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 ------ REL_10_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/680aabd2f9e88a1cb9e4808682a00ad50c2acf52 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(-)