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vim-patch:8.2.3582: reading uninitialized memory when giving spell suggestions

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Problem:    Reading uninitialized memory when giving spell suggestions.
Solution:   Check that preword is not empty.
15d9890eee
This commit is contained in:
f380cedric
2022-01-06 16:59:54 +01:00
parent 09d270bcea
commit c6dddc3464
2 changed files with 9 additions and 1 deletions
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2
src/nvim/spell.c
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@@ -4082,7 +4082,7 @@ static void suggest_trie_walk(suginfo_T *su, langp_T *lp, char_u *fword, bool so
// char, e.g., "thes," -> "these".
p = fword + sp->ts_fidx;
MB_PTR_BACK(fword, p);
if (!spell_iswordp(p, curwin)) {
if (!spell_iswordp(p, curwin) && *preword != NUL) {
p = preword + STRLEN(preword);
MB_PTR_BACK(preword, p);
if (spell_iswordp(p, curwin)) {