pgsql: Avoid null pointer dereference crash after OOM in Snowball stemm - Mailing list pgsql-committers

Avoid null pointer dereference crash after OOM in Snowball stemmers.

Absorb upstream bug fix (their commit
e322673a841d9abd69994ae8cd20e191090b6ef4), which prevents a null
pointer dereference crash if SN_create_env() gets a malloc failure
at just the wrong point.

Thanks to Maksim Korotkov for discovering the null-pointer
bug and submitting the fix to upstream snowball.

Reported-by: Maksim Korotkov <m.korotkov@postgrespro.ru>
Author: Maksim Korotkov <m.korotkov@postgrespro.ru>
Discussion: https://postgr.es/m/1d1a46-67ab1000-21-80c451@83151435
Backpatch-through: 13

Branch
------
REL_17_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/7edd2cbc535cc093abc84ccc5764d794609e1473

Modified Files
--------------
src/backend/snowball/libstemmer/api.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)