> YAMAMOTO Takashi wrote:
> 
> > i don't think sodisconnect is an appropriate place to free a credential.
> > you still leak a credential if the socket is not connected at all.
> > besides, what will happen if the socket is reconnected?
> > 
> > sofree seems more appropriate, but i vaguely remember that it can be called
> > from interrupt context.  (please confirm.)
> 
> Briefly looking at the code suggests that sofree() would be "safe"; but
> how do I confirm?

read the code carefully? :)
seriously, i don't know a better way than it.

grep showed me the following.
	tcp_input -> tcp_close -> in_pcbdetach -> sofree

YAMAMOTO Takashi