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Bug#48319: Server crashes on "GRANT/REVOKE ... TO CURRENT_USER"

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CURRENT_USER() in GRANT ... TO CURRENT_USER() only gave us a definer,
not a full user (i.e., password-element was not initiliazed). Hence
dereferencing the password led to a crash.

Properly initializes definers now, just so there are no misunderstandings.
Also does some magic so IDENTIFIED BY ... works with CURRENT_USER().
This commit is contained in:
Tatiana A. Nurnberg
2009-10-29 22:06:10 -07:00
parent fccc33a3ca
commit 305f78c374
4 changed files with 74 additions and 0 deletions
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5
sql/sql_parse.cc
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@ -7573,6 +7573,9 @@ void get_default_definer(THD *thd, LEX_USER *definer)
definer->host.str= (char *) sctx->priv_host;
definer->host.length= strlen(definer->host.str);
definer->password.str= NULL;
definer->password.length= 0;
}
@ -7624,6 +7627,8 @@ LEX_USER *create_definer(THD *thd, LEX_STRING *user_name, LEX_STRING *host_name)
definer->user= *user_name;
definer->host= *host_name;
definer->password.str= NULL;
definer->password.length= 0;
return definer;
}