Error writing to a file, can't log in. (2 replies)

Hi all.

I am getting this error and can't seem to resolve it.
"SQLSTATE[HY000]: General error: 1 Can't create/write to file '/tmp/#sql_5b17_5.MYI' (Errcode: 13)"

Our server did get hacked, and we fixed that, I'm just wondering it we tightened things down too tight.
Any help would be appreciated.

Thanks!