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MDEV-34090 Client allows to set character set to utf32 and crashes on the next command

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Disallowing character sets with mbminlen>1 in the client.
This commit is contained in:
Alexander Barkov
2024-11-07 12:16:33 +04:00
parent 425d2521ec
commit 225c17d35c
3 changed files with 24 additions and 0 deletions
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client/mysql.cc
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@@ -3292,6 +3292,9 @@ static int com_charset(String *, char *line)
new_cs= get_charset_by_csname(param, MY_CS_PRIMARY, MYF(MY_WME));
if (new_cs)
{
if (new_cs->mbminlen > 1)
return put_info("Character sets with mbminlen>1 are not supported",
INFO_ERROR, 0);
charset_info= new_cs;
mysql_set_character_set(&mysql, charset_info->csname);
default_charset= (char *)charset_info->csname;