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| author | Tomas Vondra <tomas.vondra@postgresql.org> | 2019-11-16 02:40:02 +0100 |
|---|---|---|
| committer | Tomas Vondra <tomas.vondra@postgresql.org> | 2019-11-16 03:07:11 +0100 |
| commit | 2dc08bd6179d8cf480c93701010c19ad7a9891d8 (patch) | |
| tree | e5d7ec8f6ee92ee76789599cc0028cfb71a6e2b9 /src/backend/utils/adt/ruleutils.c | |
| parent | d482f7f867b58bbd29f65a4471eca8c5b57a7da0 (diff) | |
| download | postgresql-2dc08bd6179d8cf480c93701010c19ad7a9891d8.tar.gz postgresql-2dc08bd6179d8cf480c93701010c19ad7a9891d8.zip | |
Properly determine length for on-disk TOAST values
In detoast_attr_slice, VARSIZE_ANY was used to compute compressed length
of on-disk TOAST values. That's incorrect, because the varlena value may
be just a TOAST pointer, producing either bogus value or crashing.
This is likely why the code was crashing on big-endian machines before
540f31680913 replaced the VARSIZE with VARSIZE_ANY, which however only
masked the issue.
Reported-by: Rushabh Lathia
Discussion: https://postgr.es/m/CAL-OGkthU9Gs7TZchf5OWaL-Gsi=hXqufTxKv9qpNG73d5na_g@mail.gmail.com
Diffstat (limited to 'src/backend/utils/adt/ruleutils.c')
0 files changed, 0 insertions, 0 deletions