Smbd crash while closing connection

[Jeremy Allison]

On Thu, Feb 26, 2015 at 11:10:54PM +0530, Shilpa K wrote:
> Hello,
> 
> The problem reported in this mail thread can be reproduced with below steps:
> 
> 1. Map network drive (Z:) to a share winshare
> 2. Using fsmgmt.msc on windows system, connect to Server. Go to shares
> section and stop sharing winshare.
> 3. Disconnect mapped network drive Z:
> 
> Smbd cores with the same foot prints reported in this mail thread.
> 
> In the steps reported above, as part of step 2, smbd clears the
> corresponding share entry (service name) in ServicePtrs. While executing
> step 3, when smbd tries to get service name based on service number, it
> will get a NULL service name because the folder path was already stopped
> from being shared. Due to this NULL service name, smbd cores in strlcpy().
> 
> Can you please let me know if we can just return from yield_connection in
> case the service name is NULL?

Can you reproduce this with 4.x, or is this a 3.x-only bug ?