Thread: pgsql: Validate ispell dictionaries more carefully.
Validate ispell dictionaries more carefully. Using incorrect, or just mismatched, dictionary and affix files could result in a crash, due to failure to cross-check offsets obtained from the file. Add necessary validation, as well as some Asserts for future-proofing. Per bug #16050 from Alexander Lakhin. Back-patch to 9.6 where the problem was introduced. Arthur Zakirov, per initial investigation by Tomas Vondra Discussion: https://postgr.es/m/16050-024ae722464ab604@postgresql.org Discussion: https://postgr.es/m/20191013012610.2p2fp3zzpoav7jzf@development Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/8af1624e3f0efd2d029217a91d07bd3795f080a6 Modified Files -------------- src/backend/tsearch/spell.c | 25 ++++++++++++++++++++--- src/test/regress/expected/tsdicts.out | 34 ++++++++++++++++++++++++++++++++ src/test/regress/sql/tsdicts.sql | 37 +++++++++++++++++++++++++++++++++++ 3 files changed, 93 insertions(+), 3 deletions(-)