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Bug#12361113: CRASH WHEN "LOAD INDEX INTO CACHE" WITH TOO

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SMALL KEY CACHE

The server crashed on division by zero because the key cache was not
initialized and the block length was 0 which was used in a division.

The fix was to not allow CACHE INDEX if the key cache was not initiallized.
Thus never try LOAD INDEX INTO CACHE for an uninitialized key cache.

Also added some windows files/directories to .bzrignore.
This commit is contained in:
Mattias Jonsson
2011-12-12 14:07:02 +01:00
parent 138df47b49
commit beedf6b261
5 changed files with 49 additions and 0 deletions
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5
sql/sql_table.cc
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@@ -2680,6 +2680,11 @@ bool mysql_assign_to_keycache(THD* thd, TABLE_LIST* tables,
DBUG_RETURN(TRUE);
}
pthread_mutex_unlock(&LOCK_global_system_variables);
if (!key_cache->key_cache_inited)
{
my_error(ER_UNKNOWN_KEY_CACHE, MYF(0), key_cache_name->str);
DBUG_RETURN(TRUE);
}
check_opt.key_cache= key_cache;
DBUG_RETURN(mysql_admin_table(thd, tables, &check_opt,
"assign_to_keycache", TL_READ_NO_INSERT, 0, 0,