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patch 9.1.0065: Segfault with CompleteChanged autocommand

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Problem:  Segfault with CompleteChanged autocommand
          (markonm )
Solution: Test match->cp_prev for being NULL before accessing it

closes: #13929

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2024-01-29 21:46:58 +01:00
parent 6e0a18f82b
commit fef6630166
3 changed files with 19 additions and 2 deletions
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3
src/insexpand.c
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@@ -3075,7 +3075,8 @@ info_add_completion_info(list_T *li)
// Skip the element with the CP_ORIGINAL_TEXT flag at the beginning, in case of
// forward completion, or at the end, in case of backward completion.
match = forward ? match->cp_next : (compl_no_select && match_at_original_text(match) ? match->cp_prev : match->cp_prev->cp_prev);
match = forward || match->cp_prev == NULL ? match->cp_next :
(compl_no_select && match_at_original_text(match) ? match->cp_prev : match->cp_prev->cp_prev);
while (match != NULL && !match_at_original_text(match))
{