Bug 203879

Summary: mount_smbfs panic at smbutil logout
Product: Base System Reporter: mwlucas
Component: kernAssignee: freebsd-bugs (Nobody) <bugs>
Status: New ---    
Severity: Affects Some People CC: benno, ngie
Priority: ---    
Version: CURRENT   
Hardware: amd64   
OS: Any   
Attachments:
Description Flags
core.txt none

Description mwlucas 2015-10-19 19:18:38 UTC
Created attachment 162216 [details]
core.txt

Running today's current, the following sequence always panics the machine.

smbutil lookup fileserver
Got response from 203.0.113.77
IP address of fileserver: 203.0.113.77
storm~;smbutil login //mwlucas@fileserver
Password:
smbutil: unable to open connection: syserr = Authentication error
smbutil: could not login to server FILESERVER: syserr = Authentication error
storm~;smbutil login //mwlucas@fileserver
Password:
Connected to MWLUCAS
storm~;smbutil logout //mwlucas@fileserver

"fileserver" is a Win 7 VM, fresh install, no security updates, behind a firewall.

/etc/nsmb.conf is:

[default]
nbns=203.0.113.77
username=mwlucas
workgroup=MWL
password=$$obfuscated

100% reproducible.
Comment 1 Enji Cooper freebsd_committer 2015-10-19 19:23:49 UTC
This panic looks kind of reminiscent to another one that's popped up at $work recently, which was tied down to a failed KASSERT.