Postgres Pro
Downloads
Home   >   mailing lists

pgsql: Only adjust negative indexes in json_get up to the length of the - Mailing list pgsql-committers

From Andrew Dunstan
Subject pgsql: Only adjust negative indexes in json_get up to the length of the
Date
Msg-id E1ZKCuI-00078j-Hl@gemulon.postgresql.org
Whole thread Raw
List pgsql-committers
Tree view 
Only adjust negative indexes in json_get up to the length of the path.

The previous code resulted in memory access beyond the path bounds. The
cure is to move it into a code branch that checks the value of lex_level
is within the correct bounds.

Bug reported and diagnosed by Piotr Stefaniak.

Branch
------
REL9_5_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/40a50a17b905dae233ddb8bb36b7deff9e3abb16

Modified Files
--------------
src/backend/utils/adt/jsonfuncs.c |   26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)

pgsql-committers by date:

Previous
From: Tom Lane
Date:
Subject: pgsql: Reduce chatter from signaling of autovacuum workers.
Next
From: Andrew Dunstan
Date:
Subject: pgsql: Only adjust negative indexes in json_get up to the length of the