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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2015-11-17 15:46:47 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2015-11-17 15:47:12 -0500 |
| commit | 728a2ac214d8084cdc471fe18ece8d2699f47814 (patch) | |
| tree | aa16ba635974157b5a4a1eb50d5653f9beb697d7 /src/backend/utils/adt/xml.c | |
| parent | 7b21d1bcafef3bb039cef3725c01894070700f99 (diff) | |
| download | postgresql-728a2ac214d8084cdc471fe18ece8d2699f47814.tar.gz postgresql-728a2ac214d8084cdc471fe18ece8d2699f47814.zip | |
Fix possible internal overflow in numeric division.
div_var_fast() postpones propagating carries in the same way as mul_var(),
so it has the same corner-case overflow risk we fixed in 246693e5ae8a36f0,
namely that the size of the carries has to be accounted for when setting
the threshold for executing a carry propagation step. We've not devised
a test case illustrating the brokenness, but the required fix seems clear
enough. Like the previous fix, back-patch to all active branches.
Dean Rasheed
Diffstat (limited to 'src/backend/utils/adt/xml.c')
0 files changed, 0 insertions, 0 deletions