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patch 8.2.2078: illegal memory access when using :print on invalid text

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Problem:    Illegal memory access when using :print on invalid text. (Dhiraj
            Mishra)
Solution:   Check for more composing characters than supported. (closes #7399)
This commit is contained in:
Bram Moolenaar
2020-12-02 12:37:37 +01:00
parent a452b808b4
commit 1cbfc9914d
3 changed files with 16 additions and 1 deletions
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6
src/message.c
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@@ -1859,7 +1859,11 @@ msg_prt_line(char_u *s, int list)
else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1)
{
col += (*mb_ptr2cells)(s);
if (lcs_nbsp != NUL && list
if (l >= MB_MAXBYTES)
{
STRCPY(buf, "¿");
}
else if (lcs_nbsp != NUL && list
&& (mb_ptr2char(s) == 160
|| mb_ptr2char(s) == 0x202f))
{