Avoid possible segfault in psql's tab completion. Fix oversight in bd1276a3c: the "words_after_create" stanza in psql_completion() requires previous_words_count > 0, since it uses prev_wd. This condition was formerly assured by the if-else chain above it, but no more. If there were no previous words then we'd dereference an uninitialized pointer, possibly causing a segfault.
Report and patch by Anthonin Bonnefoy. Discussion: https://postgr.es/m/cao6_xqrsre7c_i+d7hm07k3+6s0jtammr60ry41xzaa29ae...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/95eb4cd4ff0648afc32abbfaacc9718f6b91bf7b Modified Files -------------- src/bin/psql/tab-complete.in.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
