patch 8.2.3484: crash when going through spell suggestions Commit: https://github.com/vim/vim/commit/e275ba4fc994474155fbafe8b87a6d3b477456ba Author: Bram Moolenaar <Bram@vim.org> Date: Wed Oct 6 13:41:07 2021 +0100 patch 8.2.3484: crash when going through spell suggestions Problem: Crash when going through spell suggestions. Solution: Limit the text length for finding suggestions to the original length. Do not update buffers when exiting. (closes #8965)

--- a/src/spellsuggest.c
+++ b/src/spellsuggest.c
@@ -1178,6 +1178,11 @@ suggest_try_change(suginfo_T *su)
     p = su->su_badptr + su->su_badlen;
     (void)spell_casefold(curwin, p, (int)STRLEN(p), fword + n, MAXWLEN - n);
 
+    // Make sure the resulting text is not longer than the original text.
+    n = (int)STRLEN(su->su_badptr);
+    if (n < MAXWLEN)
+	fword[n] = NUL;
+
     for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi)
     {
 	lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi);