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MDEV-7222: Cluster Node Crash at CREATE DEFINER statement

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Check whether the definer host string is not null before
appending it to the specified buffer.
This commit is contained in:
Nirbhay Choubey
2015-01-02 10:01:09 -05:00
parent 25aaa652c4
commit 455f77bdbb
3 changed files with 19 additions and 1 deletions
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2
sql/sql_show.cc
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@@ -2140,7 +2140,7 @@ void append_definer(THD *thd, String *buffer, const LEX_STRING *definer_user,
{
buffer->append(STRING_WITH_LEN("DEFINER="));
append_identifier(thd, buffer, definer_user->str, definer_user->length);
if (definer_host->str[0])
if (definer_host->str && definer_host->str[0])
{
buffer->append('@');
append_identifier(thd, buffer, definer_host->str, definer_host->length);