tgl@sss.pgh.pa.us>

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Commit: 3a60c8bb1698ddde56ee2a0749c75aa1399556fc
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2018-10-15T18:01:38Z
Releases: 9.3.25 
Check for stack overrun in standard_ProcessUtility().

ProcessUtility can recurse, and indeed can be driven to infinite
recursion, so it ought to have a check_stack_depth() call.  This
covers the reported bug (portal trying to execute itself) and a bunch
of other cases that could perhaps arise somewhere.

Per bug #15428 from Malthe Borch.  Back-patch to all supported branches.

Discussion: https://postgr.es/m/15428-b3c2915ec470b033@postgresql.org

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src/backend/tcop/utility.c modified +3 −0

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