pgsql: Avoid out-of-bounds read in errfinish if error_stack_depth < 0. - Mailing list pgsql-committers

Avoid out-of-bounds read in errfinish if error_stack_depth < 0.

If errordata_stack_depth < 0, we won't find that out and correct the
problem until CHECK_STACK_DEPTH() is invoked.  In the meantime,
elevel will be set based on an invalid read.  This is probably
harmless in practice, but it seems cleaner this way.

Xi Wang

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/9d140f7be2836e3baf6c9dc7989dea69ef693532

Modified Files
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src/backend/utils/error/elog.c |    3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)